Effect of Different Upslope Tillage Intensity on Water Erosion on Sloping Farmland in the Dry-hot Valley of Jinsha River

JIA Lizhi; ZHANG Zehong

doi:10.13870/j.cnki.stbcxb.2020.03.003

您当前的位置：

首页 >

文章列表页 >

Effect of Different Upslope Tillage Intensity on Water Erosion on Sloping Farmland in the Dry-hot Valley of Jinsha River

更新时间：2025-03-12

- Effect of Different Upslope Tillage Intensity on Water Erosion on Sloping Farmland in the Dry-hot Valley of Jinsha River
- Vol. 34, Issue 3, Pages: 14-19(2020)
- 作者机构：
  
  1. 中央民族大学生命与环境科学学院,北京,100081
  2. 西华师范大学国土资源学院,四川,南充,637000
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2020.03.003
  CLC： S153.2
- Published：2020
- 稿件说明：
移动端阅览
JIA Lizhi, ZHANG Zehong. Effect of Different Upslope Tillage Intensity on Water Erosion on Sloping Farmland in the Dry-hot Valley of Jinsha River[J]. 2020, 34(3): 14-19.
DOI：

JIA Lizhi, ZHANG Zehong. Effect of Different Upslope Tillage Intensity on Water Erosion on Sloping Farmland in the Dry-hot Valley of Jinsha River[J]. 2020, 34(3): 14-19. DOI： 10.13870/j.cnki.stbcxb.2020.03.003.

摘要

为了研究不同逆坡耕作强度导致的土壤位移对坡面水蚀的影响，以金沙江干热河谷区坡面径流小区为研究对象，在径流小区5°，10°，15°坡面上，进行单宽流量为0.6 m2/h的放水试验。在10°坡面的下坡位置设置0.05，0.10，0.20 m土层深度，分别代表连续耕作80，69，46年导致下坡位置土壤损失土层变薄情况。通过收集径流小区出口的产流量和产沙量，研究在不同坡度上的不同逆坡耕作强度导致的土壤位移对坡面产流率、产沙率、总流量和总产沙量的影响。结果表明：（1）在10°坡面，耕作年限越长，产流越快，不同耕作强度（年限）的产流率、总产流量、产沙率和总产沙量均表现46年 < 69年 < 80年的变化趋势，说明长期逆坡耕作导致的土壤位移加速了坡面水蚀的发生；（2）在耕作69年的坡面，坡度越大，产流越快。在测定坡度范围，产流率、总产流量、产沙率和总产沙量均表现出5° < 10° < 15°的变化趋势，即坡度的增加明显增大了坡面水蚀；（3）随耕作侵蚀强度的增大，坡面产流率与产沙率间的指数增长关系越显著，而坡度的增大弱化了水沙指数函数关系。研究成果可为揭示干热河谷区逆坡耕作强度和坡度对水蚀的作用机理提供参考。

Abstract

To study the effect of soil translocation by different upslope tillage intensities on water erosion

we took the slope runoff plot in the Dry-hot Valley of Jinsha River as the research object. A series of scouring experiments were conducted in three runoff plots (2 m×10 m) with three slope gradients (5°

10°

15°) and a fixed flow discharge of 0.6 m2/h. Three soil depths (0.05 m

0.10 m

0.20 m) were set on the downslope positions of the 10° slope representing the soil loss by continuous tillage for 80

69 and 46 years respectively. Runoff and sediment were collected at the outlet of runoff plot to examine the effect of different tillage intensities and gradients on runoff rate

runoff amount

detachment rate and total sediment yield. The main results showed that: (1) The more intensive tillage was

the more easily runoff in the 10° slope. The runoff rate

runoff amount

detachment rate and sediment yield increased with the increasing tillage intensities: 46 years < 69 years < 80 years

suggesting that soil translocation caused by long-term upslope tillage accelerated water erosion. (2) The runoff started time after the initiation of the scouring decreased with the increasing slope gradients on the 69 years slopes. In the experimented slope range

the runoff rate

runoff amount

detachment rate and sediment yield were as follow: 5° < 10° < 15°

showing that the increase of slopes further promoted water erosion. (3) A positively exponential correlation was found between runoff rates and detachment rates. The increase of tillage intensities enhanced the exponential growth

but the increase of slope gradients weakened the exponential relationship of water and sediment. These results provide references for revealing the affecting mechanism of long-term upslope tillage intensity and slope gradient on water erosion in the dry-hot valley region.

关键词

Keywords

references

陈奇伯,王克勤,李艳梅,等.金沙江干热河谷不同类型植被改良土壤效应研究[J].水土保持学报,2003,17(2):67-70.

Bouhlassa S, Bouhsane N. Assessment of areal water and tillage erosion using magnetic susceptibility:The approach and its application in Moroccan watershed[J]. Environmental Science and Pollution Research,2019,26(25):25452-25466.

Zhang J H, Jia L Z, Zhang Z H, et al. Effect of the soil-implement contact area on soil translocation under hoeing tillage[J]. Soil and Tillage Research,2018,183:42-50.

