JOURNAL OF NATURAL RESOURCES ›› 2017, Vol. 32 ›› Issue (7): 1170-1182.doi: 10.11849/zrzyxb.20160677

• Resource Evaluation • Previous Articles     Next Articles

Relations between Land Use Carbon Budget and Economic Development at County Level in Chengdu City

WANG Gang1, 2, ZHANG Hua-bing1, 2, XUE Fei1, 2, ZHEN Yan2   

  1. 1. a. College of Urban and Plan, b. College of Ocean and Biological Engineering, Yancheng Teachers University, Yancheng 224002, China;
    2. The Third Survey in Gandmapping Engineering Institute of Sichuan Province, Chengdu 610500, China;
  • Received:2016-06-27 Revised:2016-11-02 Online:2017-08-02 Published:2017-08-02
  • Supported by:
    Open Fund of Geographic National Condition Monitoring Engineering Research Center of Sichuan Province, No. GC201518Philosophy and Social Science Research Project in Colleges and Universities in Jiangsu Province, No. 2016SJB790050Natural Science Project of Yancheng Teachers University, No. 16YCKLY001 and 08YCKL080.

Abstract: Based on the land use map interoperated from remote sensing image and energy consumption data of 2014 at county level in Chengdu city, spatial distribution characteristic of the carbon budget was analyzed. