干旱区生态环境知识资源中心(Arid): 耕作对旱区坡耕地土壤碳素转化及冬小麦产量的影响

Arid

	耕作对旱区坡耕地土壤碳素转化及冬小麦产量的影响
其他题名	Effects of Different Tillages on Soil Organic Carbon, Soil Microbial Biomass Carbon and Water Use Efficiency in the Slopping Field of Arid Areas
	张洁 1; 姚宇卿 1; 吕军杰 1; 王育红 1; 金轲 2; 王聪慧 1; 胡博文 3; 李俊红 1; 丁志强 1
ISSN	0564-3945
出版年	2007
卷号	38 期号:5 页码:882-886
中文摘要	利用长期定位试验(1999开始保护性耕作,2004年采样测定),在豫西旱区坡耕地上进行了不同耕作对土壤有机碳、微生物态碳及水分利用效率的影响研究.结果表明:深松覆盖和免耕覆盖处理的耕层有机碳增加较明显,以深松覆盖有机碳含量最高为6.79g ks~(-1),比传统耕作高13.82%,其次是免耕,较传统高11.58%,而少耕却较传统降低了1.38%,随着土层的加深,土壤有机碳含量降低,0～60cm有机碳平均值,深松和免耕较传统分别增加了14.08%、5.41%,少耕较传统减少1.12%.土壤微生物碳对耕作敏感,其含量免耕>深松>传统>少耕,分别为206.87mg kg~(-1)、138.43mg kg~(-1)、115.42mg kg~(-1)和1 12.57mg kg~(-1),较传统增加79.3%、19.9%和-2.5%.土壤有机碳和土壤微生物态碳都有坡下富集现象.少耕、免耕、深松和传统的SMBC/SOC的值分别为1.91%、3.11%、2.04%和1.93%.免耕和深松对培肥地力、改善环境有好的应用前景;同时免耕覆盖与深松覆盖可提高产量,增产分别达10.22%与9.26%;可提高水分利用效率.
英文摘要	The effects of different tillages on the soil organic carbon(SOC),Soil microbial Biomass Carbon (SMBC) and Water Use Efficiency (WUE) in long-term locating field plots has been investigated in the slopping field of the semi-humid arid areas ,the west of Henan Province. The results showed as following the treatments with subsoiling tillage and no-till increased the SOC contents,especially in cultivated herizon,The most increase in SOC content was 6.79g kg~(-1) in subsoiling treatment. Comparing with conventional tillage,the SOC contents in subsoiling mulching and no-tillage increased by 13.82% and 11.58%.,but reduced tillage decreased by 1.38%. The average SOC contents in 0～60cm of the subsoiling and no-tillage increased by 14.08% and 5.41% respectively,but reduced tillage reduced by 1.12%.The deeper the layer was,the lower the SOC content did. The order of contents of SMBC was: no-tillage > subsoiling > conventional tillage >reduced tillage The rates of SMBC/SOC in reduced tillage,no-tillage,subsoiling and conventional tillage were 1.91%,3.11%,2.04% and 1.93% respectively. The no-tillage mulch and subsoiling mulch had higher productivity (10.22% and 9.26%) and WUE.
中文关键词	有机碳 ; 微生物态碳 ; 水分利用效率 ; 保护性耕作 ; 坡耕地
英文关键词	Soil organic carbon(SOC) Soil microbial Biomass Carbon(SMBC) Water Use Efficiency Conservational tillage Slopingfield
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:2928407
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/221556
作者单位	1.洛阳农业科学研究所, 洛阳, 河南 471022, 中国; 2.中国农科院,农业资源与区划所, 北京 100081, 中国; 3.安阳北关区农委, 安阳, 河南 455000, 中国
推荐引用方式 GB/T 7714	张洁,姚宇卿,吕军杰,等. 耕作对旱区坡耕地土壤碳素转化及冬小麦产量的影响[J],2007,38(5):882-886.
APA	张洁.,姚宇卿.,吕军杰.,王育红.,金轲.,...&丁志强.(2007).耕作对旱区坡耕地土壤碳素转化及冬小麦产量的影响.,38(5),882-886.
MLA	张洁,et al."耕作对旱区坡耕地土壤碳素转化及冬小麦产量的影响".38.5(2007):882-886.