Advances in Earth Science ›› 2009, Vol. 24 ›› Issue (12): 1301-1308. doi: 10.11867/j.issn.1001-8166.2009.12.1301

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Spatial Scales Integration of Land System Change:A Case Study Design on Guizhou Karst Plateau

Yunlong Cai   

  1. The Center for Land Study, School of Urban and Environmental Sciences, Peking University;Laboratory for Earth Surface Processes, Ministry of Education, Beijing100871, China
  • Received:2009-07-06 Revised:2009-09-07 Online:2009-12-10 Published:2009-12-17
  • Contact: Yunlong Cai E-mail:caiyl@urban.pku.edu.cn

Cai Yunlong. Spatial Scales Integration of Land System Change:A Case Study Design on Guizhou Karst Plateau[J]. Advances in Earth Science, 2009, 24(12): 1301-1308.

Scale is an important perspective for understanding and managing the world. Multi-scale relationship is a key frontier thesis in current scientific research. Scales relationship studies need to address the following issues: (i) Understanding of scaling can not be limited to scale conversion or scale coupling, it needs a comprehensive understanding for the complex relationship (connectivity) of a variety of different scales; (ii) It is necessary to correctly understand the goal of scales comprehension, and hereby to clarify what should be synthesized and how it be synthesized; (iii) The approach to integrate scales can not be mathematical model alone. This article takes the land system change in Guizhou Karst Plateau as a studied case, designing a research program for integrating the land changes at various scales, and struggling to contribute to address the above issues. Based upon results of accomplished researches such as the key project of National Natural Science Foudation of China, named Land Use/Cover Change and Its Impact to Sustainability of Land Use in the Karst Mountains of Southwest China, this case study struggles to integrate spatial scales of patterns, processes, drivers and impacts of land change at multi-scales of Guizhou Province, Wujiang River Basin, Miaotiao River Basin and several small catchments. Aiming at the actual need of multi-scales governence in sustainable land management, starting at the identification of complexity and connectivity between various scales, the concept and meanings of scales integration in land change science will be newly established, the methodology of scales integration will be devepoled by means of quantitative methods combined with qualitative methods. The research includes: (i) To develop methods of multi-scales representation and data connection of land changes, their drivers and impacts, aimed at scales integration; (ii) To detect and demonstrate the connectivity of land changes and their drivers and impacts between various scales; (iii) To integrate land changes, their drivers and impacts at various spatial scales; (iv) To provide a study case of spatial scales integration of land changes, their drivers and impacts on Karst Region in Southwest China; and (v) To search accordances and standards of multi-scales governence in sustainable land management at scales of provence, bigger river basin, middle river basin and small catchment.

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