[1]ZHANG Yuanping,LIU Chengshuai,XIAO Haibing,et al.Evaluation of Watershed Sediment Yield Based on Hydrological Connectivity[J].Research of Soil and Water Conservation,2022,29(03):64-70.
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Evaluation of Watershed Sediment Yield Based on Hydrological Connectivity
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
29
Number of periods:
2022 03
Page number:
64-70
Column:
Public date:
2022-04-20
- Title:
- Evaluation of Watershed Sediment Yield Based on Hydrological Connectivity
- CLC:
- P333.4
- DOI:
- -
- Abstract:
- Hydrological connectivity refers to the convenience of sediment, nutrients and other materials to migrate, transport or diffuse between spatial heterogeneous landscapes or patches with water as the carrier, which has an important impact on sediment yield. The spatial and temporal variation characteristics of soil erosion and hydrological connectivity were analyzed. Furthermore, the sediment yield of the watershed was further estimated based on the empirical model related to connectivity index and sediment delivery ratio. The results show that the soil erosion modulus and IC index increased continuously during the period 1990—2000; the connectivity level increased from low connectivity and medium-low connectivity to medium-high connectivity and high connectivity; both IC value and soil erosion modulus showed a decreasing trend during the period 2000—2010; in addition, there was a significant linear relationship between the estimated sediment yield and the measured value(R2=0.92), but the overestimated sediment yield was observed in this study, which might be related to the interception effect of reservoirs and lakes; it is necessary to incorporate them into the model for further research to more accurately evaluate sediment yield. These results are of the great significance for improving the applicability of the model and understanding the sediment yield processes in the watershed.
- References:
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[1] 冯家豪,赵广举,穆兴民,等.黄河中游泥沙输移特性及机理研究[J].泥沙研究,2020,45(5):34-41.
[2] 李占斌,朱冰冰.土壤侵蚀与水土保持研究进展[J].土壤学报,2008,45(5):802-809.
[3] Chuenchum P, Xu M Z, Tang W Z. Predicted trends of soil erosion and sediment yield from future land use and climate change scenarios in the Lancang-Mekong River by using the modified RUSLE model[J]. International Soil and Water Conservation Research, 2020,8(3):213-227.
[4] Aneseyee A B, Elias E, Soromessa T, et al. Land use/land cover change effect on soil erosion and sediment delivery in the Winike watershed, Omo Gibe Basin, Ethiopia[J]. Science of the Total Environment, 2020,728:138776, https://doi.org/10,1016/j.scitotenv.2020.138776.
[5] Rajbanshi J, Bhattacharya S. Assessment of soil erosion, sediment yield and basin specific controlling factors using RUSLE-SDR and PLSR approach in Konar river basin, India[J]. Journal of Hydrology, 2020,587:124935, https://doi.org/10,1016/j.jhydrol.2020.124935.
[6] Ranzi R, Le T H, Rulli M C. A RUSLE approach to model suspended sediment load in the Lo River(Vietnam):Effects of reservoirs and land use changes[J]. Journal of Hydrology, 2012,422(5):17-29.
[7] Wang S, Fu B J, Piao S L, et al. Reduced sediment transport in the Yellow River due to anthropogenic changes[J]. Nature Geoscience, 2015,9(1):38-41.
[8] Mishra K, Sinha R, Jain V, et al. Towards the assessment of sediment connectivity in a large Himalayan river basin[J]. Science of the Total Environment, 2019,661:251-265.
[9] 高常军,高晓翠,贾朋.水文连通性研究进展[J].应用与环境生物学报,2017,23(3):586-594.
[10] Mayorá G, Bautista S, Small E E, et al. Measurement of the connectivity of runoff source areas as determined by vegetation pattern and topography:A tool for assessing potential water and soil losses in drylands[J]. Water Resources Research, 2008,44(10):doi.org/10,1029/2007WR006367.
[11] Ludwig J A, Eager R W, Bastin G N, et al. A leakiness index for assessing landscape function using remote sensing[J]. Landscape Ecology, 2002,17(2):157-171.
[12] Jancewicz K, Migon P, Kasprzak M. Connectivity patterns in contrasting types of tableland sandstone relief revealed by Topographic Wetness Index[J]. Science of the Total Environment, 2019,656:1046-1062.
