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The study on the ecological suitability regionalization for jackfruit (Artocarpus heterophyllus Lam.) is of great significance for guiding its cultivation layout and digging its development potential, via utilization of environmental resources efficiently in tropical and subtropical regions. Based on the analytic hierarchy process (AHP) and GIS, this study constructed a suitability analysis model for jackfruit cultivation using four evaluation factors: temperature, precipitation, sunshine hours and soil index. The results of the regionalization are then validated in conjunction with previous research findings and the actual distribution of jackfruit, while further explore the spatial potential for jackfruit cultivation by integrating land use spatial data. The results indicate that the zones able to plant are primarily distributed in tropical and subtropical monsoon climate regions. The suitable zones for planting are mainly found in Hainan, southern Guangxi, southern Guangdong, parts of southern Yunnan and southern Fujian, where there is sufficient heat throughout the year, favorable wintering conditions, and a good combination of light, heat and water. Total plantable area for jackfruit in China is approximately 47.85×104km2, of which 22.71×104km2 is suitable for cultivating, comprising 8.89×104km2 of arable land and 182.05 km2 of unused land. In comparison to previous research findings, this study expanded the amount of potentially viable arable land for jackfruit cultivation by about 58 times the existing cultivating area. Considering comprehensive land use, ecological environment, and policy support, jackfruit has a high potential for production in suitable and relatively suitable arable and unused land in China. Priority should be given to developing suitable planting areas in the southern regions of Guangxi and Yunnan. The study findings could provide scientific and analytic references for optimizing the regional layout and development planning of jackfruit cultivation in China.
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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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