查询词典 ecosystem

Loess Plateau is locate in areas transited from semi-arid and semi-humid areas to arid hungriness area, Because of the influence of war and long-term\'s unreasonable utilization, the ecological environment in this region is poor and serious soil and water loss is heavy. The water and soil conservation ecosystem project of emphasis tributary is implemented by Yellow River Committee from 2000, during several years centralized treatment,Project Construction have got remarkable effect.

黄土高原地处我国从半湿润半干旱带向干旱荒漠带过渡的地区，由于受历史上战乱和人为不合理开发利用的影响，生态环境比较脆弱，经济发展滞后，水土流失严重。2000年以来，黄委会启动实施了以黄河多沙粗沙区为治理重点的黄河水土保持坡面生态工程的重点支流治理项目，经过几年投资集中治理，项目建设成效显著。

The hydrocarbon contamination of the environment is a serious threat to the health of human and ecosystem.

环境中广泛存在的石油烃污染物对人体健康和生态系统的安全构成了很大威胁。

The petroleum hydrocarbon contamination of the environment is a serious threat to the health of human and ecosystem.

环境中广泛存在的石油烃污染物对人体健康和生态系统的安全构成了很大威胁。

The construction of the hydroelectric power will interfere the various parts of the ecosystem to some extent.

在两个水电站的建设中，生态系统的许多组成部分都会受到一定程度的干扰，必须加强管理、监督，做好生态恢复工作。

In this paper, the characteristics of the wetland ecosystem of the Poyang Lake national nature reserve are discussed through considerations of the hydrography, soil, biological composition and system function.

鄱阳湖是我国最大的淡水湖。鄱阳湖自然保护区以其独特的地形地貌，在亚热带湿润季风气候综合作用下，形成了一个多功能的复合湿地生态系统。根据湿地三条划分标准：有充分的水分、有机质含量较高的土壤及适应于此环境的植被。鄱阳湖自然保护区属淡水湿地生态系统。

Constructed wetlands are artificial wastewater treatment systems which contain physical, chemical and biological process in the ecosystem, and treat wastewater efficiently according to filtration, absorption, deposition, hydronium exchange, as well as microbe decomposition.

人工湿地是，是由人工建造、监督和控制的，它充分利用湿地系统净化污水能力的特点，利用生态系统中的物理、化学和生物的三重协同作用，通过过滤、吸附、沉淀、离子交换、植物吸收和微生物分解来实现对污水的高效净化。

Urban wetland park ; Ecosystem ; Environment protection ; Hydrophyte ; Countermeasure

城市湿地公园；生态系统；环境保护；水生植物；对策

The product mainly works as the new type of animal feed additive and animal hygienical product, acting for the usage of the animal feed antibiotics,hence promoting the livestock industry to develope in direction of safety, ecosystem and persistence.

产品主要用作新型饲料添加剂和动物保健品，替代饲料抗生素的使用，促进畜牧业向安全，生态和可持续方向发展。

The ecosystem health of reach from Longyangxia to Liujiaxia had been evaluated by fish IBI,diversity index of plankton,water quantity and water quality.

利用鱼类IBI指数，浮游生物多样性指数、水量、水质等指标，对龙羊峡-刘家峡河段生态系统健康进行评价。

The riv- er′s health status can be determined through a holistic appraisal of rivers and their surrounds.Five components of the rivers health include: water quality, aquatic life, physical form, hydrology and streamside zone.Many methods and criteria are available to assess the status of river ecosystem, and this review focuses on RIVPACS,AUSRIVAS,IBI,RCE,ISC,RHS and RHP, which are classified into the pred...

阐述了河流健康状况的内涵，尝试从理化参数、生物指标、形态结构、水文特征、河岸带状况5个方面表征河流的健康状况；并从预测模型法和多指标评价法角度对河流无脊椎动物预测和分类系统、澳大利亚河流评价计划、生物完整性指数、RCE清单、溪流状态指数、河流生态环境调查、河流健康计划等河流健康状况的评价方法进行评述；在探讨美国、英国、澳大利亚、南非等国家河流健康状况评价开展情况的基础上，指出我国迫切需要构建一套适合国情的河流健康状况评价体系，从河流健康角度评价国内主要河流的生态环境质量，并为广泛开展的河流恢复项目提供基础数据和决策依据。

In this new architectural plan the Garden of Golgotha came to be at the centre of the new city.

Aelia 是高举他自己，并在此城内朝拜罗马诸神。

The continuous nature of peat accumulation means that terrestrial coaly rocks may provide a higher resolution and more complete record of base-level change than the time-equivalent shallow-marine strata, thus enabling the identification of highfrequency cycles that are not recorded in themarine strata.

泥炭积累的持续性质的手段，陆地coaly岩石可提供较高的分辨率和更完整的记录基准面变化的影响时，相当于浅海阶层，从而使确定的高频周期，不记录在themarine 阶层。