A water resource management method based on supply-oriented hydrological ecosystem services

Abstract

The invention relates to a water resource management method for a watershed based on a supply-type hydrological ecological system service, which includes analyzing the basic information collected by a mechanistic watershed hydrological model to obtain the total water production, and using it as a supply-type hydrological ecological system service, Obtain the spatial distribution layer of supply-type hydro-ecological system services; use the market value method to quantify the economic value of supply-type hydro-ecosystem services to obtain the spatial distribution layer of its economic value; use the spatial ecological planning model to simulate the watershed water level based on the two spatial distribution layers Division of resource protection and potential development areas. The present invention uses a mechanistic watershed hydrological model to analyze the influence and relative importance of land use change, soil properties, climate, topography, etc. on the temporal and spatial distribution of water production, and combines the spatial ecological planning model to identify water resource areas that need key protection and potential development The comprehensiveness and effectiveness of water resources protection have been enhanced.

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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