A method and system for estimating carbon emissions of construction land in urban master planning

Abstract

The present invention proposes a method and system for estimating carbon emissions from construction land in a city master plan, which belongs to the field of urban planning and low-carbon city planning, and aims to solve the problem that the existing technology cannot estimate carbon emissions in the city master planning stage. The present invention establishes a carbon emissions model for construction land in a city master plan, and uses the energy type for estimating carbon emissions from construction land in a city master plan, the land measurement scale for carbon emissions, and the "energy-construction land" measurement system and the data and normative indicators required for carbon emissions as input parameters, and inputs them into the carbon emissions model for construction land in a city master plan, thereby obtaining an estimation result of carbon emissions from construction land in a city master plan. The carbon emissions estimation method proposed in the present invention estimates the carbon emissions of the urban living system with construction land as the measurement unit, which makes up for the urban carbon emissions estimation method in the city master planning stage, and provides quantitative technical support for the formulation of urban carbon emission reduction measures.

Description

Technical Field

[0001] The present invention belongs to the field of urban planning and low-carbon urban planning, and in particular relates to a method and system for estimating carbon emissions of construction land in a city master plan. Background Art

[0002] Cities are the main source of carbon emissions, accounting for more than 70% of the world's total carbon emissions. At present, the main methods for calculating urban carbon emissions at home and abroad are system dynamic simulation method and urban greenhouse gas inventory method, which are mainly applicable to the current carbon emission calculation of urban built-up areas, and lack carbon emission estimation methods for urban construction land in the urban master planning stage. The existing urban carbon emission calculation methods are mostly based on the five sectors of energy, industrial production process, agriculture, land use change and forestry, and waste divided by the IPCC, or from the perspective of consumption of internal urban products, to calculate the total carbon emissions generated by all traditional fossil energy consumed by the "urban living system + production system". The total fossil fuel consumption mentioned above is not involved in the urban master planning stage, and the existing carbon emission calculation methods cannot be used. Summary of the invention

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a method and system for estimating carbon emissions from construction land in a city master plan, aiming to solve the defective technical problem that the prior art cannot estimate carbon emissions in the city master planning stage.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] The present invention proposes a method for estimating carbon emissions of urban master planning construction land, comprising the following steps:

[0006] Determine the energy use type for estimating carbon emissions from construction land in the city's master plan; determine the land use calculation scale and "energy use-construction land" calculation system for estimating carbon emissions from construction land in the city's master plan based on the urban construction planning system and carbon emissions energy use type;

[0007] Obtain the statistical data, planning indicators and regulatory indicators required to estimate carbon emissions from construction land in the city master plan;

[0008] Establish a carbon emission model for construction land in the city master plan;

[0009] The statistical data, planning indicators and normative indicators required for carbon emissions are used as input parameters of the urban master plan construction land carbon emissions model to achieve the estimation of urban master plan construction land carbon emissions model.

[0010] Preferably, the carbon emission energy types include carbon emissions from electricity consumption, carbon emissions from natural gas consumption and carbon emissions from heating.

[0011] Preferably, the urban construction regulation system includes the "Urban Land Classification and Planning and Construction Land Standards" and the land use planning map of urban planning;

[0012] Among them, the planned construction land R, construction land B, construction land W, construction land S, construction land U and construction land G are calculated based on the major land classification categories; the planned construction land M1, construction land M2 and construction land M3 are calculated based on the medium land classification categories; the planned construction land A1, construction land A2, construction land A4, construction land A5, construction land A6, construction land A7, construction land A8 and construction land A9 are calculated based on the medium land classification categories; the planned construction land A31, construction land A32, construction land A33, construction land A34 and construction land A35 are calculated based on the minor land classification categories;

[0013] The “energy use-construction land” calculation system includes land used to calculate carbon emissions from electricity use, land used to calculate carbon emissions from heating use, and land used to calculate carbon emissions from gas use;

[0014] Among them, the land used for calculating electricity carbon emissions includes construction land R, construction land A, construction land B, construction land M, construction land W, construction land S, construction land U and construction land G;

[0015] The land used for calculating heating carbon emissions includes construction land R, construction land A and construction land B;

[0016] The land used for calculating carbon emissions from gas consumption includes construction land R, construction land A31, construction land A33, construction land A5 and construction land B.

