摘要
通过对水土保持林体系区域性生态效益进行观测和分析 ,结果表明 :水土保持林具有较强的气温调节作用和减少水分蒸发作用 ;水土保持林内在生长季节各月平均湿度大于林外 ,并具有很强的截留降雨作用 ,平均截持率达 2 2 % ;并且改善了土壤结构和理化性质 。
Observation and analysis of the regional ecological benefit of soil and water conservation forest system showed that the forest system had functions-regulating air temperature ,reducing moisture vaporization,conserving soil humidity and blocking 22% of rainwater.It also can improve soil structure and physicochemical properties, reduce surface runoff and soil losses.
出处
《防护林科技》
2004年第5期30-32,共3页
Protection Forest Science and Technology
关键词
黑龙江
黑土丘陵漫岗区
水土保持林
生态效益
black soil
gentle hilly region
soil and water conservation forest
ecological benefit
