干旱区生态环境知识资源中心(Arid): 干旱区不同冬灌定额对土壤水盐分布的影响研究

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	干旱区不同冬灌定额对土壤水盐分布的影响研究
其他题名	Effect of Winter Irrigation Amount on Soil Moisture and Salt Distribution in Arid Area
	张瀚; 杨鹏年; 汪昌树; 李勋章
来源期刊	灌溉排水学报
ISSN	1672-3317
出版年	2016
卷号	35 期号:11 页码:42-46
中文摘要	为了研究开孔河流域棉田不同定额冬灌对土壤水分及盐分的影响,缓解地区春季农业用水压力,探究棉田只冬灌的灌水模式是否能够满足棉花出苗阶段生理需水要求,通过大田试验,对比分析了各处理(1 200、1 800、2 400、3 000、3 600、4 200 m3/hm2)灌前与灌后不同时期0~100 cm土层水分、盐分的变化情况。结果表明,小定额灌水条件下耕作层水分易蒸发,保水效果不显著,返盐现象严重,脱盐作用较弱。经比较分析,冬灌定额为3 600 m~3/hm~2时,具有显著的保墒压盐的作用,可为返春后的棉花播种及出苗提供较好的水盐条件,可起到减少春灌定额或免除春灌的作用。
英文摘要	To explore whether the only winter irrigation mode can meet the physiological water demand of cotton seeding stage, and ease the pressure on agricultural water use in spring, field plot experiment was conducted to investigate the effects of winter irrigation amount on soil moisture and salt in the cotton field of Kaidu-Kongque River Basin. In the experiment, the changes of water and salt amount in 0~100 cm soil layer before and after irrigation of different treatments (1 200, 1 800, 2 400, 3 000, 3 600, 4 200 m~3/hm~2) were compared and analyzed. The results showed that when irrigation amount was small, water in the plough layer tended to evaporate readily, resulting in water loss. It didnt play the role of desalination under small irrigation amount, because soil secondary salinization was serious. Considering the influence of soil water and salt distribution under different irrigation amounts, it was concluded that when winter irrigation amount was 3600 m3/hm2, the soil moisture conservation and soil desalinization effects was significant, which could provide better growing conditions in cotton planting and seeding stage and could reduce or exempt spring irrigation.
中文关键词	冬灌定额 ; 脱盐效果 ; 土壤含水率
英文关键词	winter irrigation amount effect of desalination 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:5835429
来源机构	新疆农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234437
作者单位	新疆农业大学水利与土木工程学院, 乌鲁木齐, 新疆 830052, 中国
推荐引用方式 GB/T 7714	张瀚,杨鹏年,汪昌树,等. 干旱区不同冬灌定额对土壤水盐分布的影响研究[J]. 新疆农业大学,2016,35(11):42-46.
APA	张瀚,杨鹏年,汪昌树,&李勋章.(2016).干旱区不同冬灌定额对土壤水盐分布的影响研究.灌溉排水学报,35(11),42-46.
MLA	张瀚,et al."干旱区不同冬灌定额对土壤水盐分布的影响研究".灌溉排水学报 35.11(2016):42-46.