摘要
淮河流域因解决粮柴短缺问题造成新的水土流失面积约3880万亩,占全流域山丘区总流失面积的44%,其中滥垦山地300万亩,坡耕地1000万亩,坡式梯田500万亩,田间隙地、林粮间作地400万亩,滥樵滥伐林地1680万亩,所导致的土壤侵蚀量达1.2亿t,占总侵蚀量的52%。该文在分析上述问题的基础上,提出了对现有林草植被和水土资源的保护,引进节能技术,选择优良品种,大搞水土保持,狠抓坡耕地治理,营造薪炭林,以及开展以小流域为单元的综合治理,解决流域内因粮柴短缺问题造成的水土流失。
The newly-eroded area caused by sloving the problem of food and feul shortage in the Huaihe River watershed is about 38.88 million mu, accounting for 44% of total eroded area in the mountain and hill areas in the whole watershed, of which the indiscriminate mountain land reclamation is 3 million mu; cultivated slopping lands, 10 million mu; blank lands and forest and food crop intereropping lands, 4 million mu; and indiscriminate deforestration are 16.8 million mu. As a result, the amount of eroded soil can reach 120 million tons, accounting for 52% of total eroded soil. Based on the analysis of erosion problem, This paper suggests such measures as conservation of the existing forest and vegetation cover and water and soil resources, introduction of energy-saving techniques, selection of fine crop varieties, doing a large-scale work on water and soil conservation, seriously controlling erosion on slopping lands, planting firewood trees, and carrying out comprehensive controlling progfamines with small watersheds as the controlling unit so as to solve the problem of soil erosion caused by the shortage of food and firewood.
出处
《水土保持通报》
CSCD
北大核心
1991年第5期45-53,共9页
Bulletin of Soil and Water Conservation
关键词
土壤侵蚀
人为因素
防治
the Haihe river watershed human activities shortage of food and firewood water and soil loss controlling countermeasures
