首页|基于GlobeLand 30的柬埔寨森林覆被变化及影响因素分析

基于GlobeLand 30的柬埔寨森林覆被变化及影响因素分析

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柬埔寨境内丰富的森林资源对湄公河流域生态安全具有重要意义.鉴于此,基于GlobeLand 30数据,采用森林覆盖率、景观格局指数等指标分析柬埔寨森林流失情况;并采用多元线性回归方法分析影响柬埔寨森林流失的主要因素.研究发现:(1)2000-2020年柬埔寨森林面积从104 009.92 km2减少至89 702.30 km2,覆盖率由57.45%降至49.55%.高原和山地地区森林减少最显著,面积减少8 002.87 km2,覆盖率下降11.36%.土地利用转移分析显示,84.85%森林保持不变,12.90%转为耕地.(2)森林景观破碎化加剧,最大斑块指数下降.(3)回归分析表明,人口增长和耕地面积增加是森林流失的主要驱动因素.建议柬埔寨政府加强森林法规管理,遏制滥砍滥伐;积极发展工业、生态旅游等,促进经济多元化,创造更多非农业就业机会,降低森林转耕地压力.
Forest land cover changes and influencing factors in Cambodia based on GlobeLand 30
The extensive forest resources within Cambodia are pivotal to the ecological integri-ty of the Mekong River basin.This study,utilizing GlobeLand 30 data,investigates the dynam-ics of forest loss in Cambodia through the lens of forest cover and landscape pattern indices.Furthermore,a multiple linear regression analysis is conducted to elucidate the principal determi-nants of forest depletion.The empirical results indicate that:(1)Over the period between 2000 and 2020,Cambodia's forest expanse contracted from 104 009.92 to 89 702.30 square kilome-ters,accompanied by a reduction in coverage from 57.45%to 49.55%.Notably,the plateau and mountainous terrains witnessed the most pronounced deforestation,with a net loss of 8 002.87 square kilometers and a corresponding decline in coverage by 11.36%.Land use transition anal-ysis reveals that 84.85%of the forested area remained stable,whereas 12.90%was reallocated to agricultural purposes.(2)The fragmentation of forested landscapes has escalated,evidenced by a widespread diminution in the largest patch index.(3)The regression analysis underscores population expansion and the augmentation of arable land as the predominant catalysts for forest attrition.It is suggested that the Cambodian government should fortify forest governance and en-forcement to mitigate deforestation.At the same time,fostering economic diversification through the advancement of industries,ecotourism,and other non-agricultural sectors could gen-erate alternative employment avenues,thereby alleviating the impetus for forest conversion to farmland.

Cambodiaforest cover dynamicsland useGlobeLand 30forest loss

李敏、褚劲风、李仙德

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上海师范大学环境与地理科学学院,上海 200234

上海开放大学,上海 200443

柬埔寨 森林覆被变化 土地利用 GlobeLand 30 森林流失

华东师范大学科技创新与发展战略研究中心开放课题

202101

2024

世界地理研究
中国地理学会

世界地理研究

CSTPCDCHSSCD北大核心
影响因子:1.232
ISSN:1004-9479
年,卷(期):2024.33(9)
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