| چکیده انگلیسی مقاله |
Soil erosion is one of the most important causes of land degradation and the key global environmental hazard, especially for developing countries, affecting all natural and human-managed ecosystems. Human activities such as inappropriate management of farmlands, deforestation, and overgrazing have accelerated soil erosion. Among the factors influencing the rates of soil erosion, plant cover and land use are considered the most important, beyond the influence of rainfall intensity and slope gradient. In addition to different land percentages, the spatial pattern of land use change and vegetation continuity changes have a major impact on hydrological, erosion, ecological and socioeconomic processes in the watersheds. Therefore, analyzing landscape pattern changes can be a practical and effective approach to understanding the effects of human restorative and destructive activities in many landscapes. The present study aimed to determine the relationship between sediment budget components and the landscape metrics in the sub-watersheds of Khamsan experimental watershed, west of Iran. Geographical weighted regression was used to investigate the local correlations between metric and budget components in the sub-watersheds. The results of geographical weighted regression method showed that among the studied metrics, TA, MESH, TE and NP metrics with total erosion, TA, MESH, TE, NP and with total deposition and AREA-MN and A with sediment delivery ratio were strongly related. |
