塞文河口是鸟类的栖息地，而大型水坝会在很大程度上破坏或毁坏河口，这同样也会破坏河流中鱼群的生态环境。
The Severn estuary is an important habitat for birds; large barrages would destroy or damage much of it, as well as interfere with fish stocks in the river.
可以举出很多很多的例子说明自然生态环境已经被迅速地改变了，亚马逊河流域就是最好的例证。
A number of examples can be given of the way in which natural environments are being rapidly changed - Amazonia, for instance.
本文以半湿润地区大汶河流域为例，研究提出水污染控制方案和水生态环境恢复的措施。
This research, regards Dawen river in semi-humid region as example, has put forward water pollution control projects and aquatic ecological environment restoration measurements.
塔里木河流域深居内陆，气候干旱、降水稀少、蒸发强烈、水资源匮乏，生态环境极其脆弱。
Tarim river basin situated the inland with dry climate, scarce precipitation, intensive evaporation, water shortage, and extremely fragile. ecological environment.
这对探求渭河流域生态环境的综合治理，合理利用水资源有着非常重要的意义。
It was very important significance for comprehensive improvement ecosystem environment in Weihe Basin and rational utilization of water resources.
杂食性的水虎在这些河流的生态环境中扮演的非常关键的角色，它们在扮演昆虫、鱼的猎食者的同时也被河豚、鳄鱼和其他大型鱼类所猎食。
They are omnivorous and play a key part in the ecology of these rivers eating fish plants and insects but also acting as prey for dolphins, caiman and larger fish.
目前，河流退化已被公认为一个全球性的生态环境问题，受到国际社会的普遍关注。
At present, river deterioration has been already accepted as a global environment problem and been widely concerned by the international society.
通过分析海河流域地下水开采与环境变化的关系，揭示了由于海河流域地下水过量开采而引发的生态环境问题。
By analyzing the relation between the underground water and environment, this paper raises the over exploitation cause the ecological and environment problem in the Haihe River Valley.
结果表明，金矿开发已造成了卧龙泉河流域土壤生态环境的重金属复合污染，污染程度随开发强度的加大而增高。
The results indicated that gold mine has bring heavy metal pollution of soil and that level of heavy metals increased with intensity of mine in Wolongquan River area.
和田河流域脆弱生态环境是水、植被环境恶化导致的生态平衡失调形成的。
Both water and vegetation environment worsening caused ecological imbalance, which caused the fragile ecological environment in Hotan river basin.
水土流失是海河流域较为突出的生态环境问题之一。
Water and soil erosion is one of the prominent ecological environment problems of Haihe River Basin.
基于黄河流域面临的三大水资源问题，提出了三种调控手段，水资源短缺的调控、水灾害调控以及生态环境的调控。
Based on three water resources problem of the Yellow River basin, put forward such three adjustment means as the lack of water resources, water disaster and environment adjustment.
介绍了生态环境地质调查的思路、特点、内容和技术方法，以及在安宁河流域调查中的实际应用。
This paper deals with thinking, characteristics, content, technology and methodology for ecologic environmental geological survey and their application to the survey in the Anning River basi.
简述江西省抚河流域的概况、水生态环境的现状及存在的问题。
This article discussed the general situation, the present status of aquatic ecological environment and existent problems of Fuhe river basin in Jiangxi province.
目前，汾河流域的生态环境建设面临巨大压力和挑战，这在城市建设中表现得尤为集中和典型。
At present, the Fenhe River Basin construction of the ecological environment faced with tremendous pressure and challenges.
土地荒漠化是西北内陆河流域主要生态环境问题。
Land desertification is the main ecological problem of northwest inland basin.
利用修正后的“流域水资源承载力平衡指数(IWSD)”方法，研究了海河流域1960 - 2030年水生态环境状况的变迁过程。
Using a modified method of Index of water Supply and Demand (IWSD), this paper studies the transitional track of water ecosystem in the Hai River Basin from1960to2030.
有利于提高渭河中下游生态环境质量及渭河流域的综合治理。
Which is helpful to enhance the ecological environment and to harness the Wei River basin.
石羊河流域生态环境存在着严重的问题，主要是由于人口对生态环境的压力过大、水资源利用不当等因素引起的；
The problems of eco-environment of Shiyang valley are serious. The main factors of them are high pressure of population to environment and irrational utilization of water resources and so on.
本文通过对乌伦古河流域的实地考察发现，乌伦古河生态环境的恶化与牧民定居政策有着直接联系。
Through field researches in the Ulungur River Valley, this author found that the deterioration of the ecological environment of the Ulungur River is directly linked to the settlement policy.
黄河流域生态环境的恢复和保持良性循环已成为黄河水利委员会当前乃至将来一个极其重要的工作目标。
Returning to normal eco-environment and retaining sound cycle in Yellow River catchment are very important target at present and in future.
同时还对汤旺河流域的生态环境进行了分析和评价，将整个流域划分为不同的生态区域。
According to the analysis and assessment of the ecological environment of Tangwanghe Catchment, the ecotopes were classified.
并就如何保护黑河流域生态环境提出了建议。
Some suggestions about protecting ecological environment of Heihe field were given as well.
同时，建议加强阿克苏河流域水资源的设施建设和治理，改善流域生态环境。
This paper may suggest related governments to construct the infrastructures to economize water resource and improve the environment in the Aksu Drainage Basin.
运用条件估值方法研究了黑河流域居民对恢复额济纳旗生态环境的支付意愿。
The contingent valuation method (CVM) is used to analyze the willingness of the residents in Heihe reaches to pay for the restoration of Ejina's ecosystem.
运用条件估值方法研究了黑河流域居民对恢复额济纳旗生态环境的支付意愿。
The contingent valuation method (CVM) is used to analyze the willingness of the residents in Heihe reaches to pay for the restoration of Ejina's ecosystem.
应用推荐