热带亚热带植物学报Issue(1)：38-44,7.DOI:10.3969/j.issn.1005-3395.2014.01.007
我国亚热带毛竹林生长季能量通量过程及闭合度分析
Energy Flux and Energy Balance Closure Analysis of Phyllostachys edulis Forest in Subtropical China during Growing Season
摘要
Abstract
In order to understand the energy balance closure of Phyllostachys edulis forest in subtropical China during growing season, the changes in energy lfux of P. edulis forest were studied from April to September in 2011 by using open-path eddy covariance method, and the characteristics of energy closure were analyzed by using EBR (Energy balance ratio) and OLR (Ordinary linear regression). The results showed that total net radiation of the forest in growing season was 1738.2 MJ m-2, and the sensible lfux heat, latent heat lfux, and soil heat lfux were 354.3 MJ m-2, 1146.0 MJ m-2, and 58.9 MJ m-2, respectively. It was suggested that soil was a heat sink. The sensible and latent heat lfuxes were accounting for 20.4%and 65.9%of the net radiation, respectively. The enrgy balance closure of P. edulis forest in growing season was 0.89, and the monthly average was 0.91, but there was 11%of energy imclosure. Therefore, the latent heat lfux was the main form of energy loss. Diurnal variation in energy components all showed single peak curves based on net radiation, and energy closure was at high level.关键词
能量通量/能量闭合度/涡度相关法/毛竹林Key words
Energy lfux/Energy balance closure/Eddy covariance method/Phyllostachys edulis forest引用本文复制引用
孙成,江洪,陈云飞,刘玉莉,张金梦..我国亚热带毛竹林生长季能量通量过程及闭合度分析[J].热带亚热带植物学报,2014,(1):38-44,7.基金项目
国家自然科学重大基金项目(61190114) （61190114）
国家“973”重点基础研究发展规划项目(2011CB302705,2010CB950702,2010CB428503) （2011CB302705,2010CB950702,2010CB428503）
国家自然科学基金项目(41171324) （41171324）
科技部重大国际合作项目(20073819)资助 （20073819）
