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DOI10.1016/j.gsf.2017.10.010
Prediction of spatial soil loss impacted by long-term land-use/land-cover change in a tropical watershed
Abdulkareem, J. H.1,2; Pradhan, B.3,4,5; Sulaiman, W. N. A.1; Jamil, N. R.1
发表日期2019
ISSN1674-9871
卷号10期号:2页码:389-403
英文摘要

The devastating effect of soil erosion is one of the major sources of land degradation that affects human lives in many ways which occur mainly due to deforestation, poor agricultural practices, overgrazing, wildfire and urbanization. Soil erosion often leads to soil truncation, loss of fertility, slope instability, etc. which causes irreversible effects on the poorly renewable soil resource. In view of this, a study was conducted in Kelantan River basin to predict soil loss as influenced by long-term land use/land-cover (LULC) changes in the area. The study was conducted with the aim of predicting and assessing soil erosion as it is influenced by long-term LULC changes. The 13,100 km(2) watershed was delineated into four sub-catchments Galas, Pergau, Lebir and Nenggiri for precise result estimation and ease of execution. GIS-based Universal Soil Loss Equation (USLE) model was used to predict soil loss in this study. The model inputs used for the temporal and spatial calculation of soil erosion include rainfall erosivity factor, topographic factor, land cover and management factor as well as erodibility factor. The results showed that 67.54% of soil loss is located under low erosion potential (reversible soil loss) or 0-1 t ha(-1) yr(-1) soil loss in Galas, 59.17% in Pergau, 53.32% in Lebir and 56.76% in Nenggiri all under the 2013 LULC condition. Results from the correlation of soil erosion rates with LULC changes indicated that cleared land in all the four catchments and under all LULC conditions (1984-2013) appears to be the dominant with the highest erosion losses. Similarly, grassland and forest were also observed to regulate erosion rates in the area. This is because the vegetation cover provided by these LULC types protects the soil from direct impact of rain drops which invariably reduce soil loss to the barest minimum. Overall, it was concluded that the results have shown the significance of LULC in the control of erosion. Maps generated from the study may be useful to planners and land use managers to take appropriate decisions for soil conservation. (C) 2017, China University of Geosciences (Beijing) and Peking University. Production and hosting by Elsevier B.V.


WOS研究方向Geology
来源期刊GEOSCIENCE FRONTIERS
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/94629
作者单位1.Univ Putra Malaysia, Fac Environm Studies, Dept Environm Sci, Serdang 43400, Selangor, Malaysia;
2.Ahmadu Bello Univ, Fac Agr, Inst Agr Res, Dept Soil Sci, PMB 1044, Zaria, Nigeria;
3.Univ Putra Malaysia, GISRC, Fac Engn, Dept Civil Engn, Serdang 43400, Selangor, Malaysia;
4.Univ Technol Sydney, Fac Engn & Informat Technol, CAMGIS, Bldg 11,Level 06,81 Broadway,POB 123, Ultimo, NSW 2007, Australia;
5.Sejong Univ, Dept Energy & Mineral Resources Engn, 209 Neungdong Ro, Seoul 05006, South Korea
推荐引用方式
GB/T 7714
Abdulkareem, J. H.,Pradhan, B.,Sulaiman, W. N. A.,et al. Prediction of spatial soil loss impacted by long-term land-use/land-cover change in a tropical watershed[J],2019,10(2):389-403.
APA Abdulkareem, J. H.,Pradhan, B.,Sulaiman, W. N. A.,&Jamil, N. R..(2019).Prediction of spatial soil loss impacted by long-term land-use/land-cover change in a tropical watershed.GEOSCIENCE FRONTIERS,10(2),389-403.
MLA Abdulkareem, J. H.,et al."Prediction of spatial soil loss impacted by long-term land-use/land-cover change in a tropical watershed".GEOSCIENCE FRONTIERS 10.2(2019):389-403.
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