40 results about "Water resource planning" patented technology

A managing and planning system of water resource information comprises GIS, CPU, I/O. storage and its water resource comprehensive management and plan device including unit for setting up lead in /storage /update, unit for generating basic data drawing, unit for generating special subject data drawing storage of water resource, analysis / calculation /evolution unit, image virtualized description unit and file management / query / call / output unit.

The present invention discloses a crop irrigation water requirement calculation method on future climatic conditions. The method comprises the steps of collecting the future climatic mode data, and correcting the future climatic mode data based on the historical actually measured meteorological data to enable the future climatic mode data to be suitable for the climatic change influence evaluation of a region or station scale; according to the growth period data of a crop field test and an accumulated temperature formula, constructing a response model of the crop planting date and the crop growth period length to the temperature; utilizing a penman formula to combine a single crop coefficient method and a soil moisture stress coefficient to calculate the crop daily water requirement; based on a crop irrigation system and a water balance principle to calculate the crop daily irrigation water requirement. Aiming at the influence of the climatic change on the agricultural water resource security, the method of the present invention considers the change of the crop planting date and the growth period caused by the global warming, so that a water resource planning management department can forecast the regional future agricultural water resource utilization amount more accurately, and accordingly, a water resource planning scheme is proposed more reasonably.

The invention discloses a method for performing remote-sensing monitoring on soil moisture content. The method comprises the following steps of: S1, analyzing the spectral characteristic of soil moisture in a short wave infrared band, and selecting the short wave infrared band which is used for monitoring the soil moisture; S2, constructing a short wave infrared drought index based on remote sensing date according to the selected short wave infrared band; S3, acquiring the observation data of the soil moisture in an area to be monitored; and S4,establishing an area relationship model of the drought index and the soil moisture according to the drought index and the observation data of the soil moisture, and determining the soil moisture and the drought condition of the area to be monitored. By the method, the soil moisture/drought condition of the area can be estimated quickly and effectively so as to guide the agricultural production, water resources planning and the like, and the accuracy is high.

The invention relates to a novel distributed Hebei model construction method and application thereof. The novel distributed Hebei model construction method comprises the following steps that firstly, drainage basin generalization is carried out; secondly, grids serve as study units, a Hebei model is used for establishing a grid runoff producing module; thirdly, a lag-and-route method and a Muskingum method are used for establishing grid-by-grid distributed confluence modules. The mature Hebei model is used for conducting grid runoff producing calculation, then, grid-by-grid confluence calculation is carried out, the situation that the space distribution of factors such as an underlying surface is uneven is fully considered in the model, the model can be coupled with an atmospheric mode, the forecast accuracy of storm flood is improved, the meeting period is prolonged, and the novel distributed Hebei model construction method has important significance for storm flood forecasting, a drainage basin water circulation mechanism, water resource planning, unified water resource management scheduling in the northern semiarid and semihumid regions in China.

The invention relates to a long-sequence farmland irrigation quota measuring and calculating method which comprises the following steps: establishing a basic parameter database, and inputting farmlandbasic parameters into the database; Compiling a measuring and calculating program; Respectively calculating irrigation quotas of the dry crops and the rice; Further calculating a long-sequence comprehensive irrigation net quota according to the designed multiple cropping index on the basis of single crop irrigation quota calculation; And calculating the long-sequence farmland irrigation gross quota of each calculation partition according to the utilization coefficient of the irrigation water of each region. The long-sequence farmland irrigation quota measurement and calculation method can well overcome the problems of insufficient precision of irrigation quota and standard water quota in typical years, and can greatly improve the accuracy of agricultural water demand prediction results inwater resource planning, water resource development and utilization engineering scale demonstration, water resource demonstration report compilation and the like.

The invention discloses a drainage basin wetness-dryness prediction method and system based on climatic factors. The method comprises the following steps that: establishing a teleconnection model of multiple pieces of climatic factor data of a drainage basin water-vapor flux and a drainage basin air temperature teleconnection model; establishing a related model of the drainage basin water-vapor flux, air temperature and drainage basin evaporation and precipitation; combining a drainage basin water-vapor flux teleconnection model with a drainage basin air temperature teleconnection model, and predicting to obtain the drainage basin water-vapor flux and the drainage basin air temperature; and according to the drainage basin water-vapor flux and the drainage basin air temperature, combining the drainage basin evaporation and precipitation related model, combining drainage basin landform with underlaying surface information to predict a drainage basin wetness-dryness situation according to drainage basin evaporation and precipitation. By use of the method, time prediction accuracy can be effectively improved, runoff volume prediction accuracy is effectively improved so as to improve the accuracy of a long-term wetness-dryness situation in the drainage basin, and reasonable and effective water resource planning and utilization can be realized.

The invention provides a reservoir scheduling rule optimization method based on machine learning fused with multi-source remote sensing data; the method comprises the steps: collecting short-series runoff observation data of a reservoir, and extracting a rainfall series, meteorological data and a land water reserve series of a drainage basin where the reservoir is located; according to the short-series runoff observation data and the meteorological data, establishing a hydrological model of a basin where the reservoir is located, and preliminarily simulating runoff; constructing a long-term and short-term memory neural network model and correcting the simulated runoff by adopting the long-term and short-term memory neural network model to obtain a corrected simulated runoff series; inputting the acquired long-series meteorological data into a hydrological model and the corrected simulated runoff system, and simulating a long-series reservoir inflow runoff process of the reservoir; and constructing a multi-objective optimization scheduling model according to the obtained reservoir long-series reservoir inflow runoff, and solving an optimized scheduling rule by adopting a genetic algorithm. According to the invention, multi-source remote sensing data is fused for simulating a long-series runoff process, and a reference basis is provided for reservoir scheduling and water resource planning.

