自然资源学报 ›› 2017, Vol. 32 ›› Issue (10): 1731-1743.doi: 10.11849/zrzyxb.20160972

• 资源生态 • 上一篇    下一篇

经济发达地区影响土地生态质量的关键景观格局因子研究——以江苏省昆山市为例

肖姚1, 2, 朱凤武2, 3, 周生路1, 2, *, 沈春竹2, 3, 王静2, 3   

  1. 1. 南京大学地理与海洋科学学院,南京 210046;
    2. 国土资源部海岸带开发与保护重点实验室,南京 210008;
    3. 江苏省土地勘测规划院,南京 210024
  • 收稿日期:2016-09-12 修回日期:2016-12-22 出版日期:2017-10-20 发布日期:2017-10-20
  • 通讯作者: 周生路(1968- ),男,教授,博士生导师,研究方向为土地资源与环境。E-mail: zhousl@nju.edu.cn
  • 作者简介:肖姚(1993- ),女,江苏徐州人,硕士研究生,研究方向为土地资源管理。E-mail: 597184708@qq.com
  • 基金资助:
    国土资源部公益性行业科研专项(201511001-03)

Key Landscape Pattern Factors Affecting Land Ecological Quality in Developed Areas: A Case Study of Kunshan City in Jiangsu Province

XIAO Yao1, 2, ZHU Feng-wu2, 3, ZHOU Sheng-lu1, 2, SHEN Chun-zhu2, 3, WANG Jing2, 3   

  1. 1. School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210046, China;
    2. Nanjing South Source of Land Development and Utilization Consulting Ltd., Nanjing 210008, China;
    3. Key Laboratory of Coastal Zone Exploitation and Protection, Ministry of Land and Resources, Nanjing 210024, China
  • Received:2016-09-12 Revised:2016-12-22 Online:2017-10-20 Published:2017-10-20
  • Supported by:
    Special Fund for Research in the Public Interest of Ministry of Land and Resources, No.201511001-03

摘要: 基于景观生态学的土地生态规划是提升土地生态质量、改善区域生态环境的重要途径,其中关键景观格局因子是土地生态规划的重要基础。论文选取长三角地区经济发达的昆山市作为研究区,以土地生态质量评价所得综合指数为基础,选取14个景观格局指数,通过关联分析测度方法确定两者的相关系数,分别在镇域和不同用地结构的典型代表村探讨影响土地生态质量的关键景观格局因子。结果表明:1)镇域尺度上,土地生态质量与最大斑块指数(LPI)、面积加权平均斑块面积(AWMPS)呈显著负相关,与香农多样性(SHDI)、平均形状指数(MSI)呈显著正相关;2)不同用地结构类型区影响土地生态质量的关键景观格局因子差异较大,其中建设用地集中区与斑块密度(PD)、边界密度(ED)呈显著正相关,与聚集度指数(AI)、蔓延度指数(CONTAG)呈显著负相关,生态用地集中区与斑块面积(TA)和面积加权平均斑块面积(AWMPS)呈显著正相关,农用地集中区与最大斑块指数(LPI)显著负相关,与分离度指数(SPLIT)和多样性指数(SHDI)呈显著正相关;3)对研究区土地生态规划景观设计时,首先要宏观把握景观的优势类型,注重各景观类型的均衡分布,增加景观复杂度,其次关注不同用地结构类型区的关键景观格局因子,其中建设用地集中区应适当维持景观的破碎度和离散性,生态用地集中区应最大限度保证生态用地面积和优势类型,农用地集中区应当维持其景观类型的多样性以及分布的均衡性。

关键词: 关键景观格局因子, 昆山市, 土地生态质量

Abstract: Land ecological planning based on landscape ecology is an important way to improve land ecological quality and regional ecological environment. Key landscape pattern factors are the important bases of landscape planning and design. The paper selected a developed city in Yangtze River delta region—Kunshan city as the study area. Based on the comprehensive index for land ecological quality evaluation, the paper chose 14 landscape pattern indices and calculated the correlation coefficient between the comprehensive index of land ecological quality and the landscape pattern indices with correlation analysis to identify the key landscape factors which affect land ecological quality mostly. The results showed that: 1) At town scale, land ecological quality has significant negative correlation with the largest plaque index (LPI) and the area weighted average patch area (AWMPS), and it has significant positive correlation with Shannon diversity (SHDI) and average shape index (MSI). 2) Key landscape pattern factors affecting land ecological quality are different in areas with different land use structures. In construction land zone, land ecological quality has significant positive correlation with the patch density index (PD) and boundary density (ED) and has significant negative correlation with the aggregation index (AI) and contagion index (CONTAG). In ecological land zone, land ecological quality has significant positive correlation with land patch area (TA) and the area weighted average patch area (AWMPS). In farmland zone, land ecological quality has significant negative correlation with the largest plaque index (LPI) and negative correlation with separation index (SPLIT) and diversity index (SHDI). 3) When we make land ecological planning and landscape design in the research area, the dominant types of landscape, the richness and balanced distribution of landscape types and the landscape complexity should be considered firstly. Secondly, we should focus on key landscape pattern factors in areas of different land use structures. The fragmentation and discreteness of landscape should be maintained in construction land zone. In ecological land zone, the maximum area and the advantage types should be maintained. In farmland zone, the diversity and spatial equilibrium of the landscape types should be ensured.

Key words: key factors of landscape pattern, Kunshan city, land ecological quality

中图分类号: 

  • F301.24