Full
Outline
The third category mineral resources in Yunnan Province are relatively few, with uneven distribution of existing resources and differences in infrastructure construction time and space, resulting in tight supply of sand and gravel aggregates during peak construction periods in some areas. At the same time, affected by the ecological protection red line in Yunnan Province, it is difficult to establish new mining rights for sand and gravel in some areas. Counties (cities, districts) with scarce resources need to import resources from neighboring areas, greatly increasing the cost of using sand and gravel aggregates. In order to efficiently utilize resources and alleviate the pressure of uneven supply of sand and gravel aggregates in local areas, based on relevant laws, regulations, and policy documents, and referring to the experiences of other provinces in classifying third category minerals, field research and evaluation were conducted from three aspects, including resource endowment, market economy, and existing usage. Finally, five mineral types including granite, basalt, dolomite, tuff, and sandstone (other) have been added as the third category minerals. The added mineral types can be used as a supplement to mineral resources in resource deficient areas, while reducing mining management risks and minimizing illegal mining activities, which is conducive to the development and utilization of sand and gravel mineral resources.
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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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