摘要
影响水土流失的因素众多而复杂 ,以福建省为研究区域 ,在闽西北、闽中、闽东、闽西南和闽东南 5个地区共建立了 4 4 2个样区 ,应用数量化理论 ,分析样区的土壤侵蚀强度与植被覆盖度、植被结构、土地利用类型、坡度、母岩类型和工程措施及有机质、质地、分散率和降雨侵蚀力 R值等的关系 ,结果表明 :影响福建省水土流失的主导因子为植被覆盖度、工程措施、降雨侵蚀力 R值、土地利用类型、坡度和有机质 6个主导因子 ,另外 ,母岩对福建省的水土流失也有一定的影响。
The factors which influence soil and water loss are multitude and complex. To find out the major influential factors ,442 sample plots were established in the north west, the middle, the east, the south west and the south east in Fujian province. With the theory Ⅰof quantification,the relationship between soil erosion intensity and the influential factors, I.e., vegetation cover degree, vegetation structure, land use, slope degree, parent rock, engineering measures, organic matter, soil texture, soil dispersion and rainfall erodibility index, was analyzed. The results showed that, among the factors above, the major factors notably influenced soil erosion were vegetation cover degree, engineering measures, rainfall erosion index, slope degree, organic matter and land use. The factor of parent rock also impacted to soil erosion.
出处
《水土保持学报》
CSCD
北大核心
2000年第2期36-40,54,共6页
Journal of Soil and Water Conservation
基金
福建省教委科研基金资助项目
关键词
水土流失
主导因子
数量化理论Ⅰ
植被覆盖度
soil and water loss
major influential factors
theory Ⅰof quantification
