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对天宝岩国家级自然保护区3种典型森林类型内粗死木质残体(CWD)的持水量进行研究。结果表明,柳杉(Crytomeria fortunei)林内CWD的持水量最低;不同森林类型各类CWD的水分蓄持能力不同,猴头杜鹃(Rhododendron simiarum)林内以倒木>枯立木>树桩,长苞铁杉(Tsuga longibracteata)林和柳杉林内为枯立木>倒木>树桩;CWD有效持水量和自然含水率随CWD腐烂程度增加呈上升趋势。
The water holding capacity of coarse dead woody debris (CWD) in three typical forest types in Tianbaoyan National Nature Reserve was studied. The results showed that the water holding capacity of CWD in Crytomeria fortunei forest was the lowest. The CWD of different forest types had different water storage capacity. In Rhododendron simiarum forest, Tsuga longibracteata) stands in the forest and Cryptomeria fortunei as standing wood> fallen wood> stumps; CWD effective water holding capacity and natural water content increase with the increase of CWD rot.