Method for quantitatively distinguishing contributions of different factors in water circulation evolution process

Abstract

The invention discloses a method for quantitatively distinguishing contributions of different factors in a water circulation evolution process, which belongs to the technical field of water circulation analysis and comprises the following steps of: establishing a target metering area which is internally divided into a natural hydrological circulation area and an artificial water circulation area,meanwhile, distributing small areas with various different factors in the natural hydrological circulation area and the artificial water circulation area; establishing an ecological simulation area between the metering area and the water vapor receiving area; marking and tracking water vapor in the target metering area; establishing a water vapor receiving area; and carrying out metering statistics of various marked water vapors in the water vapor receiving area; according to the method, precipitation, evapotranspiration and water vapor conveying of three main variables of water circulation are organically associated, water vapor mark tracking is adopted, all sources of water vapor are accurately counted, and contribution of different factors in the water circulation is accurately quantified.

Description

technical field [0001] The invention belongs to the technical field of water cycle analysis, in particular to a method for quantitatively distinguishing the contribution of different factors in the evolution process of water cycle. Background technique [0002] Water is the source of life, the key to production, and the foundation of ecology. As a renewable resource, the amount of water resources is very limited and depends largely on the water cycle system. Due to the continuous enhancement of human activities such as the development and utilization of water resources and the construction of water conservancy projects, the water cycle process in the basin has gradually changed from the original "natural" model to the "natural-artificial" dual coupling model. The natural water cycle process consists of precipitation, vegetation canopy and depression interception, evapotranspiration, infiltration, surface runoff, soil runoff, underground runoff, and river confluence, etc., an...

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Problems solved by technology

[0006] There is no unified and mature method in China. The current sub-item survey method and hydrological model method mainly use statistics, reduction and correction as the basic means, which can no longer meet the evolution process of water cycle in the basin under the dual driving force of modern "natural-artificial". Human Activity Effects Research in

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