Flood prevention and control service demand drawing method based on ecological system service flow
An ecosystem and service flow technology, applied in structured data retrieval, resources, instruments, etc., can solve problems at the conceptual level, method and technical bottlenecks, etc.
Pending Publication Date: 2022-02-11
TONGJI UNIV
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Problems solved by technology
However, there is still a lack of research methods for the visualization and visualization of service flow, and most of the existing mapping of service flow and description of service flow mechanism usually stay at the conceptual level
Therefore, if we want to use service flow to establish the service supply and demand relationship between the separated built space and natural space, there is still a bottleneck in the method and technology
Method used
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Embodiment 1
[0039] Such as figure 1 As shown, it is a flood prevention and control service demand mapping method based on ecosystem service flow provided by this embodiment. The method solves the technical path of ecosystem service flow transmission and distribution of flood prevention and control service demand by using four characteristic indicators. Coupling and decomposition, so that the service demand from the construction space is projected into the corresponding natural space in a spatially explicit way, so as to identify the response of the existing natural space system to the flood prevention and control service demand in terms of total quantity and distribution, and based on Each service flow characteristic index regulates high service demand, which is characterized in that it includes the following steps:
[0040] 1) Generate total flow: evaluate the demand for flood prevention and control services in the construction space in the built-up area, take the construction space area...
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The invention provides a method for distributing flood prevention and control service requirements from a built-up area to a surrounding natural space separated therefrom and drawing, which comprises the following steps of: describing an ecological system service flow (called service flow for short) by using four characteristic indexes, namely total flow, flow range, flow destination and distribution mode of set distance; and representing four key links of a technical path of distributing flood prevention and control service requirements from the built-up area to a natural space process so that spatial characteristics of projecting flood prevention requirements of a human society to a natural space system are intuitively reflected, and four characteristic indexes of a service flow are taken as effective ways for regulating and controlling high service requirements. The method provided by the invention is mainly realized through ArcGIS software, and a scientific, clear and repeatable method framework can be provided for monitoring high-demand areas sensitive to flood in rapid urbanization areas and identifying natural spaces needing to be recovered and protected due to high flood control demand pressure.
Description
technical field [0001] The invention belongs to the technical fields of natural resource management, ecological network planning, land space planning and ecological restoration, and in particular relates to a flood prevention and control service demand mapping method based on service flow. Background technique [0002] Urbanization has put tremendous pressure on ecosystem services, and the growing built-up area is spreading outward and eroding the natural space inside the city. Especially in densely populated built-up areas, the ecosystem service supply capacity of blue-green infrastructure is negligible compared with the natural space around the city. This has resulted in a spatial mismatch between urbanized areas where human needs are concentrated, and natural spaces / ecosystems located outside built-up areas that provide most ecosystem services. That is to say, at the regional scale, the supply and demand spaces of ecosystem services are separated. In addition, due to th...
Claims
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IPC IPC(8): G06Q10/06G06Q50/26G06F30/20G06F16/29
CPCG06Q10/06393G06Q50/26G06F30/20G06F16/29Y02A10/40
Inventor 王云才申佳可
Owner TONGJI UNIV