干旱区生态环境知识资源中心(Arid): 荒漠草原不同退化阶段土壤微生物、土壤养分及酶活性的研究

Arid

	荒漠草原不同退化阶段土壤微生物、土壤养分及酶活性的研究
其他题名	Microorganisms,Soil Nutrient and Enzyme Activity Changing with the Proceeding of Desert Steppe Degradation in Inner Mongolia
	吕桂芬; 吴永胜; 李浩; 马万里; 卢萍
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2010
卷号	30 期号:1 页码:104-109
中文摘要	对我国荒漠草原生态系统不同退化阶段土壤微生物数量、微生物生物量、土壤养分及土壤酶活性进行研究.结果表明,随着草原退化程度加剧,土壤微生物数量、微生物生物量、土壤养分及土壤酶活性均表现出不同程度的变化.其中,土壤微生物数量、生物量和土壤酶活性随退化程度的加剧而有递减的趋势,各项值在总体上呈现出轻度退化>中度退化>重度退化;土壤养分中除了土壤钾含量无明显的规律性变化外,其他含量表现出轻度退化>中度退化>重度退化的趋势;研究认为,荒漠草原的退化明显影响到土壤微生物的数量、生物量、土壤养分及土壤酶活性,土壤微生物对草原退化有响应.同时,相关性研究表明,土壤微生物数量、土壤养分和土壤生物活性之间呈较好的相关关系,这些指标可作为评价土壤肥力的有效指标.
英文摘要	Soil microbial quantities,microbial biomass C,nutrition,and enzyme activity of desert steppe ecosystem in different degeneration phases were studied in this paper. The results showed: with the expansion of desert steppe degeneration degree,the soil microbial quantities,microbial biomass C,nutrition and enzyme activity changed at different degree. Among them the soil microbial quantities,microbial biomass C and enzyme activity appeared a tendency of descendent with the proceeding of desert steppe degradation,each index showed as follows: lightly degenerated > middle degenerated > heavily degenerated;so did soil nutrition except soil total Potassium which appeared unobvious regulative change. The results indicated that the degradation of desert steppe had a significant influence on the soil microbial quantities,microbial biomass C,nutrition and enzyme activity,and the soil microorganism had response to the degeneration of grassland. Meanwhile,the result of correlation analysis indicated that there were significant correlation among soil microbial quantities,soil microbial biomass C,soil nutrition,and soil enzyme activity,and these indexes could be deemed as the effective evidence to assess the soil fertility.
中文关键词	荒漠草原 ; 土壤养分 ; 微生物 ; 酶活性
英文关键词	desert steppe soil nutrition microorganism enzyme activity
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:3821777
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/225945
作者单位	内蒙古师范大学,生命科学与技术学院,生物多样性保护研究中心, 呼和浩特, 内蒙古 010022, 中国
推荐引用方式 GB/T 7714	吕桂芬,吴永胜,李浩,等. 荒漠草原不同退化阶段土壤微生物、土壤养分及酶活性的研究[J],2010,30(1):104-109.
APA	吕桂芬,吴永胜,李浩,马万里,&卢萍.(2010).荒漠草原不同退化阶段土壤微生物、土壤养分及酶活性的研究.中国沙漠,30(1),104-109.
MLA	吕桂芬,et al."荒漠草原不同退化阶段土壤微生物、土壤养分及酶活性的研究".中国沙漠 30.1(2010):104-109.