贵港市土地生态安全评价与时空动态研究
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摘要
以贵港市为例,从自然环境、经济、社会3个方面选取影响土地生态安全的18个指标,构建了土地生态安全评价指标体系,对贵港市及其各县区进行了土地生态安全状况定量评估。得出结论:2009～2016年贵港市土地生态安全指数上升,土地生态安全压力得到缓解;前期影响贵港市土地生态安全的是土地经济环境子系统,后期土地自然环境子系统障碍度增大,成为主要限制因素;贵港市各县区土地生态安全动态走向与贵港市一致,但发展状况差异明显,差距逐渐增大;2009和2016年土地生态安全状况最好的分别是港南区和覃塘区,最差均为港北区。最后,基于贵港市土地生态安全发展特点提出了相关对策建议。
This paper took Guigang city as a study area, selected 18 indexes affecting the land ecological security from the aspects of natural environment, economy and society, built the comprehensive evaluation index system of land ecological security, and made comprehensive quantitative evaluations of land ecological security in whole Guigang city and its all counties(districts). The results showed that: from 2009 to 2016, the land ecological security index of Guigang city kept rising, and the land ecological security pressure was relieved. The land ecological security threat in Guigang city at the earlier stage came from land economic environmental subsystem, but that at the later stage mainly came from land natural environmental subsystem. The land ecological security dynamics in various counties(districts) of Guigang city were consistent with those in whole Guigang city, but the gaps between them were obvious and increasing gradually. In the year 2009 and 2016, the status of land ecological security in Gangnan district and Qintang district was the best, respectively, while that in Gangbei district all was the worst. Finally, based on the characteristics of land ecological security situation in Guigang city, some related countermeasures and suggestions were put forward.
This paper took Guigang city as a study area, selected 18 indexes affecting the land ecological security from the aspects of natural environment, economy and society, built the comprehensive evaluation index system of land ecological security, and made comprehensive quantitative evaluations of land ecological security in whole Guigang city and its all counties(districts). The results showed that: from 2009 to 2016, the land ecological security index of Guigang city kept rising, and the land ecological security pressure was relieved. The land ecological security threat in Guigang city at the earlier stage came from land economic environmental subsystem, but that at the later stage mainly came from land natural environmental subsystem. The land ecological security dynamics in various counties(districts) of Guigang city were consistent with those in whole Guigang city, but the gaps between them were obvious and increasing gradually. In the year 2009 and 2016, the status of land ecological security in Gangnan district and Qintang district was the best, respectively, while that in Gangbei district all was the worst. Finally, based on the characteristics of land ecological security situation in Guigang city, some related countermeasures and suggestions were put forward.
引文
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[13] 王富喜,毛爱华,李赫龙,等.基于熵值法的山东省城镇化质量测度及空间差异分析[J].地理科学,2013,33(11):1323-1329.
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[15] 赵宏波,马延吉.东北粮食主产区耕地生态安全的时空格局及障碍因子:以吉林省为例[J].应用生态学报,2014,25(2):515-524.
[2] Vázquez-González C, Fermán-Almada J L, Moreno-Casasola P, et al. Scenarios of vulnerability in coastal municipalities of tropical Mexico: An analysis of wetland land use [J]. Ocean & Coastal Management, 2014, 89(2): 11-19.
[3] 解雪峰,吴涛,肖翠,等.基于PSR模型的东阳江流域生态安全评价[J].资源科学,2014,36(8):1702-1711.
[4] 李玉照,刘永,颜小品.基于DPSIR模型的流域生态安全评价指标体系研究[J].北京大学学报:自然科学版,2010,48(6):971-981.
[5] 张家其,吴宜进,葛咏,等.基于灰色关联模型的贫困地区生态安全综合评价:以恩施贫困地区为例[J].地理研究,2014,33(8):1457-1466.
[6] 朱晓伟,平宗莉,陈翠华.基于文献计量的中国土地生态安全评价研究进展[J].资源开发与市场,2016,32(11):1297-1301,1318.
[7] 黄宝强,刘青,胡振鹏,等.生态安全评价研究述评[J].长江流域资源与环境,2012,21(S2):150-156.
[8] 刘黎明.土地资源学[M].第五版.北京:中国农业大学出版社,2010:223-225.
[10] 孙丕苓,杨海娟,刘庆果.南水北调重要水源地的土地生态安全动态研究:以陕西省商洛市为例[J].自然资源学报,2012,27(9):1520-1530.
[11] 唐丽琼,杨思林,宋维峰,等.元阳县土地生态安全动态评价与预测[J].江苏农业科学,2015,43(5):357-361.
[12] 李洁,赵锐锋,梁丹,等.兰州市城市土地生态安全评价与时空动态研究[J].地域研究与开发,2018,37(2):151-157.
[13] 王富喜,毛爱华,李赫龙,等.基于熵值法的山东省城镇化质量测度及空间差异分析[J].地理科学,2013,33(11):1323-1329.
[14] 周惠成,张改红,王国利.基于熵权的水库防洪调度多目标决策方法及应用[J].水利学报,2007,38(1):100-106.
[15] 赵宏波,马延吉.东北粮食主产区耕地生态安全的时空格局及障碍因子:以吉林省为例[J].应用生态学报,2014,25(2):515-524.
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