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Article

Alpine Wetland Evolution and Their Response to Climate Change in the Yellow-River-Source National Park from 2000 to 2020

1
College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China
2
College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
3
Qinghai Youyuan Space Information Technology Co., Ltd., Xining 810000, China
4
College of Ecological Environment and Resources, Qinghai Minzu University, Xining 810016, China
*
Authors to whom correspondence should be addressed.
Academic Editors: Xiaodong Zhang, Liang Yan and Zhen’an Yang
Water 2022, 14(15), 2351; https://doi.org/10.3390/w14152351
Received: 17 June 2022 / Revised: 24 July 2022 / Accepted: 27 July 2022 / Published: 29 July 2022
(This article belongs to the Special Issue Impact of Climate Change on Wetland Dynamics and Processes)
Clarifying the response of wetland changes to climate change can improve the scientific conservation and utilization capabilities of wetland ecosystems, which is vital for their sustainable development. In this study, the spatial distribution and area changes of the different types of wetlands in the Yellow-River-Source National Park (YRSNP) were obtained using the object-based classification method for the years 2000, 2010, and 2020. The relationship between wetland change and climate factors was investigated by combining grey relation analysis and correlation analysis. The response of wetland change to different climatic factors was consequently clarified. The results showed that the river wetlands and lake wetlands increased significantly from the year 2000 to 2010 (4.04% and 4.21%, respectively). However, the total wetland area demonstrated a decreasing trend (7.08%), primarily due to the significant decrease in the marsh wetlands (6.81%). The total wetland area demonstrated a slightly increasing trend from the year 2010 to 2020 (0.14%), in which river wetlands and lake wetlands increased by 3.25% and 2.09%, respectively, while the marsh wetlands demonstrated a tendency to be stable. From the year 2000 to 2010, 75.53% of precipitation and 27.68% of temperature demonstrated a significant increase and an obvious warm–humid climate trend. However, from the year 2010 to 2020, the trend of increasing precipitation weakened, the temperature decreased slightly, and the warm–humid climate trend was not significant. From the year 2000 to 2020, the YRSNP river wetlands and lake wetlands were significantly and positively correlated with temperature and precipitation, while the marsh wetlands were most affected by climate warming, especially the warm-season temperatures. The spatial–temporal difference was not obvious in the correlation coefficient between marsh wetlands area change and the precipitation and temperature. The results of the study can provide a theoretical basis and technical support for the conservation of wetland ecosystems in the Three-River-Source National Park. View Full-Text
Keywords: wetland changes; climate change; the Yellow-River-Source National Park; grey relation analysis; correlation analysis wetland changes; climate change; the Yellow-River-Source National Park; grey relation analysis; correlation analysis
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MDPI and ACS Style

Ma, T.; She, Y.; Zhao, L.; Hu, B.; Feng, X.; Zhao, J.; Zhao, Z. Alpine Wetland Evolution and Their Response to Climate Change in the Yellow-River-Source National Park from 2000 to 2020. Water 2022, 14, 2351. https://doi.org/10.3390/w14152351

AMA Style

Ma T, She Y, Zhao L, Hu B, Feng X, Zhao J, Zhao Z. Alpine Wetland Evolution and Their Response to Climate Change in the Yellow-River-Source National Park from 2000 to 2020. Water. 2022; 14(15):2351. https://doi.org/10.3390/w14152351

Chicago/Turabian Style

Ma, Tao, Yandi She, Li Zhao, Bixia Hu, Xueke Feng, Jing Zhao, and Zhizhong Zhao. 2022. "Alpine Wetland Evolution and Their Response to Climate Change in the Yellow-River-Source National Park from 2000 to 2020" Water 14, no. 15: 2351. https://doi.org/10.3390/w14152351

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