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ecosystem
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  生态系统
    EVALUATION OF THE WETLAND ECOSYSTEM OF THE POYANG LAKE NATIONAL NATURE RESERVE IN JIANGXI PROVINCE
    江西鄱阳湖国家级自然保护区湿地生态系统评价
短句来源
    Formation and Protection of Changjiang Ecosystem Ⅱ. Protection and Legislation of Changjiang Ecosystem
    长江生态系统的形成及其保护——Ⅱ.长江生态系统的保护与立法
短句来源
    The assessment indicators of wetland ecosystem health
    湿地生态系统健康评估指标体系研究
短句来源
    Ecosystem Approaches to Water Security in Northwest China
    西北地区水资源安全的生态系统途径
短句来源
    Evaluation and Adjustment of Ecosystem Service's Value of Tongling City
    铜陵市生态系统服务功能价值评估与调整
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  生态
    Research on the Rational Allocation for Water Using of Economic and Ecosystem in NingXia
    宁夏经济用水与生态用水合理配置研究
短句来源
    Analysis of the Agricultural Ecosystem ofXingji Township and the Orientation of Regulating the Ecological Structure
    邢集乡农业系统分析与调整生态结构的方向
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    Water Resources Guaranteeing Condition of Ecosystem Recovery in Northwestern China
    西北生态建设的水资源保障条件
短句来源
    Development Strategy of Eco-tourism and City Ecosystem in China
    生态旅游及生态城市发展战略探讨
短句来源
    A Study of Water Ecosystem Evolution Using the Method of IWSD
    基于流域水资源承载力平衡指数方法的海河流域水生态环境变迁研究
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  “ecosystem”译为未确定词的双语例句
    Jinggangshan Natural National Reserve,situated in the middle of the Luoxiao Mountains,is a reserve for forestry ecosystem. The snake resource in the reserve was investigated from 2002 to 2005.Two new species were encountered,Bungarus multicinctus and Agkistrodon brevicaudus.
    2002~2005年对井冈山国家级自然保护区的蛇类进行了调查,发现当地2种新记录,银环蛇(Bungarus multicinctus)和短尾蝮(Agkistrodon brevicaudus)。
短句来源
    Discussion about strategy of sustainable utilization of water resources and protection of ecosystem environment in Caidamu basin in 21_(st) century
    浅谈21世纪柴达木盆地水资源可持续利用与生态环境保护策略
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    Research on renewable energy utilization in urban agricultural ecosystem
    都市农业生态系统可再生能源利用模式研究
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    Grey Forecast of the Global Ecosystem
    2000年世界生态的前景预测
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    THE EFFECTS OF WATER EXPLOITAGE ON THE ECOSYSTEM IN BAIYANGDIAN
    水资源开发利用对白洋淀生态环境的影响
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  ecosystem
Increasing the impulsive period τ, the system undergoes a series of period-doubling bifurcation leading to chaos, which implies that the dynamical behaviors of the periodically pulsed ratio-dependent predator-prey ecosystem are very complex.
      
To optimize the spatial structure of an ecosystem, a forest landscape was selected as a research object.
      
Based on the methods of landscape ecology and ecological planning, this paper develops a zoning project of ecosystem functions suitable for various environments.
      
Fourth, efficient measures should be taken to stop human activities that are harmful to Metasequoia and to improve the environment of ONMMT in order to promote the protection of the ONMMT population and its ecosystem.
      
Relationship and its ecological significance between plant species diversity and ecosystem function of soil conservation in semi
      
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The present paper mainly disses the impacts of East and Middle-Route water diversion from the Changjiang River to the Huang-Huai-Hai Plains upon natal environment.1.Studies of the changes of water circulation and water resources as well as their relationships with biocycle, atmospheric circulation and geologic process are key problems concerning the impact of inter-basin water transfer on natural environment. The process With respect to the impact of water transfer on the environment can be Summed up roughly...

