西南林业大学学报2024，Vol.44Issue(7)：54-63,10.DOI:10.11929/j.swfu.202311004
2000-2020年高黎贡山景观生态风险时空演变分析
Spatiotemporal Evolution of Landscape Ecological Risk in the Gaoligong Mountain,2000-2020
摘要
Abstract
In order to reveal the temporal and spatial evolution characteristics of landscape ecological risk in Gaoligong Mountain,based on the ecosystem types data from 2000,2005,2010,2015,and 2020 in the Gaoligong Mountain region,the ecological risk assessment model consists of landscape disturbance and landscape vulnerab-ility.Ecological risk assessment of the region is conducted at a grid scale to analyze its spatiotemporal character-istics.The results show that the study area is dominated by forests,accounting for more than 45％of the total area of the study area,from 2000 to 2020,the average ecological risk of the landscape has decreased by 19.60％,show-ing a characteristic of"low and relatively low ecological risk distribution as the main pattern,with forest distribu-tion as the dominant factor of low risk".The overall spatial pattern of landscape ecological risk exhibits a low-risk aggregation area centered on the northeast and southwest,and a high-risk aggregation area centered on the north-west and southeast,with a cross-distribution,the centroid of ecological risk shows a migration characteristic of low-grade"northward"and medium-high-grade"southward".In the study period,the landscape ecological risk mainly shows as low-low aggregation areas,accounting for more than 56％of the significantly changed area,in-dicating a low possibility of drastic changes in local risk.The research results can provide a scientific evidence for optimizing the landscape pattern and preventing ecological risks in the Gaoligong Mountain region.关键词
高黎贡山/生态系统/生态风险/格网化/时空演变Key words
Gaoligong Mountain/ecosystem/ecological risk/gridding/spatiotemporal evolution分类
生物科学引用本文复制引用
杨靖,段禾祥,宋福强,王珺,任正涛,姜志诚,陈异晖..2000-2020年高黎贡山景观生态风险时空演变分析[J].西南林业大学学报,2024,44(7):54-63,10.基金项目
云南省重点研发计划项目(2019BC001)资助. （2019BC001）
