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当前位置: 首页 > 文章 > 祁连山青海云杉林调节林内水分变化研究 西北林学院学报 2001,16 (1) 43-45
Position: Home > Articles > Research on Change Law of Hydrologic Picea crassifolia Forests in Qilian Mountains Journal of Northwest Forestry University 2001,16 (1) 43-45

祁连山青海云杉林调节林内水分变化研究

作  者：
王金叶;刘贤德;金博文;王艺林;刘志娟
单  位：
甘肃省张掖祁连山水源林研究所
关键词：
青海云杉林;水文功能;祁连
摘  要：
长期定位观测研究青海云杉林调节水分变化规律表明 :森林林冠层截留降水使到达林内的降水量减少、强度降低 ;林冠层遮蔽减弱了林内太阳辐射 ,降低了林内土壤蒸发 ,保持林内湿度较高、土壤含有较多水分 ;森林的蒸发散使同一高度林区上空的湿度比草地或裸地高。
译  名：
Research on Change Law of Hydrologic Picea crassifolia Forests in Qilian Mountains
作  者：
WANG Jin-ye, LIU Xian-de, JIN Bo-wen, WANG Yi-lin, LIU Zhi-juan (Institute of Water Resource Conservation Forest of Qilian Mountains of Zhangye, Zhangye, Gansu, 734000, China)
关键词：
Picea crassifolia forests;hydrology function;Qilian Mountains
摘  要：
Through long term and located observation, the law and function of forests on hydrologic cycle, forest on the water evaporation, humidity and soil water of catchments areas were summarized. The forests influence the amount of precipitation and intensity, reduce evaporation in forest by canopy interception, which refrains from runoff and soil and water erosion. Forests reduce water evaporation of forests-land since canopy shadow, which keeps a full air humidity and water in the soil, provide shadow environment and full water conditions for hydrophilous vegetation growth. The air humidity of forests at the same height is higher than grasslands or bare lands due to the forests evaporation, and forests change the parts of air circulation, so make use of the favourable factors for precipitation and take effect for increasing rainfalls in forests area.

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