in the catchment scale, study on evapotranspiration is the basis for understanding hydrological cycle and for optimal allocation of water resources.

流域蒸散发研究是明晰流域水循环机理，支撑流域水资源优化配置的基础。

under the future climate scenario, how do the hydrological cycle and the hydrological variation change in zhalong wetland?

选取了气候模式连接水文模型和利用干旱指数预测径流两种方法模拟气候变化对流域水文特性影响。

human activities and utilization of water resources have affected the hydrological cycle and water balance, which led to serious degeneration of eco-environment.

人类经济活动和水资源开发利用已影响到内陆水文状态并导致生态环境的严重退化。

water balance elements of urban hydrological cycle have been measured and investigated, then checked by means of water balance equation in urban areas.

通过精测与调查收集城市水资源要素，并用城市水平衡方法检验。

the main conclusions are as the follows: (a) the principle of hydrological cycle and water balance is the basic principle to study the eco-environmental water use and demand of river basin;

主要结论为，水文循环与水量平衡理论是研究流域生态需水的基本原理；

historical records showed that the behaviors of water utilization against evolution procedures of hydrological cycle caused the water shortage and the flood.

历史的教训表明，人类用水行为违背区域水循环自然规律，不仅会造成水资源问题，而且还会引发与水有关的灾害；

study on hydrological cycle effect in river basin based on principal component analysis;

主要介绍用主成分分析法对输入变量进行预处理的方法 。

thus cloudiness decreases even as the hydrological cycle accelerates and precipitation and evaporation increase.

云量降低甚至出现在水循环加速和降水、蒸发增加以后。

the gis technique is applied as a data processing plateform to develop a distributed model for simulating the hydrological cycle system in the heihe river basin, namely wep-heihe.

从水循环的物理机制着手，在考虑人工侧支循环的基础上，以现代地理信息技术为数据处理平台，开发了黑河流域水循环系统的分布式模拟模型。

the two great lakes continuous, hydrological cycle all match leonardo's observations about how the landscape we see today was shaped by the power of water.

两条大河持续不断的沖刷循环造就了我们今天所看到的风景。

observational evidence for the mutual regulation of the tropical hydrological cycle and tropical sea surface temperatures.

热带水文循环和热带海面温度多规则的观测证据。

overall the land use changes in the yangtze river basin may intensify the hydrological cycle of the basin, which should increase summer precipitation and streamflow.

总体而言，土地利用改变加剧了长江流域夏季水循环过程，使得夏季长江中下游地区降水增多，径流增大。

the concept of irrigation hydrology is pointed out in the research on hydrological cycle at different scales in irrigation area and interaction of irrigation-drainage and hydrology.

由于灌区下垫面性质的空间变异性和人类活动对水分循环的影响，灌区呈现出与自然流域不同的水文特征。

a series of rainfall were selected as the main factor of the basin runoff. then, the effect of rainfall on runoff and hydrological cycle was revealed through the distributed hydrological model.

选取降雨作为流域径流的主要影响因子，随机设定一系列降雨情景，通过模型计算有效揭示降雨对流域径流及水文循环的影响效应。

so the paper has positive significance to analyze the climate, hydrological cycle and land use change in the gong-he basin and the region of qingham-tibetan plateau further.

该研究对进一步分析共和盆地和相邻的青藏高原区的气候、水文和水土资源利用有一定的指导意义。