PDF
Full
Outline
By investigating the historical meteorological data, disaster situation data and disaster bearing body information during 1951-2020, this paper establishes a risk survey database to accurately evaluate the hazard of rainstorm disaster in Changsha County of Hunan Province. Comprehensively considering the impact of multiple meteorological disaster causing factors of rainstorm disaster and inducing environment such as geology and drainage network of watershed, this paper carries out the analysis of basic characteristics of rainstorm and risk assessment of disaster, and forms a risk assessment model. Geological disasters in Changsha County mainly occur in the northeast of Changsha County. The urban waterlogging disaster mainly affects the county seat and the surrounding areas with high urbanization. Mountain torrents mainly affect the central and northern areas of Changsha County. The risk of rainstorm disaster in Changsha County tends to weaken from the southeast and northeast to the middle. Generally speaking, the risk of rainstorm in the whole county is not high, only Kaihui Town, Gaoqiao Town and Huanghua town are high-risk, and rainstorm events are easy to cause secondary disasters in these three towns. There are two relatively high value centers in the county, which are located in Huanghua town and Jiangbei town in the southeast and Kaihui town and Gaoqiao Town in the north. The comprehensive risk level of rainstorm in Ansha Town, Guoyuan Town, Chunhua Town and urban area in the middle is low.
PDF
101
23
| 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 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62199257
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
