人类活动对辽河三角洲滨海湿地演变的影响机制

IF 2.4 3区环境科学与生态学 Q2 ECOLOGY

Frontiers in Ecology and Evolution Pub Date : 2024-07-02 DOI:10.3389/fevo.2024.1423234

Qinghai Deng, Xinming Zhang, Liping Zhang, Xin Shao, Tianshuo Gu

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引用次数: 0

摘要

引言本研究旨在探讨人类活动对辽河三角洲沿岸湿地演变的影响。方法利用 Landsat 系列遥感影像对 1995-2020 年辽河沿岸湿地的演变进行定量分析。结果研究结果表明，1995-2020 年辽河三角洲沿岸湿地面积呈波动下降趋势。三角洲的东部和西部由于人类活动对湿地景观的干扰较大，而北部和南部主要是水域和芦苇地，人类活动干扰程度较小。人类活动使农田、池塘、水稻田、建设用地、芦苇地等发生了显著变化，从而促进了滨海湿地的演化。讨论本文讨论了研究区景观格局演化的特点，以及人为干扰、经济、政策等因素对其的影响，并与中国其他滨海湿地的演化格局进行了比较。研究区景观格局的变化主要体现在自然湿地面积的减少和破碎化，这与人类活动，尤其是建筑业和农业的发展密切相关。主要表现在经济方面，由于经济和城市发展对土地需求的增加，导致自然湿地转变为建设用地和其他人工景观。湿地保护法》等法规的实施，促进了湿地的合理利用和生态恢复，也体现了政策因素的影响。与其他研究相比，中国滨海湿地普遍面临退化和流失问题，主要由人类活动造成，但也受到海平面上升、海岸线变化、气候变化等自然因素的影响。

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The impact mechanism of human activities on the evolution of coastal wetlands in the Liaohe River Delta

IntroductionThis study aims to investigate the impact of human activities on the evolution of coastal wetlands in the Liaohe River Delta. Understanding these impacts is crucial for the management, protection, and sustainable development of the ecological environment in the region.MethodsQuantitative analysis of the evolution of coastal wetlands along the Liaohe River from 1995 to 2020 using Landsat series remote sensing images. This study examines the changes in different landscapes and explores the impact of human activities on wetlands through methods such as land transfer matrix, landscape pattern index, and human activity hotspots.ResultsThe results show that the area of coastal wetlands in the Liaohe River Delta exhibited a fluctuating downward trend from 1995 to 2020. The eastern and western parts of the delta experienced greater disturbance to wetland landscapes due to human activities, while the northern and southern parts were mostly waters and reed lands with a smaller degree of human disturbance. Human activities have led to significant changes in farmland, ponds, rice paddies, construction land, and reed fields, thereby promoting the evolution of coastal wetlands.DiscussionThis article discusses the characteristics of landscape pattern evolution in the study area, as well as the impact of human interference, economy, policies, and other factors on it, and compares it with the evolution patterns of other coastal wetlands in China. The changes in the landscape pattern of the study area are mainly reflected in the reduction and fragmentation of natural wetland areas, which are closely related to human activities, especially the development of construction and agriculture. The main economic manifestation is that the increase in land demand due to economic and urban development has led to the transformation of natural wetlands into construction land and other artificial landscapes. The implementation of regulations such as the Wetland Protection Law has contributed to the rational use and ecological restoration of wetlands, and also reflects the influence of policy factors. Compared with other studies, coastal wetlands in China generally face issues of degradation and loss, mainly caused by human activities, but also affected by natural factors such as rising sea levels, changes in coastlines, and climate change.

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来源期刊

Frontiers in Ecology and Evolution Environmental Science-Ecology

CiteScore

4.00

自引率

6.70%

发文量

1143

审稿时长

12 weeks

期刊介绍： Frontiers in Ecology and Evolution publishes rigorously peer-reviewed research across fundamental and applied sciences, to provide ecological and evolutionary insights into our natural and anthropogenic world, and how it should best be managed. Field Chief Editor Mark A. Elgar at the University of Melbourne is supported by an outstanding Editorial Board of international researchers. This multidisciplinary open-access journal is at the forefront of disseminating and communicating scientific knowledge and impactful discoveries to researchers, academics and the public worldwide. Eminent biologist and theist Theodosius Dobzhansky’s astute observation that “Nothing in biology makes sense except in the light of evolution” has arguably even broader relevance now than when it was first penned in The American Biology Teacher in 1973. One could similarly argue that not much in evolution makes sense without recourse to ecological concepts: understanding diversity — from microbial adaptations to species assemblages — requires insights from both ecological and evolutionary disciplines. Nowadays, technological developments from other fields allow us to address unprecedented ecological and evolutionary questions of astonishing detail, impressive breadth and compelling inference. The specialty sections of Frontiers in Ecology and Evolution will publish, under a single platform, contemporary, rigorous research, reviews, opinions, and commentaries that cover the spectrum of ecological and evolutionary inquiry, both fundamental and applied. Articles are peer-reviewed according to the Frontiers review guidelines, which evaluate manuscripts on objective editorial criteria. Through this unique, Frontiers platform for open-access publishing and research networking, Frontiers in Ecology and Evolution aims to provide colleagues and the broader community with ecological and evolutionary insights into our natural and anthropogenic world, and how it might best be managed.