Spatial Difference of Soil Erosion in the Small Watershed of Songhuaba Water Source Area in Kunming City

HUANG Ying; WANG Jie; HUANG Song-bai; ZHU Jun

doi:10.3969/j.issn.1001-5485.2013.04.005

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Journal of Changjiang River Scientific Research Institute ›› 2013, Vol. 30 ›› Issue (4) : 21-24. DOI: 10.3969/j.issn.1001-5485.2013.04.005

Spatial Difference of Soil Erosion in the Small Watershed of Songhuaba Water Source Area in Kunming City

HUANG Ying¹, WANG Jie¹, HUANG Song-bai¹, ZHU Jun²

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Abstract

Spatial difference of soil erosion in Muyang river watershed was analyzed by SWAT hydrological model. The research was carried out based on the meteorological data from 1993 to 2009 and land use data in 2009 in Songhuaba water source area and Kunming city, and the second national general soil survey data as well as the observed data of runoff and sediment discharge in the small watershed. Results showed that the interannual peak and valley values of precipitation and sediment discharge were in good coherence. While within the year, the sediment discharge occurred mainly from June to September. The average soil erosion modulus varied from 21.4 t/(km²·a) to 4 586.5 t/(km²·a), indicating that the soil erosion is mainly between middle to moderate levels. The spatial variation of soil erosion is closely related with land use type and topography and slope angle. Interannual variations of soil erosion modulus and precipitation were also in consistency. The research provides basis for estimating the spatial distribution of soil erosion and making targeted conservation measures.

Key words

soil erosion / small watershed / Songhuaba water source area

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HUANG Ying, WANG Jie, HUANG Song-bai, ZHU Jun. Spatial Difference of Soil Erosion in the Small Watershed of Songhuaba Water Source Area in Kunming City[J]. Journal of Changjiang River Scientific Research Institute. 2013, 30(4): 21-24 https://doi.org/10.3969/j.issn.1001-5485.2013.04.005

References

［1］王占礼.中国土壤侵蚀影响因素及其危害分析［J］.农业工程学报,2000,16(4):32-36.(WANG Zhan-li. Analysis of Affecting Factors of Soil Erosion and Its Harms in China［J］. Transactions of the CSAE, 2000, 16(4): 32-36.(in Chinese))
［2］潘美慧,伍永秋,任斐鹏,等.基于USLE的东江流域土壤侵蚀量估算［J］. 自然资源学报,2010,25(12):2154-2164.(PAN Mei-hui, WU Yong-qiu, REN Fei-peng, et al. Estimating Soil Erosion in the Dongjiang River Basin Based on USLE［J］. Journal of Natural Resources, 2010, 25(12): 2154-2164.(in Chinese))
［3］余丹,孙丽娜,于俊峰,等.基于SWAT的猫跳河流域径流及土壤侵蚀模拟研究［J］.中国农学通报,2012,28(17):256-261.(YU Dan, SUN Li-na, YU Jun-feng, et al. Simulation on Soil Erosion and Streamflow in Maotiaohe Watershed of Guizhou Province Based on SWAT Model［J］. Chinese Agricultural Science Bulletin, 2012,28(17):256-261.(in Chinese))
［4］杨宏伟,许崇育.东江流域典型子流域土地利用覆被变化对地表径流影响［J］.湖泊科学,2011,23(6):991-996.(YANG Hong-wei, XU Chong-yu. Effect of LUCC on Runoff of the Three Representative Watersheds in Dongjiang River Basin［J］. Journal of Lake Science, 2011, 23(6): 991-996.(in Chinese))
［5］庞靖鹏,刘昌明,徐宗学.基于SWAT模型的径流与土壤侵蚀过程模拟［J］.水土保持研究,2007,14(6):88-93.(PANG Jing-peng, LIU Chang-ming, XU Zong-xue. Streamflow and Soil Erosion Simulation Based on SWAT Model［J］. Research of Soil and Water Conservation, 2007, 14(6): 88-93.(in Chinese))
［6］ ARNOLD J G, SRINIVASAN R, MUTTIAH R S, et al. Large Area Hydrologic Modeling and Assessment (Part I): Model Development［J］. Journal of American Water Resources Association, 1998, 34(1): 73-89.
［7］ NEITSCH S L, ARNOLD J G, KINIRY J R, et al. Soil Water Assessment Tool Theoretical Document, Version 2005［M］. Texas: Grassland, Soil and Water Research Laboratory, Agricultural Research Service, 2005.
［8］ ARNOLD J G, WILLIAMS J R, NICKS A D, et al. SWRRB: A Basin Scale Simulation Model for Soil and Water Resources Management［M］. Texas: A&M University Press, 1990.
［9］ ARNOLD J G, WILLIAMS J R, MAIDMENT D R. Continuous-Time Water and Sediment-Routing Model for Large Basins［J］. Journal of Hydraulic Engineering ASCE, 1995, 121 (2): 171-183.
［10］ROUHOLAHNEJAD E, ABBASPOUR K C, VEJDANI M, et al. Parallelizing SWAT Calibration in Windows Using the SUFI2 Program［J］. Environmental Modelling and Software, 2012, 31: 28-36.
［11］YANG Jing, REICHERT P, ABBASPOUR K C, et al. Comparing Uncertainty Analysis Techniques for a SWAT Application to the Chaohe Basin in China［J］. Journal of Hydrology, 2008, 358(1/2): 1-23.