摘要
枯枝落叶作为森林生态系统中净第一性生产力的重要组成部分,是物质循环过程中的一个物质库,起着涵养水分,减少地表蒸发,改善土壤肥力,防止水土流失的重要作用。油松(Pinus tabulaeformis)和侧柏(Platicladus orientalis)是我国北方山区防护林的主要造林树种,目前多为人工纯林。这种针叶纯林一般生长缓慢,郁闭较迟,保持水土的能力也较差,并易受自然灾害的影响。
Sampling plot researches revealed significant effect of forest litter on soil fertility, soil conservation,water regulation and soil temperature and humidity. It is also found that when Chinese arborvitae is property mixed with Chinese pine, it can remedy the defects of pure stands and improve the overall ecological benefits.Therefore Chinese pine and Chinese arborvitae mixed forests are considered to be widely prospective in mountainous areas end their litters should be strongly preserved.
出处
《生态学杂志》
CAS
CSCD
北大核心
1992年第1期32-37,47,共7页
Chinese Journal of Ecology
关键词
油松
侧柏
森林生态效益
forest litter, ecological effect, mixed forest.
