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| 基于RSEI模型的祁连山自然保护区生态环境质量评价 |
| Ecological Environment Quality Evaluation of Qilian Mountain Nature Reserve Based on RSEI Model |
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| DOI： |
| 中文关键词: 遥感生态指数 生态环境质量 动态监测 祁连山自然保护区 |
| 英文关键词: Remote sensing ecological index(RSEI) Ecological environment quality Dynamic monitoring Qilian Mountain Nature Reserve |
| 基金项目:青海省自然科学基金资助项目(2021-ZJ-905) |
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| 中文摘要: |
| 基于1988—2018年祁连山国家自然保护区的Landsat系列遥感影像，利用绿度、湿度、热度和干度指标计算获得遥感生态指数(RSEI)，并应用RSEI对保护区近30年的生态环境质量作评价。结果表明：近30年来该保护区生态环境质量整体呈好转趋势，RSEI上升0.016，可1998—2018年生态环境质量有所下降；生态环境质量改善区域多位于保护区西北角和东南角，保护区中段和外围生态环境质量有所下降；应重点在2 km～4 km高程区保护植被生长，减少人类活动破坏。 |
| 英文摘要: |
| Based on Landsat series remote sensing images of Qilian Mountain National Nature Reserve from 1988 to 2018, remote sensing ecological index (RSEI) was calculated by greenness, humidity, heat, dryness, and applied to evaluate the eco-environmental quality of the reserve in recent 30 years. The results showed that in the past 30 years, the overall eco-environmental quality of the reserve had an improving trend, with RSEI rising by 0.016, but the eco-environmental quality decreased from 1998 to 2018. The ecological environment quality improvement areas were mostly in the northwest and southeast corners of the reserve, but the ecological environment quality decreased in the middle and periphery of the reserve. It was necessary to protect vegetation growth in the elevation area of 2 km～4 km and reduce damage caused by human activities. |
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