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Soil Moisture Dynamics of Different Forest Types in Xiaolong Mountain Region in Gansu Province, China
Author(s): 
Pages: 51-54
Year: Issue:  1
Journal: Journal of Northeast Forestry University

Keyword:  Xiaolong Mountain regionForest typesSoil moisture dynamics;
Abstract: 以小陇山林区栎类阔叶混交林、锐齿栎林、日本落叶松林、油松林及无林地5种森林土壤为研究对象,通过2011年对9个样点土壤水分长期定位观测,研究不同森林类型土壤水分动态变化规律.结果表明:大气降水和蒸散量是引起土壤含水量变化的主要因素,土壤含水量季节性变化趋势十分明显;坡位对林区不同森林类型土壤含水量无显著影响;不同层次土壤含水量差异显著,土层深(H)O≤H<20 cm的土壤含水量变化较为剧烈,但总体上其含水量大于20 cm≤H<60 cm的土壤含水量;各个时期阔叶混交林、锐齿栎林土壤平均含水量较高,具有较强水土保持能力和显著水源涵养作用.
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