Effects of rainfall interception of different forest communities in the Simian Mountain,Chongqing
MA Hui-； Zhang-Hong-Jiang-； Wang-Wei-； Du-Shi-Cai-； Li-Gen-Beng
1.College of Soil and Water Conservation,Beijing Forestry University 100083,Beijing;2.Chongqing Municipal Forestry Bureau,401147,Chongqing;3.Jiangjin Area Municipal Forestry Bureau,402260,Chongqing:China
Abstract： This paper studies the difference of canopy interception of different forest types by surveying the maximum water holding capacity,interception rate of canopy of 6 different vegetation types,(temperate coniferous forest,warm coniferous forest,deciduous broadleaved forest,evergreen and deciduous broad-leaved mixed forest,evergreen broadleaved forest and warm bamboo forest)in Simian Mountain of Chongqing.Results can be concluded as follows: 1) compared with that of other 4 types of vegetation types,the maximum water holding capacity,interception rate of canopy of temperate coniferous forest and warm coniferous forest is higher,which presents strong function of canopy interception.2) main factors impacting the maximum water holding capacity are canopy density and mass of leaf and branch per unit area,and there is a significant positive correlation between them.3) the main factors that impacts the canopy interception rate are amount and intensity of rainfall and drying degree of leaf and branch of canopy.Dryness of leaf and branch of canopy has obvious effect on canopy interception of different forest types.
2010, Vol. 8 
