摘要
与云南松林、常绿阔叶林比较,对滇中区域桉树林的林冠层对降雨的再分配特点进行研究.结果表明,不同植被类型降雨再分配比率受到自身特性与环境影响较大.场降雨与连续降雨的降雨再分配比率不同;场降雨事件中,云南松林的林冠截留率较大;除云南松林在降雨量和雨强较小时,树干茎流比率较小,达到2.40%以外,穿透降雨和树干茎流的分配比率接近;连续降雨事件发生时,3种群落林冠截留、穿透降雨和树干茎流分配比率一致,穿透降雨量、茎流产生量与降雨量成正相关,林冠截留趋于恒值.
It was studied that the distribution ratio of three forest vegetation types （Eucalyptus robusta Smith,Pinus yunnanensis Franch and Evergreen Broad-leaved forest ） rainfall in Mid - Yunnan. The results showed that the distribution ratio affected by the different vegetation types and surroundings. During the individual and continuous rainfall have different distribution ratio, and Pinus yunrtanensis Franch canopy interception ratio more than another types. The penetrating precipitation ratio was close to the stem -flow ratio and reached 2. 40%, except the stem -flow ratio because of the rainfall and rainfall intensity smaller; When continuous rainfall happened, the ratio of canopy interception, penetrating precipitation and stem - flow＇ s uniformly, the penetrating precipitation and stem -flow positive correlation with the rainfall, and the canopy interception trends to constant.
出处
《云南大学学报（自然科学版）》
CAS
CSCD
北大核心
2009年第1期97-102,108,共7页
Journal of Yunnan University(Natural Sciences Edition)
基金
国家高科技发展计划“973”项目资助(2003CB415103)
教育部新世纪人才支持项目资助(NCET-04-0914)
云南省生态建设与可持续发展研究基地项目资助(2007JD-21)
关键词
滇中
降雨再分配
林冠截留
穿透降雨
茎流产生量
分配比率
Mid - Yunnan
rainfall redistribution
canopy interception
penetrating precipitation
stem - flow
distribution ratio
