| 李清泉,徐金鸿.基于SRP 模型的綦江流域(重庆段) 生态脆弱性评价[J].林业调查规划,2025,50(4):76-84 |
| 基于SRP 模型的綦江流域(重庆段) 生态脆弱性评价 |
| Ecological Vulnerability Assessment of the Qijiang River Basin(Chongqing Section) Based on the SRP Model |
| |
| DOI： |
| 中文关键词: 生态脆弱性 SRP模型 层次分析法 变异系数法 綦江流域(重庆段) |
| 英文关键词: ecological vulnerability SRP model analytic hierarchy process coefficient of variation
method Qijiang River Basin (Chongqing section) |
| 基金项目:中央财政林业科技推广示范项目(云〔2022〕TG15 号,云〔2024〕TG29 号). |
|
| 摘要点击次数: 792 |
| 全文下载次数: 305 |
| 中文摘要: |
| 为探究綦江流域(重庆段)生态脆弱性状况,基于SRP模型,选取高程等14个评价指标,利用层次分析法与变异系数法联合确定指标权重,进行生态脆弱性评价。结果表明,区域内生态敏感性不高,中度和重度区主要分布在东部和西北部,主要影响要素为植被覆盖度和土地利用类型;生态
恢复力潜在和轻微脆弱区占比超过1/2,中度和重度区主要分布在西部和綦江沿岸,主要影响要素为景观破碎度;生态压力度的中度和重度区在中部、南部和西部,西北部有少许分布,主要影响要素
为人口分布;区域生态脆弱性较低,中度和重度脆弱区主要分布在中部、南部和东部,主要影响要素为人口分布和景观破碎度。生态压力度准则占主导作用。 |
| 英文摘要: |
| To investigate the ecological vulnerability of the Qijiang River Basin(Chongqing section), an
assessment was conducted based on the SRP model, selecting 14 evaluation indicators such as elevation.
The weights of the indicators were determined using a combination of the analytic hierarchy process and
the coefficient of variation method. The results indicate that the ecological sensitivity in the study area is
generally low, with moderate and severe zones mainly distributed in the eastern and northwestern regions,
primarily influenced by vegetation coverage and land use type. The potential and slightly vulnerable zones
of ecological resilience account for more than half of the area, while moderate and severe zones are mainly
located in the western region and along the Qijiang River, with landscape fragmentation being the dominant
influencing factor. Moderate and severe ecological pressure zones are concentrated in the central, southern,
and western regions, with some distribution in the northwest, primarily affected by population distribution.
Overall, the ecological vulnerability of the region is relatively low, with moderate and severe vulnerability zones mainly distributed in the central, southern, and eastern regions, primarily influenced by population
distribution and landscape fragmentation, with ecological pressure being the dominant criterion. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
