干旱区生态环境知识资源中心(Arid): 不同耕作制度下荒漠绿洲棉田土壤水分的时空变化

Arid

	不同耕作制度下荒漠绿洲棉田土壤水分的时空变化
其他题名	Spatiotemporal Variation of Soil Water in a Cotton Field with Different Tillage Modes in Oasis
	吕双庆; 郑德明; 柳维杨; 姜益娟
ISSN	1000-288X
出版年	2009
卷号	29 期号:1 页码:51-55
中文摘要	通过田间试验研究了不同耕作制度荒漠绿洲棉田土壤水分的时空变化.结果表明,0-120 cm土层免耕覆盖土壤容积含水量最高,免耕留茬次之,传统耕作和耕作覆膜最低.0-20 cm土层,免耕覆盖和免耕留茬土壤含水量高于传统耕作和耕作覆膜,0-5 cm差异最大,但随着深度增加差异减小,20-120 cm差异不大.传统耕作、耕作覆膜、免耕留茬棉田表层与底层土壤水分梯度明显,免耕覆盖不明显.头水前不同耕作方式棉田0-120 cm土壤含水量都随时间延长逐渐降低,前期免耕覆盖和免耕留茬与传统耕作和耕作覆膜差异较大,后期差异变小;头水后,免耕覆盖、免耕留茬高于耕作棉田.免耕覆盖和耕作覆膜棉田表层土壤水分状况比较稳定,免耕留茬和传统耕作变化幅度较大.
英文摘要	A field experiment was conducted to study the spatiotemporal variation of soil moisture in an oasis cotton field with different tillage modes. Results showed that in 0-120 cm soil layer, the maximum soil moisture content was observed for no-tillage with mulching stalk; the medium, for no-tillage with standing stubble; and the minimum, for conventional tillage and tillage with film mulching. Soil moisture contents for no-tillage with mulching stalk and no-tillage with standing stubble were higher than those for conventional tillage and tillage with film mulching in 0-20 cm soil layer, being significantly different in 0-5 cm soil layer and no difference in 20-120 cm soil layer. There was an obvious gradient of soil moisture content in the depths for the three tillage modes. Soil moisture contents for the three tillage modes decreased significantly with time before irrigation. The difference between no-tillage and tillage was greater at the early stage than the later stage. High soil moisture content was observed in tilled field after irrigation. Soil moisture in top soil layer was steady for no-tillage with mulching stalk and tillage with film mulching and remarkably varied for no conventional tillage and no-tillage with standing stubble.
中文关键词	免耕 ; 土壤水分 ; 绿洲棉田
英文关键词	no-tillage soil moisture oasis cotton field
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:3562273
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/224156
作者单位	新疆塔里木大学,植物科技学院, 阿拉尔, 新疆 843300, 中国
推荐引用方式 GB/T 7714	吕双庆,郑德明,柳维杨,等. 不同耕作制度下荒漠绿洲棉田土壤水分的时空变化[J],2009,29(1):51-55.
APA	吕双庆,郑德明,柳维杨,&姜益娟.(2009).不同耕作制度下荒漠绿洲棉田土壤水分的时空变化.,29(1),51-55.
MLA	吕双庆,et al."不同耕作制度下荒漠绿洲棉田土壤水分的时空变化".29.1(2009):51-55.