[13] Borselli L, Cassi P, Torri D. Prolegomena to sediment and flow connectivity in the landscape:A GIS and field numerical assessment[J]. Catena, 2008,75(3):268-277.
[14] Cavalli M, Trevisani S, Comiti F, et al. Geomorphometric assessment of spatial sediment connectivity in small Alpine catchments[J]. Geomorphology, 2013,188:31-41.
[15] Ortíz-Rodríguez A J, Muñoz-Robles C, Borselli L. Changes in connectivity and hydrological efficiency following wildland fires in Sierra Madre Oriental, Mexico[J]. Science of the Total Environment, 2019,655:112-128.
[16] Zhao G J, Gao P, Tian P, et al. Assessing sediment connectivity and soil erosion by water in a representative catchment on the Loess Plateau, China[J]. Catena, 2020,185: doi.org/10,1016/j.catena.2019.104284.
[17] Woznicki S A, Cada P, Wickham J, et al. Sediment retention by natural landscapes in the conterminous United States[J]. Science of the Total Environment, 2020,745: doi.org/10,1016/j.scitotenv.2020.140972.
[18] 艾蕾.南水北调中线水源区典型流域土壤侵蚀与水环境特征研究[D].武汉:华中农业大学,2013.
[19] 黄萱.植被覆盖和降雨变化对流域水沙过程的影响机制:以堵河流域为例[D].武汉:华中农业大学,2019.
[20] Renard K G, Foster G R, Weeies G A. RUSLE a guide to conservation planning with the revised universal soil loss equation[R]. Usda Agricultural Handbook, 1997.
[21] 章文波,谢云,刘宝元.利用日雨量计算降雨侵蚀力的方法研究[J].地理科学,2002,22(6):705-711.
[22] Wischmeier W H, Johnson C B, Cross B V. Soil erodibility nomograph for farmland and construction sites[J]. Journal of Soil and Water Conservation, 1971,26(5):189-193.
[23] Liu B Y, Nearing M A, Risse L M. Slope gradient effects on soil loss for steep slopes[J]. Transactions of the Asae, 1994,37(6):1835-1840.
[24] Durigon V L, Carvalho D F, Antunes M A H, et al. NDVI time series for monitoring RUSLE cover management factor in a tropical watershed[J]. International Journal of Remote Sensing, 2014,35(2):441-453.
[25] Fu B J, Zhao W W, Chen L D, et al. Assessment of soil erosion at large watershed scale using RUSLE and GIS:A case study in the Loess Plateau of China[J]. Land Degradation & Development, 2005,16(1):73-85.
[26] Crema S, Cavalli M. Sed in connect: A stand-alone, free and open source tool for the assessment of sediment connectivity[J]. Computers & Geosciences, 2018,111:39-45.
[27] Vigiak O, Borselli L, Newham L T H, et al. Comparison of conceptual landscape metrics to define hillslope-scale sediment delivery ratio[J]. Geomorphology, 2012,138(1):74-88.
[28] Hassen E E, Assen M. Land use/cover dynamics and its drivers in Gelda catchment, Lake Tana watershed, Ethiopia[J]. Environmental Systems Research, 2018,6(1):1-13.
[29] Nosipho Makaya, Timothy Dube, Khoboso Seutloali, et al. Geospatial assessment of soil erosion vulnerability in the upper uMgeni catchment in KwaZulu Natal, South Africa[J]. Physics and Chemistry of the Earth, 2019,112:50-57.
[30] Yan B, Fang N F, Zhang P C, et al. Impacts of land use change on watershed streamflow and sediment yield: An assessment using hydrologic modelling and partial least squares regression[J]. Journal of Hydrology, 2013,484:26-37.
[31] 张光辉.从土壤侵蚀角度诠释泥沙连通性[J].水科学进展,2021,32(2):295-308.
[32] 袁亚男.昕水河流域土地利用与植被变化对水文连通性影响研究[M].北京:华北电力大学,2019.
[33] 王盛萍,姚安坤,赵小婵.基于人工降雨模拟试验的坡面水文连通性[J].水科学进展,2014,25(4):526-533.
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Last Update:
2022-04-20