CHENG Chen,WANG Yu-jie,PAN Yu-juan,et al.A Comparative Study on Water Conservation Capacity of Five Main Forest Types in Three Gorges Reservoir Area in China[J].Research of Soil and Water Conservation,2007,14(02):215-217.
长江三峡库区不同森林类型涵养水源能力比较研究
- Title:
- A Comparative Study on Water Conservation Capacity of Five Main Forest Types in Three Gorges Reservoir Area in China
- 分类号:
- S715
- 摘要:
- 从林冠层、枯落物层及土壤层3个生态作用层次对缙云山自然保护区4种主要森林类型的涵养水源功能进行了定量研究。结果表明：林内透雨量、树干径流量与降雨量、降雨强度呈二元线性关系。林冠截留率为16.91%~67.84%，平均为38.19%，依次为针阔混交林>阔叶林>楠竹林；枯落物储量为16.21~32.42 t/hm2，平均为20.69 t/hm2，依次为灌木林>阔叶林>针阔混交林>楠竹林；各种森林生态系统能够截留的降雨量总量为450.3~686.3 t/hm2，针阔混交林的涵养水源功能最好，阔叶林、楠竹林次之，灌木林最小。
- Abstract:
- Based on the data from fixed sample plots of main forest types in Jinyun Mountain in Chongqing City, water conservation capacity were studied. The results showed that there is a binary linear regression for both through fall and stem flow to precipitation quantity and precipitation intensity. The relative interception ranges from 16.91% to 67.84% on an average of 38.19%. Under the same rainfall the decrease order of canopy interception in the different forest types is coniferous and broad-leaved mixed forest, broadleaf forest, bamboo forest. The biomass of litter layer in different forest ecosystems varies from 16.21 to 32.42 t/hm2 on an average of 20.69 t/hm2 and the decrease order of the biomass is shrubbery, broadleaf forest, coniferous and broad-leaved mixed forest, bamboo forest. The total interception of rainfall in different forest ecosystems varies from 450.3 to 686.3 t/hm2 the decrease order is coniferous and broad-leaved mixed forest, broadleaf forest, bamboo forest, shrubbery.
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备注/Memo
收稿日期:2006-5-10
基金项目:国家“十五”科技攻关课题“退耕还林工程区水源涵养型植被建设技术研究与示范”（2001BA510B02-01）；国家林业局长江三峡库区（重庆）森林生态站（98J-01-11）
作者简介:成晨（1981- ），男，山西孝义人，硕士研究生；主要研究方向为流域管理。
通讯作者:王玉杰（1960- ），教授，主要研究方向：土壤侵蚀，林业生态工程。