The rapid growth of agricultural plantations and climatic extremes has raised concerns pertaining to enhanced soil erosion. Soil erosion studies are still relatively limited in Malaysia. In this study, soil erosion in four sites such as high conservation value forests (HCVFs), logged forest (LF), mature oil palm (MOP), and mature rubber (MR) within the Kelantan River Basin was measured. A total of 3,207 measurements were conducted via the Modified Laser Erosion Bridge in all sites over 1 year. Results of soil erosion are 87.63, 25.45, 8.44, and 5.90 t ha⁻¹ yr⁻¹ for the HCVF, LF, MOP and MR, respectively – classified as very severe (HCVF), very high (LF), moderate (MP) and slight (MR) according to the Indian condition classification. Steep slope gradient (significant positive correlation to erosion) and logging are the main factors attributed to the high erosion rates. This is to be further explored in the future and more detailed studies should be conducted on the HCVF and LF areas, respectively. Mitigation measures and sustainable agricultural practices should be planned to control and reduce soil erosion.

农业种植园的迅速增长和气候极端状况引起了人们对土壤侵蚀加剧的担忧。在马来西亚，土壤侵蚀研究仍然相对有限。在这项研究中，对吉兰丹河流域内的四个地点的土壤侵蚀进行了测量，例如高保护价值森林（HCVFs），伐木森林（LF），成熟油棕（MOP）和成熟橡胶（MR）。在1年中，通过改良的激光侵蚀桥在所有站点进行了总计3,207次测量。土壤侵蚀的结果为87.63、25.45、8.44和5.90 t ha ^-1 yr ^-1HCVF，LF，MOP和MR分别根据印度的病情分类分为非常严重（HCVF），非常高（LF），中等（MP）和轻微（MR）。陡峭的坡度（与侵蚀有明显的正相关关系）和测井是造成高侵蚀率的主要因素。将来将对此进行进一步的探索，应分别在HCVF和LF区域进行更详细的研究。应该计划缓解措施和可持续农业实践，以控制和减少水土流失。