干旱区生态环境知识资源中心(Arid): 干旱区大田玉米膜下滴灌土壤水热效应研究

Arid

	干旱区大田玉米膜下滴灌土壤水热效应研究
其他题名	Soil Moisture and Thermal Effect of Maize Under Mulched Drip Irrigation in Arid Area
	齐智娟 1; 冯浩 1; 张体彬 1; 杨爱峥 2; 周立峰 3
来源期刊	水土保持学报
ISSN	1009-2242
出版年	2017
卷号	31 期号:1 页码:172-178,185
中文摘要	土壤水热状况是影响干旱区作物产量的主要因素,围绕膜下滴灌土壤水热运移情况,以河套灌区玉米为研究对象,开展了2年的田间试验,研究了膜下滴灌条件下不同覆膜耕作方式对土壤水热运移规律的影响。试验设垄作全膜(LQ)、垄作半膜(LB)、平作全膜(PQ)和平作半膜(PB)4个处理,采用烘干法测定0-120cm土壤含水量,ECH_2O-5TE探头测定0-120cm土壤温度。试验结果表明:在苗期,0-20cm土层LQ土壤含水率较LB、PQ和PB分别提高了14.4%,23.8%和26.9%;拔节期,0-40cm土层LQ含水率较LB提高了32.6%,PQ较PB提高了5.8%;抽雄期0-60cm土层垄作土壤含水率明显高于平作,而60-120cm土壤含水率差异不明显;成熟期0-80cm土层LQ土壤含水率较LB、PQ和PB分别提高了18.1%,11.2%和21.5%。分析0-70cm土层平均土壤温度发现,LQ的温度明显高于半膜覆盖的处理, 2014年和2015年LQ土壤温度较LB分别增加0.44,1.16℃,较PQ分别增加0.93,0.22℃,较PB分别增加1.22,1.37℃。2年的试验验证了不同覆膜耕作方式下,随土层深度的增加,土壤温度变化趋于平缓。垄作全膜可以提高土壤温度,增大土壤含水率,有效防止垄体土壤温度的散失,为作物生长提供良好的水热状态,促进作物增产。
英文摘要	Soil moisture and thermal condition were two key factors for crop production in Arid Region.The effects of different plastic film and tillage modes under mulched drip irrigation on the spatial variation of soil moisture and heat transfer were studied by the 2-year field experiment in Hetao Irrigation District.The experiment designed 4 treatments which included ridge tillage with full film mulching(LQ),ridge tillage with half film mulching(LB),flat tillage with full film mulching(PQ)and flat tillage with half film mulching(PB).Soil moisture in 0-120 cm profile was measured by drying method.Soil temperature was checked by ECH_2O at the soil layer of 0-120 cm.The results showed that compared to LB,PQ and PB,LQ increased soil water contents by an average of 14.4%,23.8%and 26.9%in 0-20 cm respectively at seedling stage. At jointing stage,LQ and PQ enhanced the same parameter by up to 32.6%and 5.8%than LB and PB in 0-40 cm respectively.The soil water content of ridge tillage in 0-60 cm was significantly higher than flat tillage during heading stage,however there was no significant different in 60-120 cm.Finally,LQ in 0-80 cm increased soil water content by 18.1%,11.2% and 21.5% compared to LB,PQ and PB at maturing stage,respectively.Average soil temperature in 0-70 cm soil layers was significant higher in full film mulching than half film mulching.Compared to LB,PQ and PB,soil temperature of LQ increased 0.44℃and 1.16℃,0.93℃and 0.22℃,1.22℃and 1.37℃in 2014 and 2015 respectively.The changes of soil temperature were tented to be steady with increasing soil depth.Ridge tillage with full film mulching method could significantly increase soil temperature,enhance the soil water content and had obvious effects on restraining the loss of heat.It was clear that the optimal mulch and tillage strategies were beneficial to form better soil moisture and temperature environment and then increased crop yield.
中文关键词	膜下滴灌 ; 垄作 ; 地温 ; 土壤水分
英文关键词	mulched drip irrigation ridge tillage soil temperature soil moisture
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURAL ENGINEERING
WOS研究方向	Agriculture
CSCD记录号	CSCD:5931024
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/2XILL650/236665
作者单位	1.中国科学院教育部水土保持与生态环境研究中心, 中国科学院教育部水土保持与生态环境研究中心, 杨凌, 陕西 712100, 中国; 2.东北农业大学水利与土木工程学院, 哈尔滨, 黑龙江 150030, 中国; 3.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	齐智娟,冯浩,张体彬,等. 干旱区大田玉米膜下滴灌土壤水热效应研究[J]. 西北农林科技大学,2017,31(1):172-178,185.
APA	齐智娟,冯浩,张体彬,杨爱峥,&周立峰.(2017).干旱区大田玉米膜下滴灌土壤水热效应研究.水土保持学报,31(1),172-178,185.
MLA	齐智娟,et al."干旱区大田玉米膜下滴灌土壤水热效应研究".水土保持学报 31.1(2017):172-178,185.