干旱区生态环境知识资源中心(Arid): Experimental Study of Runoff and Sediment Yield Affected by Ridge Direction and Width of Sloping Farmland

Arid

DOI	10.3389/feart.2021.694773
	Experimental Study of Runoff and Sediment Yield Affected by Ridge Direction and Width of Sloping Farmland
	Liu, Shanshan; Qin, Tianling; Lv, Xizhi; Shi, Xuan; Dong, Biqiong; Wang, Jianwei; Liu, Chun
通讯作者	Qin, TL (corresponding author), China Inst Water Resources & Hydropower Res, State Key Lab Simulat & Regulat Water Cycle River, Beijing, Peoples R China. ; Lv, XZ (corresponding author), Yellow River Inst Hydraul Res, Minist Water Resources, Key Lab Loess Plateau Soil Eros & Water Loss Proc, Zhengzhou, Peoples R China.
来源期刊	FRONTIERS IN EARTH SCIENCE
EISSN	2296-6463
出版年	2021
卷号	9
英文摘要	Water and soil losses from sloping farmlands potentially contribute to water eutrophication and land degradation. However, few studies explored the combined effects of ridge direction and ridge width on surface runoff and soil losses of sloping farmlands. Twenty-seven experimental plots (8 m long and 4 m wide) with nine treatments (three ridge direction: cross ridge, longitudinal ridge, and oblique ridge; and three ridge width: 40, 60, and 80 cm) were adopted under natural rainfall conditions for two years in the Luanhe River Basin of China. Results indicated that ridge direction had significant effects on runoff and sediment yield (p < 0.05). The ridge width had no significant effect on runoff and sediment yield. No significant interaction effect was found between ridge direction and width on runoff and sediment yield of the sloping farmland based on statistical analyses. Compared with cross-ridge (CR) tillage and oblique-ridge (OR) tillage, longitudinal-ridge (LR) tillage significantly decreased runoff by 78.9% and 64.9% and soil losses by 88.2 and 83.5%, respectively (p < 0.05). The effects of ridge directions on runoff and sediment yield were related to rainfall grade. When the rainfall grade reached rainstorm, the runoff yield under CR, LR, and SR had significant differences (p < 0.05). The runoff under LR and OR treatment was 5.16 and 3.3 times, respectively, of that under CR. When the rainfall level was heavy rain or rainstorm, the sediment yield under LR was significantly greater than that under CR. The sediment yield was 13.45 times of that under CR. Cross-ridge tillage with a ridge width of 40 cm is an optimally effective measure of soil and water conservation on sloping farmland in arid and semiarid regions of China.
英文关键词	runoff sediment sloping farmland ridge direction ridge width
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000678335300001
WOS关键词	SOIL-EROSION ; NUTRIENT LOSSES ; PHOSPHORUS LOSS ; RAINFALL INTENSITY ; CITRUS ORCHARDS ; RESERVOIR AREA ; ROW SIDESLOPES ; WATER EROSION ; FIELD SLOPE ; NITROGEN
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368621
作者单位	[Liu, Shanshan; Qin, Tianling; Dong, Biqiong; Wang, Jianwei] China Inst Water Resources & Hydropower Res, State Key Lab Simulat & Regulat Water Cycle River, Beijing, Peoples R China; [Lv, Xizhi] Yellow River Inst Hydraul Res, Minist Water Resources, Key Lab Loess Plateau Soil Eros & Water Loss Proc, Zhengzhou, Peoples R China; [Shi, Xuan] San Jose State Univ, Coll Engn, San Jose, CA 95192 USA; [Liu, Chun] Hebei Univ Engn, Sch Conservancy & Hydroelect Power, Handan, Peoples R China
推荐引用方式 GB/T 7714	Liu, Shanshan,Qin, Tianling,Lv, Xizhi,et al. Experimental Study of Runoff and Sediment Yield Affected by Ridge Direction and Width of Sloping Farmland[J],2021,9.
APA	Liu, Shanshan.,Qin, Tianling.,Lv, Xizhi.,Shi, Xuan.,Dong, Biqiong.,...&Liu, Chun.(2021).Experimental Study of Runoff and Sediment Yield Affected by Ridge Direction and Width of Sloping Farmland.FRONTIERS IN EARTH SCIENCE,9.
MLA	Liu, Shanshan,et al."Experimental Study of Runoff and Sediment Yield Affected by Ridge Direction and Width of Sloping Farmland".FRONTIERS IN EARTH SCIENCE 9(2021).