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Analyzing technique for urban ecological demand water

A technology of ecological water demand and analysis technology, applied in water conservancy projects, open-air water source surveys, water conservancy engineering equipment, etc., can solve the problems that urban ecological water demand is difficult to be effectively protected, achieve convenient and practical technical methods, and avoid urban ecological environment protection work, the effect of solving quantitative problems

Inactive Publication Date: 2010-02-17
BEIJING NORMAL UNIVERSITY
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Problems solved by technology

[0005] Aiming at the lack of quantitative analysis technology for urban ecological water demand at present, which makes it difficult to effectively protect urban ecological water demand, the present invention proposes a calculation method for ecological water demand that comprehensively considers the requirements of urban green spaces and urban rivers and lakes, and an urban ecological demand for water resource allocation. Water analysis technology clarifies the classification standard of urban ecological water demand and effectively solves the quantitative problem of urban ecological water demand

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  • Analyzing technique for urban ecological demand water
  • Analyzing technique for urban ecological demand water
  • Analyzing technique for urban ecological demand water

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Embodiment approach

[0011] (1) Urban ecological water demand classification system and calculation indicators

[0012] Based on the two levels of ecosystem type and ecological environment function, water demand types are divided, and the calculation indicators of different water demand types are determined according to the ecological environment functions supported by different water demand types (see Table 1).

[0013] Table 1 Urban ecological water demand types and calculation indicators

[0014]

[0015] (2) Calculation method of urban ecological water demand

[0016] Establish a calculation method for urban ecological water demand, the calculation formula is as follows:

[0017] wxya U (t) / dt=W G (t)+W RL (t) (1)

[0018] in,

[0019] wxya G (t) / dt=W P (t)+W S (t) (2)

[0020] wxya RL (t) / dt=W RB (t)+W LB (t)+W WE (t)+W WS (t)+W LE (t)+W JG (t) (3)

[0021] In the formula, W U (t) is the urban ecological water demand in t period; W G (t) is the ecological water demand o...

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Abstract

The invention provides an analyzing technique for urban ecological demand water. An urban ecological system is divided into an urban greenbelt and an urban ecological system of rivers and lakes; ecological demand water is correspondingly divided into plant demand water, soil demand water, riverway demand water, lake existing demand water, water surface evaporation demand water, leakage demand water, lake exchange demand water and sight recreational demand water. The invention discloses a computing method of the ecological demand water, which comprehensively considers the requirements of the urban greenbelt and urban rivers and lakes, and a computing method of the ecological demand water, which is oriented to the configuration of urban water resources; the invention also defines the grade ranging standard of the urban ecological demand water and effectively solves the quantitive problem of the urban ecological demand water.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to an analysis technology of urban ecological water demand, which solves the problem of urban ecological water demand calculation under the condition of significant influence of human factors. Background technique [0002] More than half of the world's population lives in cities. In the process of rapid urbanization, human activities are increasingly threatening urban ecosystems. In particular, the rapid growth of the national economy requires water resources at the cost of occupying agricultural and ecological environment water, resulting in river Serious urban ecological environmental problems such as lake shrinkage, vegetation degradation, and groundwater funnels are gradually emerging. Urban ecological water demand is defined as the amount of water required for urban ecosystems to perform normal ecological and environmental functions. Because urban ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00G01C13/00E02B1/00
Inventor 杨志峰崔保山尹民孙涛
Owner BEIJING NORMAL UNIVERSITY
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