| 刘飞,顾康康.基于压力－状态－响应模型的引江济淮工程安徽段沿线区域生态安全评价[J].安徽建筑大学学报,2022,30(): |
| 基于压力－状态－响应模型的引江济淮工程安徽段沿线区域生态安全评价 |
| Regional ecological security assessment of Anhui section of Yangtze River to Huaihe River Diversion Project Based on pressure state response model |
| 投稿时间：2021-06-16 修订日期：2021-10-26 |
| DOI： |
| 中文关键词: PSR模型 引江济淮工程安徽段沿线区域 AHP-熵权法 生态安全评价 |
| 英文关键词: ：PSR model The area along the Anhui section of the Yangtze River to Huaihe River Diversion Project AHP entropy weight method Ecological security assessm |
| 基金项目:安徽省自然科学基金面上项目 |
|
| 摘要点击次数: 1496 |
| 全文下载次数: 424 |
| 中文摘要: |
| 生态安全评价是评估生态环境是否健康安全的一种可行性的研究方法，以引江济淮工程安徽段沿线区域为例，基于PSR（压力－状态－响应）模型构建生态安全评价指标体系，运用层次分析法（AHP）和熵权法分别对选取的20个评价指标因子赋权得到权重值，进行权重值的组合,然后计算生态安全等级，进而对引江济淮工程安徽段沿线区域的生态安全进行评价研究。结果表明：①引江济淮工程安徽段沿线部分地区仍处于不安全-较不安全等级，生态安全指数的分布存在一定的空间差异，人类活动是研究区部分地区生态压力指数偏高的主要影响因素。②PM2.5年排放总量、土地胁迫指数、生境质量指数、水网密度指数、植被覆盖度、年总降雨量、地形坡度、造林面积是影响引江济淮工程安徽段沿线区域生态安全的主要因素。③人口密度大和发展速度快的城市生态安全指数较高而发展缓慢的城市生态安全指数反而较低，这与城市是否大力推行生态保护政策有很大的关联性。 |
| 英文摘要: |
| Ecological security evaluation is a feasible research method for assessment of health and security of the ecological environment. With the example of the Anhui section in Yangtze-to-Huaihe Water Diversion Project, an ecological security evaluation index system is established based on the pressure-state-response model and then, weighted values of the selected 20 evaluation index factors are determined through the analytic hierarchy process and entropy weight method. Finally, by combination of the weighted values, classes of ecological security were computed for further evaluation research on the elocogical security of Anhui section in Yangtze-to-Huaihe Water Diversion Project. The results show that: ① part of the Anhui section in Yangtze-to-Huaihe Water Diversion Project is still at the insecurity—less secure class with certain spatial differences in distribution of the ecological security indexes. And human activity is the main factor increasing ecological pressure in part of the section under research. ② The main factors that influence ecological security in the section of Yangtze-to-Huaihe Water Diversion Project in Auhui include annual emission of PM2.5, land stress index, ecological quality index, water network density index, vegetation coverage, total rainfall per year, topographic slope, and afforestation area. ③ cities with a larger population density and faster development are with higher ecological security indexes while the slow-growing cities are with lower ecological security indexes, which is closely related to the degree of implementation of ecological protection policies. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
