防治荒漠化的“三圈”生态-生产范式机理及其功能
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Q143

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The mechanism and function of “3-Circles”an eco-productive paradigm for desertification combating in China
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    摘要:

    防治荒漠化的“三圈”生态-生产范式,是干旱生态系统优化与重建的新结构。根据在鄂尔多斯和新疆等地的研究和实践,从干旱生态系统结构、过程和功能来讨论荒漠化防治的“三圈”范式。地理圈层结构(地理地带性)是“三圈”范式的自然地理背景。从宏观尺度和功能方面划分,“三圈”范式在空间尺度上有大“三圈”和小“三圈”之分,大“三圈”控制洲际范围的荒漠化扩展及沙尘暴蔓延,小“三圈”则以控制区域性风沙活动、沙尘暴和就地起沙的危害。防治荒漠化工程是复杂的多元组合和多功能的系统,我国西北地区受荒漠化影响严重,宏观的大“三圈”与多区域的小“三圈”有机结合,形成圈圈相护、层层设防的严密防护与生产系统,有效地控制大范围风沙危害、改善地方气候与小气候,并对发展经济,提高人民生活发挥重要作用。因此,“三圈”范式的概念与结构既是以自然地理地带性为基础,又是人类对自然、环境与生态系统格局的规律认识,更是科学的人类恢复、重建干旱区生态环境与可持续发展的生态设计范式。

    Abstract:

    The “3-Circles” eco-productive paradigm for combating desertification is an optimized and reconstructed new structure for arid ecosystems. The structure, process/dynamic and function of the system are comprehensively based on a brand-new viewpoint of systematology. This paper studies the control, creation and feedback of the “3-Circles” paradigm for combating desertification using Chaos theory. We discusses the causes of desertification and the process of chaos. The geographical sphere structure (geographical zonality) is the natural background of the “3-Circles” ecological paradigm; the driving force of the “3-Circles” paradigm is the process of chaos. In the modern material world, the ecosystem and environment are all dominated by Chaos theory. The chaos movement exists in the complex degradation and rehabilitation processes of arid ecosystems, i.e. the “order comes from the chaos”. The structure of the eco-productive paradigm is divided; the big “3-Circles” mainly controls expansion of desertification and extension of large scale sandstorms; the small “3-Circles” mainly controls regional desertification and the damage produced by sandstorms while the small “3-Circles” are formed in accordance with the concrete patterns of the natural geography and social economic conditions of different types of landscape, including the oases. Chaos theory provides us with the "organic, antibacklash and flowing world": a new holistic concept, combating desertification requires complicated multi-functional systems. In China′s northern arid areas and the areas affected by desertification, the big “3-Circles” and the small “3-Circles” are the organically combined network which forms a strict protection system with mutual protective functions from circle to circle and defense from belt to belt. So that large scale effects of wind-drift sand movement are effectively controlled, the local climate and microclimate are improved and the quality of people′s lives is promoted so as to build up Northwest China. Consequently, the concept and structure of the “3-Circles” system is based on natural geographical zonality and provides a rationally designed ecological solution for the interaction between the human and natural environments and the patterns of ecosystems. It represents science towards the "realm of freedom", in which the paradigm for restoration of the environment in arid regions and for sustainable development is defined humans.

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慈龙骏,杨晓晖,张新时.防治荒漠化的“三圈”生态-生产范式机理及其功能.生态学报,2007,27(4):1450~1460

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