地理研究

地理研究 ›› 2001, Vol. 20 ›› Issue (6): 645-652.doi: 10.11821/yj2001060001

• 论文 •    下一篇

土地利用/土地覆被变化研究:寻求新的综合途径

蔡运龙   

  1. 北京大学城市与环境学系, 土地科学中心, 地表过程分析与模拟教育部重点实验室, 北京 100871
  • 收稿日期:2001-08-19 修回日期:2001-10-29 出版日期:2001-12-15 发布日期:2001-12-15
  • 作者简介:蔡运龙(1948-),男,贵州贵阳人,博士,教授,博士生导师。从事综合自然地理学、区域综合开 发、土地科学、自然资源评价与利用规划、地理学理论与方法等方面的研究。E-mail:caiyl@ur- ban.pku.edu.cn
  • 基金资助:

    国家自然科学基金重点项目(49831020);国家自然科学基金面上项目(49871037)

A study on land use/cover change: the need for a new integrated approach

CAI Yun-long   

  1. Department of Urban and Environmental Sciences &|the Center for Land Studies, Peking University|Laboratory for Earth Surface Processes, The Ministry of Education, Beijing 100871, China
  • Received:2001-08-19 Revised:2001-10-29 Online:2001-12-15 Published:2001-12-15

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被引次数

1087 | 201

摘要：

土地利用/土地覆被变化是很复杂的现象,参与该项目的研究人员要避免“瞎子摸大象”那样的片面性,必须寻求新的综合研究途径。为此,不能简单地沿袭传统土地利用研究的思路和方法,需要不断提出新的研究论题;对土地利用变化驱动力必须有一种普遍的、综合的认识;需要将多个案例研究联结为一个可代表区域空间异质性的网络,需要作多空间尺度的研究,从而将地方尺度和区域尺度的土地覆被动态联系起来;需要发展新的研究方法,并将从农户调查到遥感数据的各种信息综合起来;尤其需要形成关于土地利用/土地覆被变化的综合科学理论框架

关键词: 土地利用/土地覆被, 变化的复杂性, 驱动力的多样性, 尺度耦合, 理论综合

Abstract:

Land cover changes are not simple processes. There are complex simultaneous patterns of land-cover change, ranging from modifications in land cover to conversions and maintenance. There is a functional complexity within types of land-cover change, and a structural complexity between types of land-cover change, both in terms of spatial arrangements and temporal patterns of change. Land-cover change needs to be measured in its complexity to fully understand it. It is important to differentiate between land cover and land use when measuring patterns of changes. Land-use/land-cover change is a kind of extremely complex phenomenon. For all researchers involving in the study to avoid the unilateralism like blind-person touching elephant, they should search a new synthesis of studies. Therefore, the traditional approach of land use study is not effective and new topics are needed to be further found. A generalized and comprehensive understanding is required for the drivers of land-use change. We need a network of case studies that represents the spatial heterogeneity of the region and a multi-level approach that allows for a linkage between regional and local scale land-cover dynamics. Case study comparison is a major tool to derive generalizations of land-use/land-cover change research. We should develop new methods in mathematical modeling, descriptive models, empirical study, systematic case study and mechanism study. Linking house-hold-level information to remote sensing data is becoming a major tool to increase our understanding of land-use dynamics. The drivers of LUCC are always present but interact differently according to the temporal and spatial dynamics of the situation. A thorough understanding and modeling of these complex interactions is a prerequisite to generate realistic projections of land-cover change. The more important hypotheses for LUCC are those that frame the integration and synthesis of the science.

Key words: complexity of land-cover changes, drivers of land-use changes, coupling of scales, new integrated approach

PACS: 

  • F301.24