Evaluating Ecosystem Service Value Changes in Mangrove Forests in Guangxi, China, from 2016 to 2020

Remote. Sens. Pub Date : 2024-01-27 DOI:10.3390/rs16030494

Kedong Wang, M. Jia, Xiaohai Zhang, Chuanpeng Zhao, Rong Zhang, Zongming Wang

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Abstract

Mangrove forests play a vital role in maintaining ecological balance in coastal regions. Accurately assessing changes in the ecosystem service value (ESV) of these mangrove forests requires more precise distribution data and an appropriate set of evaluation methods. In this study, we accurately mapped the spatial distribution data and patterns of mangrove forests in Guangxi province in 2016 and 2020, using 10 m spatial resolution Sentinel-2 imagery, and conducted a comprehensive evaluation of ESV provided by mangrove forests. The results showed that (1) from 2016 to 2020, mangrove forests in Guangxi demonstrated a positive development trend and were undergoing a process of recovery. The area of mangrove forests in Guangxi increased from 6245.15 ha in 2016 to 6750.01 ha in 2020, with a net increase of 504.81 ha, which was mainly concentrated in Lianzhou Bay, Tieshan Harbour, and Dandou Bay; (2) the ESV of mangrove forests was USD 363.78 million in 2016 and USD 390.74 million in 2020; (3) the value of fishery, soil conservation, wave absorption, and pollution purification comprises the largest proportions of the ESV of mangrove forests. This study provides valuable insights and information to enhance our understanding of the relationship between the spatial pattern of mangrove forests and their ecosystem service value.

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中国广西红树林生态系统服务价值变化评估（2016-2020 年

红树林在维持沿海地区生态平衡方面发挥着至关重要的作用。准确评估这些红树林生态系统服务价值（ESV）的变化需要更精确的分布数据和一套合适的评估方法。本研究利用空间分辨率为 10 m 的 Sentinel-2 影像，精确绘制了 2016 年和 2020 年广西红树林的空间分布数据和格局，并对红树林提供的生态系统服务价值进行了综合评估。结果表明：(1) 从 2016 年到 2020 年，广西红树林呈现出良好的发展态势，正处于恢复过程中。广西红树林面积从 2016 年的 6245.15 公顷增加到 2020 年的 6750.01 公顷，净增 504.81 公顷，主要集中在廉州湾、铁山港和丹斗湾；（2）2016 年红树林的 ESV 为 3.6378 亿美元，2020 年为 3.9074 亿美元；（3）红树林的 ESV 中，渔业价值、水土保持价值、海浪吸收价值和污染净化价值所占比例最大。这项研究为我们进一步了解红树林空间格局与其生态系统服务价值之间的关系提供了宝贵的见解和信息。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Remote. Sens.

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