干旱区生态环境知识资源中心(Arid): 模拟增温增雨对典型草原土壤酶活性的影响

Arid

	模拟增温增雨对典型草原土壤酶活性的影响
其他题名	Effects of Simulated Temperature and Precipitation Increase on Soil Enzyme Activity in Typical Steppe
	钞然; 张东; 陈雅丽; 万志强; 高清竹; 包铁军; 杨劼
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2018
卷号	35 期号:5 页码:1068-1074
中文摘要	气候变化对生态系统的影响呈增加趋势。土壤酶作为草地土壤中活跃的组分之一,与草地土壤养分含量关系密切。为探究半干旱地区酶活性及土壤养分对气候变化的响应,利用开顶式生长室于2011-2016年在典型草原进行模拟增温增雨试验。结果表明: ①增温使0 ~ 10 cm土层的硝态氮和铵态氮含量分别增加40. 2%和129. 1%,增雨使硝态氮含量增加63. 5%,铵态氮含量降低63. 6%。②土层的增温使0 ~ 10 cm土层的过氧化氢酶活性和蔗糖酶活性分别降低4. 8%和13. 3%。与增温的效果相反,增雨使碱性磷酸酶活性、蔗糖酶活性和脲酶活性分别提高7. 1%、35. 7%和14. 9%,对过氧化氢酶无显著影响(P > 0. 05) 。③ 0 ~ 10 cm土层的硝态氮和铵态氮含量有增加趋势(P < 0. 05),不同种类的土壤酶活性对气候变化的响应存在差异,这可能与气候变化趋势下土壤养分循环的变化有关。
英文摘要	The impacts of climate change on ecosystems will be expanded in the future. Soil enzyme is one of the active components in grassland soil,and it is closely related to soil nutrient content. In this study, the top-opened growth chambers were used to simulate the temperature increase and rainfall increase in a typical steppe in 2011 so as to explore the response of soil nutrient content and enzyme activity to climate change in semiarid area. The experiment was carried out under four treatments, there are CK (controlled),T (temperature controlled),P (rainfall increased) and TP(both temperature and rainfall increased) respectively. The values of soil nutrient availability and of activity of four enzymes were measured. It was found that the contents of soil nitrate nitrogen and ammonium nitrogen were increased by 40. 2% and 129. 1% respectively by increasing temperature. The nitrate nitrogen content was increased by 63. 5% by increasing rainfall,but the ammonium nitrogen content was decreased by 63. 6%. The activities of catalase and sucrose enzyme were decreased by 4. 8% and 13. 3% respectively by increasing temperature. Contrarily, the activities of alkaline phosphatase, sucrose enzyme and urease were increased by 7. 1%,35. 7% and 14. 9% respectively by increasing rainfall,but there was no significant effect of rainfall increase on catalase (P > 0. 05). The contents of nitrate nitrogen and ammonium nitrogen were in an increase trend under the interaction of both temperature increase and rainfall increase (P < 0. 05). The responses of four soil enzyme activities to climate change were different,which may be related to the change of nutrient cycling with climate change.
中文关键词	气候变化 ; 典型草原 ; 土壤养分 ; 土壤酶活性 ; 增温增雨 ; 内蒙古
英文关键词	climate change typical steppe soil nutrient soil enzyme activity increase temperature and precipitation Inner Mongolia
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:6334384
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/378935
作者单位	钞然, 内蒙古大学生态与环境学院;;中国农业科学院农业环境与可持续发展研究所, ;;, 呼和浩特;;, 内蒙古;;北京 010021;;100081, 中国.; 张东, 内蒙古大学生态与环境学院;;中国农业科学院农业环境与可持续发展研究所, ;;, 呼和浩特;;, 内蒙古;;北京 010021;;100081, 中国.; 陈雅丽, 内蒙古大学生态与环境学院;;中国农业科学院农业环境与可持续发展研究所, ;;, 呼和浩特;;, 内蒙古;;北京 010021;;100081, 中国.; 万志强, 内蒙古大学生态与环境学院;;中国农业科学院农业环境与可持续发展研究所, ;;, 呼和浩特;;, 内蒙古;;北京 010021;;100081, 中国.; 高清竹, 中国农业科学院农业环境与可持续发展研究所, 北京 100081, 中国.; 包铁军, 内蒙古大学生态与环境学院, 呼和浩特, 内蒙古 010021, 中国.; 杨劼, 内蒙古大学生态与环境学院, 呼和浩特, 内蒙古 010021, 中国.
推荐引用方式 GB/T 7714	钞然,张东,陈雅丽,等. 模拟增温增雨对典型草原土壤酶活性的影响[J],2018,35(5):1068-1074.
APA	钞然.,张东.,陈雅丽.,万志强.,高清竹.,...&杨劼.(2018).模拟增温增雨对典型草原土壤酶活性的影响.干旱区研究,35(5),1068-1074.
MLA	钞然,et al."模拟增温增雨对典型草原土壤酶活性的影响".干旱区研究 35.5(2018):1068-1074.