干旱区生态环境知识资源中心(Arid): 分根交替膜下滴灌条件下南疆棉花耗水特性与生长特征

Arid

	分根交替膜下滴灌条件下南疆棉花耗水特性与生长特征
其他题名	Characteristics of water consumption and growth of cotton with alternate partial root-zone drip irrigation under mulch in South-Xinjiang
	苏里坦 1; 虎胆·吐马尔白 2; 张展羽 3
ISSN	1002-6819
出版年	2009
卷号	25 期号:6 页码:20-25
中文摘要	该文以棉花为供试材料,研究了2种不同膜下滴灌(分根交替膜下滴灌和全根区均匀膜下滴灌)在3种不同灌水量(3750、4500、5250 m~3/hm~2)条件下南疆膜下滴灌棉花的耗水特性、生长状况(株高、根长等)以及水分利用效率.结果表明,分根交替膜下滴灌在中等灌水量(4500 m~3/hm~2)下干旱区棉田土壤水分的垂向最大湿润深度达50 cm多,土壤水分水平最大湿润半径为40 cm左右,其中覆膜中间点土壤含水率最大,其次是覆膜边缘,而在棵间裸地中间点土壤含水率最小.土壤平均含水率在棉花全生育期内有着上升的趋势,在2种滴灌模式下,棉花株高和根长随灌水量的增加而增高.当灌水量一定时,不同灌水模式对株高和根长的影响不明显,棉花株高和根长在分根交替膜下滴灌模式下其生长量受灌水量的影响要大于全根均匀膜下滴灌模式.相比全根均匀膜下滴灌,分根交替膜下滴灌抑制了棉花蒸腾速率,即分根交替膜下滴灌通过减少棵间蒸发和作物蒸腾耗水来提高了棉花的水分利用效率,这对实现干旱区滴灌棉田节水高产高效具有重要意义.
英文摘要	The cotton field irrigation experiments were carried out to study the effects of two irrigation methods(alternate partial root-zone drip irrigation under mulch (APRD) and conventional root-zone drip irrigation under mulch (CRD)) and three water application rates(3750, 4500, 5250 m~3/hm~2) on the soil water consumption, the characteristics of cotton growth(such as cotton stem height, root length, and so on), and water use efficiency (WUE) of cotton. Results in cotton field of arid area showed that the maximum vertical soil wetted depth was more than 50 cm and the maximum horizontal soil wetted radius was 40 cm under moderate irrigation level(4500 m~3/hm~2) of APRD, and the order of soil water content was the middle sites of mulch > the edge sites of much > the middle sites of bare land. Average soil water content had increasing trend during the whole growing stage of cotton, stem height and root length of cotton were increased with the water application rate. The effects of different irrigation methods on the cotton stem height and root length were not significantly under the same water application rates, and the effects of the water application rates on the cotton stem height and root length under APRD were larger than those under CRD. Compare with CRD, APRD constrains transpiration rate of cotton, which was beneficial to the improvement of water use efficiency by reducing soil evaporation and water consumption of crop transpiration. There was an important role to obtain high yield and high water use efficiency in the drip irrigation cotton field of arid area.
中文关键词	分根交替膜下滴灌 ; 棉花 ; 生长 ; 耗水特性
英文关键词	alternate partial root-zone drip irrigation under mulch cotton growth characteristics of water consumption
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:3638357
来源机构	中国科学院新疆生态与地理研究所 ; 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/2XILL650/223943
作者单位	1.中科院新疆生态与地理研究所, 中国科学院绿洲生态与荒漠环境重点实验室, 乌鲁木齐, 新疆 830011, 中国; 2.新疆农业大学水利与土木工程学院, 乌鲁木齐, 新疆 830052, 中国; 3.河海大学现代农业水土工程学院, 南京, 江苏 210098, 中国
推荐引用方式 GB/T 7714	苏里坦,虎胆·吐马尔白,张展羽. 分根交替膜下滴灌条件下南疆棉花耗水特性与生长特征[J]. 中国科学院新疆生态与地理研究所, 新疆农业大学,2009,25(6):20-25.
APA	苏里坦,虎胆·吐马尔白,&张展羽.(2009).分根交替膜下滴灌条件下南疆棉花耗水特性与生长特征.,25(6),20-25.
MLA	苏里坦,et al."分根交替膜下滴灌条件下南疆棉花耗水特性与生长特征".25.6(2009):20-25.