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To address the limitation of conventional rubber plantation suitability assessments that overlook geographical environmental heterogeneity, this study proposes a suitability evaluation approach based on geographical zoning modeling. Eight key indicators were selected from three dimensions, topographic conditions, hydrothermal conditions, and cold damage risk, to construct the evaluation index system. The weight of these indicators was determined by integrating the Analytic Hierarchy Process (AHP) with the GeoDetector method. Using the Ailao Mountains ridge as a geographical demarcation, the rubber plantation area in Yunnan province was divided into western and eastern zones, for which region-specific factor suitability grading standards were established and applied for factor reclassification. Subsequently, the reclassified factors were integrated through linear weighting to produce a comprehensive suitability evaluation, classifying the results into four categories, unsuitable, marginally suitable, moderately suitable, and highly suitable. Among the six prefecture-level regions engaged in rubber cultivation, highly suitable areas accounted for approximately 4.29% of the total land area, moderately suitable areas for 2.79%, and marginally suitable areas for 5.06%, totaling about 12.14%. These areas are mainly concentrated in Xishuangbanna, Pu'er and Honghe. Overlay analysis with 2024 rubber plantation distribution data revealed that about 47.80% of existing plantations in highly suitable zones, 22.09% in moderately suitable zones, and 19.29% in marginally suitable zones, accounting for a combined 89.18%. This distribution shows a high degree of spatial consistency with the actual planting patterns. The evaluation results, with a spatial resolution of 10 m, are capable of reflecting fine-scale variations in Yunnan's mountainous environments, and can thus provide valuable references for rubber plantation planning and adjustment in Yunnan province.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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