Simamora, Fransiskus Hasudungan (2025) Pendugaan Laju Erosi Pada Berbagai Penggunaan Lahan di Kecamatan Beji, Kabupaten Pasuruan. Undergraduate thesis, UPN Veteran Jawa Timur.
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Abstract
Soil erosion is a major environmental issue that threatens agricultural productivity, particularly in areas with intensive land use and diverse topographic conditions. Beji Sub-district, Pasuruan Regency, has been experiencing land degradation due to land conversion and agricultural intensification, which increase the risk of soil erosion. However, quantitative information on erosion rates under different land uses in Beji Sub-district remains limited, making it difficult to formulate appropriate conservation strategies. This study aimed to estimate soil erosion rates, erosion hazard levels (TBE), and the erosion hazard index (IBE) under various land uses in Beji Sub-district. The research applied the Universal Soil Loss Equation (USLE), which integrates rainfall erosivity (R), soil erodibility (K), slope length and steepness (LS), vegetation cover (C), and land management practices (P). Rainfall data were obtained from NASA POWER satellite records, while soil physical and chemical properties were analyzed in the laboratory. The estimated erosion rates were then compared with the Tolerable Soil Loss (TSL) to assess erosion hazard levels. The results revealed that erosion rates varied considerably across land uses, ranging from very low to very high categories. Upland fields on steep slopes recorded erosion values that far exceeded the TSL, with IBE classified as High to Very High. Regression analysis indicated that slope length and steepness (LS) and land management practices (P) were the most influential factors, while vegetation cover (C) played a crucial role in reducing soil loss. These findings highlight the urgent need for integrated soil and water conservation practices in Beji Sub-district. Conservation strategies should include vegetative measures such as cover crops and intercropping systems, as well as mechanical approaches including terracing and contour ridges, to ensure sustainable agricultural productivity in erosion-prone areas.
| Item Type: | Thesis (Undergraduate) | ||||||||||||
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| Subjects: | S Agriculture > S Agriculture (General) > S590-599.9 Soils. Soil science | ||||||||||||
| Divisions: | Faculty of Agriculture > Departement of Agritechnology | ||||||||||||
| Depositing User: | Fransiskus Hasudungan Simamora | ||||||||||||
| Date Deposited: | 19 Sep 2025 03:01 | ||||||||||||
| Last Modified: | 19 Sep 2025 03:01 | ||||||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/43826 |
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