干旱区生态环境知识资源中心(Arid): 贺兰山西坡不同类型草地土壤酶活性特征

Arid

	贺兰山西坡不同类型草地土壤酶活性特征
其他题名	Characteristics of Soil Enzyme Activities in Different Grasslands in the Western Slope of the Helan Mountain,China
	秦燕 1; 牛得草 1; 康健 1; 曹格图 2; 张斯莲 3; 傅华 1
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2012
卷号	29 期号:5 页码:870-877
中文摘要	以阿拉善左旗境内贺兰山中段(西坡)山前地带的主要草地类型为对象,分析不同类型草地土壤酶活性的分布特征,及其与气候、植被和土壤等环境因子的关系。结果表明:①随着海拔高度的降低,土壤脲酶、蔗糖酶、碱性磷酸酶和过氧化氢酶活性表现为:高山草甸>山地草原>山地荒漠草原>草原化荒漠,且在0~10 cm土层的差异尤其显著;②各类草地土壤酶活性均沿土壤垂直剖面依次降低,差异呈显著性水平;③偏相关及逐步回归分析表明,影响该区草地土壤脲酶和蔗糖酶活性最主要的因素为土壤微生物碳氮、有机碳和全氮,碱性磷酸酶主要受土壤微生物碳和全氮影响,对过氧化氢酶影响最大的因子为土壤微生物碳、pH、全氮和降水量。
英文摘要	Soil enzymes are the specific biological catalysts for biochemical reaction in soil,and one of the indicators of evaluating soil health.This study was conducted at the grasslands in the western slope of the Helan Mountain and its piedmont in Alxa,Inner Mongolia,China.With measuring the distribution characteristics of soil enzyme activities,the relationships between soil enzyme activities and soil,vegetation and climatic factors were studied.The results are as follows:(1) Soil enzyme activities were decreased with the decrease of altitude and in an order of alpine meadow > mountain steppe > mountain desert steppe > steppe desert,and the difference was significant in topsoil(0-10 cm in depth);(2) Soil enzyme activities were decreased with the increase of soil depth;(3) According to the partial correlation and stepwise regression analysis,the main factors affecting the activities of soil urease and saccharase were soil microbial biomass carbon,soil organic carbon and total nitrogen,soil alkaline phosphatase activity was mainly affected by soil microbial biomass carbon and total nitrogen,and soil catalase activity was mainly affected by soil microbial biomass,total nitrogen,pH value and precipitation.
中文关键词	草地类型 ; 土壤酶 ; 海拔高度 ; 土壤微生物 ; 贺兰山 ; 阿拉善
英文关键词	grasslands soil enzyme activity altitude soil microbe Helan Mountain Alxa
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:4634183
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/228064
作者单位	1.兰州大学草地农业科技学院, 草地农业生态系统国家重点实验室, 兰州, 甘肃 730020, 中国; 2.内蒙古阿拉善盟草原总站, 巴彦浩特, 内蒙古 750306, 中国; 3.内蒙古阿拉善盟气象局, 巴彦浩特, 内蒙古 750306, 中国
推荐引用方式 GB/T 7714	秦燕,牛得草,康健,等. 贺兰山西坡不同类型草地土壤酶活性特征[J]. 兰州大学,2012,29(5):870-877.
APA	秦燕,牛得草,康健,曹格图,张斯莲,&傅华.(2012).贺兰山西坡不同类型草地土壤酶活性特征.干旱区研究,29(5),870-877.
MLA	秦燕,et al."贺兰山西坡不同类型草地土壤酶活性特征".干旱区研究 29.5(2012):870-877.