The Evolution of Landscape Pattern and the Construction of Ecological Infrastructure Network in Dengkou, Inner Mongolia, China

doi:10.7522/j.issn.1000-694X.2015.00254

JOURNAL OF DESERT RESEARCH ›› 2017, Vol. 37 ›› Issue (3): 601-609.DOI: 10.7522/j.issn.1000-694X.2015.00254

The Evolution of Landscape Pattern and the Construction of Ecological Infrastructure Network in Dengkou, Inner Mongolia, China

Yu Qiang¹, Yue Depeng¹, Zhang Qibin¹, Lv Qi¹, Li Ning¹, Hou Hongbing²

1. Beijing Forestry University, Beijing 100083, China;
2. Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China

Received:2015-09-10 Revised:2015-11-04 Online:2017-05-20 Published:2017-05-20

Abstract

Abstract: Urban ecological infrastructure is the foundation of urban sustainable development. The ecology of arid area in West China is very fragile. The ecological infrastructure network of county scale is significant to ensure the stable development in the arid area. Under the background of rapid urbanization, Dengkou County, the typical ecological fragile zone in West China, was chosen as the study area. Landscape pattern index, landscape transfer network and kernel density mapping were used to analyze the landscape pattern evolution of the county. Then the ecological resources were identified and classified, and ecological corridors and ecological nodes were identified based on the Cost Path model. In addition, the urban ecological infrastructure network in the county scale was developed. The results show that the landscape of the county in 2014 was immensely damaged, and the ecological flow of landscape was poor. The transfer between urban/construction land, desert shrub land, farmland and desert determines the characteristics of the whole landscape changes in Dengkou County. There were totally 28 kinds of transfer relations during the 14 years. The optimization network of ecological infrastructure in county scale based on the Cost Path model is consisted of 391 ecological resources, 47 466 ecological corridors and 799 ecological nodes. The ecological infrastructure optimization network constructed for Dengkou County at the arid area is an important guarantee for the development and urbanization of the county, and is of significance for the ecological planning in arid area.

Key words: ecological infrastructure network, urbanization, landscape pattern evolution, Cost Path model, Dengkou County

CLC Number:

K909

Yu Qiang, Yue Depeng, Zhang Qibin, Lv Qi, Li Ning, Hou Hongbing. The Evolution of Landscape Pattern and the Construction of Ecological Infrastructure Network in Dengkou, Inner Mongolia, China[J]. JOURNAL OF DESERT RESEARCH, 2017, 37(3): 601-609.

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The Evolution of Landscape Pattern and the Construction of Ecological Infrastructure Network in Dengkou, Inner Mongolia, China

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