The present paper mainly disses the impacts of East and Middle-Route water diversion from the Changjiang River to the Huang-Huai-Hai Plains upon natal environment.1.Studies of the changes of water circulation and water resources as well as their relationships with biocycle, atmospheric circulation and geologic process are key problems concerning the impact of inter-basin water transfer on natural environment. The process With respect to the impact of water transfer on the environment can be Summed up roughly by the following model.Water transfer→changes of the original hydrological regime→changes of thenatural environment→changes of social economy.2.The impacts of any water transfer project on the environment., according to geographic regions, may be divided into three different regions with regard to issues, namely, the water-exported region, the region through ,which water is transferred and the water-imported region.The water-exported region, With the completion of the .water transfer, influence will chiefly occur at the initial point where water starts to be exported and at the lower reaches of the river below the initial point during low-flow period.The main influence of water transfer on natural environments are as follows. Possible intensification of sea water intrusion, the acceleration of the deposition of fine particles and the expansion of bars in the Chang-jiang estuary due to the decrease of runoff of Changjiang river in low-flow periods.3.The region through which water is transferred.It mainly refers to areas on both sids of the conveyance canals as well as to the surroundings of the .water bodies of regulation and storage that are involved .Water transfer of the East route will certainly exert some influence on the water quality and aquatic ecosystems of the lakes. 4.The water-imported region: Large quantities of water diverted from Changjiang River into the Huang-Huai-Hai Plains through the middle and East Roites will inevitably cause great changes on ecosystems of the Plains. The major problems to be ackled concerning impacts of water transfer on natural environment in the water imported region are as follows. The prevention of secondary salinization and alka-lization in irrigated areas and the influence of water transfer on climate in irrigated areas and their surrounding environments.

本文主要讨论了从长江向黄淮海平原调水对自然环境的影响。 研究水分循环和水资源的变化及与之有关的物质循环的关系,是研究跨流域调水对自然环境影响的核心问题。调水对环境影响的过程,大体可归结为如下的模式:调水→改变原有的水文情势→自然环境的变化→社会经济的变化。 任何调水工程对环境的影响,均可按地理分区方法分为水量输出区、输水通过区和水量输入区。南水北调对水量输出区的影响主要在枯水期发生在输水点附近及其下游。输水通过区主要使输水渠两侧和蓄水体周围环境受到影响。大量长江水调入黄准海平原,在一定程度上将引起黄淮海平原生态系统的变化。

The present paper mainly deals with water allocation in the First-Stage Projeet of the East-Route Water Transfer in China on the basis of system analysis from geographical point of view. According to water-heat budget of the water transfer regions, the water allocation can be estimated geographicallyby an index of aridity.where. P = precipitation; Eo = potential evaporation. As for the value T, it is referred to as the water allocation from the geographical point of view. The T also depends on Agricultural and...

The present paper mainly deals with water allocation in the First-Stage Projeet of the East-Route Water Transfer in China on the basis of system analysis from geographical point of view. According to water-heat budget of the water transfer regions, the water allocation can be estimated geographicallyby an index of aridity.where. P = precipitation; Eo = potential evaporation. As for the value T, it is referred to as the water allocation from the geographical point of view. The T also depends on Agricultural and industrial sectors and water consumption of urban and rural population.The objective function is obtained as follows.It's the subject of water consumption from all the sectors of water user. Finally, this paper illustrates the results calculated by the output of the presented model. 1, Water allocation varies nonlinearly in accordance with the magnitude of water diversion; 2, Two major water supply sections would be found in northern Jiangsu and southwestern Shandong Provinces respectively and 3 , Water allocation should be subjected to the benefit of environmental ecosystems

本文根据自然地理地带性规律指标与水量平衡原理,提出了统一需水与环境要求的跨流域调水水量分配的系统分析模型,并以南水北调一期工程为例,展示了地理系统分析的具体应用。

The relationship between water resources utilization and oasis establishment in the Shulehe River Watershed is discussed in this paper. Surface runoff of the watershed mainly originates from the high mountain region of the Qilian Nountain. In order to make full use of potential of water, the overall watershed planning should be made and feasible measures should be taken such as coordinatring use of surface runoff and ground water, developing and utilizing water near the users, protecting the environment of down...

The relationship between water resources utilization and oasis establishment in the Shulehe River Watershed is discussed in this paper. Surface runoff of the watershed mainly originates from the high mountain region of the Qilian Nountain. In order to make full use of potential of water, the overall watershed planning should be made and feasible measures should be taken such as coordinatring use of surface runoff and ground water, developing and utilizing water near the users, protecting the environment of down stream,area, raising the dam of Danghe Resevoir, transforming old oases and establishing new oases, expanding the forest lands and following the procedures of land development etc. so as to create an ecosystem environment of high efficient arrtificial irrigation oases in the Shulehe River Watershed.

本文讨论了疏勒河流域水资源合理利用与绿洲建设的关系。疏勒河流域地表径流主要形成于高山区。为了充分发挥有限的水资源潜力,应作出全面流域规划,采取地表水与地下水的联合利用,水资源就近开发利用,保护下游地区环境、加高党河水库、改造老绿洲、建设新绿洲、扩大林地,遵循开发顺序等可行措施,建设高效的人工绿洲生态环境。

 
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