| 四川大雪山生态红线区生态环境评价与气候变化分析 |
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| 引用本文： | 张亮,苑跃,杨杰,孙蕊,王姝.四川大雪山生态红线区生态环境评价与气候变化分析[J].高原山地气象研究,2022,42(2):129-136. |
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| 作者姓名： | 张亮 苑跃 杨杰 孙蕊 王姝 |
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| 作者单位： | 1.高原与盆地暴雨旱涝灾害四川省重点实验室，成都 610072 |
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| 基金项目： | 高原与盆地暴雨旱涝灾害四川省重点实验室科技发展基金项目（SCQXKJQN2020044）；四川省科技计划项目重点研发项目（2020YFS0441） |
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| 摘 要： | 基于卫星产品和地面气象观测数据，构建遥感生态指数（Remote Sensing Ecological Environment Index，RSEI）和生物多样性维护功能指数（Biodiversity Maintenance Function Index，BMI），对 2000~2019年大雪山生态红线区的生态环境状况和生物多样性维护功能进行评价，并分析了红线区气候变化特征。结果表明:（1）2000~2019年红线区生态环境状况总体呈变好趋势，RSEI一般及以上等级所占的面积比例达90%。红线区内生态环境状况区域差异明显，北部和中部生态环境较好，东南部生态环境较差。（2）2000~2019年红线区生物多样性功能持续改善，BMI一般及以上等级所占的面积比例达84.912%。红线区内BMI一般及以上等级主要位于北部、中部和西部部分地区，差和较差等级主要分布于东南部地区。（3）1990年以来，大雪山红线区显著增暖，降水充足，日照略增，风速略减。暖湿气候条件有利于红线区生态的恢复，使生态环境状况和生态功能趋于好转。
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| 关 键 词： | 大雪山 生态环境状况 生物多样性 气候变化 |
| 收稿时间： | 2021-09-16 |
Ecological Environment Assessment and Climate Change Analysis of Daxue Mountains Ecological Red Line Area in Sichuan |
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| Institution: | 1.Heavy Rain and Drought-Flood Disasters in Plateau and Basin Key Laboratory of Sichuan Province, Chengdu 610072, China2.Sichuan Meteorological Disaster Prevention Technology Centre, Chengdu 610072, China3.Sichuan Provincial Climate Centre, Chengdu 610072, China |
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| Abstract: | Based on satellite remote sensing data and meteorological data, remote sensing ecological environment index (RSEI) and biodiversity maintenance function index (BMI) were constructed to evaluate the ecological environment condition and the biodiversity maintenance function of Daxue Mountains ecological red line area from 2000 to 2019, and the climate change characteristics in the red line area were also analyzed. The results showed that: (1) From 2000 to 2019, the overall ecological environment showed a good trend, and the area proportion of RSEI level of general and above reached to 90%. There were obvious differences of ecological environment condition in the red line area. The ecological environment in the north and central areas was good, and the ecological environment in the southeast was poor. (2) From 2000 to 2019, the biodiversity function in the red line area continued to improve, and the area proportion of BMI level of general and above reached to 84.912%. The distribution of BMI of generally or above level was mainly located in the northern, central and western parts in the red line area, and the distribution of poor and worse level was mainly located in the southeast of the red line area. (3) Since 1990, there has been an aboriginal warming, sufficient precipitation, a slight increase in sunshine and a slight decrease in wind speed in the red line area of the Daxue Mountains. Warm and humid climate conditions are conducive to the ecological restoration of the red line area, and the ecological environment and ecological functions tend to improve. |
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