[0017] Preferably, the statistical data required for estimating the carbon emissions of construction land in the city master plan include: current statistical data from the city statistical yearbook in recent years and current statistical data from the China Electricity Statistical Yearbook;

[0018] The current statistical data in the city statistical yearbook include the city’s current annual permanent population, natural gas household consumption, and annual natural gas sales volume;

[0019] The current statistics from the China Electricity Statistical Yearbook include the thermal power generation and total power generation in the province where the city is located;

[0020] The planning indicators for obtaining carbon emissions from construction land in the city master plan include construction land area, floor area ratio, and planned total population;

[0021] The standard indicators for obtaining carbon emissions from urban master planning construction land include:

[0022] 1) The standard indicators for calculating carbon emissions from electricity consumption include: load index per unit of construction land, simultaneous coefficient, classified comprehensive electricity consumption index, and average carbon dioxide emission factor of the regional power grid;

[0023] 2) Standard indicators for calculating heating carbon emissions include: heating load per unit building area, heating hours, thermal emission factor, and thermalization coefficient;

[0024] 3) Standard indicators for calculating carbon emissions from gas consumption include: per capita comprehensive gas consumption index, commercial gas consumption index, per capita educational land index, single construction land control index for comprehensive hospitals, public building gas consumption index, RZ low calorific value, CC unit calorific value carbon content, α carbon oxidation rate, and ρ is the ratio of the molecular weight of CO2 to carbon.

[0025] Preferably, the carbon emission model of urban master planning construction land is as shown in formula (1):

[0026] CE i总 =CE i电 +CE i热 +CE i气 (1)

[0027] Among them, CE i总 represents the total carbon emissions of the i-th type of land; CE i电 represents the total carbon emissions from electricity consumption of the i-th type of land; CE i热 represents the total carbon emission of land heating of type i; CE i气 Represents the total carbon emissions from gas use for the i-th type of land.

[0028] Preferably, the carbon emissions of electricity used for construction land CE i电 , Construction land heating carbon emissions CE i热 and carbon emissions from construction land use CE i气 The calculation method of is shown in formula (2), formula (3) and formula (4):

[0029] Carbon emissions from electricity consumption on construction land CE i电 The calculation method is shown in formula (2):

[0030]

[0031] Among them, S i represents the total land area of ​​the i-th type of land; E i H represents the comprehensive electricity consumption index per unit of the i-th type of land; e Indicates the annual maximum utilization load hours; D 火 , D 总 represents the thermal power generation and total power generation of the province where the city is located; μ is the simultaneous coefficient; EFe represents the average CO2 emission factor of the power grid;

[0032] Carbon emissions from construction land heating CE i热 The calculation method is shown in formula (3):

[0033] CE i热 =S i ×β i ×H h ×fi×J×0.0036×EF h (3)

[0034] Among them, β i represents the heating load per unit building area of ​​the i-th type of land; H h represents the annual heating hours; fi represents the land use volume ratio; J represents the thermal coefficient; 0.0036 is the conversion coefficient from energy unit kWh to GJ; EFh represents the thermal carbon emission factor;

[0035] Carbon emissions from construction land use CE i气 The calculation method is shown in formula (4):

[0036] CE i气 =Q i气 ×RZ×CC×α×ρ (4)

[0037] Among them, Q i气 It represents the natural gas consumption of the i-th type of land use. In the calculation of land use gas consumption, the heat unit GJ is used to measure the natural gas consumption; RZ is the average low calorific value of natural gas; CC is the carbon content of fuel per unit calorific value; α is the carbon oxidation rate; ρ is the ratio of the molecular weight of CO2 to carbon.

[0038] Preferably, the gas consumption of the construction land R and the construction land B is calculated according to the current status of urban gas consumption. The calculation method of the gas consumption of the construction land R and the construction land B is shown in formula (5) and formula (6):

[0039]

[0040] Q B =Q R ×q-(Q A31 +Q A33 +Q A5 ) (6)

[0041] The gas consumption of construction land A31, construction land A33 and construction land A5 is calculated according to the current status of urban gas consumption. The calculation methods of the gas consumption of construction land A31, construction land A33 and construction land A5 are shown in formula (7), formula (8) and formula (9):

[0042]

[0043]

[0044] Q A5 =C×w (9)

[0045] Among them, Q represents natural gas consumption; S represents construction land area; W represents the current gas consumption in the city; s represents the per capita indicator of educational land; C represents the single construction land control indicator of comprehensive hospitals; P represents the total planned urban population; ω represents the annual per capita comprehensive gas consumption indicator; w represents the gas consumption indicator of public buildings; and q represents the commercial gas consumption indicator.

