干旱区生态环境知识资源中心(Arid): 绿洲灌区一膜覆两年玉米的节水潜力

Arid

	绿洲灌区一膜覆两年玉米的节水潜力
其他题名	Water-saving Potential for Biennial Mulched Corn with Same Plastic Film in Oasis Irrigation Area
	张乃旭 1; 赵财 2; 赵良霞 2; 蔡莉娟 2; 王一帆 2; 柴强2
来源期刊	作物学报
ISSN	0496-3490
出版年	2018
卷号	44 期号:6 页码:876-885
中文摘要	西北绿洲灌区以传统覆膜方式为主的农业节水措施受水资源不足和白色地膜污染的挑战日益加剧,地膜减量节水技术研究亟待开展。20142016年,在河西绿洲灌区进行田间试验,重点探讨不同灌水水平下,一膜覆两年(RM)处理、少耕覆膜(RtM)和传统覆膜(CM)对玉米农田耗水特征和水分利用效率(WUE)的影响。结果表明, RM和RtM相对于CM均能显著提高玉米播前土壤贮水量, 3年平均增加41.7 mm和31.6 mm (提高15.9%和12.1%)。玉米播种到拔节初期(全生育期前40 d),灌水水平相同时, RM较RtM和CM降低了耗水量但增加了棵间蒸发量,且棵间蒸发量/耗水量(E/ET)显著增大,相反从玉米拔节初期到收获期, RM的E/ET较CM降低13.2%,即RM有利于减少玉米生育后期的无效耗水量, RtM与CM则无显著差异。灌水水平相同时, RtM水分利用效率最优, RM与CM之间无显著差异。相同覆膜方式下,中灌水水平玉米的WUE最高, RM与CM整个生育期内的耗水量、棵间蒸发量及E/ET均无显著差异,表明一膜覆两年具有传统覆膜方式节水增效的优点。因此,在河西绿洲溉区,一膜覆两年具有与每年翻耕覆新膜同等的水分利用效果,是试验区可推广的节水、地膜减量生产技术。
英文摘要	The agricultural water-saving measures in Northwest oasis irrigation areas are mainly mulching with traditional plastic film. This process is increasingly challenged by lack of water resources and increasing environment pollution from the white plastic film. Therefore, reducing the plastic film use and identifying innovative water-saving technologies need to be carried out urgently. The experiment was conducted to explore the effects of conventional plastic film mulching (CM), plastic film mulching with reduced tillage (RtM) and plastic film re-mulching for two years (RM) under different irrigation levels on water consumption characteristics and water use efficiency (WUE) in the Hexi corridor oasis zone in 2014-2016. Both RM and RtM relative to CM could significantly increase soil water storage before sowing, respectively increasing 41.7 mm and 31.6 mm (15.9% and 12.1%) on average in three years. From corn seeding to early jointing stages (the first 40 days of the plants’ life cycle), under the same irrigation level, the water consumption of RM decreased, compared with that of RtM and CM, but the ground evaporation between plants increased. Also, there was a significant increase for soil evaporation/water consumption (E/ET). On the contrary, from early stage of corn jointing to harvesting stage, RM decreased E/ET by 13.2%, compared with CM, showing that RM is beneficial to reduce the useless water consumption in the later stage of corn production. There was no significant difference on E/ET between RtM and CM. When the water level was the same, the water use efficiency was the best in RtM and no significant difference between RM and CM. Under the same film mulching mode, the WUE of the middle water level irrigated maize was the highest, and there was no significant difference in water consumption, evaporation and E/ET between RM and CM during the whole growth period, indicating that RM is just like CM having the advantage of water saving and increasing efficiency. The research indicate that the biennial mulching shares the same water use outcome with the traditional annual mulching in Hexi oasis irrigation area, which could be adopted in the trial areas to save water and reduce the application of plastic film.
中文关键词	覆膜方式 ; 灌水量 ; 耗水量 ; 棵间蒸发量 ; 水分利用效率
英文关键词	E/ET film mulching irrigation quota water consumption soil evaporation E/ET water use efficiency
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRONOMY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6260950
来源机构	甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238914
作者单位	1.甘肃农业大学资源与环境学院;;甘肃农业大学资源与环境学院, ;;甘肃省干旱生境作物学重点实验室, 兰州;;兰州, 甘肃;;甘肃 730070;;730070, 中国; 2.甘肃农业大学资源与环境学院, 甘肃省干旱生境作物学重点实验室, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	张乃旭,赵财,赵良霞,等. 绿洲灌区一膜覆两年玉米的节水潜力[J]. 甘肃农业大学,2018,44(6):876-885.
APA	张乃旭,赵财,赵良霞,蔡莉娟,王一帆,&柴强.(2018).绿洲灌区一膜覆两年玉米的节水潜力.作物学报,44(6),876-885.
MLA	张乃旭,et al."绿洲灌区一膜覆两年玉米的节水潜力".作物学报 44.6(2018):876-885.