Watershed water resource management method based on supply type hydrological ecosystem service

Abstract

The invention relates to a watershed water resource management method based on supply type hydrological ecosystem service, which comprises the following steps: analyzing basic information acquired bysimulating a mechanical watershed hydrological model to obtain a total water yield, and taking the total water yield as the supply type hydrological ecosystem service to obtain a supply type hydrological ecosystem service spatial distribution diagram layer; quantifying the economic value of the supply type hydroecological system service by adopting a market value method to obtain an economic valuespatial distribution diagram layer; and simulating watershed water resource protection and division of a potential development area according to the two spatial distribution map layers by adopting aspatial ecological planning model. According to the invention, the influence and relative importance of land utilization change, soil properties, climate, terrain and the like on space-time distribution of water yield are analyzed by utilizing a mechanical basin hydrological model, and a water resource area needing to be protected emphatically and a water resource area potentially developed are identified by combining a space ecological planning model, so that the comprehensiveness and effectiveness of water resource protection are improved.

Description

technical field [0001] The invention relates to the technical field of water resource management and planning, in particular to a water resource management method for a watershed based on supply-type hydrological ecosystem services. Background technique [0002] Water is an essential precious natural resource for human survival and production activities. In recent years, with the increase of population and rapid economic development, the contradiction between supply and demand of water resources has become increasingly serious. my country's per capita water resources are small and unevenly distributed in time and space. It is a typical structural water-scarce country. Taking water resources in river basins as a key element in the protection planning of natural ecological resources (supply-type hydrological ecosystem services) has become a key element in the protection planning of relevant government agencies and academic institutions in my country. general consensus in the w...

AI Technical Summary

Problems solved by technology

Traditional methods of water resources management in river basins mostly estimate the change of water yield in the basin from simple precipitation and evapotranspiration data or simple hydrological models, and use multivariate statistical methods to conduct cluster analysis on water resource protection areas. The former fails to consider the process of hydrological cycle, while the latter Failed to construct a taxonomy of priority areas for water conservation

In addition, the calculation unit used in the previous hydrological model simulation and the calculation unit used in water resources management and planning are not consistent, and the effective coupling of the two models has not been achieved.

[0004] At present, water resource management in my country's river basins is mainly based on quantifying the impact of land use change and climate change on the water volume in the river basin. The existing water resource management methods cannot consider the socio-economic value of water resources and water resource management and protection in the actual application process. The optimization of district space layout

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