[0046] The present invention also proposes an estimation system for a carbon emission estimation method for construction land in a city master plan, comprising:

[0047] A module for determining a land use calculation scale and a calculation system for carbon emissions, wherein the module is used to determine the type of energy used for carbon emissions from construction land in the city's overall planning; and to determine the land use calculation scale and "energy-construction land" calculation system for carbon emissions from construction land in the city's overall planning, based on the city's construction planning system and the type of energy used for carbon emissions;

[0048] A data acquisition module, which is used to obtain statistical data, planning indicators and regulatory indicators required for estimating carbon emissions from construction land in the city's overall planning;

[0049] A carbon emission model establishment module, wherein the carbon emission model establishment module is used to establish a carbon emission model for construction land in the city master plan;

[0050] A carbon emission estimation module is used to use the statistical data, planning indicators and normative indicators required for carbon emissions as input parameters of the urban master plan construction land carbon emission model to realize the estimation of the urban master plan construction land carbon emission model.

[0051] A computer device comprises a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of a method for estimating carbon emissions of construction land in a city master plan when executing the computer program.

[0052] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of a method for estimating carbon emissions of construction land in a city master plan.

[0053] Compared with the prior art, the present invention has the following beneficial effects:

[0054] The present invention proposes a method for estimating carbon emissions from construction land in a city master plan. The method uses the energy type for estimating carbon emissions from construction land in a city master plan, the land measurement scale for carbon emissions, the "energy-construction land" measurement system, and the statistical data, planning indicators, and normative indicators required for carbon emissions as input parameters, and inputs them into the established carbon emissions model for construction land in a city master plan, thereby obtaining the estimated results of carbon emissions from construction land in a city master plan. The present invention estimates the carbon emissions of the urban living system using construction land as the measurement unit, and provides quantitative technical support for planners to find the intrinsic relationship between urban carbon emissions and the planned land structure, function, and development intensity, as well as to optimize and adjust the land structure of the planning scheme itself; the method has strong versatility and operability, and realizes that planners directly measure carbon emissions from the planning scheme itself in the city master planning stage, filling the gap in the city carbon emissions estimation method in the city master planning stage. The data required for the carbon emission estimation method constructed by the present invention are all existing statistical data, planning indicators and normative indicators. It only needs to input the existing data into the carbon emission model of urban master planning construction land to realize the carbon emission estimation of urban master planning construction land. The operation method is simple.

[0055] The present invention proposes a system for estimating carbon emissions from urban master planning construction land, which adopts a modular concept to achieve carbon emissions estimation for urban master planning construction land, making each module independent of each other, thereby facilitating unified management of each module. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 A flow chart of a method for estimating carbon emissions from urban master planning construction land of the present invention;

[0057] Figure 2 This is a system diagram for estimating carbon emissions from construction land in the overall urban planning of the present invention. DETAILED DESCRIPTION

[0058] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0059] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0060] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0061] The present invention proposes a method for estimating carbon emissions from urban master planning construction land, such as Figure 1 As shown, the following steps are included:

[0062] Determine the energy use type for estimating carbon emissions from construction land in the city's master plan; determine the land use calculation scale and "energy use-construction land" calculation system for estimating carbon emissions from construction land in the city's master plan based on the urban construction planning system and carbon emissions energy use type;

[0063] Obtain the statistical data, planning indicators and regulatory indicators required to estimate the carbon emissions of construction land in the city's overall planning, including the latest city statistical yearbook data, the latest China Electricity Statistical Yearbook data, planning scheme indicators and planning regulatory indicators;

[0064] Establish a carbon emission model for construction land in the city master plan;

[0065] The statistical data, planning indicators and normative indicators required for carbon emissions are input as input parameters into the established urban master plan construction land carbon emissions model to obtain the estimated results of urban master plan construction land carbon emissions.

[0066] The present invention proposes a method for estimating carbon emissions of urban master planning construction land, which specifically includes the following steps:

[0067] Specifically, the carbon emission energy types include: carbon emissions from electricity, carbon emissions from natural gas and carbon emissions from heating. The carbon emissions from electricity, carbon emissions from natural gas and carbon emissions from heating are carbon emissions from urban living systems. The algorithm does not include carbon emissions from fossil fuels consumed in the production process of the urban production system, and carbon emissions from fossil fuels consumed by vehicles in the urban transportation system;

[0068] Specifically, the urban construction regulation system includes the "Urban Land Classification and Planning and Construction Land Standards" and the land use planning map of urban planning;

[0069] Among them, the planned construction land R, construction land B, construction land W, construction land S, construction land U and construction land G are calculated based on the major land classification categories; the planned construction land M1, construction land M2 and construction land M3 in the planned construction land M are calculated based on the medium land classification categories; the planned construction land A1, construction land A2, construction land A4, construction land A5, construction land A6, construction land A7, construction land A8 and construction land A9 in the planned construction land A are calculated based on the medium land classification categories; the planned construction land A31, construction land A32, construction land A33, construction land A34 and construction land A35 in the planned construction land A3 are calculated based on the minor land classification categories.

