因而如何合理有效地利用土壤水资源就成为保证农作物和林草植被生理需水、改善生态环境的关键。
Therefore how to utilize soil water resource rationally and effectively become the keys to guarantee physiological water requirements of vegetation and improve eco-environment.
对生态环境需水进行了分类；
生态环境需水量是当前水资源管理等学科研究的重点和难点。
Study on the ecology water requirement is the emphasis and difficulty for current water resources management.
同时，对生态环境需水量理论进行研究，提出合理、实用的生态环境需水量计算方法。
At the same time, the theory about ecological environment water demands was studied and rational and practical methods on calculating the ecological environment water demands were put forward.
本文正是基于以上目的，研究长江流域内生态环境需水量及流域内水资源的承载能力。
This paper is just based on above purposes to study water resources carrying capacity and ecological environmental water requirements of Yangtze River basin.
对国内外生态环境需水量研究现状作了概述。
The current research status of ecological and environmental water requirement was summarized.
生态环境需水量的研究还处于起步阶段，对于其内涵尚无统一的界定。
The research on the ecological water requirement is still at the initial stage, and its connotation has not yet been nailed down.
借助频度统计、理论分析、专家咨询三种方法来筛选建立区域生态环境需水的评价指标体系；
Then the index system of eco-environmental water demand has been established by three different methods step by step.
田纳特法是目前广泛应用的生态环境需水量确定方法之一。
Tennant method is one of the method widely used on water demand of ecological environment.
计算结果表明：2005年湿地生态环境需水量较2000年有所减少。
The eco-environmental water requirement in 2005 was less than that in 2000.
依据长江下游生态环境特点提出并概算了长江下游干流河道内最小环境需水量。
The paper puts forward and calculates the lowest environmental water demand in river course of stem stream according to the features of ecosystem and environment of lower reach of Yangtze River.
文章探讨了维持生态系统平衡所需的水量，包括河湖水生生物生存的最小需水量；
The paper discusses the water demand volume for ecologic system equilibrium including the minimum water demand volume for water living things in lake and river;
对生态环境需水量的变化进行了对比分析，阐述了双台子河口湿地生态环境需水量变化的原因，为双台子河口湿地保护和水资源合理利用提供有利依据。
That change was explained by comparison and analysis of the data, which could provide a useful basis for conservation and reasonable water resources exploitation of the Shuangtaizi estuarine wetland.
因而如合理、有效地利用土壤水资源就成为保证植被生理需水、改善生态环境关键。
Therefore how to use of soil water reasonable and effectively becomes the key to insuring water vegetation needs and the improving the ecological environment.
西北地区生态环境需水研究是生态环境建设的重要基础。
Study on evaluation of eco-water demand in Northwest China is very important on eco-system building.
对汉江上游的生态环境需水量进行了初步探讨。
In this paper, the environmental water demand in the upstream of Hanjiang River is studied.
必须合理预留生态环境需水，以实现水资源的科学配置和有效管理，维持生态平衡。
The environmental water demand is considered for scientific disposition and management and ecologic equilibrium.
近年来，生产、生活需水量不断增长，而水污染、用水浪费与水资源短缺并存，加剧了供需水矛盾，亦导致了一系列的社会经济、生态环境问题。
As water pollution and water waste exist with water short, a serious conflict of water supply and demand arise, accompanied with a series of water ecological problem.
近年来，生产、生活需水量不断增长，而水污染、用水浪费与水资源短缺并存，加剧了供需水矛盾，亦导致了一系列的社会经济、生态环境问题。
As water pollution and water waste exist with water short, a serious conflict of water supply and demand arise, accompanied with a series of water ecological problem.
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