天宝岩3种典型森林类型CWD持水能力的比较  

The Water Holding Capacity of Coarse Woody Debris in Three Typical Forest Types in Tianbaoyan National Nature Reserve

作　　者：游惠明[1] 何东进[1] 刘进山 蔡昌棠 何小娟[1] 游巍斌[1] 朱乃新[1] 叶贤双[1] 王磊[1] 

机构地区：[1]福建农林大学,福州350002 [2]永安天宝岩国家级自然保护区,福建永安366032

出　　处：《热带亚热带植物学报》2010年第6期621-626,共6页Journal of Tropical and Subtropical Botany

基　　金：国家自然科学基金项目(30870435);国家级大学生创新性实验计划项目(091038905);中国博士后科学基金项目(20060390182);福建省自然科学基金项目(2008J0116)资助

摘　　要：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 natural moisture content and effective water holding capacity of coarse woody debris（CWD） in three typical forest ecosystems in Tianbaoyan National Nature Reserve were studied.The results showed that the water holding capacity of CWD was the lowest in the Crytomeria fortunei forest;the water holding capacity was in order as fallen treesnagsstumps in Rhododendron simiarum forest,and snagsfallen treestumps in Tsuga longibracteata and Crytomeria fortunei forests.The effective moisture holding capacity of CWD increased with decay class of CWD increment,as well as the natural moisture content of CWD.

关 键 词：天宝岩国家级自然保护区 粗死木质残体 自然持水量 有效持水量 自然含水率 

分 类 号：S714.7[农业科学—林学]