干旱区生态环境知识资源中心(Arid): 成垄压实耕作条件下土壤水分分布的试验研究

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	成垄压实耕作条件下土壤水分分布的试验研究
其他题名	Experimental Study on Soil Water Distribution under Locally Compacted Ridge-Furrow Cultivation
	佘冬立; 邵明安
来源期刊	水土保持学报
ISSN	1009-2242
出版年	2007
卷号	21 期号:5 页码:110-
中文摘要	利用野外模拟降雨试验,研究了不同垄沟(自然垄沟、盖膜垄沟、成垄压实)耕作条件下土壤水分分布特征和再分布规律.结果表明:垄沟耕作改变了农田微地形,利用垄上降雨顺垄流入沟中,从而拦蓄部分径流,相对增加了沟中土壤蓄水,有利于水分向下运移.相对于自然垄沟,膜垄的集雨效果明显,沟中土壤平均含水量显著高于垄中,20～100 cm土层范围内平均土壤含水量分别为12.7%和9.1%;成垄压实土壤水分在剖面分布状况与盖膜垄沟的水分分布相似,水分向沟内集中,沟中土壤水分含量显著高于同一土层深度处垄中土壤含水量,且与盖膜垄沟处理下沟中土壤水分含量无显著差异,在集水和聚水方面表现出和膜垄的相似性.因此,在以集雨农业为主的半干旱地区,成垄压实可以替代盖膜垄沟,有效地富集和储存雨水资源于沟中,供作物吸收利用.
英文摘要	The characteristics of soil water distribution and redistribution under different types of ridge and furrow cultivation(bare earth ridge and furrow,plastic-mulched ridge and furrow,and locally compacted ridge and furrow) were studied under simulated rainfall conditions.The results showed that ridge and furrow cultivation changed micro-topography of farmland and increased soil water content of furrow by collecting the runoff generated from ridge,in favor of downward movement of soil water.Under the plastic-mulched ridge and furrow cultivation,the average soil water content of furrow(12.7%) was significantly higher than that of ridge(9.1%) at the soil depths of 20～100 cm.The locally compacted ridge served as a water flow barrier and a rainfall collection area under locally compacted ridge and furrow cultivation,and the water content of furrow was significantly higher than that of ridge in the same soil depths,which was similar to the characteristic of soil water distribution under plastic-mulched ridge and furrow cultivation.No significant differences were found in soil water content of furrow between locally compacted ridge and furrow cultivation and plastic-mulched ridge and furrow cultivation,with the same efficiency of water collection.In conclusion,it is effective and environment-friendly that the locally compacted ridge substitute for the plastic-mulched ridge as the runoff area for rainwater harvesting in the semiarid areas where crop production is largely rainfed.
中文关键词	土垄 ; 膜垄 ; 成垄压实 ; 土壤水分分布
英文关键词	ridge plastic-covered ridge locally compacted ridge soil water distribution
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:2935863
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/378558
作者单位	佘冬立, 中国科学院教育部水土保持与生态环境研究中心, 黄土高原土壤侵蚀与旱地农业国家重点实验室, 杨陵, 陕西 712100, 中国.; 邵明安, 中国科学院教育部水土保持与生态环境研究中心, 黄土高原土壤侵蚀与旱地农业国家重点实验室, 杨陵, 陕西 712100, 中国.
推荐引用方式 GB/T 7714	佘冬立,邵明安. 成垄压实耕作条件下土壤水分分布的试验研究[J],2007,21(5):110-.
APA	佘冬立,&邵明安.(2007).成垄压实耕作条件下土壤水分分布的试验研究.水土保持学报,21(5),110-.
MLA	佘冬立,et al."成垄压实耕作条件下土壤水分分布的试验研究".水土保持学报 21.5(2007):110-.