Abstract

Abstract. The land-use pattern is one of the key study areas of the utilization of land resource、landscape ecology and the sustainable development, which has important implications for other areas such as the ecological environment, land-use, and isolation. Based on the second national land survey data, the applicat ion of landscape ecology theory and mathematical statistics, selecting the diversity index, evenness index, dominance index, fragmentation such as separation, we have studied the quantit ative characteristics of the land-use structure in the suburbs. We have created a kind of distribution in the fractal structure model by using the fractal theory and have analyzed the complxity and stability of the types of land distribution, based on fractal dimension and stability indexes. The results showed that: the diversity and evenness index is smaller, the dominance index is larger, so that the land-use structure is uneven and the advantage land-use is cultivated land. The order of the separation is contrary to the fragmentation. The cultivated land is the most broken and the most concentrated land-use as well as the water area is the least broken and the most scatter land-use. Fractal dimension and stability index shows that the land-use distribution form is more irregular and less stable. The study conducted an analysis of the land-use structure of the urban in the underdeveloped cities, providing a reference for the ecological environmental protection, the rationalization of land-use.

Highlights

  • Research of land-use has a long history

  • We investigated the spatial distribution of typical landuse type based on landscape indices, fractal dimensions and stability index, which will help to analysis the rationality of land-use, and has important practical significance to guide the optimal allocation of regional land resource(Liu et al, 2009)

  • The fractal theory used in landuse structure can be concluded into the following types, such as fractal dimension computation of different kind landuse, methods used in landuse fractal research, fractal depiction of landuse variation and fraction models used in regional landscape pattern etc(Zhu and Cai, 2005)

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Summary

INTRODUCTION

Research of land-use has a long history. Previously, many scholars research broadly focuses on land resources survey, zoning, classification, planning, evaluation and management of research and development and other fields(Fan et al, 2004). The study of land-use/land-cover change and its impact on global change mostly focuses on the typical area(Yu and Yang, 2002): one is the "hot spots", namely, a region with extremely active human activites and natural driving force, such as Shenzhen City(Shi et al, 2000), Beijing City(Gu, 1999), and the Yangtze River Delta(Yang, 2001). The suburb of underdeveloped industrial regions often locates between the periphery continuous built-up area of the city center and purely agricultural hinterland in which there are almost no citizen and agricultural land-use. It combines the urban characteristic and ecologiccal landscape of rural areas, and its p opulation density is lower than the center, but higher than the surrounding rural areas(Gu et al, 1993). We investigated the spatial distribution of typical landuse type based on landscape indices, fractal dimensions and stability index, which will help to analysis the rationality of land-use, and has important practical significance to guide the optimal allocation of regional land resource(Liu et al, 2009)

OVERVIEW OF THE S TUDY AREA
METHODS
Fractal model
RES ULTS AND DIS CUS S ION
Findings
CONCLUS ION
Full Text
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