探讨了河流生态系统健康的概念和评价方法。
The concept and evaluation method of river ecosystem health were discussed.
水利工程是对于河流生态系统胁迫因子之一。
Hydraulic engineering is one of the stress factors to river ecosystem.
研究结果表明轮虫在河流生态系统中具有重要作用。
Results indicated that rotifers played an important role in river ecosystems.
首先，系统阐述了河流生态系统的组成、结构、特点和功能。
Firstly, this thesis introduced the components, structure, characteristics and functions of a river ecosystem.
从河流的连续性特征出发分析了大坝对于河流生态系统的胁迫问题。
The stresses of DAMS on river ecosystems are analyzed based on river continuity characteristics.
基于水文学和生态学原理，对河流生态系统健康的概念进行了界定。
Based on the theory of hydrology and ecology, the concept of river ecosystem health was defined and the influence factors were analyzed.
介绍了流域水利工程建设、农业生产及城市化对河流生态系统的影响。
The human being activities' impacts on the riverine ecosystem, mainly including water resource's project, agriculture and urbanization is reviewed.
另一个是支援河流生态系统，此将增加物种多样化，并确保提供给社会的服务。
Another is to support river ecosystems, which increases biodiversity and secures the services provided to societies.
在河流生态系统中，浮游藻类的生长繁殖与在水体中的滞留时间有着特殊重要的关系。
The growth and reproduction of phytoplankton are correlated with the remaining time in river ecosystem.
人类不合理的社会经济活动严重干扰了河流生态系统，河流健康问题引起广泛的重视。
Disturbance from irrational anthropogenic socioeconomic activity has influenced river ecosystem seriously and intensive attention has been paid on issues concerning river health.
就水电工程对河流生态系统的胁迫进行研究，并提出了减轻对河流生态系统胁迫的对策。
This paper presents the stresses of hydropower projects on the river ecosystem, and gives some countermeasures to mitigate the stresses on the river ecosystem when we construct hydropower projects.
研究表明，使河流生态系统服务功能得到正常发挥，是水坝建设决策中应考虑的必要因素。
It was suggested that keeping well-balanced river ecosystem service function would be one of the essential factors in dam-construction decision.
但含有除草剂的水不能再排向河流，而且我们知道低水位将会对习惯于高水位的河流生态系统造成危害。
But water containing the herbicide cannot be released back into the river and it is known that low water levels can harm river ecosystems accustomed to higher levels.
河流健康的概念既强调了保护河流生态系统的重要性，也承认人们适度开发水资源的合理性。
The concept of healthy rivers lays emphasis on the importance of protection of river ecosystem and also accepts the rationality of appropriate development of water resources.
构建香溪河大型底栖动物完整性因子（B-IBI），并对香溪河河流生态系统健康进行评价；
Based on the benthic index of the biological integrity (B-IBI), the the Xiangxi River system health was evaluated.
河流景观质量的下降及河流生态系统的退化已成为一个严重的环境问题，受到国际社会的普遍关注。
River landscape isn't attractive as usual, and the watershed ecosystem is deteriorating. These global environment problems have been widely concerning by the international society.
对于河滩洼地研究的逐渐展开，已使人们认识到河滩洼地在整个河流生态系统和河滩湿地生境中的重要意义。
Recently, accompanied with the evolution of research on wash, more and more scientists have realized the importance of wash in the river ecosystem and marsh ecosystem.
河岸带是河流生态系统与陆地生态系统进行物质、能量、信息交换的一个重要过渡带，具有明显的边缘效应。
Riparian zones are the important transitional regions for exchange of substance, energy, and information between river ecological system and land ecological system, and have obvious marginal effect.
将水坝对河流生态系统的影响因素划分为非生物要素和生物要素两大方面，并根据影响程度划分为三个等级；
Factors affected on dams were divided into two sections: abiotic factor and biotic factor, and the degree of effects was divided into three grades;
提出了以城市河流生态系统健康为最终目标的多目标整体修复思想，界定了河流生态系统修复活动须遵循的原则。
The integrative multi-object restoration, aiming at ecosystem health of urban river was proposed, and the principles for ecosystem restoration of urban rivers were given.
化肥和粪肥都释放氮到自然生态系统，如河流，从而破坏自然的平衡。
Both fertilizers and manure release nitrogen into natural systems such as rivers, upsetting the natural balance.
像河流和小溪那样的流水称为激流生态系统；像湖泊和池塘的死水称为静水生态系统。
Flowing waters like rivers and streams are called lotic ecosystems; standing water like lakes and ponds are lentic.
河流和它所支持的生态系统需要洪水。
河流系统是自然界最重要的生态系统之一。
The river system is one of the most important ecological system.
在国外，从通过某一生物来确定最小河流流量，到考虑生态系统可接受的流量变化，取得了一定的研究成果。
In foreign countries, achievements have been gained from the determination of the minimal flow rate of rivers with a special species to consideration of flow regimes accepted by ecosystems.
文章分析了蜚克图河流域工程建设、林草植被破坏、土壤侵蚀、水质污染、超负荷用水等使流域生态系统面临的威胁。
The paper analyses the stress faced by the ecological system of Feiketu river basin due to project construction, vegetation damage, soil erosion, water pollution and overburden water use.
这个区域的高度密集型产业与各种化学品的排放有关，可能会对河流和生态系统构成潜在污染。
The highly intensive industries in this region are associated with the emission of various chemicals that may pose a potential pollution to the river and the ecosystem.
清洁剂中含有磷酸盐，它进入河流湖泊中，会破坏生态系统，导致鱼类和其他生物的死亡。
Detergents contain phosphates which, when released into our lakes and rivers, damage the ecosystem and can kill fish and other organisms.
由于人类对河流水文状态的过度干扰，原有的自然水生态系统逐步退化。
Owing to the excessive disturbance of human being to river hydrological conditions, the intrinsic natural water-ecosystem has degraded gradually.
由于人类对河流水文状态的过度干扰，原有的自然水生态系统逐步退化。
Owing to the excessive disturbance of human being to river hydrological conditions, the intrinsic natural water-ecosystem has degraded gradually.
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