热带地理 ›› 2018, Vol. 38 ›› Issue (4): 487-497.doi: 10.13284/j.cnki.rddl.003060

• 论文 • 上一篇    下一篇

喀斯特和非喀斯特区农业景观格局变化及生态 系统服务价值变化对比——以广西全州县为例

史莎娜1,2a,李晓青1,谢炳庚1,胡宝清2a,汤传勇2b,闫 妍2a   

  1. [ 1.湖南师范大学 资源与环境科学学院 长沙 410081;2.a.北部湾环境演变与资源利用教育部重点实验室(广西师范学院); b.广西师范学院 地理科学与规划学院,南宁 530022 ]
  • 出版日期:2018-07-05 发布日期:2018-07-05
  • 通讯作者: 李晓青(1963―),女,湖南湘潭人,副教授,研究方向为资源利用与区域规划,(E-mail)lixiaoqing1919@foxmail.com。
  • 作者简介:史莎娜(1984―),女,湖南常德人,高级工程师,博士研究生,研究方向为景观生态与土地利用、资源利用与环境保护,(E-mail)279641704@qq.com。
  • 基金资助:
    国家重点研发计划项目(2016YFC0502406);广西自然科学基金(2015jjBA50056)

Change and Comparison of Agricultural Landscape Patterns and Ecological Service Values in Karst and Non-Karst Areas: A Case Study of Quanzhou County

SHI Shana1,2a,LI Xiaoqing1,XIE Binggeng1,HU Baoqing2a,TANG Chuanyong2b,YAN Yan2a   

  1. [ 1.College of Resources and Environment Science,Hunan Normal University,Changsha 410081,China;2.a.Key Laboratory of Environment Change and Resources Use in Beibu Gulf (Guangxi Teachers Education University),Ministry of Education; b.School of Geography and Planning,Guangxi Teachers Education University,Nanning 530001,China ]
  • Online:2018-07-05 Published:2018-07-05

摘要: 选取广西壮族自治区典型喀斯特丘陵盆地——全州县为研究区,根据景观格局和生态系统服务价值相关理论,采用2005、2010和2015年TM遥感影像的解译结果及社会经济统计数据,借助ArcGIS和Fragstats软件,对比分析了2005―2015年全州县喀斯特区和非喀斯特区的农业景观格局和生态系统服务价值变化,结果显示:1)2005―2015年间全州县农业景观格局发生明显变化,但喀斯特区和非喀斯特区优势景观类型均未发生变化。2)10年间农业景观用地面积喀斯特区减少了472.23 hm2,非喀斯特区减少了476.28 hm2,但喀斯特区的减少率高于非喀斯特区;喀斯特区比非喀斯特区景观更加破碎,斑块形状更加分散、复杂,景观异质程度更高。3)研究期内喀斯特区生态系统服务价值减少0.01亿元,非喀斯特区生态系统服务价值增加0.04亿元。其中,有林地的减少对2个区域生态系统服务价值减少的贡献率均为最大,喀斯特区达到78%,非喀斯特区达到83%,水域景观的增加导致2个区域生态系统服务价值增加。

关键词: 喀斯特, 农业景观格局, 生态系统服务价值, 广西全州

Abstract: The research area is Quanzhou county in the Guangxi Zhuang Autonomous Region is a typical Karst Hilly Basin. Based on the theory of landscape patterns and ecosystem service values, use the results of the interpretation of TM remote sensing images and socio-economic data in 2005, 2010 and 2015, and combined with GIS and Fragstats software to analyze and compare the changes of Agricultural landscape pattern and corresponding changes of ecological service value during 2005-2015.The analysis and comparison were carried out and the results showed that: 1) From 2005 to 2015, the spatial distribution of agricultural landscape in karst and non-karst areas of Quanzhou county changed to a certain extent, with obvious changes in the central and southern regions of karst areas and relatively scattered changes in non-karst areas. In agricultural landscape, the increase of water area in non-karst area is more than twice that of karst area, but the dominant landscape types of karst and non-karst areas have not changed. In both regions, the agricultural landscape has undergone significant changes, but the rate of change in karst area is greater, indicating that the change in karst area is stronger and more significant than that in non-karst areas. 2) In the past 10 years, the area of agricultural landscape in Karst was reduced by 472.23 hm2, and the non Karst area decreased by 476.28 hm2, but the reduction rate of Karst area was higher than that of non Karst region. Compared with the non Karst area, the landscape in Karst area is more fragmented, the patch shape is more dispersed and complex, and the landscape heterogeneity is even higher. On the one hand, the change of landscape pattern in karst and non-karst areas is due to the requirements of urban construction, industry and traffic layout. On the other hand is affected by the policy, making agricultural landscape internal change. 3) In the past 10 years, the total value of ecosystem services in prefectures and counties increased continuously, but the increase was small. In addition, the value of ecosystem services was reduced by RMB 1 million in karst areas. On the contrary, District ecosystem service value it increased by RMB 4 million in the non-karst areas. It can be seen that human activities have affected both karst and non-karst areas, but the influence of karst area is larger, leads to a decrease in karst area ecosystem service value. Among them, the largest contribution rate to the decrease of service value of the two regional ecosystems is the decrease of forested land, which reaches 78% in karst area and 83% in non-karst area. During the study period, although the value of ecosystem services provided by woodland decreased, the value of ecosystem services provided by water landscape increased. The increased value of ecosystem services in the two regions is due to the increase in water landscape. Since the forestry has a decisive role in the value of the ecosystem services of the two regions, it would be helpful to improve the ecosystem services of the study area, and improve the overall value of ecosystem services in the study area.

Key words: Karst Areas, agricultural landscape patterns, value of ecosystem services, Quanzhou County