%0 Journal Article
%T Responses of subalpine Betula albo-sinensis soil invertase activity to elevated atmospheric temperature and CO2 concentration in Western Sichuan<br>川西亚高山红桦幼苗土壤蔗糖酶活性对温度和大气二氧化碳浓度升高的响应
%A WU Xiu-chen
%A SUN Hui
%A YANG Wan-qin
%A WANG Kai-yun
%A <br>吴秀臣
%A 孙辉
%A 杨万勤
%A 王开运
%J 应用生态学报
%D 2007
%I 
%X Taking the soil planted with subalpine Betula albo-sinensis seedlings in Western Sichuan as test object, this paper studied the responses of its invertase activity to elevated temperature (ET), elevated atmospheric CO2 concentration (EC), and their combination (ETC). The results indicated that ET increased the soil invertase activity to a certain extent, being significant in May, June, September and October. EC also had a significant positive effect on the enzyme activity from May to October (P<0.05), which was higher in rhizosphere than in non-rhizosphere soil, and in those planted with high density B. albo-sinensis. The responses of soil invertase activity to ETC and shading differed with month, planting density of B. albo-sinensis, and distribution pattern of the enzyme.
%K invertase activity
%K temperature
%K atmospheric CO2 concentration
%K soil microorganism
%K Betula albo-sinensis<br>蔗糖酶活性
%K 温度
%K 大气CO2浓度
%K 土壤微生物
%K 红桦
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=C09BB2BF0FB8AD57&yid=A732AF04DDA03BB3&vid=13553B2D12F347E8&iid=B31275AF3241DB2D&sid=7D257F36093061DE&eid=2C05A9EACD668BFF&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=0&reference_num=31