The Guangxi coastal of Beibu Gulf has abundant water resources, but the inter-annual distribution is uneven under the influence of El Niño/La Niña events. The Nanliu River is the largest river located in the costal of Beibu Gulf, Guangxi. Based on SWAT model, the characteristics of blue water, green water flow, and green water storage in typical El Niño/La Niña years in the river basin were quantitatively analyzed. The results show that from 1971 to 2015, the annual average blue water, green water flow, and green water storage in the river basin was 835.0 mm/year, 929.0 mm/year, and 114.0 mm/year, respectively. In the typical El Niño years (1997)/La Niña years (2007), the blue water, green water flow and green water storage in the river basin are 145.7%/51.6%, 92.4%/96.9% and 115.5%/78.3% of the multi-year average, respectively. The El Niño/La Niña event caused a significant increase/decrease in precipitation in the river basin, which mainly affected the amount of blue water. Due to humid climate in the basin, the amount of green water flow was mainly affected by solar radiation and wind speed. The research can provide an important reference for the rational and efficient utilization of water resources and the high-quality development of the region.
| 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 |