[0070] Secondly, the “energy use-construction land” calculation system includes land used to calculate carbon emissions from electricity use, land used to calculate carbon emissions from heating use, and land used to calculate carbon emissions from gas use;

[0071] Among them, the land used for calculating electricity carbon emissions includes construction land R, construction land A, construction land B, construction land M, construction land W, construction land S, construction land U and construction land G;

[0072] The land used for calculating heating carbon emissions includes construction land R, construction land A and construction land B;

[0073] The land used for calculating carbon emissions from gas consumption includes construction land R, construction land A31, construction land A33, construction land A5 and construction land B.

[0074] Specifically, the data required for estimating the carbon emissions of construction land in the city master plan include: current statistical data from the city statistical yearbook in recent years and current statistical data from the China Electricity Statistical Yearbook;

[0075] 1) Current statistical data based on the most recent city statistical yearbook, including: the city’s current annual permanent population, natural gas household consumption, and annual natural gas sales volume;

[0076] 2) Based on the current statistical data of China Electricity Statistical Yearbook in recent years, including: thermal power generation and total power generation in the province where the city is located.

[0077] The planning indicators for obtaining carbon emissions from construction land in the city’s overall planning include construction land area, floor area ratio, and total planned population.

[0078] The standard indicators for obtaining carbon emissions from urban master planning construction land include:

[0079] ① The standard indicators for calculating carbon emissions from electricity consumption include: load index per unit of construction land, simultaneous coefficient, classified comprehensive electricity consumption index, and average carbon dioxide emission factor of the regional power grid;

[0080] ② The standard indicators for calculating heating carbon emissions include: heating load per unit building area, heating hours, thermal emission factor, and thermalization coefficient;

[0081] ③ The standard indicators for calculating carbon emissions from gas consumption include: per capita comprehensive gas consumption index, commercial gas consumption index, per capita educational land index, single construction land control index for comprehensive hospitals, public building gas consumption index, RZ low calorific value, CC unit calorific value carbon content, α carbon oxidation rate, and ρ is the ratio of the molecular weight of CO2 to carbon.

[0082] Specifically, the carbon emission model of the urban master plan construction land is shown in formula (1):

[0083] CE i总 =CE i电 +CE i热 +CE i气 (1)

[0084] Among them, CE i总 represents the total carbon emissions of the i-th type of land; CE i电 represents the total carbon emissions from electricity consumption of the i-th type of land; CE i热 represents the total carbon emission of land heating of type i; CE i气 Represents the total carbon emissions from gas use for the i-th type of land.

[0085] Carbon emissions from electricity consumption on construction land CE i电 , Construction land heating carbon emissions CE i热 and carbon emissions from construction land use CE i气 The calculation method of is shown in formula (2), formula (3) and formula (4):

[0086] ① Carbon emissions from electricity consumption on construction land CE i电 The calculation method is shown in formula (2):

[0087]

[0088] Among them, S i represents the total area of ​​the i-th type of land; E i H represents the comprehensive electricity consumption index per unit of the i-th type of land; e Indicates the annual maximum utilization load hours; D 火 , D 总 represents the thermal power generation and total power generation of the province where the city is located; μ is the simultaneous coefficient; EF e represents the average CO2 emission factor of the power grid.

[0089] ②Construction land heating carbon emissions CE i热 The calculation method is shown in formula (3):

[0090] CE i热 =S i ×β i ×H h ×fi×J×0.0036×EF h (3)

[0091] Among them, β i represents the heating load per unit building area of ​​the i-th type of land; H h represents the annual heating hours; fi represents the land use volume ratio; J represents the thermal coefficient; 0.0036 is the conversion factor from energy unit kWh to GJ; EF h Represents the thermal carbon emission factor.

[0092] ③Construction land gas carbon emissions CE i气 The calculation method is shown in formula (4):

[0093] CE i气 =Q i气 ×RZ×CC×α×ρ (4)

[0094] Where: Q i气 It represents the natural gas consumption of the i-th type of land use. In the calculation of land use gas consumption, the heat unit GJ is used to measure the natural gas consumption; RZ is the average low calorific value of natural gas; CC is the carbon content of fuel per unit calorific value; α is the carbon oxidation rate; ρ is the ratio of the molecular weight of CO2 to carbon.

