摘要
采用室内模拟法 ,研究了 11个树种的不同L ,F层组合对地表径流、截持降雨量和水分蒸发强度的影响 .结果表明 :①在不同L ,F层组合涵养水源作用中 ,以厚LF最佳 ,其次为厚F ;②不同树种间以落叶松最佳 ,其次为油松、侧柏 ,阔叶树种较差 ;③枯枝落叶层持水后的水分蒸发过程 ,可用指数函数型表示 ;
In this experiment, simulated rainfall and evaporation methods were applied respectively to study the effect of forest litter on surface runoff, rainfall interception and water evaporation in different L and F composition under 11 different species. The results show that: ①for the role of water source conservation, the litter layer of L 2 cm+F 3 cm was the best, the second was the layer of F 3 cm; ② Among different tree species, Larix princips rupprechtii was the best, the second were Pinus tabulaeformis and Platycladus orientalis, the other eight broad leaf tree species were the third; ③The water evaporation course in the surface litter after moisture absorption can be illustrated with index function; ④The rainfall interception under middle rainfall amount were the largest.
出处
《北京林业大学学报》
EI
CAS
CSCD
北大核心
2000年第5期49-52,共4页
Journal of Beijing Forestry University
基金
"九五"国家科技攻关专题资助 !(96 0 11 0 2 0 2 )
