干旱区生态环境知识资源中心(Arid): 模拟降水量条件下不同种植方式集雨效应研究

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	模拟降水量条件下不同种植方式集雨效应研究
其他题名	Effects of different planting methods on rainwater accumulation under simulated rainfall conditions
	任永峰; 赵沛义; 李彬; 妥德宝; 贾有余; 安昊
来源期刊	中国农业大学学报
ISSN	1007-4333
出版年	2015
卷号	20 期号:6 页码:233-239
中文摘要	针对阴山北麓旱作区雨水蓄积利用效率低的问题,探讨本地区主要种植方式对降水的蓄积效应及降水后土壤水分变化动态。本研究采用模拟降水试验方法,对降水后农田土层水分含量的变化情况进行监测和分析,结果表明:1)在4mm降水下,粘壤土不同处理土壤贮水量显著高于对照;在12mm降水下,沙壤土不同处理土壤贮水量显著高于对照。不同降雨量粘壤土和沙壤土贮水量增量表现一致,大小顺序均为垄作全膜>垄作半膜>平作全膜>平作半膜>平作(CK)。以8mm降水为例,粘壤土各处理中,垄作全膜处理下土壤贮水增量为6.5mm,是对照的1.76倍,沙壤土各处理中,垄作全膜种植方式贮水增量是对照的3.2倍。2)垄作全膜能够将12mm以上降水蓄积在粘壤土表层,使该层土壤水分变化较小,土壤含水量基本维持在15.0%~16.5%,沙壤土蓄积雨水效果较差。3)在降水后5 d内,粘壤土土壤水分变化为0~20 cm土壤含水量呈降低趋势,降水后第3天该土层土壤含水量下降变缓,20~30 cm土壤含水量先增加后降低,在降水后第3天达到最高,30~50 cm土壤含水量均呈增加趋势;沙壤土土壤水分变化为0~30 cm土壤含水量下降趋势较明显,30~50 cm土壤含水量表现为先增加后降低。因此,在本地区生产条件下,垄作全膜不仅具有良好的集雨效果,而且能够将积蓄雨水主要分布于土壤表层30~ 50 cm,从而对有限的降水资源进行再分配,提高作物的水分利用效率。
英文摘要	To explore the effect of local planting patterns on rainwater accumulation and utilization efficiency and soil water dynamic change at arid area of Yinshan.This experiment uses the simulated rainfall method to monitor and analysis the moisture content in farmland after rainfall.The results show that:1)Under rainfall of 4mm,soil water storage is significant higher than CK in clay soil;Under rainfall of 12mm,Soil water storage is significant higher than CK in sandy loam.Clay soil has same soil water storage with sandy loam,whole plastic-film mulching on ridge>half plasticfilm mulching on ridge>whole plastic-film mulching on tillage>half plastic-film mulching on tillage>tillage(CK),in the increment of soil water storage.For example,at 8mm precipitation in clay loam of all treatments,the increment of soil water holding capacity is 6.5mm in whole plastic-film mulching on ridge treatment,and is 1.76 times higher than CK,in sandy loam soil of all treatments,the increment of soil water holding capacity in whole plastic-film mulching on ridge treatment is 3.2 times higher than CK.2)whole plastic-film mulching on ridge could accumulate above 12mm rainfall in the top clay soil;it would slightly change soil water stability,and the soil water content would keep stable between 15.0%-16.5%.However,the sandy loam has worse performance in accumulation rainfall aspect.3)After 5 days rainfall,the changing laws of soil moisture of clay soil show downward trend for 0-20 cm soil moisture and get slower on third day after rainfall;first rise and then drop trend for 20-30 cm soil moisture and achieve the top on third day after rainfall;The increase trend for 30-50 cm soil moisture.In addition,the changing laws of soil moisture of sandy loam diplays obvious decrease trend for 0-30 cm soil moisture and first rise and then drop trend for 30-50 cm soil moisture.In conclusion,not only whole plastic-film mulching on ridge has better water harvesting efficiency,but also has better ability to accumulate rainfall in 30-50 cm soil depth layer.Whole plastic-film mulching on ridge could improve the rainfall accumulation efficiency.Hence,it could increase water use efficiency of crop and effectively limited rainfall resources reallocation.
中文关键词	模拟降水 ; 土壤贮水量 ; 种植方式 ; 集雨效应 ; 土壤含水量
英文关键词	simulated rainfall method soil water storage planting mode rain collection effect soil water content
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRONOMY ; AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5581919
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/233683
作者单位	内蒙古农牧业科学院资源环境与检测技术研究所, 呼和浩特, 内蒙古 010031, 中国
推荐引用方式 GB/T 7714	任永峰,赵沛义,李彬,等. 模拟降水量条件下不同种植方式集雨效应研究[J],2015,20(6):233-239.
APA	任永峰,赵沛义,李彬,妥德宝,贾有余,&安昊.(2015).模拟降水量条件下不同种植方式集雨效应研究.中国农业大学学报,20(6),233-239.
MLA	任永峰,et al."模拟降水量条件下不同种植方式集雨效应研究".中国农业大学学报 20.6(2015):233-239.