Assessment of soil erosion dynamics and implications for sustainable land management: A case study using the RUSLE model

IF 3.5 2区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES
Lu Zhang , Muhammad Haseeb , Zainab Tahir , Aqil Tariq , Khalid F. Almutairi , Walid Soufan
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Abstract

The current research aimed to evaluate the severity and distribution of soil erosion in a Swat district, Pakistan, which is vital for sustainable land management and conservation efforts. This study focused on key parameters affecting soil erosion: the length factor (L), slope factor (S), crop management factor (C), rainfall erosivity factor (R), soil erodibility factor (K), and support practice factor (P). Various parameters were quantified via RS data from Sentinel-2 imagery and processed with geographical information system (GIS) tools. The values of these parameters ranged from 0.00% to 38.86%, 0 to 1, 547 to 773 MJ·mm·ha1·year1, 0.24–0.33 MJ·mm·ha1·year1 and 0.10–1.00, respectively. On the basis of these estimates, the total annual potential soil loss was approximately 173,816 t·ha1·year1 with extreme erosion rates exceeding 10,000 t·ha1·year1 in specific locations. The study categorized the soil erosion risk into five classes, ranging from very low to extreme, enabling the identification of areas requiring immediate attention and intervention. The findings of this study provide valuable insight for land management and conservation planning while also contributing to the United Nations’ Sustainable Development Goal 2 (Zero Hunger) by identifying areas where soil erosion poses a significant threat to food security. The current study underscores the importance of addressing soil erosion to promote sustainable land use and conservation strategies, ensuring long-term agricultural productivity and environmental health.
土壤侵蚀动态评估及其对可持续土地管理的影响:RUSLE模型的案例研究
目前的研究旨在评估巴基斯坦斯瓦特地区土壤侵蚀的严重程度和分布,这对可持续的土地管理和保护工作至关重要。本文重点研究了影响土壤侵蚀的关键参数:长度因子(L)、坡度因子(S)、作物管理因子(C)、降雨侵蚀力因子(R)、土壤可蚀性因子(K)和支护实践因子(P)。利用Sentinel-2遥感影像的RS数据量化各项参数,并利用地理信息系统(GIS)工具进行处理。这些参数的取值范围分别为0.00% ~ 38.86%、0 ~ 1、547 ~ 773 MJ·mm·ha−1·year−1、0.24 ~ 0.33 MJ·mm·ha−1·year−1和0.10 ~ 1.00。在这些估算的基础上,年潜在土壤流失总量约为173,816 t·ha−1·年−1,在特定地点的极端侵蚀速率超过10,000 t·ha−1·年−1。该研究将土壤侵蚀风险分为五个等级,从非常低到极端,从而确定需要立即关注和干预的地区。这项研究的结果为土地管理和保护规划提供了宝贵的见解,同时也通过确定土壤侵蚀对粮食安全构成重大威胁的地区,为联合国可持续发展目标2(零饥饿)做出了贡献。目前的研究强调了解决土壤侵蚀问题对于促进可持续土地利用和保护战略、确保长期农业生产力和环境健康的重要性。
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来源期刊
International Journal of Sediment Research
International Journal of Sediment Research 环境科学-环境科学
CiteScore
6.90
自引率
5.60%
发文量
88
审稿时长
74 days
期刊介绍: International Journal of Sediment Research, the Official Journal of The International Research and Training Center on Erosion and Sedimentation and The World Association for Sedimentation and Erosion Research, publishes scientific and technical papers on all aspects of erosion and sedimentation interpreted in its widest sense. The subject matter is to include not only the mechanics of sediment transport and fluvial processes, but also what is related to geography, geomorphology, soil erosion, watershed management, sedimentology, environmental and ecological impacts of sedimentation, social and economical effects of sedimentation and its assessment, etc. Special attention is paid to engineering problems related to sedimentation and erosion.
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