[0095] Specifically, according to the current situation of urban gas consumption, only the gas consumption of construction land R and construction land B is calculated. The calculation method of the gas consumption of construction land R and construction land B is shown in formula (5) and formula (6):

[0096]

[0097] Q B =Q R ×q-(Q A31 +Q A33 +Q A5 ) (6)

[0098] According to the current situation of urban gas consumption, only the gas consumption of construction land A31, construction land A33 and construction land A5 is calculated. The calculation methods of the gas consumption of construction land A31, construction land A33 and construction land A5 are shown in formula (7), formula (8) and formula (9):

[0099]

[0100]

[0101] Q A5 =C×w (9)

[0102] Among them, Q represents natural gas consumption; S represents construction land area; W represents the current gas consumption in the city; s represents the per capita indicator of educational land; C represents the single construction land control indicator of comprehensive hospitals; P represents the total planned urban population; ω represents the annual per capita comprehensive gas consumption indicator; w represents the gas consumption indicator of public buildings; and q represents the commercial gas consumption indicator.

[0103] Example:

[0104] The estimated carbon emissions from construction land in the Xixian New Area urban master plan are determined as the carbon emissions from the urban life system of the Xixian New Area, including carbon emissions from electricity, natural gas, and heating.

[0105] Based on the Urban Land Classification and Planning and Construction Land Standards, combined with the master plan of the Xixian New District Urban Master Plan (2016-2030), the “energy use-construction land” calculation system for estimating carbon emissions from the urban living system of the Xixian New District was determined, including the scale and type of land used for calculation, as shown in Table 1:

[0106] Table 1: Carbon emissions from construction land in Xixian New Area’s overall urban planning “energy use-construction land” calculation system

[0107]

[0108] The current statistical data are obtained from the 2020 Urban Construction Statistical Yearbook and the 2020 China Electricity Statistical Yearbook, including: the current annual permanent population of the city, the household natural gas consumption of the city, the annual sales volume of natural gas in the city, the thermal power generation and total power generation of the province where the city is located, as shown in Table 2:

[0109] Table 2 Statistical data of the current situation of Xixian New Area in 2019

[0110]

[0111] With reference to the Technical Regulations on Urban and Rural Planning Management of Xi'an, the planning scheme indicators were obtained from the master plan map of the Xixian New District Urban Master Plan (2016-2030), including: construction land area, floor area ratio, and planned total population, as shown in Table 3:

[0112] Table 3 Indicators of construction land planning scheme in the overall planning of Xixian New District

[0113]

[0114] Based on the city statistical yearbook data and planning scheme indicators, and referring to the urban energy infrastructure system planning standards, the standard indicators for estimating the carbon emissions of construction land in the Xixian New Area urban master plan are selected, including:

[0115] 1) The calculation standard indicators of electricity carbon emissions include: unit construction land load index, simultaneous coefficient, and regional power grid average carbon dioxide emission factor, as shown in Table 4:

[0116] Table 4 Calculation standard indicators of carbon emissions from electricity consumption in construction land of Xixian New Area urban master plan

[0117]

[0118]

[0119] 2) The standard indicators for calculating heating carbon emissions include: heating load per unit building area, heating hours, thermal emission factor, and thermalization coefficient, as shown in Table 5:

[0120] Table 5 Calculation standard indicators of carbon emissions from heating of construction land in the overall urban planning of Xixian New Area

[0121]

[0122] 3) The standard indicators for calculating carbon emissions from gas consumption include: per capita comprehensive gas consumption index, commercial gas consumption index, per capita education land index, single construction land control index for comprehensive hospitals, gas consumption index for public buildings, RZ low calorific value, CC unit calorific value carbon content, α carbon oxidation rate, and ρ is the ratio of the molecular weight of CO2 to carbon, as shown in Table 6:

[0123] Table 6 Calculation standard indicators of carbon emissions from construction land use in the overall urban planning of Xixian New Area

[0124]

[0125]

[0126] Substitute the acquired data and indicators into the calculation formula (1) of the carbon emissions of construction land in the city master plan to obtain the carbon emissions of construction land in the city master plan. The carbon emissions model of construction land in the city master plan is shown in formula (1):

[0127] CE i总 =CE i电 +CE i热 +CE i气 (1)

[0128] Among them: CE i总 represents the total carbon emissions of the i-th type of land; CE i电represents the total carbon emissions from electricity consumption of the i-th type of land; CE i热 represents the total carbon emission of land heating of type i; CE i气 The total carbon emissions from gas consumption of the i-th type of land. The carbon emissions from electricity consumption of the above-mentioned construction land CE i电 , Construction land heating carbon emissions CE i热 and carbon emissions from construction land use CE i气 The calculation method of is shown in formula (2), formula (3) and formula (4):

[0129] ① Carbon emissions from electricity consumption on construction land CE i电 The calculation method is shown in formula (2):

[0130]

[0131] Among them, S i represents the total land area of ​​the i-th type of land; E i H represents the comprehensive electricity consumption index per unit of the i-th type of land; e Indicates the annual maximum utilization load hours; D 火 , D 总 represents the thermal power generation and total power generation of the province where the city is located; μ is the simultaneous coefficient; EF e represents the average CO2 emission factor of the power grid.