Zhao P Z, Li S, Wang E H, et al. Tillage erosion and its effect on spatial variations of soil organic carbon in the black soil region of China[J]. Soil and Tillage Research, 2018,178:72-81.

Rejman J, Iglik I, Paluszek J, et al. Soil redistribution and crop productivity in loess areas (Lublin Upland, Poland)[J]. Soil and Tillage Research, 2014,143:77-84.

Zhang J H, Lobb D A, Li Y, et al. Assessment of tillage translocation and tillage erosion by hoeing on the steep land in hilly areas of Sichuan, China[J]. Soil and Tillage Research,2004,75(2):99-107.

Kosmas C, Gerontidis S, Marathianou M, et al. The effects of tillage displaced soil on soil properties and wheat biomass[J]. Soil and Tillage Research, 2001,58(1/2):31-44.

Dupin B, De Rouw A, Phantahvong K B, et al. Assessment of tillage erosion rates on steep slopes in northern Laos[J]. Soil and Tillage Research,2009,103(1):119-126.

Ziegler A D, Giambelluca T W, Sutherland R A, et al. Soil translocation by weeding on steep-slope swidden fields in northern Vietnam[J]. Soil and Tillage Research,2007,96(1/2):219-233.

王勇,张建辉,李富程.耕作侵蚀对坡耕地土壤水稳定性团聚体和水分特征的影响[J].水土保持学报,2015,29(1):180-185.

Zhang S L, Zhang X Y, Huffman T, et al. Influence of topography and land management on soil nutrients variability in Northeast China[J]. Nutrient Cycling in Agroecosystems,2011,89(3):427-438.

Wang Y, Zhang J H, Zhang Z H, et al. Impact of tillage erosion on water erosion in a hilly landscape[J]. Science of the Total Environment,2016,551:522-532.

Zhang J H, Li F C. Soil redistribution and organic carbon accumulation under long-term (29 years) upslope tillage systems[J]. Soil Use and Management, 2013,29(3):365-373.

贾立志.横断山区耕作侵蚀强度分级及主要影响因子临界值确定[D].北京:中国科学院,2017.

Shekunov B Y, Chattopadhyay P, Tong H H Y, et al. Particle size analysis in pharmaceutics:Principles, methods and applications[J]. Pharmaceutical Research, 2007,24(2):203-227.

Huang C, Wells L K, Norton L D. Sediment transport capacity and erosion processes:Model concepts and reality[J]. Earth Surface Processes and Landforms, 1999,24(6):503-516.

Wang Y, Zhang J H, Zhang Z H. Influences of intensive tillage on water-stable aggregate distribution on a steep hillslope[J]. Soil and Tillage Research,2015,151:82-92.

陈浩.降雨特征和上坡来水对产沙的综合影响[J].水土保持学报,1992,6(2):17-23.

郑粉莉,高学田.坡面汇流汇沙与侵蚀-搬运-沉积过程[J].土壤学报,2004,41(1):134-139.

Zheng F L, Huang C H, Norton L D. Vertical hydraulic gradient and run-on water and sediment effects on erosion processes and sediment regimes[J]. Soil Science Society of America Journal,2000,64(1):4-11.

Fu X T, Zhang L P, Wang Y. Effect of slope length and rainfall intensity on runoff and erosion conversion from laboratory to field[J]. Water Resources,2019,46(4):530-541.

Perreault L M, Yager E M, Aalto R. Effects of gradient, distance, curvature and aspect on steep burned and unburned hillslope soil erosion and deposition[J]. Earth Surface Processes and Landforms,2017,42(7):1033-1048.

Fang H Y, Sun L Y, Tang Z H. Effects of rainfall and slope on runoff, soil erosion and rill development:An experimental study using two loess soils[J]. Hydrological Processes,2015,29(11):2649-2658.

丁文峰,李勉,姚文艺,等.坡沟侵蚀产沙关系的模拟试验研究[J].土壤学报,2008,45(1):32-39.

王玲玲,姚文艺,王文龙,等.黄土丘陵沟壑区多尺度地貌单元输沙能力及水沙关系[J].农业工程学报,2015,31(24):120-126.

Views

1069

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Impact of Hydraulic Conditions on Soil Detachment Capacity under Different Surface Roughness

Experimental Study on Delay of Grass Coverage on Overland Flow

Runoff and Sediment Yield Process on the Sand-covered Loess Slopes Under Simulated Runoff Conditions

Effect of Contributing Area Threshold on the Evaluation of Soil Erosion

Related Author

ZHAO Longshan

HAN Zhen

MAO Tianxu

CHEN Tingsheng

FANG Fayong

ZI Ruyi

CHEN Jiang-nan

YANG Chun-xia

Related Institution

College of Forestry， Guizhou University

Key Laboratory of Karst Georesources and Environment of Ministry of Education， Guizhou University

Key Lab of Northwest Water Resources and Environment Ecology of Ministry of Education, Xian University of Technology

State Key Laboratory of Soil Erosion and Dryland Agriculture on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling

CCCC First Highway Consultants Co., LTD

⁰