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| 基于MODIS-EVI的四川植被覆盖度空间分布影响因子探测 |
| Influence Factors on Spatial Distribution of Vegetation Coverage in Sichuan Based on MODIS EVI |
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| DOI： |
| 中文关键词: 植被覆盖度 空间分布 影响因子 MODIS-EVI 地理探测器 四川 |
| 英文关键词: Vegetation coverage Spatial distribution Influencing factor MODIS EVI Geodetector Sichuan |
| 基金项目:国家自然科学基金资助重点项目（41830648）；四川旅游发展研究中心基金资助项目（LY24-17）；沱江流域高质量发展研究中心基金资助项目（TJGZL2024-11）；乐山师范学院科研基金资助项目（XJR19006，KYPY2023-0030） |
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| 摘要点击次数: 64 |
| 全文下载次数: 25 |
| 中文摘要: |
| 以四川为研究区，基于2000—2015年MODIS-EVI数据，采用像元二分模型、分布指数和地理探测器定量分析地形、生态及人为因子对不同地貌区植被覆盖度空间分布的影响。结果表明，四川植被覆盖度以中覆盖度为主，主要分布在盆地丘陵、山地和巫山、大娄山，低覆盖度主要分布在西昌和雅砻江，高覆盖度主要分布在盆西平原、米仓山、大巴山、峨眉山、凉山、龙门山和若尔盖，劣覆盖度主要分布在石渠色达、沙鲁里山和金沙江东岸，无植被覆盖主要分布在岷山、邛崃山和贡嘎山。盆地平原及周围丘陵、低山区域植被覆盖度主要受土地利用类型、GDP和人口密度影响，盆地周围中高山区域植被覆盖度主要受高程和年均气温影响，川西南区域植被覆盖度主要受高程和土地利用类型影响 |
| 英文摘要: |
| Taking Sichuan as the research area， based on MODIS EVI data from 2000 to 2015， the influence of terrain， ecology and human factors on the spatial distribution of vegetation coverage in different geomorphic areas was quantitatively analyzed by using pixel dichotomy model， distribution index and geodetector. The results showed that the vegetation in Sichuan was mainly of medium coverage and distributed in basin hills， mountains， Wushan and Daloushan. Low vegetation coverage area mainly distributed in Xichang and Yalong River. High coverage area mainly distributed in the western plain of the basin， Micang Mountain， Daba Mountain， Emei Mountain， Liangshan Mountain， Longmen Mountain and Zoige. Poor coverage area mainly distributed in Shiqu Seda， Shaluli Mountain 〖GK!86mm〗and the east bank of Jinsha River. No vegetation area mainly distributed in Minshan， Qionglai Mountain and Gongga Mountain. The vegetation coverage in the basin plain and its surrounding hills and low mountains was mainly affected by land use type， GDP and population density. The vegetation coverage in the medium and high mountain areas around the basin was mainly affected by elevation and average annual 〖HK〗temperature. The vegetation coverage in southwest of Sichuan was mainly affected by elevation and land use type. |
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