[0132] ②Construction land heating carbon emissions CE i热 The calculation method is shown in formula (3):

[0133] CE i热 =S i ×β i ×H h ×fi×J×0.0036×EF h (3)

[0134] Among them, β i represents the heating load per unit building area of ​​the i-th type of land; H h represents the annual heating hours; fi represents the land use volume ratio; J represents the thermal coefficient; 0.0036 is the conversion factor from energy unit kWh to GJ; EF h Represents the thermal carbon emission factor.

[0135] ③Construction land gas carbon emissions CE i气 The calculation method is shown in formula (4):

[0136] CE i气 =Q i气 ×RZ×CC×α×ρ (4)

[0137] Among them, Q i气It represents the natural gas consumption of the i-th type of land use. In the calculation of land use gas consumption, the heat unit GJ is used to measure the natural gas consumption; RZ is the average low calorific value of natural gas; CC is the carbon content of fuel per unit calorific value; α is the carbon oxidation rate; ρ is the ratio of the molecular weight of CO2 to carbon.

[0138] ④ According to the current situation of urban gas consumption, only the gas consumption of construction land R and construction land B is calculated. The calculation method of the gas consumption of construction land R and construction land B is shown in formula (5) and formula (6):

[0139]

[0140] Q B =Q R ×q-(Q A31 +Q A33 +Q A5 ) (6)

[0141] According to the current situation of urban gas consumption, only the gas consumption of construction land A31, construction land A33 and construction land A5 is calculated. The calculation methods of the gas consumption of construction land A31, construction land A33 and construction land A5 are shown in formula (7), formula (8) and formula (9):

[0142]

[0143]

[0144] Q A5 =C×w (9)

[0145] Among them, Q represents the natural gas consumption; S represents the construction land area; W represents the current urban gas consumption; s represents the per capita indicator of educational land; C represents the single construction land control indicator of comprehensive hospitals; P represents the total population of urban planning; ω represents the annual per capita comprehensive gas consumption indicator; w represents the public building gas consumption indicator; q represents the commercial gas consumption indicator. The final calculation results of carbon emissions are shown in Table 7:

[0146] Table 7 Carbon emissions from construction land in the overall planning of Xixian New Area

[0147]

[0148]

[0149] The present invention proposes an estimation system for a carbon emission estimation method for urban master planning construction land, such as Figure 2 As shown, including:

[0150] A module for determining a land use calculation scale and a calculation system for carbon emissions, wherein the module is used to determine the type of energy used for carbon emissions from construction land in the city's overall planning; and to determine the land use calculation scale and "energy-construction land" calculation system for carbon emissions from construction land in the city's overall planning, based on the city's construction planning system and the type of energy used for carbon emissions;

[0151] A data acquisition module, which is used to obtain statistical data, planning indicators and regulatory indicators required for estimating carbon emissions from construction land in the city's overall planning;

[0152] A carbon emission model establishment module, wherein the carbon emission model establishment module is used to establish a carbon emission model for construction land in the city master plan;

[0153] A carbon emission estimation module is used to use the statistical data, planning indicators and normative indicators required for carbon emissions as input parameters of the urban master plan construction land carbon emission model to realize the estimation of the urban master plan construction land carbon emission model.

[0154] The present invention proposes a method for estimating carbon emissions from construction land in a city master plan. The method first determines the energy type for estimating carbon emissions from construction land in a city master plan; determines the land measurement scale and "energy-construction land" measurement system for estimating carbon emissions from construction land in a city master plan; obtains the data and specification indicators required for estimating carbon emissions from construction land in a city master plan, including the latest city statistical yearbook data, the latest China Electricity Statistical Yearbook data, planning scheme indicators and planning specification indicators; then establishes a carbon emissions model for construction land in a city master plan; finally, substitutes the acquired data and indicators into the carbon emissions model for construction land in a city master plan to obtain the carbon emissions estimation result for construction land in a city master plan. The present invention proposes a method for estimating carbon emissions from construction land in a city master plan. The method estimates the carbon emissions of the urban living system with construction land as the measurement unit, which makes up for the urban carbon emissions estimation method in the city master plan stage and provides quantitative technical support for the formulation of urban carbon emission reduction measures. The carbon emission estimation method proposed in the present invention estimates the carbon emissions of the urban living system with construction land as the measurement unit, and provides quantitative technical support for planners to find the intrinsic relationship between urban carbon emissions and planned land structure, function, and development intensity, as well as to optimize and adjust the land structure of the planning scheme itself; the data required for the carbon emission estimation method constructed by the present invention are all existing statistical data, planning scheme indicators and normative indicators. The method has strong versatility and operability, and realizes that planners can directly measure the carbon emissions of the planning scheme itself in the urban master planning stage, filling the gap in the urban carbon emission estimation method in the urban master planning stage.

