灌溉排水学报2013，Vol.32Issue(5)：107-109,136,4.DOI:10.7631/j.issn.1672-3317.2013.05.026
西北旱区葡萄园CO2净交换量变化规律
The Variation of Vineyard Net CO2 Exchange under Different Conditions in Northwest Arid
摘要
Abstract
The change of orchard ecosystem net CO2 exchange capacity (NEE) was analyzed according to the measurement of carbon flux in a wine vineyard,northwest arid of China in 2008-2010 using the eddy covariance system.The results showed that diurnal vineyards NEE in sunny day changed with "W" curve,while it changed with "U" curve in cloudy day.Irrigation andpruning had no effect on the shape of diurnal variation of NEE,but the difference between peak and valley after irrigation was significantly less than that before irrigation,and pruning would reduce the carbon sink capacity.Vineyard NEE was positive at early childbearing,at medium-term of growth it was significantly negative,and at final of growth carbon sink capacity began to decline.关键词
西北旱区/葡萄园/NEE/涡度相关Key words
northwest arid/ vineyards/ NEE/ eddy covariance分类
农业科技引用本文复制引用
郭维华,高云..西北旱区葡萄园CO2净交换量变化规律[J].灌溉排水学报,2013,32(5):107-109,136,4.基金项目
国家自然科学基金重点项目(50939005) （50939005）
西北干旱区典型经济作物碳通量变化规律及模型模拟(2012YJ120) （2012YJ120）
