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Response of Vegetation Cover to Hydrological Features in Naolihe Wetland
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Xi WANG, Jian-wei LIU, Zi-yun WANG
Water Resources and Power | 2023, 41(1) : 18 - 21
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Water Resources and Power | 2023, 41(1): 18-21
• HYDROLOGY, WATER RESOURCES AND ENVIRONMENT •
Response of Vegetation Cover to Hydrological Features in Naolihe Wetland
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Xi WANG, Jian-wei LIU, Zi-yun WANG
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  • School of Hydraulic Engineering, Dalian University of Technology, Dalian 116023, China
Published: 2023-01-25 doi: 10.20040/j.cnki.1000-7709.2023.20220534
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Naolihe National Nature Reserve is located in the hinterland of Heilongjiang Sanjiang Plain and is an important ecological function area in China. Based on remote sensing image data and hydrological data of the protected area, this paper inversed the vegetation coverage by pixel dichotomy, analyzed the spatial and temporal distribution characteristics of vegetation coverage in Naolihe Nature Reserve from 1984 to 2021, and studied the influence of precipitation and flooding frequency on vegetation coverage. Studies have shown that from 1984 to 2021, the low and middle vegetation coverage areas of Naolihe wetland first increased and then decreased, while the middle and high vegetation coverage areas showed the opposite trend. From the correlation coefficient between annual monthly precipitation and monthly vegetation coverage, the vegetation growth in Naolihe Nature Reserve is greatly affected by precipitation, which is positively correlated, and the response of vegetation coverage to precipitation is about one month behind. When the frequency of wetland flooding is between 0.45 and 0.50, the wetland vegetation grows well. The research can provide reference for Nalihe wetland ecological protection.

Nalihe wetland  /  vegetation cover  /  hydrological features  /  NDVI
Xi WANG, Jian-wei LIU, Zi-yun WANG. Response of Vegetation Cover to Hydrological Features in Naolihe Wetland[J]. Water Resources and Power, 2023 , 41 (1) : 18 -21 . DOI: 10.20040/j.cnki.1000-7709.2023.20220534
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20220534
  • Receive Date：2022-03-21
  • Online Date：2026-01-28
  • Published：2023-01-25
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  • Received：2022-03-21
  • Revised：2022-04-25
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    School of Hydraulic Engineering, Dalian University of Technology, Dalian 116023, China
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https://castjournals.cast.org.cn/joweb/sdnykx/EN/10.20040/j.cnki.1000-7709.2023.20220534
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表12种不同金属材料的力学参数
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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