[0155] A terminal device provided in one embodiment of the present invention comprises: a processor, a memory, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps in the above-mentioned method embodiments are implemented. Alternatively, when the processor executes the computer program, the functions of the modules / units in the above-mentioned device embodiments are implemented.

[0156] The computer program may be divided into one or more modules / units, and the one or more modules / units are stored in the memory and executed by the processor to accomplish the present invention.

[0157] The terminal device may be a computing device such as a desktop computer, a notebook, a palmtop computer, a cloud server, etc. The terminal device may include, but is not limited to, a processor and a memory.

[0158] The processor can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0159] The memory may be used to store the computer programs and / or modules, and the processor implements various functions of the terminal device by running or executing the computer programs and / or modules stored in the memory and calling the data stored in the memory.

[0160] If the module / unit integrated in the terminal device is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present invention implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electric carrier signals and telecommunication signals.

[0161] The above contents are only for explaining the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A method for estimating carbon emissions from urban master planning construction land, characterized in that: The following steps are involved: Determine the energy use type of carbon emissions from urban master plan construction land; determine the land use calculation scale and "energy use-construction land" calculation system for estimated carbon emissions from urban master plan construction land based on the urban construction planning system and carbon emissions energy use type; Obtain the statistical data, planning indicators and regulatory indicators required to estimate carbon emissions from construction land in the city master plan; Establish a carbon emission model for construction land in the city master plan; The statistical data, planning indicators and normative indicators required for carbon emissions are used as input parameters of the urban master plan construction land carbon emissions model to achieve the estimation of urban master plan construction land carbon emissions model; The carbon emission model of urban master planning construction land is shown in formula (1): WHAT i总 =EC i电 +CE i热 +CE i气 (1) Among them, CE i总 represents the total carbon emissions of the i-th type of land; CE i电 represents the total carbon emissions from electricity consumption of the i-th type of land; CE i热 represents the total carbon emission of land heating of type i; CE i气 represents the total carbon emissions from gas use of the i-th type of land; The "energy use-construction land" calculation system includes land used to calculate carbon emissions from electricity use, land used to calculate carbon emissions from heating use, and land used to calculate carbon emissions from gas use; Carbon emissions from electricity consumption on construction land CE i电 , Construction land heating carbon emissions CE i热 and carbon emissions from construction land use CE i气 The calculation method of is shown in formula (2), formula (3) and formula (4): Carbon emissions from electricity consumption on construction land CE i电 The calculation method is shown in formula (2): Among them, S i represents the total area of ​​the i-th type of land; E i H represents the comprehensive electricity consumption index per unit of the i-th type of land; e Indicates the annual maximum utilization load hours; D 火 , D 总 represents the thermal power generation and total power generation of the province where the city is located; μ is the simultaneous coefficient; EF e represents the average CO2 emission factor of the power grid; Carbon emissions from heating of construction sites CD i热 The calculation method is shown in formula (3): WHAT i热 =S i ×β i ×H h ×fi×J×0.0036×EF h (3) Among them, β i represents the heating load per unit building area of ​​the i-th type of land; H h represents the annual heating hours; fi represents the land use volume ratio; J represents the thermal coefficient; 0.0036 is the conversion factor from energy unit kWh to GJ; EF h represents the thermal carbon emission factor; Carbon emissions from construction land use CE i气 The calculation method is shown in formula (4): WHAT i气 =Q i气 ×RZ×CC×α×ρ (4) Among them, Q i气 It represents the natural gas consumption of the i-th type of land use. In the calculation of land use gas consumption, the heat unit GJ is used to measure the natural gas consumption; RZ is the average low calorific value of natural gas; CC is the carbon content of fuel per unit calorific value; α is the carbon oxidation rate; ρ is the ratio of the molecular weight of CO2 to carbon.

2. The carbon emission estimation method for urban master planning construction land according to claim 1 is characterized in that: Carbon emissions energy types include carbon emissions from electricity, carbon emissions from natural gas, and carbon emissions from heating.

