亚热带常绿阔叶林的水文生态特征

被引:17
作者
徐小牛 [1 ]
王勤 [1 ]
平田永二 [2 ]
机构
[1] 安徽农业大学林学与园林学院
[2] 琉球大学农学部
基金
日本学术振兴会;
关键词
水文生态效应; 降雨分配; 径流; 亚热带林; 台风降雨;
D O I
10.13287/j.1001-9332.2006.0311
中图分类号
S715 [森林水文学];
学科分类号
0829 ; 0907 ;
摘要
对日本冲绳岛亚热带天然次生常绿阔叶林的水文生态特性进行了为期3年的定位观测.结果表明,观测期间年平均降雨量高达3325mm,台风降雨(包括直接和间接影响)占年降雨量的42.3%;穿透雨量和树干流量分别为年降雨量的53.9%和30.9%,较高的树干流量可能与高风速、强度降雨以及优势树种的树冠构造紧密相关.林冠截留损失占年降雨量的15.2%,低于世界范围内其它多数常绿阔叶林(15%30%).年平均地表径流和壤中流量分别是1092mm和613mm,分别占年降雨量的32.8%和18.4%;较高的径流量可能是由不良的土壤物理性质引起的.试验林土壤尤其是下层土壤非毛管孔隙度低(8%12%)、粘粒含量极高(51.9%60.5%),水分渗透缓慢(12ml.min-1).070cm土层的有效蓄水量和最大蓄水量分别为85mm和324mm,林地凋落物层的最大持水量为2.8mm,接近或低于中国亚热带和热带山地雨林.
引用
收藏
页码:1570 / 1574
页数:5
相关论文
共 7 条
[1]   Leaf litter decomposition and nutrient dynamics in a subtropical forest after typhoon disturbance [J].
Xu, XN ;
Hirata, E ;
Enoki, T ;
Tokashiki, Y .
PLANT ECOLOGY, 2004, 173 (02) :161-170
[2]  
Structure and species diversity of subtropical evergreen broad-leaved forest in northern Okinawa Island, Japan[J] . Xiaoniu Xu,Eiji Hirata,Yoshihiro Tokashiki,Takeo Shinohara.Journal of Forest Research . 2001 (3)
[3]  
Partitioning of rainfall into throughfall, stemflow and interception: effect of forest type, ground cover and climate[J] . R. H.Crockford,D. P.Richardson.Hydrol. Process. . 2000 (16‐)
[4]   Rainfall partitioning and related hydrochemical fluxes in a diverse and in a monospecific (Phenakospermum guyannense) secondary vegetation stand in eastern Amazonia [J].
Holscher, D ;
Sa, TDD ;
Moller, RF ;
Denich, M ;
Folster, H .
OECOLOGIA, 1998, 114 (02) :251-257
[5]  
Diversity of forest tree species in Yanbaru, the northern part of Okinawa Island[J] . Yosiaki It?.Plant Ecology . 1997 (2)
[6]  
Chemistry of bulk precipitation in southwestern Viti Levu, Fiji[J] . M. J. Waterloo,J. Schelleken,L. A. Bruijnzeel,H. F. Vugts,P. N. Assenberg,T. T. Rawaqa.Journal of Tropical Ecology . 1997 (3)
[7]  
Eco-hydrologicalFunctionsofForestEcosystemsinChina. 刘世荣,温远光[王兵]etal. ChinaForestryPress . 1996