论文部分内容阅读
甘肃省中部干旱黄土丘陵沟壑区,自然植被遭到严重破坏,干旱少雨,水土流失十分严重,自然灾害频繁,粮食产量低而不稳,“四料”俱缺,水源奇缺,人民生活比较困难。为了探讨尽快恢复植被,提高植被盖度,控制水土流失,保护环境,恢复并保持生态平衡,急需进行探索新的途径,为此,我站从1979年春开始在榆中北山韦营玉家湾、下大山等地布设了1100亩封坡育草试验。现将结果整理初报如下:
In the arid loess hilly and gully areas of central Gansu Province, natural vegetation has been severely damaged, with less drought and less soil erosion, frequent natural disasters, low and unstable grain output, lack of materials, water shortage and poor people’s livelihood . In order to explore restoration of vegetation as soon as possible, improvement of vegetation cover, control of soil and water loss, environmental protection, restoration and maintenance of ecological balance, and urgent need to explore new ways, Xia Dashan and other places laid 1100 acres of closed slope grass test. The results are now organized as follows: