Assessment of land degradation using machine‐learning techniques
A case of declining rangelands
Datos Bibliográficos
Increased use and increasing demands pose serious threats to rangelands. In this study, we document a pronounced downward trend in rangeland quality in the Alborz Mountains in Firozkuh County, Iran using analysis of three machine‐learning models (MLMs). A total of 1,147 transects were established to evaluate the rangeland quality trends from field data collected over a 7‐year period. Twelve independent conditional factors were analyzed for their relationships to range quality through three MLMs—Random Forest (RF), classification and regression tree (CART), and support vector machine (SVM). Based on assessments of the trained and validated models, RF, with a ROC‐AUC = 0.96, was determined to be the most robust. The results show that about 20% of the rangeland in the study area is in a critically degraded condition. Distances from roads and livestock density are the two factors most strongly linked to degradation. These results, in combination with field observations, indicate that the rangelands of the study area face two major challenges (overgrazing and early grazing) that require new strategies to mitigate and prevent damages. This study may provide important guidance for evaluating rangeland conditions in other regions of the world
Acacia · Agroforestry · Decision tree · Geography · Grazing · Land degradation · Land use · Livestock · Machine learning · Overgrazing · Physical geography · Random forest · Rangeland · Support vector machine · Transect · Agricultural and Rural Development Research · Computer Science · Environmental Science · Rangeland and Wildlife Management · Rangeland Management and Livestock Ecology · Ecology · Forestry
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| Obras citantes distintas | 11 |
|---|---|
| Citas por año | 2,2 |
| Intervalo de citas | 2021 - 2026 (6) |
| Velocidad de citación | current |
| Altamente citado | No |
| Tipos de cita | Neutras: 11 |