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林业科学 ›› 2018, Vol. 54 ›› Issue (7): 118-129.doi: 10.11707/j.1001-7488.20180713

• 论文与研究报告 • 上一篇    下一篇

基于空间网络的湖南“森林生态·经济·社会”复合系统空间格局演变分析

王金龙1,2, 杨伶1,2, 张贵2, 尹少华1   

  1. 1. 中南林业科技大学农林经济管理研究中心 长沙 410004;
    2. 数字洞庭湖南省重点实验室 长沙 410004
  • 收稿日期:2017-08-03 修回日期:2017-11-23 出版日期:2018-07-25 发布日期:2018-08-11
  • 基金资助:
    湖南省自然科学基金青年项目(2018JJ3890);湖南省哲学社会科学基金青年项目(17YBQ115);湖南省社会科学成果评审委员会课题(XSP18YBC310);湖南省教育厅优秀青年项目(17B290);湖南省教育科学"十三五"规划青年专项课题(XJK17QGD019);中南林业科技大学青年基金项目(2017QY003);中南林业科技大学引进人才项目(2017YJ018,2016YJ028)。

Spatial Pattern Evolution of Forest Ecology-Economy-Society Compound System in Hunan Based on Spatial Network

Wang Jinlong1,2, Yang Ling1,2, Zhang Gui2, Yin Shaohua1   

  1. 1. Research Center for Economics and Management of Agriculture and Forestry, Central South University of Forestry and Technology Changsha 410004;
    2. Key Laboratory for Digital Dongting Lake Basin of Hunan Province Changsha 410004
  • Received:2017-08-03 Revised:2017-11-23 Online:2018-07-25 Published:2018-08-11

摘要: [目的]探究基于空间网络的湖南"森林生态·经济·社会"复合系统空间格局演变规律,以促进湖南生态-经济-社会的协调可持续发展。[方法]在"森林生态·经济·社会"复合系统演变发展评价的基础上,采用排列组合理论对湖南复合系统演变发展进行评价,并按照各子系统的等级差异进一步分类。运用空间网络相关理论,构建"以研究单元为节点、以研究单元复合系统之间的相互关系为边权"的复合系统空间网络,引入空间依赖度对边权进行赋值,描述节点在局部空间格局中的地位,并结合节点度进一步界定关键节点和需调控的研究单元,从而提出复合系统空间格局优化的有效调控方式。[结果]湖南复合系统以生态优势型和生态较好型为主导,呈现向多元化和高度均衡发展的演变趋势。从拓扑结构来看,单一化和低度均衡型节点在空间网络的影响和作用较大;而多元化和高度均衡型节点的影响和作用较小。结合空间效应强度来看,单一化和低度均衡型节点在局部空间格局中的地位相对较低,改善空间较大;而多元化和高度均衡型节点的地位相对重要,具有辐射和示范作用。[结论]单一化和低度均衡型节点对整体空间格局的影响较大,但实际调控难度较大;而多元化和高度均衡型节点在局部空间格局中具有重要的辐射和示范作用,但该部分研究单元对整体空间格局的影响相对较小,这也是湖南"森林生态·经济·社会"复合系统空间格局进一步优化面临的现实问题。进一步研究2015年湖南复合系统空间网络的节点度-空间效应强度发现,在优化空间格局主体思路的指导下,有效调控方式可确保关键节点在复合系统空间格局中的地位,并应对复合系统演变发展中存在改善空间(空间效应强度低于0.5)且对整体空间格局影响较大(节点度在5以上)的研究单元予以重点关注。

关键词: 空间网络, “森林生态·经济·社会”复合系统, 空间格局, 湖南

Abstract: [Objective] The evolution law of spatial pattern of the forest ecological-economic-social compound system based on spatial network was explored to promote the coordination and sustainable development of ecology, economy and society in Hunan.[Method] The paper adopted the theory of permutation and combination to evaluate the evolution of compound system based on the forest ecology-economy-society evaluation system, and classified according to the grade difference of each subsystem further. On this basis, we used spatial network theory to structure the spatial network that was composed of research units as nodes and the relationships between research units as edges. Then we assigned the edge weight by introducing spatial dependency to describe the position of nodes in local spatial patterns, and used the degree to define the key nodes and the research units that required adjustment. At last, the effective control method for optimizing the spatial pattern of compound system was proposed.[Result] The compound system was dominated by the ecologically dominant type and the relatively ecologically dominant type in Hunan, and showed a trend of diversification and high-level equilibrium development. According to the topological structure, the nodes of simplification and low-level equilibrium had greater influence and function in the spatial network, while the nodes of diversification and high-level equilibrium had less impact. Considering the spatial effect strength, the nodes of simplification and low-level equilibrium had relatively low status in the local spatial pattern and existed improvement space, while the nodes of diversification and high-level equilibrium played a more important role in the local spatial pattern, which had the function of radiation and demonstration.[Conclusion] The nodes of simplification and low-level equilibrium had great influence on the overall spatial pattern, but there was difficulty in the actual regulation. While the nodes of diversification and high-level equilibrium played an important role in the local spatial pattern, but the impact on the overall spatial pattern was relatively small, this was also the realistic problem of the spatial pattern optimization of the forest ecological-economic-social complex system in Hunan. Further studies on spatial networks of the degree and the spatial effect strength in 2015 indicated that under the guidance of the main idea of optimizing the spatial structure, the effective control method was to ensure the key nodes' position and focus on the research unit of existence improvement space in the evolution of compound system(space effect intensity is less than 0.5) and the influence on the overall spatial pattern was larger(node degree value is above 5).

Key words: spatial network, forest ecology-economy-society compound system, spatial pattern, Hunan

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