摘要
黄土高原沟壑区塬坡面农田土地类型大体上可分为坡耕地、水平梯田、坡式梯田等；种植作物主要有小麦、玉米、棉花、油菜、豆类和果树等。由于土地类型和作物种类的不同，在小流域水土流失综合治理中，如何配置才能获得最佳生态经济效益，在当前是一个关注的问题。本文根据系统工程理论方法探讨了此问题，以泥河沟流域为典范，提出了最优种植结构组合方案及最佳种植面积。
Farmlands on slopes of valley region of the Loess Plateau could be divided into cultivated land on slopes, bench terrace, sloping terrace, etc. Main crops in the region are wheat, maize, cotton, rape and legumes, also there are some fruit trees. Considering both types of farmlands and species of crops are different, great attention has been paid to how to dispose them so as to get the best economical and eclogical benefit through multipurpose control of soil erosion in small watersheds. Optimized growing pattern and the best growing area suitable for Nihegou valley are given according to the restults analyzed by the theory of systems engineering.
出处
《西北林学院学报》
CSCD
1995年第A01期142-147,共6页
Journal of Northwest Forestry University
关键词
塬坡面
种植结构
经济效益
slope
growing pattern
optimization
economical benefit.
