南京林业大学学报（自然科学版）2011，Vol.35Issue(3)：43-48,6.DOI:10.3969/j.issn.1000-2006.2011.03.009
城市3种类型人工林土壤的呼吸动态特征
Seasonal variations of soil respiration in three different urban plantations in Nanjing
摘要
Abstract
Soil respiration was measured using Licor- 6400 -09 system in the three different urban plantations in Nanjing Forestry University, and its main regulating factors were also measured at the same time during October, 2007 to September, 2008. The three plantation types were Chinese tulip-tree, Chinese cedar and mixed plantation of cork oak, deodar cedar and black locust. The results showed that ( 1 ) The seasonal fluctuations of soil respiration rates were significant in Chinese tulip-tree, Chinese cedar and mixed plantation, and with maximum of 4. 74, 4. 09 and 4. 14 μmol/(m2·s) in summer, respectively, and minimum of 1.48,1.21 and 0. 85 μmol/( m2· s) in winter, respectively. (2) The annual mean of soil respiration rate was significantly different among three different plantations (p＜0.05). The order of the annual mean of soil respiration rate was: Chinese tulip-tree,mixed plantation, and Chinese cedar. (3) Soil respiration was significantly correlated to soil temperature and soil moisture. (4) The Q10 value was different between three plantations, and the Chinese cedar plantation had the largest Q1o value. The results provide theoretical basis for understanding of carbon cycle in urban plantation of this region.关键词
人工林/土壤呼吸/土壤温度/土壤含水率Key words
plantation forest/ soil respiration/ soil temperature/ soil moisture分类
农业科技引用本文复制引用
张鸽香,徐娇,王国兵,侯飞飞,阮宏华..城市3种类型人工林土壤的呼吸动态特征[J].南京林业大学学报（自然科学版）,2011,35(3):43-48,6.基金项目
国家自然科学基金项目(30670313) （30670313）
国家林业局林业公益性行业科研专项(200804006,200704005/wb02) （200804006,200704005/wb02）
