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纸坊沟流域是延河支流杏子河下游的一条小支沟,沟长8公里,集水面积8.3平方公里。流域内包括两个行政村的纸坊沟、寺崾岘、瓦树塌三个自然村,共有82户,365人。人口密度每平方公里44.2人,每人平均土地34亩。由于新构造运动的影响,加之垦耕指数越来越大,土壤侵蚀十分强烈。尤其是上游重力侵蚀活跃,沟头不断延伸,沟间地被切割和蚕食,造成地面支离破碎,土地类型复杂多样,为典型的梁状黄土丘陵地貌。为了深入研究陕北黄土丘陵区的土地类型结构和土地利用现状,为这一地区合理利用土地资
Zhifanggou drainage basin is the tributary of the Yanhe River downstream of a small tributary ditch, 8 km long, catchment area of 8.3 square kilometers. The basin includes two administrative villages of Zhifanggou, Temple 崾 Dan, tile tree collapse three natural villages, a total of 82, 365 people. The population density of 44.2 people per square kilometer, an average of 34 acres of land per person. Due to the influence of Neotectonic movement and the increase of cultivation index, soil erosion is very strong. In particular, the upper reaches of the gravity erosion is active, ditch continue to extend, ditch was cut and eroded, resulting in ground fragmentation, complex and diverse types of land for the typical beam-like loess hilly landscape. In order to further study the land type structure and land use status in the loess hilly region of northern Shaanxi, to make rational use of land resources in this region