%0 Journal Article
%T Canopy interception of sub-alpine dark coniferous communities in western Sichuan, China<br>川西亚高山不同暗针叶林群落类型的冠层降水截留特征
%A L Yu-liang
%A LIU Shi-rong
%A SUN Peng-sen
%A LIU Xing-liang
%A ZHANG Rui-pu
%A <br>吕瑜良
%A 刘世荣
%A 孙鹏森
%A 刘兴良
%A 张瑞蒲
%J 应用生态学报
%D 2007
%I 
%X Based on field measurements of throughfall and stemflow in combination with climatic data collected from the meteorological station adjacent to the studied sub-alpine dark coniferous forest in Wolong,Sichuan Province,canopy interception of sub-alpine dark coniferous forests was analyzed and modeled at both stand scale and catchment scale.The results showed that monthly interception rate of Fargesia nitida,Bashania fangiana-Abies faxoniana old-growth ranged from 33% to 72%,with the average of 48%.In growing season,there was a linear or powerful or exponential relationship between rainfall and interception and a negative exponential relationship between rainfall and interception rate.The mean maximum canopy interception by the vegetation in the catchment of 1.44 km2 was 1.74 mm and the significant differences among the five communities occurred in the following sequence:Moss-Fargesia nitida,Bashania fangiana-A.faxoniana stand>Grass-F.nitida,B.fangiana-A.faxoniana stand>Moss-Rhododendron spp.-A.faxoniana stand>Grass-Rh.spp.-A.faxoniana stand > Rh.spp.shrub.In addition,a close linear relationship existed between leaf area index(LAI)and maximum canopy interception.The simulated value of canopy interception rate,maximum canopy interception rate and addition interception rate of the vegetation in the catchment were 39%,25% and 14%,respectively.Simulation of the canopy interception model was better at the overall growing season scale,that the mean relative error was 9%-14%.
%K sub-alpine
%K dark coniferous forest
%K canopy interception
%K forest hydrology<br>亚高山
%K 暗针叶林
%K 冠层截留
%K 森林水文
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=DB0102F3D87A1711D51EF5EA20DD7619&yid=A732AF04DDA03BB3&vid=13553B2D12F347E8&iid=708DD6B15D2464E8&sid=5660F24F46E4A7B7&eid=AAC7B2D4995BA8E4&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=1&reference_num=40