Plant life balances ecosystems, protects watersheds, mitigates erosion, moderates climate and provides shelter for many animal species.
植物平衡了生态系统、保护了流域、减缓了侵蚀、缓和了气候，为许多动物物种提供了庇护所。
State governments are well accustomed to managing forests, but traditionally they've focused on wildlife, watersheds and opportunities for recreation.
州政府已经习惯了管理森林，但一直以来他们关注的是野生动物、集水区和娱乐项目。
Forests protect watersheds which supply fresh water to rivers.
森林保护向江河供应淡水的流域。
One widely-cited example concerns the watersheds that supply New York, in the Catskill Mountains and elsewhere around the city.
有个得到广泛引用的实例涉及到在卡茨基尔山及该市周边的其它地区供应纽约的水域。
Tree planting, as in this image from Madagascar, helps protect watersheds.
如这幅来自马达加斯加的图片显示，植树有助于保护水域。
Yet he also turned deserts into watersheds and parched land into flowing springs.
他又能使沙漠变成水源，使旱地变成水泉。
This will be useful for rivers but may also be useful for calculating watersheds and other features.
这对于计算河流很有用，但也可以用于计算分水岭和其它特征。
The available data for watersheds were assembled and consolidated and the metadata were standardized.
收集和整理小流域数据，进行元数据标准化。
SCS model is applied to calculating runoff amount of several typical small watersheds of North of Shaanxi and Weibei .
用SCS降水-径流模型对陕北渭北多个典型小型集水区降雨径流量进行了分析与计算。
This paper presents a new kind of algorithm for cell image segmentation, which is based on region-growing and watersheds.
提出了一种基于区域增长和改进分水岭算法的胃腺癌细胞图像分割方法。
Since 1985, Guyuan County has conducted a study on terraced fields with slope with the combination of comprehensive management of small watersheds.
1985年以来，固原县结合小流域综合治理，开展了隔坡梯田模式研究。
This paper discusses how to design and establish soil and water conservation information system for small watersheds based on component GIS technology.
研究了基于组件式GIS的小流域水土保持信息系统的设计与实现；
The fast extraction of the watersheds based on DEM saves manpower and material resources greatly, which is feasible according to efficiency and precision.
基于DEM的流域的快速提取，大大节省了的人力、物力，从提取的效率和精度来看都是切实可行的。
By this method, we found that the VRD indices for most watersheds of the northwestern basin were less than -0.2, displaying a severe vegetation deficiency.
通过该评价方法发现，在泾河流域西北部的大部分子流域的植被冗亏指数小于-0.2，植被亏缺较为严重；
Then the objective function is applied to five difference watersheds for design of rain gauging stations network, and is compared with result of other method.
然后运用目标函数对五个不同流域进行雨量站网规划，并同其它方法进行比较。
Article 12 the state shall, with respect to water resources, adopt a system that organizes the administration by watersheds as well as by administrative areas.
第十二条国家对水资源实行流域管理与行政区域管理相结合的管理体制。
The effects of forest types on hydrochemical characteristics of streams in Liangshui National Nature Reserve were studied by the comparison experiment of watersheds.
采用集水区对比分析方法，探讨凉水国家级自然保护区不同森林类型对溪流水化学特征的影响。
Not only do they help collect and filter water for local aquifers and watersheds, they also help prevent flash floods and runoff that pollute waterways and worsen droughts.
树木不仅能为当地的含水层和集水区采集并过滤水，而且还有助于防止对水道造成污染并使干旱恶化的洪水暴发和溢流。
Seafloor mining might therefore be less destructive than mining on land, which brings such not-exactly-benign consequences as mountaintop removal, mercury pollution, and destruction of watersheds.
因此，海底矿物开采比起在陆地上进行的开采，破坏性就小了许多。陆上开采可能造成诸如削平山头，水银污染和水域破坏的恶性后果。
The effects of soil and water conservation on surface runoff process in small watersheds of the Qinba mountainous region are analyzed by the parallel observation in two comparable watersheds.
采用小流域平行对比法，分析秦巴山区小流域的次降雨洪水过程，研究了水土保持综合治理对小流域洪水的作用过程。
Based on the basic principle of the HBV conceptual hydrological model, a hydrological model of the mountainous watersheds in the arid inland area of northwest China was developed by the authors.
根据HBV水文模型的基本原理，建立了西北干旱区内陆河出山径流概念性水文模型。
Based on the basic principle of the HBV conceptual hydrological model, a hydrological model of the mountainous watersheds in the arid inland area of northwest China was developed by the authors.
根据HBV水文模型的基本原理，建立了西北干旱区内陆河出山径流概念性水文模型。
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