干旱区生态环境知识资源中心(Arid): 秸秆还田对宁南旱作农田土壤活性有机碳及酶活性的影响

Arid

	秸秆还田对宁南旱作农田土壤活性有机碳及酶活性的影响
其他题名	Effects of Straw Returning on Soil Labile Organic Carbon and Enzyme Activity in Semi-arid Areas of Southern Ningxia, China
	路文涛 1; 贾志宽 1; 张鹏1 ; 王维 1; 侯贤清 1; 杨保平 1; 李永平 2
来源期刊	农业环境科学学报
ISSN	1672-2043
出版年	2011
卷号	30 期号:3 页码:522-528
中文摘要	在宁南旱区通过研究秸秆还田对土壤活性有机碳及酶活性的影响,旨在为该区作物生产及土壤培肥制度的建立提供参考.在为期3a秸秆还田定位试验中,设置了不同秸秆还田量处理,谷子秸秆按3 000 kg·hm~-2(低L)、6000 kg·hm~-2(中M)、9 000 kg·hm~-2 (高H)粉碎还田; 玉米秸秆按4 500 kg·hm~-2(低L)、9 000 kg·hm~-2(中M)、13500 kg·hm~-2(高H)粉碎还田,对照为秸秆不还田,对不同处理条件下的土壤有机碳、土壤酶活性及其相关性进行了分析.结果表明,土壤总有机碳、活性有机碳含量和土壤酶活性均随土层的加深而减少; 各处理0-60 cm土层土壤有机碳含量和酶活性大小为中、高量秸秆还田>低量秸秆还田>秸秆不还田; 秸秆还田不仅增加了土壤活性有机碳含量,同时提高了活性有机碳占总有机碳含量的比重.相关性分析表明,运用土壤活性有机碳和碳库管理指数表征土壤酶活性及土壤肥力变化,比土壤有机碳更具灵敏性.在宁南半旱区采用秸秆还田能有效提高土壤活性有机碳含量和土壤酶活性
英文摘要	The effects of straw returning treatments on soil labile organic carbon and enzyme activities was studied in semi-arid areas of Southem Ningxia for providing a scientific basis of crop production and soil fertilizing system. The different straw retuming treatments were 3000 kg·hm~-2(L),6 000 kg·hm~-2(M) and 9 000 kg·hm~-2(H) of millet straw and 4500 kg·hm~-2(L),9000 kg·hm~-2(M) and 13500 kg·hm~-2 (H) of corn straw, the CK had no straw retuming. The results of three years field experiment showed that in the third experiment year(2009), soil total organic carbon, labile organic carbon and soil enzyme activities decreased with deeper layer; different straw retuming treatments had different effects on the contents of soil organic carbon and enzyme activities of 0-60 cm soil layer, follow the’order from high to low : middle and high straw retuming treatments>low straw returning treatments>CK; straw returning treatment was not only increased the content of soil labile organic carbon, but also improved the proportion of the labile organic carbon accounting for the total organic carbori content. Correlation analysis revealed that soil labile organic carbon and carbon management index may b e a better indicator than soil organic matter used to reflect the changes of soil enzyme activities and soil nutrients. In semi-arid areas of Southem Ningxia, the content of soil labile organic carbon and enzyme activities could be improved efficiently by using of straw returning technology
中文关键词	秸秆还田 ; 宁南旱区 ; 活性有机碳 ; 土壤酶活性
英文关键词	straw retuming semi-arid areas of Southern N’ingxia labile organic carbon soil 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:4163008
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/226813
作者单位	1.西北农林科技大学中国旱区节水农业研究院, 农业部旱地作物生产与生态重点开放实验室, 杨凌, 陕西 712100, 中国; 2.西北农林科技大学中国旱区节水农业研究院, 杨凌, 陕西 712100, 中国
推荐引用方式 GB/T 7714	路文涛,贾志宽,张鹏,等. 秸秆还田对宁南旱作农田土壤活性有机碳及酶活性的影响[J]. 西北农林科技大学,2011,30(3):522-528.
APA	路文涛.,贾志宽.,张鹏.,王维.,侯贤清.,...&李永平.(2011).秸秆还田对宁南旱作农田土壤活性有机碳及酶活性的影响.农业环境科学学报,30(3),522-528.
MLA	路文涛,et al."秸秆还田对宁南旱作农田土壤活性有机碳及酶活性的影响".农业环境科学学报 30.3(2011):522-528.