期刊论文

中文

中国农学通报

1000-6850

2012

28

13

6-13

10.3969/j.issn.1000-6850.2012.13.002

国家重点基础研究发展计划“973计划”专题（2010CB833504-X）； 国家林业局948项目（2010-4-03）； 教育部新世纪优秀人才支持计划（NCET-06-0715）； 湖南省“芙蓉学者计划”；

本校为第一机构

为了探讨森林地表N2O通量特征,在湖南省大山冲森林公园选取4种典型的亚热带森林类型：杉木人工纯林（CL）、马尾松-石栎-南酸枣针阔混交林（PM）、南酸枣-豹皮樟-四川山矾-台湾冬青阔叶混交林（CA）、青冈-石栎-马尾松-南酸枣常绿阔叶林（CG）,采用静态暗箱-气相色谱法测定4种森林类型的地表N2O通量,研究亚热带地区典型森林类型土壤N2O通量在生长季的变化特征。结果表明：在生长季除南酸枣-石栎林表现为N2O的汇外[-27.21μg/（m^2·h）],其余3种林分地表通量均表现为N2O的源,平均通量按从大到小的顺序为：马尾松-石栎林[34.61μg/（m^2·h）]〉杉木纯林[30.48μg/（m^2·h）]〉青冈林-石栎[5.82...

Forest ecosystems, being a possibility of an important source in emission of N2O, were rarely studied, especially in subtropical soil N2O emissions from a variety of forest types. This study site was located at Dashanchong Forest Park, being about 50 km away from Changsha City, Hunan Province and one of typical subtropical region of south China, which was the main distribution area of broad-leaved evergreen forests. Using the enclosed chamber technique, soil N2O emissions from a variety of forest types were measured once a month for a year. And...