应用生态学报2013，Vol.24Issue(4)：1063-1069,7.
高效经营雷竹林生态系统能量通量过程及闭合度
Energy flux and energy balance closure of intensively managed Lei bamboo forest ecosystem
摘要
Abstract
By using open-path eddy covariance system and meteorological instruments, an observation was conducted on the sensitive heat flux, latent heat flux, net radiation, soil heat flux, air temperature, ground temperature, and precipitation in a intensively managed Lei bamboo forest ecosystem in 2011, with the diurnal and monthly variations of energy flux as well as the distribution pattern of each energy component analyzed, and the Bowen ratio and energy balance closure calculated. The yearly net radiation of the forest ecosystem was 2928. 92 MJ· m-1 , and the latent heat flux, sensitive heat flux, and soil heat flux were 1384. 90, 927. 54, and -28. 27 MJ· m-2, respectively. Both the daily and the monthly variations of the energy components showed a single peak curve. The sensible and latent heat fluxes were 31.7% and 47. 3% of the net radiation, respectively, indicating that latent heat flux was the main form of energy loss. The Bowen ratio followed the "U"-shaped pattern, and fluctuated from 0. 285 to 2. 062, suggesting that soil was a heat source. The yearly energy balance closure of the forest ecosystem was 0. 782, and the monthly average was 0.808.关键词
雷竹林/高效经营/能量通量/能量闭合度/波文比Key words
Lei bamboo forest/ intensive management/ energy flux/ energy balance closure/ Bow-en ratio分类
农业科技引用本文复制引用
陈云飞,江洪,周国模,孙成,陈健..高效经营雷竹林生态系统能量通量过程及闭合度[J].应用生态学报,2013,24(4):1063-1069,7.基金项目
国家自然科学基金重点项目(61190114)、国家重点基础研究发展计划项目(2011CB302705,2011 CB302705,2010CB950702,2010CB428503)、国家自然科学基金项目(41171324)、浙江省重点科技创新团队项目(2010R50030)和浙江农林大学研究生科研创新基金项目(3122013240142)资助. （61190114）
