基于RWEQ模型的石渠县土壤风蚀评价及影响因素分析
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摘要
应用修正风蚀模型(RWEQ)对四川省甘孜藏族自治州石渠县进行土壤风蚀模数估算,分析土壤风蚀在石渠县的空间分布特征及各个因素对石渠县土壤风蚀作用的影响。结果表明,石渠县北部抗土壤风蚀能力优于南部,西南部受土壤风蚀影响最大;气象因子为土壤风蚀最主要的影响因子,在6月汛期时土壤风蚀模数达到最大;植被指数的空间分布特征与土壤风蚀模数空间分布特征契合,对其影响较深。
The modified wind erosion model(RWEQ) was used to estimate the soil wind erosion modulus of Shiqu county,Ganzi prefecture, Sichuan province, and the spatial distribution characteristics of soil wind erosion and the effects of various factors on the soil wind erosion in Shiqu county were analyzed. The results showed that, the resistance to soil wind erosion in northern Shiqu county was better than that in southern, and the southwest was the most affected by soil wind erosion. Meteorological factors were the most important factors affecting soil wind erosion. The soil wind erosion modulus reached the maximum in the flood season in June. The spatial distribution of vegetation index was consistent with the spatial distribution characteristics of soil wind erosion modulus, and its influence was deep.
The modified wind erosion model(RWEQ) was used to estimate the soil wind erosion modulus of Shiqu county,Ganzi prefecture, Sichuan province, and the spatial distribution characteristics of soil wind erosion and the effects of various factors on the soil wind erosion in Shiqu county were analyzed. The results showed that, the resistance to soil wind erosion in northern Shiqu county was better than that in southern, and the southwest was the most affected by soil wind erosion. Meteorological factors were the most important factors affecting soil wind erosion. The soil wind erosion modulus reached the maximum in the flood season in June. The spatial distribution of vegetation index was consistent with the spatial distribution characteristics of soil wind erosion modulus, and its influence was deep.
引文
[1] BLANCO-CANQUI H, LAL R. Principles of soil conservation and management[M/OL].Springer,2010:http://www.doc88.com/p-31975794580.html,2008-08/2019-02-18.
[2] WOODRUFF N P,SIDDOWAY F H. A wind erosion equation[J].Proceedings of the soil science society of america,1965,29(5):602-608.
[3] FRYREAR D W,BILBRO J D,SALEH A,et al. RWEQ:Improved wind erosion technology[J].Journal of soil and water conservation,2000,55(2):183-189.
[4]迟文峰,白文科,刘正佳,等.基于RWEQ模型的内蒙古高原土壤风蚀研究[J].生态环境学报,2018,27(6):1024-1033.
[5]江凌,肖燚,欧阳志云,等.基于RWEQ模型的青海省土壤风蚀模数估算[J].水土保持研究,2015,22(1):21-32.
[6]巩国丽,刘纪远,邵全琴.基于RWEQ的20世纪90年代以来内蒙古锡林郭勒盟土壤风蚀研究[J].地理科学进展,2014,33(6):825-834.
[7]江凌,肖燚,饶恩明,等.内蒙古土地利用变化对生态系统防风固沙功能的影响[J].生态学报,2016,36(12):3734-3747.
[8]南岭,杜灵通,王锐.土壤风蚀模型研究进展[J].世界科技研究与发展,2013,35(4):505-509.
[9] SKIDMORE E L,TATARKO J. Stochastic wind simulation for erosion modeling[J].Transactions of the ASAE,1990,33(6):1893-1899.
[10] HAGEN L J,SKIDMORE E L,SALEH A. Wind erosion:Prediction of aggregate abrasion coefficients[J].Transactions of the ASAE,1992,35(6):1847-1850.
[11] BILBRO J D,FRYREAR D W. Wind erosion losses as related to plant silhouette and soil cover[J].Agronomy journal,1994,86(3):550-553.
[2] WOODRUFF N P,SIDDOWAY F H. A wind erosion equation[J].Proceedings of the soil science society of america,1965,29(5):602-608.
[3] FRYREAR D W,BILBRO J D,SALEH A,et al. RWEQ:Improved wind erosion technology[J].Journal of soil and water conservation,2000,55(2):183-189.
[4]迟文峰,白文科,刘正佳,等.基于RWEQ模型的内蒙古高原土壤风蚀研究[J].生态环境学报,2018,27(6):1024-1033.
[5]江凌,肖燚,欧阳志云,等.基于RWEQ模型的青海省土壤风蚀模数估算[J].水土保持研究,2015,22(1):21-32.
[6]巩国丽,刘纪远,邵全琴.基于RWEQ的20世纪90年代以来内蒙古锡林郭勒盟土壤风蚀研究[J].地理科学进展,2014,33(6):825-834.
[7]江凌,肖燚,饶恩明,等.内蒙古土地利用变化对生态系统防风固沙功能的影响[J].生态学报,2016,36(12):3734-3747.
[8]南岭,杜灵通,王锐.土壤风蚀模型研究进展[J].世界科技研究与发展,2013,35(4):505-509.
[9] SKIDMORE E L,TATARKO J. Stochastic wind simulation for erosion modeling[J].Transactions of the ASAE,1990,33(6):1893-1899.
[10] HAGEN L J,SKIDMORE E L,SALEH A. Wind erosion:Prediction of aggregate abrasion coefficients[J].Transactions of the ASAE,1992,35(6):1847-1850.
[11] BILBRO J D,FRYREAR D W. Wind erosion losses as related to plant silhouette and soil cover[J].Agronomy journal,1994,86(3):550-553.