摘要
分析了28年生油松人工林对降水的再分配及林冠容水量与蒸发速率。林冠对降水的再分配是:林冠截留量占17.4%,林内降水量占80.2%,树干径流量占2.4%。林冠容水量为1.12mm,平均蒸发速率为0.18mm/min。
The redistribution of precipitation by canopy,its water hold- ing capacity and evaporation rate in Pinus tabulaeformis plantation of 28 years old have been studied in the paper.The results of study showed that the intercepted amount in canopy occupied 17.4% of outside forest precip- itation,water holding capacity in canopy averaged 1.12mm,precipitation under canopy and the amount of stem-flow occupied 80.2% and 2.4% of outside forest precipitation respectively and the average evaporation rate is 0.18mm/min in first 1 min.
出处
《陕西林业科技》
北大核心
1993年第1期9-13,共5页
Shaanxi Forest Science and Technology
基金
国家自然科学基金
关键词
油松
人工林
林冠
降水
分配
Pinus tabulaeformis
Plantation
Interception in canopy
Water holding capacity of canopy
Stem-flow