3. The carbon emission estimation method for urban master planning construction land according to claim 1 is characterized in that: The urban construction regulation system includes the "Urban Land Classification and Planning and Construction Land Standards" and the land use planning map of urban planning; Among them, the planned construction land R, construction land B, construction land W, construction land S, construction land U and construction land G are calculated based on the major land classification categories; the planned construction land M1, construction land M2 and construction land M3 are calculated based on the medium land classification categories; the planned construction land A1, construction land A2, construction land A4, construction land A5, construction land A6, construction land A7, construction land A8 and construction land A9 are calculated based on the medium land classification categories; the planned construction land A31, construction land A32, construction land A33, construction land A34 and construction land A35 are calculated based on the minor land classification categories; Among them, the land used for calculating electricity carbon emissions includes construction land R, construction land A, construction land B, construction land M, construction land W, construction land S, construction land U and construction land G; The land used for calculating heating carbon emissions includes construction land R, construction land A and construction land B; The land used for calculating gas carbon emissions includes construction land R, construction land A31, construction land A33, construction land A5 and construction land B.

4. The carbon emission estimation method for urban master planning construction land according to claim 3 is characterized in that: The statistical data required to estimate the carbon emissions of urban master plan construction land include: the current statistical data of the city statistical yearbook in recent years and the current statistical data of the China Electricity Statistical Yearbook; The current statistical data in the city statistical yearbook include the city’s current annual permanent population, natural gas household consumption, and annual natural gas sales volume; The current statistics from the China Electricity Statistical Yearbook include the thermal power generation and total power generation in the province where the city is located; The planning indicators for obtaining carbon emissions from construction land in the city master plan include construction land area, floor area ratio, and planned total population; The standard indicators for obtaining carbon emissions from urban master planning construction land include: 1) The standard indicators for calculating carbon emissions from electricity consumption include: load index per unit of construction land, simultaneous coefficient, classified comprehensive electricity consumption index, and average carbon dioxide emission factor of the regional power grid; 2) Standard indicators for calculating heating carbon emissions include: heating load per unit building area, heating hours, thermal emission factor, and thermalization coefficient; 3) Standard indicators for calculating carbon emissions from gas consumption include: per capita comprehensive gas consumption index, commercial gas consumption index, per capita educational land index, single construction land control index for comprehensive hospitals, public building gas consumption index, RZ low calorific value, CC unit calorific value carbon content, α carbon oxidation rate, and ρ is the ratio of the molecular weight of CO2 to carbon.

5. The carbon emission estimation method for urban master planning construction land according to claim 1 is characterized in that: The gas consumption of construction land R and construction land B is calculated based on the current status of urban gas consumption. The calculation methods of the gas consumption of construction land R and construction land B are shown in formula (5) and formula (6): Q B =Q R ×q-(Q A31 +Q A33 +Q A5 ) (6) The gas consumption of construction land A31, construction land A33 and construction land A5 is calculated according to the current status of urban gas consumption. The calculation methods of the gas consumption of construction land A31, construction land A33 and construction land A5 are shown in formula (7), formula (8) and formula (9): Q A5 =C×w(9) Among them, Q represents natural gas consumption; S represents construction land area; W represents the current gas consumption in the city; s represents the per capita indicator of educational land; C represents the single construction land control indicator of comprehensive hospitals; P represents the total planned urban population; ω represents the annual per capita comprehensive gas consumption indicator; w represents the gas consumption indicator of public buildings; and q represents the commercial gas consumption indicator.

6. An estimation system using the carbon emission estimation method for urban master planning construction land according to any one of claims 1 to 5, characterized in that: include: A module for determining the land use calculation scale and calculation system for carbon emissions, wherein the module is used to determine the energy type of carbon emissions from construction land in the city's overall planning; according to the urban construction planning system and the energy type of carbon emissions, the land use calculation scale and "energy use-construction land" calculation system for the estimated carbon emissions from construction land in the city's overall planning are determined respectively; A data acquisition module, which is used to obtain statistical data, planning indicators and regulatory indicators required for estimating carbon emissions from construction land in the city's overall planning; A carbon emission model establishment module, wherein the carbon emission model establishment module is used to establish a carbon emission model for construction land in the city master plan; A carbon emission estimation module is used to use the statistical data, planning indicators and normative indicators required for carbon emissions as input parameters of the urban master plan construction land carbon emission model to realize the estimation of the urban master plan construction land carbon emission model.

7. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, the steps of the method for estimating carbon emissions of construction land in a city master plan as described in any one of claims 1 to 5 are implemented.

8. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method for estimating carbon emissions of construction land in a city master plan as described in any one of claims 1 to 5 are implemented.

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