Land-use change is an important part of global change and has a profound impact on the value of ecosystem services. Based on the land use data of 2010,2015 and 2020 in Dingbian County of Yulin City, the time and space was analyzed, the change of ecosystem service value was evaluated by equivalent factor method, and the spatial distribution characteristics was studied by Arcgis spatial analysis. The results show that the main land types in Dingbian County are cultivated land and grassland, in which the area of cultivated land and grassland is continuously decreasing, and the area of water area and construction land is increasing, and the degree of change of single land use type is shown as follows: water> construction land> wetland> grassland> woodland> cultivated land>unused land. ESV(ecosystem service value) from 2010 to 2020,2020 increased by 181 million yuan over 2010, in which the ESV increment of water is more significant, and the ESV of cultivated land and grassland decreases more. From the perspective of individual ESV, climate regulation and hydrological regulation are mainly used.
| 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 |