| 邛崃山生态环境及生物多样性遥感监测评价 |
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| 引用本文： | 王姝,苑跃,杨杰.邛崃山生态环境及生物多样性遥感监测评价[J].高原山地气象研究,2021,41(2):135-142. |
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| 作者姓名： | 王姝 苑跃 杨杰 |
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| 作者单位： | 四川省气象灾害防御技术中心，成都 610072 |
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| 基金项目： | 四川省科技计划重点研发项目（2020YFS0441） |
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| 摘 要： | 为了解邛崃山生态保护红线区生态环境及生物多样性维护状况，利用卫星遥感和地形数据，运用主成分分析法，建立遥感生态指数和生物多样性维护功能指数模型，对邛崃山生态保护红线区2000~2019年生态环境状况和生物多样性状况开展监测评估。结果表明:就遥感生态指数而言，近20a区域平均值为0.642~0.680，红线区南部多为高值区，北部多为低值区，评价等级为优的区域面积呈明显上升趋势，东北部及西南部的低值区略有扩大，呈弱恶化趋势；就生物多样性维护功能指数而言，近20a区域平均值为0.482~0.522，红线区南部多为高值区，北部多为低值区，多样性功能整体表现为缓慢增强，其中功能评价等级为强的区域面积呈显著增长趋势，而东北部功能等级改善效果不明显；邛崃山生态保护红线区生态环境状况整体较好，南部优于北部，生态环境状况和生物多样性大部分区域有所提升，小部分区域有所下降。
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| 关 键 词： | 生态保护红线区 遥感生态指数 生物多样性 主成分分析 邛崃山 |
| 收稿时间： | 2021-07-16 |
Remote Sensing Monitoring and Evaluation of Ecological Environment and Biodiversity in Qionglai Mountain |
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| Institution: | Sichuan Meteorological Disaster Prevention Technology Center, Chengdu 610072, China |
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| Abstract: | In order to understand the ecological environment and biodiversity maintenance status in the ecological protection red line area of Qionglai Mountain, with satellite remote sensing and topography data, using principal component analysis, the remote sensing ecological index (RSEI) and the biodiversity maintenance function index (BMI) are established. The model is used to monitor and evaluate the ecological environment and biodiversity of the Qionglai Mountain Ecological Protection Redline Area from 2000 to 2019. The results show that the regional average of RSEI from 2000 to 2019 is between 0.642 and 0.680. The southern part of the red line area is mostly high-value area, and the northern part is mostly low-value area. The area with excellent RSEI evaluation level shows a clear upward trend, and the low-value area in the northeast and southwest expand slightly, showing a weak deterioation trend. In terms of biodiverisy maintenance function index, the regional average value is from 0.482 to 0.522 in recent 20 years. The southern part of the red line area is mostly high-value area, and the northern part is mostly low-value area. The overall diversity function showed a slow enhancement. The area with storong functional evaluation grade showed a significant growth trend. In general, the ecological environment and biodiversity of the Qionglai Mountain Ecological Protection Redline Area have improved in most areas, and declined in a small part. |
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