2012-2018年黄土高塬沟壑区南小河沟流域下垫面调查数据集

本数据集为黄土高塬沟壑区南小河沟流域下垫面调查数据。调查方法为基于地形图人工勾绘图斑后再现场进行核查。调查内容包括流域基本情况调查、下垫面基本数据调查、水土保持治理措施调查（植物措施面积、工程措施面积）、水土保持点状工程调查（沟头防护、谷坊、水窖、涝池、治沟骨干工程、上水工程），计17大项，31小项。）

This dataset consists of underlying surface survey data of the Nanxiaohegou Watershed in the Loess Plateau Gully Region. The survey method involves manual delineation of patches based on topographic maps followed by on-site verification. The survey content includes 17 major items and 31 minor items, covering the survey of basic watershed conditions, the survey of basic underlying surface data, the survey of soil and water conservation measures (area of vegetation measures, area of engineering measures), and the survey of point-type soil and water conservation projects (gully head protection, check dam, water cellar, flood detention pond, key gully control project, water supply project).