Crop Water Requirement of Cotton Drip Irrigation under Membrane Based on CWSI and Actual Crop Water Depletion

基于 CWSI和实际 耗 水量的膜下滴灌作物需水量研究

With the rapid development of the economy it have brought manifold negative impact to our environment such as land desertification crisis of water resources acid rain pollution ozone depletion and so on . The environmental quality is declining year by year .

随着经济迅猛的发展，又给环境带来了许多不良的影响如土地荒漠化， 酸雨污染，臭氧层的 破坏等，环境质量逐年下降。

In the twentieth century secondary recovery technology for the formation pressure maintenance by injecting water developed greatly after the primary depletion technique .

继利用 天然 能量进行 油田开发的一次 采油之后，在20世纪以 注水保持油田能量为主的二次采油得到了很大的发展。

Using an index of depletion coefficient of soil water the dynamic processes of soil water at 15 plots in rainy season is analysed and the empirical equations with depletion coefficient are derived .

本文采用土壤含水量消退系数指标，对15个观测点的雨季土壤 水分动态过程进行了计算分析，得出了 消退系数的经验方程。

More and more people start to care about the environment problems e.g. soil erosion vegetation degeneration water resource depletion and pollution energy crisis health problem etc.

土地退化、植被破坏、 水资源 消耗和污染、能源危机、健康问题等受到了人们越来越多的关注。

Increased consumption of water has led to rapid depletion of groundwater reserves .

用 水量的增加导致了地下水贮备迅速 枯竭。

Once the environment of towns and its surrounding was destructed soil erosion soil hardens water depletion would be appear which can cause provision of food water raw materials for towns to be reduced and limit the urbanization .

一旦城镇周边区域环境遭到破坏，水土流失、土壤板结， 水源 枯竭，则给城镇提供的食物、水源、原材料等就会减少，从而限制城镇化。

The influences of porous media and irreducible water on condensate oil saturation are not negligible in natural depletion .

在 衰竭 开发中，多孔介质、束缚 水对凝析油饱和度的影响不容忽视。

The article establishes the regression equation about the soybean quality and water depletion quantity by using statistics of water depletion quantity value and main quality index of soybean in different treatment .

本文利用不同处理的耗水量值和大豆主要品质指标，建立起大豆品质和 耗 水量的回归方程。

The treatment and reuse of sewage establish the second water source and reduce the fresh water needed by the city and releases the contradiction of supply and demand . It is a important way to save water for city and has important significance to water depletion city .

污水处理回用开辟了第二水源，减少了城市新鲜水的取用量，缓解了供需矛盾，是城市节水的重要途径之一，对 缺水城市意义重大。

Also volatile organic compounds play a role via water vapor in the ozone chemistry of the atmosphere thus contributing indirectly to the depletion of the ozone layer .

而若以 水蒸气为介质，挥发性有机混合物也会在大气的臭氧化学过程中发挥作用，从而间接 破坏臭氧层。

Water use efficiency ( WUE ) is an important index describing the relationship between plant yield and the depletion amount of water . Also is an ecosystem index evaluating suitable level of plant growth .

水分利用效率（WUE）是用以描述植物产量与 消耗水量之间关系的一个重要指标，是评价植物生长适宜程度的综合生理生态指标。

The Influences of Irreducible Water and Depletion Rate on Critical Flow Saturation of Gas Condensate

束缚 水 和 衰竭速度对凝析油临界流动饱和度的影响

Because of regional national autonomy in the fragile ecological environment severe water crisis the depletion of land resources in a crisis and many other issues environmental protection mechanisms for the construction of the Government has set higher goals and requirements .

民族区域自治地方严重的草原退化和 水 资源危机、 枯竭的土地资源危机等诸多问题，对政府生态环境保护机制建设提出了更高的目标和要求。

The CWSI of different water treatment cotton was observed periodically and the relationship between CWSI and crop water depletion was established .

对不同水分处理棉花的CWSI进行了定期观测，得到了棉花CWSI与棉花 耗 水量的关系。

The self-developed ultrasonic wave test system is used to make five tests on gas condensate critical flow saturation in this paper including two groups of contrast experiments considering the irreducible water influence and a group of contrast experiment considering depletion rate influence .

利用自行建立的超声波测试系统进行了5次凝析油临界流动饱和度测试，包括两组考虑束缚 水影响的对比实验和一组考虑 衰竭速度影响的对比实验。

Changes of catalase activity were closely relevant with soil available water . Catalase activity was higher in the treatment of lower maximum allowable depletion .

过氧化氢酶活性的变化与灌水和土壤 水分状态密切相关， 灌水控制下限较低时，灌水处理后各土层过氧化氢酶活性较高，频繁少量的灌水能促进各土层过氧化氢酶活性的 不断提高。

The results showed that there was a significant difference in the soil water storage among different months and the dynamics of soil water could be described as the phases of accumulation depletion and stabilization .

结果表明：不同月份间土壤蓄水量差异达极显著水平，研究时段内土壤 水分动态变化可划分为土壤 水分积累期、 土壤 水分 消耗期和土壤 水分稳定期3个时期；

Because of overdrawing coal it causes many environment geological problems especially water environmental issue which mainly show underground water level drawdown surface water runoff decrease underground water depletion watr quality deterioration and hydro-geological condition change and so on .

由于煤炭的大量开采引发许多环境地质问题，特别水环境问题比较突出，主要表现为地下水位下降、地表径流减少、 地下水 枯竭、水质恶化及水文地质条件改变等。

Salt and water depletion due to inability to conserve sodium in the TALH or DCT leads to activation of the RAAS and high aldosterone levels .

由于TALH或DCT不能保钠，因而会出现盐和 水 的 丢失，继而会激活RAAS，使醛固酮水平升高。

Put another way Rodell says the amount of underground water depletion is about double the capacity of India 's largest reservoir .

换言之，罗德尔说， 地下水 的 消耗总量，相当于印度最大水库库容量的两倍。

It is not only about the carbon emissions but also of water and air pollution from various different chemicals ; resource depletion including fresh water and so on .

除了二氧化碳排放量的问题，由化学物质引起的 水污染和空气污染，以及淡水等资源 枯竭都是中国正在 面临的环境问题。

Because of limiting discharge of water and lining wall rock groundwater system recovers . It is also to ensure the construction and reasonable to restore the ecological environment and to effectively curb the depletion of water resources .

由于隧道采取了限制排放 地下水及对围岩进行衬砌，较好地恢复了地下水系统，既保证了工程建设，又合理地恢复了生态环境，有效遏制了水资源的 枯竭。

Recently with the further development of the energy and chemical base more and more serious consequences have been caused such as ground water levels fall rivers depletion soil desertification and soil erosion so on .

加之近年来能源化工基地建设力度的加大，导致地下 水位下降、河流 枯竭、土壤沙化、水土流失等现象越来越严重。

For fractured carbonatite reservoirs it is cautious to waterflood development especially for fracture reserve with gas-cap and bottom water . Generally after depletion drive and waterflood development the finally recovery rate of base oil is less than 40 % .

对裂缝十分发育的碳酸盐油藏，一般对注水开发非常谨慎，特别对既有气顶、又有 底水的裂缝型油田，尤其如此。

Lowering the Water Level in foundation pits and well points is effectively used to reduce underground water table to make a depletion of groundwater in working area and more better to overcome many difficulties in practical foundation pit digging and foundation construction .

基坑井点降水的应用，有效地降低了地下 水位， 疏干了场区内地下水，较好地解决了深基坑开挖和基础施工中的具体困难。