| 基于P-S-R模型的湖南省土地资源生态安全动态评价 |
| |
| 引用本文： | 王鹏,况福民,邓育武,田亚平,谢卫妮.基于P-S-R模型的湖南省土地资源生态安全动态评价[J].安徽农业科学,2013,41(4):1799-1801,1860. |
| |
| 作者姓名： | 王鹏 况福民 邓育武 田亚平 谢卫妮 |
| |
| 作者单位： | 1. 衡阳师范学院,资源环境与旅游管理系,湖南衡阳421002
2. 衡阳师范学院,资源环境与旅游管理系,湖南衡阳421002;湖南科技大学,建筑与城乡规划学院,湖南湘潭411201 |
| |
| 基金项目： | 国家自然科学基金项目"南方红壤丘陵区土地生态安全研究——以湘南红壤丘陵区为例"，湖南省科技"资源环境与区域可持续发展"创新团队项目，湖南省人文地理学重点建设学科资助项目 |
| |
| 摘 要： | 根据湖南省区域环境及土地利用特点,运用P-S-R模型建立湖南省土地资源生态安全评价的指标体系,采用熵权法法计算各指标权重和研究区域的土地资源生态安全值,对其2001～2010年的土地资源生态安全状态进行动态综合评价,划定安全等级。结果表明,湖南省土地资源生态安全压力指数呈减小趋势;2001～2010年湖南省土地资源生态安全状态指数总体为增加趋势,但是在2006～2008年出现小幅度下降;湖南省土地资源生态安全响应指数呈上升趋势;综合安全指数变化表现为增加趋势,但是至2010年仍为临界安全。湖南省土地资源生态安全面临的压力仍较大,区域土地资源状态仍不乐观,在人类的干预和维持下,生态安全受人类的影响逐渐加大。
|
| 关 键 词： | 土地资源 生态安全 指标体系 动态评价 湖南省 |
Dynamic Evaluation of Ecological Security of Land Resources in Hunan Province Based on Pressure-state-response Model |
| |
| Institution: | WANG Peng et al ( Department of Resources, Environment and Tourism Management, Hengyang Normal University, Hengyang, Hunan 421002 ) |
| |
| Abstract: | According to regional environment and land use characteristics in Hunan Province, the index system for evaluating ecological secur- ity of land resources was developed based on pressure-state-response model. By means of entropy method to calculate the index weight and are- as of land resources ecology secure value, an dynamic comprehensive evaluation was conducted on land resources ecological safety status dur- ing 2001 -2010, delimit the safety level. The land resources ecological safety pressure index in Hunan Province showed a trend of decrease; land resources ecological security state index in Hunan Province during 2001 -2010 revealed a general trend of increase, but a small range de- crease during 2006 -2008; land resources ecological security response index rising; comprehensive security index change trend for the in- creasing trend, but to 2010 still for critical safety. The pressure of land resources ecological security is still bigger, regional land resource sta- tus is not optimistic. Effects of human intervention and maintain on ecological security increase gradually. |
| |
| Keywords: | Land resources Ecological security Index system Dynamic evaluation Hunan Province |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
