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胡露瑶,代俊峰,郑文俊,齐姗姗,莫建英.基于InVEST模型的漓江流域景观格局及生境质量时空演变分析[J].广西科学,2024,31(6):1156-1167. [点击复制]
- HU Luyao,DAI Junfeng,ZHENG Wenjun,QI Shanshan,MO Jianying.Spatiotemporal Evolution Analysis of Landscape Pattern and Habitat Quality in the Lijiang River Basin Based on the InVEST Model[J].Guangxi Sciences,2024,31(6):1156-1167. [点击复制]
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| 基于InVEST模型的漓江流域景观格局及生境质量时空演变分析 |
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胡露瑶1,2, 代俊峰1, 郑文俊3, 齐姗姗4, 莫建英5
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| (1.桂林理工大学, 广西环境污染控制理论与技术重点实验室, 广西桂林 541006;2.桂林旅游学院, 广西生态环境与景观保护研究中心, 广西桂林 541006;3.桂林理工大学旅游与风景园林学院, 广西桂林 541006;4.桂林市环境保护科学研究所, 广西桂林 541002;5.桂林水文中心, 广西桂林 541001) |
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| 摘要: |
| 流域生境常受到自然环境与人类活动相互作用的影响，脆弱的生态平衡极易被打破，研究流域生境质量变化对受损生境的重建具有重要意义。本研究基于ArcGIS 10.8软件和生态系统服务与权衡综合评估(Integrated Valuation of Ecosystem Services and Tradeoffs，InVEST)模型，对漓江流域1990-2020年景观格局与生境质量进行评估，利用空间分析方法探究其时空格局变化特征及相关性。结果表明：(1)1990-2020年漓江流域总体景观格局以耕地、林地为主，占比超过80%，耕地占比从23.88%下降到22.75%，其中大部分转化为建设用地，景观格局趋于破碎化，景观复杂程度不断增加；(2)从流域整体分析，生境质量总体处于中等以上水平，呈现逐年下降趋势，低生境质量区域面积有所扩大，特别是在流域中部核心区，生境质量的下降趋势明显，生境质量与聚集度指数(AI)、香农多样性指数(SHDI)、水域和林地面积均存在较强的相关性。经过生态环境治理，漓江流域的景观生态格局得以改善，有效抑制了生境质量的退化。漓江流域生态环境治理可为河流生态系统的综合治理和生态修复提供科学参考。 |
| 关键词: 生境质量 景观格局 时空动态变化 漓江流域 |
| DOI：10.13656/j.cnki.gxkx.20241207.010 |
| 投稿时间：2024-06-30修订日期：2024-09-22 |
| 基金项目:广西重点研发计划项目“生态水文调控下的岩溶湿地固碳减排技术研究与示范”(桂科AB23026045)和广西哲学社会科学研究课题“漓江流域乡村景观遗产价值识别及其活化利用路径研究”(22FMZ027)资助。 |
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| Spatiotemporal Evolution Analysis of Landscape Pattern and Habitat Quality in the Lijiang River Basin Based on the InVEST Model |
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HU Luyao1,2, DAI Junfeng1, ZHENG Wenjun3, QI Shanshan4, MO Jianying5
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| (1.Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin, Guangxi, 541006, China;2.Guangxi Research Center for Ecological Environment and Landscape Protection, Guilin Tourism University, Guilin, Guangxi, 541006, China;3.College of Tourism & Landscape Architecture, Guilin University of Technology, Guilin, Guangxi, 541006, China;4.Guilin Institute of Environmental Protection Science, Guilin, Guangxi, 541002, China;5.Guilin Hydrology Center, Guilin, Guangxi, 541001, China) |
| Abstract: |
| The habitat of a river basin is often affected by the interaction between natural environments and human activities,which make its fragile ecological balance easily disrupted.Studying changes in habitat quality of river basins is crucial for the restoration of damaged habitats.ArcGIS10.8 and the Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST) model were employed to evaluate the landscape pattern and habitat quality of the Lijiang River Basin from 1990 to 2020.The characteristics and correlations of spatiotemporal pattern changes were explored by spatial analysis.The results were described as follows:(1) From 1990 to 2020,the overall landscape pattern of the Lijiang River Basin was dominated by arable land and forest land,which accounted for over 80%.The proportion of arable land decreased from 23.88% to 22.75%,with most of it being converted to construction land,which led to a trend towards landscape fragmentation and increased landscape complexity.(2)On a basin-wide scale,the habitat quality was generally at a medium to high level.The average quality of habitats in 1990,2000,2010,and 2020 were 0.71,0.71,0.70,and 0.68,respectively,showing a declining trend.Low-quality areas continued to increase.Particularly,the habitat quality decline was obvious in the central core area of the basin.Habitat quality was strongly correlated with the Aggregation Index (AI),Shannon-Wiener Diversity Index (SHDI),and the areas of water and forest land.Under the influence of eco-environment management,the landscape pattern of the Lijiang River Basin has improved,with effective curbing of habitat degradation.The findings provide a scientific reference for the comprehensive management and ecological restoration of river ecosystems. |
| Key words: habitat quality landscape pattern spatiotemporal dynamic changes Lijiang River Basin |
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