论文部分内容阅读
在我国西北黄土高原地区,有大量荒山荒坡,水土流失严重,种植粮食作物产量低或没有产量。如果发展山地果园,既可保持水土,又可发展山区经济。 黄土高原地区发展山地果园的主要技术:1 发展山地果园要搞好平田整地 在黄土高原地区要建立山地果园,首先要做好平田整地工作。根据山地等高线,坡度较小的修建梯田,坡度较大的修建鱼鳞坑,进行等高栽植,这样可以蓄积降雨到行内和树下,提高局部土壤的水分利用能力,增加抗旱性。也可以防止水土流失。
In the northwestern Loess Plateau of China, there are a large number of barren hills and slopes with serious soil erosion and low or no grain yield. If the development of mountain orchards, both soil and water conservation, but also the development of mountain economy. The main techniques for developing mountain orchards in the Loess Plateau: 1. To develop mountain orchards To improve the preparation of flat fields In the Loess Plateau, to establish mountain orchards, we must first make preparations for site preparation. According to the mountain contour, the smaller the construction of terraced rice terraces, slopes of the construction of fish scale pit, contour planting, which can accumulate rainfall to the line and under the tree, improve local soil water use ability and increase drought resistance. Can also prevent soil erosion.