| 基于生态足迹的常德市土地生态安全研究 |
| |
| 引用本文： | 苏臣,吴立潮,彭保发,吴双双.基于生态足迹的常德市土地生态安全研究[J].湖南文理学院学报(自然科学版),2008,20(3). |
| |
| 作者姓名： | 苏臣 吴立潮 彭保发 吴双双 |
| |
| 作者单位： | [1]中南林业科技大学资源与环境科学学院,湖南长沙410004 [2]湖南文理学院资源环境与旅游学院,湖南常德415000 |
| |
| 基金项目： | 湖南省社会科学基金，湖南省社会科学联课题，湖南文理学院校科研和教改项目 |
| |
| 摘 要： | 运用生态足迹模型分析了常德市2002~2006年的生态足迹的动态变化,初步探讨了常德市土地生态系统安全情况.结果显示:常德市人均生态足迹从2002年的1.917 94 hm2增加到2006年的2.509 93 hm2,而同期的人均生态承载力则由0.527 85 hm2下降到0.516 23 hm2,人均生态赤字由1.390 09 hm2增大为1.993 70 hm2,生态压力指数由3.26上升为4.22;万元GDP生态足迹从2.588 59 hm2逐渐下降为2.107 49 hm2.研究表明:虽然常德市对资源的利用效率在不断提高,但常德市的发展模式是不可持续的,土地生态系统始终处于超负荷状态,土地生态系统处于危险状态.
|
| 关 键 词： | 土地生态安全 生态足迹 生态承载力 生态压力指数 常德市 |
Research of land ecological safety based on ecological footprint in Changde City |
| |
| SU Chen,WU Li-chao,PENG Bao-fa,WU Shuang-shuang.Research of land ecological safety based on ecological footprint in Changde City[J].Journal of Hunan University of Arts and Science:Natural Science Edition,2008,20(3). |
| |
| Authors: | SU Chen WU Li-chao PENG Bao-fa WU Shuang-shuang |
| |
| Institution: | SU Chen1,2,WU Li-chao1,PENG Bao-fa1,WU Shuang-shuang 1,2 (1.Central South University of Forestry , Technology,Changsha Hunan,410004,2.Hunan University of Arts , Science,Changde Hunan,415000) |
| |
| Abstract: | Based on analyzing the dynamic change of ecologic- al footprint in Changde City from 2002 to 2006 by the ecology- ical footprint model, the land ecological security of Changde City was studied. The results showed that the ecological footprint per capita in Changde City increased from 1.917 94 hm2 in 2002 to 2.509 93 hm2 in 2006, whereas, the ecological capacity per capita decreased from 0.52785 hm2 to 0.51623 hm2; the ecological deficit per capita increased from 1.390 09 hm2 to 1.99 370 hm2; the ecological ... |
| |
| Keywords: | land ecological security ecological footprint ecological capacity ecological tension index Changde City |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
