基于空間距離指數(shù)的衡陽縣生態(tài)敏感性綜合評價及時空演變分析

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摘要：生態(tài)系統(tǒng)遭受破壞后，其恢復(fù)力及對外界壓力的適應(yīng)性可通過生態(tài)敏感性進行定性評價，這有助于識別地區(qū)生態(tài)環(huán)境問題并為生態(tài)規(guī)劃提供參考。本文以衡陽縣為研究區(qū)，結(jié)合主要生態(tài)環(huán)境問題，綜合評價土地荒漠化、水土流失、滑坡災(zāi)害及凍融侵蝕等的敏感性，探討其時空演變特征，以切實保護區(qū)域生態(tài)環(huán)境。

關(guān)鍵詞：生態(tài)敏感性；綜合評價；時空演變；空間距離指數(shù)；衡陽縣

中圖分類號：X826 文獻(xiàn)標(biāo)識碼：A 文章編號：1008-9500（2023）10-00-03

DOI：10.3969/j.issn.1008-9500.2023.10.012

Analysis on Comprehensive evaluation and spatiotemporal evolution of ecological sensitivity in Hengyang County based on spatial distance index

LUO Yuao， TANG Lixuan， LYU Ziyang

（Solux College of Architecture and Design， University of South China， Hengyang 421001， China）

Abstract： After the ecosystem is damaged， its resilience and adaptability to external pressures can be qualitatively evaluated through ecological sensitivity， which helps identify regional ecological environmental issues and provides reference for ecological planning. Taking Hengyang County as the research area and considering the main ecological and environmental issues， this paper comprehensively evaluates the sensitivity of land desertification， soil erosion， landslide disasters， and freeze-thaw erosion， and explores their spatiotemporal evolution characteristics to effectively protect the regional ecological environment.

Keywords： ecological sensitivity; comprehensive evaluation; spatiotemporal evolution; spatial distance index; Hengyang County

隨著城市化進程的加快和人口規(guī)模的持續(xù)擴大，生態(tài)環(huán)境問題日益突出。（剩余3474字）