干旱区生态环境知识资源中心(Arid): 坡地打结垄沟集雨对水土流失、紫花苜蓿干草产量和水分利用效率的影响

Arid

	坡地打结垄沟集雨对水土流失、紫花苜蓿干草产量和水分利用效率的影响
其他题名	Effects of Tied-ridging Rainwater Harvesting on Soil Erosion,Alfalfa Fodder Yield and Water Use Efficiency on Slope Lands
	李富春 1; 王琦 1; 张登奎 1; 刘青林 2; 张恩和 2; 陈瑾 3
来源期刊	水土保持学报
ISSN	1009-2242
出版年	2018
卷号	32 期号:1 页码:147-156,161
中文摘要	为寻求半干旱区控制水土流失和提高降水资源利用率的最佳坡地垄沟集雨种植方式,以传统平作为对照,在坡度5°和10°的坡地布置大田试验,研究打结方式(无打结垄和打结垄)对土壤贮水量、小区径流效率、径流量、泥沙流失量、紫花苜蓿干草产量和水分利用效率(WUE)的影响。结果表明:在坡度5°时,与平作相比,无打结垄和打结垄的紫花苜蓿全生育期土壤贮水量分别增加9.3,15.0mm,紫花苜蓿实际干草产量分别提高20.4%,8.9%,WUE分别提高4.78,4.58kg/(hm~2·mm),而径流量分别降低21.9%,41.2%,泥沙流失量分别降低80.8%,83.3%。在坡度10°时,与平作相比,无打结垄和打结垄的紫花苜蓿全生育期土壤贮水量分别增加11.2,16.2mm,紫花苜蓿实际干草产量分别提高22.4%,9.0%,WUE分别提高4.89,4.06kg/(hm~2·mm),而径流量分别降低24.8%,36.4%,泥沙流失量分别降低74.5%,82.0%。采用平均径流法,坡度5°时,平作、无打结垄和打结垄的小区径流效率分别为11.6%,9.2%,6.7%;坡度10°时,平作、无打结垄和打结垄的小区径流效率分别为14.1%,10.0%,7.8%。就紫花苜蓿全生育期平均值而言,坡度5°的平均土壤贮水量比坡度10°增加4.3mm,坡度5°的净干草产量、实际干草产量和WUE与坡度10°相差不明显。坡度10°的径流量、泥沙流失量和小区径流效率均是坡度5°的1.2倍。无打结垄和打结垄集雨种植具有较好水土保持和增产效果,其中无打结垄增产效果最为明显,打结垄水土保持效果最为明显。
英文摘要	In order to seek the optimum tied-ridging tillage system with good controlling on soil erosion,and high utilization of precipitation in semi-arid area,a field experiment with a randomized complete block design was conducted on two slopes(5°and 10°)during alfalfa growing season.The experiment was designed to investigate the effects of different tillage systems (ridging without ties and tied-ridging)on soil water storage,plot runoff efficiency,runoff,sediment loss,alfalfa fodder yield and water use efficiency(WUE), and traditional planting(TP)was taken as control.On the 5°slope,compared with TP,average soil water storage,alfalfa fodder yields and the WUE for ridging without ties increased by 9.3 mm,20.4%and 4.78 kg/(hm~2·mm),respectively.The corresponding parameters for tied-ridging increased 15.0 mm,8.9%and 4.58 kg/(hm~2·mm),respectively.Runoff and sediment loss on the same slope for ridging without ties decreased by 21.9% and 80.8%,respectively,while these two parameters of tied-ridging decreased by 41.2%and 83.3%.On the 10°slope,compared with TP,average soil water storages,alfalfa fodder yields and the WUE for ridging without ties and tied-ridging increased by 11.2 and 16.2 mm,22.4%and 9.0%, 4.89 and 4.06 kg/(hm~2·mm),respectively,while the runoffs and sediment losses of these two tillage systems ridging decreased by 24.8%and 36.4%,74.5%and 82.0%,respectively.Average plot runoff efficiencies of TP,ridging without ties and tied-ridging were 11.6%~14.1%,9.2%~10.0% and 6.7%~7.8%, respectively.Soil water storage in 5°slope increased by 4.3 mm compared with slope of 10°.The differences of net fodder yield,actual fodder yield and WUE between 5°and 10°slopes were not distinct.The runoff, sediment loss and plot runoff efficiency of 10°slope were 1.2 times greater than those of 5°slope.Ridgefurrow rainwater harvesting was good on water and soil conservation,and fodder yield increasing.Tiedridging was particularly effective for water and soil conservation,while ridging without ties was particularly effective for increasing of fodder yield.
中文关键词	坡地 ; 打结垄沟集雨 ; 水土流失 ; 紫花苜蓿 ; 干草产量
英文关键词	slope land tied-ridging rainwater harvesting soil erosion alfalfa fodder yield
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:6189319
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/2XILL650/238299
作者单位	1.甘肃农业大学草业学院, 兰州, 甘肃 730070, 中国; 2.甘肃农业大学农学院, 兰州, 甘肃 730070, 中国; 3.定西市水土保持科学研究所, 定西, 甘肃 743000, 中国
推荐引用方式 GB/T 7714	李富春,王琦,张登奎,等. 坡地打结垄沟集雨对水土流失、紫花苜蓿干草产量和水分利用效率的影响[J]. 甘肃农业大学,2018,32(1):147-156,161.
APA	李富春,王琦,张登奎,刘青林,张恩和,&陈瑾.(2018).坡地打结垄沟集雨对水土流失、紫花苜蓿干草产量和水分利用效率的影响.水土保持学报,32(1),147-156,161.
MLA	李富春,et al."坡地打结垄沟集雨对水土流失、紫花苜蓿干草产量和水分利用效率的影响".水土保持学报 32.1(2018):147-156,161.