文献类型：会议论文

英文题名：Soil respiration and its controlling factors in six coastal young monoculture plantations

作者：Cheng, Xiangrong[1] Yu, Mukui[1] Wu, Tonggui[1] Wang, Zongxing[2]

第一作者：成向荣

通信作者：Cheng, XR[1]

机构：[1]Chinese Acad Forestry, Res Inst Subtrop Forestry, Fuyang 311400, Zhejiang, Peoples R China;[2]Zhejiang Forest Technol Popularizat Stn, Zhejiang 310020, Peoples R China

会议论文集：2nd International Conference on Energy and Environmental Protection (ICEEP 2013)

会议日期：APR 19-21, 2013

会议地点：Guilin, PEOPLES R CHINA

语种：英文

外文关键词：soil respiration; canopy structure; forest microclimate; soil nutrients; carbon cycle

年份：2013

摘要：Biotic and abiotic factors how to influence soil respiration in different young monoculture plantations are not clearly understood. Soil respiration and its controlling factors were studied in six monoculture plantations in the coastal area of Shanghai, China. Soil respiration was significant difference among six stands. Variations of soil respiration in six plots were not directly related to changes in soil water content, but significant relationship was observed between soil respiration and soil temperature. The variation of soil respiration was firmly correlated to the variation of leaf area index (LAI) or gap fraction (GF), soil respiration enhanced with the increase of GF (or decreasing LAI). The microclimate within forest and soil temperature also had positively correlation with soil respiration, but which mainly were affected by GF or LAI. There was no significant relationship between soil respiration and either root biomass or soil nutrients.