The invention relates to the field of water resource planning and management, in particular to a regional water supply amount estimation method considering multi-water-source joint probability distribution. The method comprises the following steps: analyzing a plurality of water supply sources in a set area to obtain runoff data; respectively calculating a correlation coefficient between every two water supply sources, and judging the correlation of the water supply source runoff series; aiming at the water supply sources with relatively strong correlation, utilizing a Copula function to obtain a joint probability distribution function, and carrying out hydrological plump and heave situation analysis on the plurality of water supply sources to obtain runoff volumes of the plurality of water supply sources under different plump and heave situations; for a water supply source with relatively weak correlation, drawing an annual runoff frequency curve based on a P-III type curve to obtain runoff under different hydrological guarantee rates; and determining the water supply amount of the upstream reservoir in the high, middle and low precipitation years by combining the water storage requirement of the reservoir and the ecological base flow requirement of the river. According to the method, the uncertainty of water supply change caused by runoff change is considered, and a quantitative basis is provided for optimal allocation of regional water resources.

The invention discloses a method for performing quantitative partition by utilizing per-capita water resource index number. The method comprises the following steps: conducting investigation and reconnaissance to water resource information in a target region, analyzing water resource current situation of the target region, obtaining the per-capita water resource index number according to the population carrying and the water resource current situation of the target region and accordingly finishing the quantitative partition of the target region. By means of the method for performing the quantitative partition by utilizing the per-capita water resource index number, water resource bearing is converted into the per-capita water resource index number, the urban and rural ecological planning is directly related with the per-capita water resource index number to provide theoretical guidance for urban and rural planning. Regional water resources are reasonably optimized and configured, and the orientation is provided for urban and rural development scale and development direction.

The invention discloses a multi-dimensional dynamic collaborative safety degree evaluation method for a regional water and soil resource coupling system, and aims to evaluate the safety degree of regional water and soil resources. According to the method, the quantity and quality of regional water and soil resources are considered at the same time, the water and soil resource coupling system can be evaluated from four dimensions of agriculture, industry, life and ecology. According to an interaction relationship between the water and soil resource coupling system and regional economic and social development, a system safety degree evaluation result of the water and soil resource coupling system can be obtained according to local conditions. The method not only can be used for evaluating the historical evolution process of the water and soil resource coupling system, but also can be used for predicting the collaborative safety degree of the future water and soil resource system in combination with water resource planning and land resource planning, so that multi-dimensional dynamic evaluation of the water and soil resource coupling system is realized, and guarantee is provided for collaborative safety of the regional water and soil resource coupling system.

The invention discloses a regional water resource supply and demand situation prediction and dynamic regulation and control method, and relates to the technical field of water resource planning and management. The method comprises the steps of: S1, carrying out unified collection of water resource environment information outside a region, analyzing the economic development, population growth and environment change trends in the internal and external environments of the region, and acquiring analysis information data; S2, fully considering the information acquisition data and computer room software and hardware facilities existing in S1, and performing construction and application according to a resource sharing principle. The method has the beneficial effects that a database center is arranged, so that subsequent normal information conversion and comparison are ensured, the accuracy of a worker during prediction is improved, and normal dynamic regulation and control are ensured; and the whole process of information unified collection, comprehensive information integration, data integration and transmission, database center construction, numerical analysis and comparison for predictive regulation and deployment is set, and the requirements of people for normal life are met, so that water resources are reasonably utilized, and sustainable development of regional economy and society is guaranteed.

The invention discloses a small sample water demand prediction method, which comprises the following steps: evaluating historical data; performing adaptive grey modeling of the evaluated data; forecasting future water demand by adaptive grey model; outputting prediction results. The invention provides an effective way for the application of water resources management, large-scale water resources planning and the like in areas with low information management level by modeling and forecasting the water demand under the condition of small samples.

The invention discloses a method for comprehensively evaluating the influence of climate change on river runoff. The method comprises the following steps: acquiring climate parameters and spatial and temporal change characteristics of the river runoff; analyzing and inspecting the change trend of the climate parameters and the river runoff by adopting an MK trend inspection method based on improved over-whitening, and determining mutation points of the climate parameters and the river runoff; dividing a period before the mutation point into a natural period, and dividing a period after the mutation point into an influence period; based on an SWAT model and an elastic coefficient method, calculating annual average runoff variation caused by climate change in the influence period; and calculating the influence of the climate change on the runoff change according to the annual average runoff change quantity caused by the climate change. According to the method, the multivariate attribution analysis of the climate change on the river runoff change is more objective and accurate, and the method has important practical significance in the aspects of basin water resource evolution analysis and identification, water resource planning management, disaster prevention and reduction, water safety and the like in a changing environment.

The invention discloses a water resource allocation method for a multi-water-source multi-user water supply network, and relates to the field of water resource planning. The method comprises the following steps of firstly, determining a water supply and use logical relationship between the water sources and the water users, secondly, determining a water supply priority sequence of each water source to different water users, determining a demand priority sequence of each water user to different water sources, establishing a supply and demand algorithm between the water sources and the water users, and carrying out water resource allocation work according to a water source scheduling principle. According to the method, the actual water supply relation in the multi-water-source multi-user water supply network can be effectively simulated, and the water resource allocation can be more scientifically carried out.