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The health of the water cycle is a key factor in high-quality regional development. The prediction of water cycle health state is of great significance to the coordinated development of regional water resources system, economic and social system and ecological environment system. Taking Zhengzhou City as a typical research area, this study constructed a DPSIR model for urban water cycle health evaluation, and analyzed the evolution process of water cycle health status in Zhengzhou from 2010 to 2020 by using entropy weight fuzzy comprehensive evaluation method. The system dynamics model and entropy weight fuzzy comprehensive evaluation method were used to predict the health status of water cycle in Zhengzhou from 2021 to 2030 under five types of comprehensive coordination type, economic development type and water resources optimization type. The results show that the health status of water cycle in Zhengzhou has been developing well in the past decade, and the indicators of per capita GDP, urbanization rate and intelligent water resources management have reached the "healthy" state. Under the five prediction scenarios, the urban water cycle reaches the state of "subhealth" or above, and under the comprehensive coordination scenario that takes into account economic development, ecological protection and water resources optimization, the water cycle health status of Zhengzhou reaches the state of " health", and this scheme is the optimal scheme. The results can provide theoretical basis and technical support for ecological protection and high quality development in Zhengzhou City.
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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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