小流域通常是指二、三级支流以下以分水岭和下游河道出口断面为界集水面积在50k㎡以下的相对独立和封闭的自然汇水区域。水利上通常指面积小于50 k㎡或河道基本上是在一个县属范围内的流域。小流域一般面积不超过50k㎡。小流域的基本组成单位是微流域，是为精确划分自然流域边界并形成流域拓扑关系而划定的最小自然集水单元。 为了便于管理，跨越县级行政区的小流域又会按照县级行政区界限分割成小流域亚单元。
... minor watershed 小流域 watershed management 流域管理 watershed area 分水界域,汇水面积,...
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赣南小流域溶解态稀土 DREE
城市中小流域 Urban Watershed
小流域N素收支 Nitrogen input and output in small watershed
小流域综合治理 Integrated management of watershed ; [农] small watershed management ; comprehensive management of small watershed ; small watershed comprehensive control
小流域治理 minor drainage basin management ; Small Watershed Control ; watershed management
The result offers reference on protection forest system construction in small watershed.
这一结果为小流域尺度防护林建设提够了一定价值的参考依据。
参考来源 - 北京山区典型流域防护林体系对位配置研究Watershed management is one of the most efficient ways for soil and water conservation in China.
小流域综合治理是我国开展水土保持生态环境建设的主要方式和途径之一。
参考来源 - 参与式小流域土地利用格局调控研究Since most of these method are based on GIS technique and land use pattern, they can be used in land/cover change on catchment scale but also on regional scale.
这些研究方法主要以GIS为技术支持，不仅适应于小流域土地利用变化的综合研究，而且对区域土地利用变化的综合研究也具有非常好的应用前景。
参考来源 - 纸坊沟流域近百年来土地利用/覆被变化与环境响应研究At the same time, we have finished testing in Yandaogou small basin, and made extension and application in Yanwang small basin.
同时，选用了晋西汾河上游的阳湾小流域进行了模型的推广应用，取得了较好的预测效果。
参考来源 - 黄土丘陵沟壑区小流域不同地类的侵蚀产沙模型 Soil Erosion and Sediment Yield Models of Different Land Types in Small Basins in the Hilly Loss RegionWater in small river basin is being polluted badly, which directly worsen the water quality in mainstream.
小流域污染严重,直接导致干流污染加剧,其水污染防治工作迫在眉睫。
参考来源 - 小流域地表水环境容量计算方法与利用研究The Guangqiao River Catchment is situated at the low mountain-hill region of the middle and lower reaches of the Changjiang River. In recent years,the natural disaster presented frequently.
光桥河小流域地处长江中下游的低山丘陵地带,近几年自然灾害频繁,生态环境脆弱,经济发展与生态环境矛盾突出。
参考来源 - 基于RS与GIS的土地利用/覆盖变化研究This paper single out two places of Beijiang River drainage basin ? Binjiang River small drainage basin and Pajiang River natural detention basin in Guangdong province to study flood risk zonation.
本文选择了广东省北江流域的两处区域——滨江小流域和潖江天然蓄滞洪区，进行洪灾风险区划的研究。
参考来源 - 基于遥感与地理信息系统的洪灾风险区划研究·2,447,543篇论文数据，部分数据来源于NoteExpress
研究了小流域生态系统健康评价方法及指标体系。
The small watershed ecosystem health assessment methods and index system were studied.
结果表明：不同类型小流域径流的年际和年内变化不同。
The results show that the runoff variations of interannual and seasonal are various.
降雨、径流和植被是红壤小流域土壤侵蚀的主要影响因素。
Rainfall, runoff and vegetation are mainly factors impacting soil loss in red soil watershed.
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