摘要
青海省地处"三江"发源地,总面积72 12万km2,其中水土流失面积33 4万km2,占46%。造成水土流失的原因是:自然条件严酷;地质结构复杂;坡耕地多;林草覆盖率低;过度开垦。在此基础上提出了今后生态建设的思路。
The total area of Qinghai province, which locates in the source of 'Three Rivers' (Nujiang River, Lancang River, Jinsha River) is 721,200 km^2, including 334,000 km^2 of erosion area, accounting for 46% of the total. The reasons for the erosion can be summarized as followed: cruel natural condition, complicated geographic structure, a large proportion of slope land, low coverage of shrub & grass, and over-exploitation. Thus the thinking on future eco-construction is put forward on the analysis of contributing factors.
出处
《林业调查规划》
2004年第4期55-58,共4页
Forest Inventory and Planning
关键词
青海
水土流失
成因
生态建设
综合治理
water & soil erosion
analysis of contributing factor
eco-construction
thinking
Qinghai province
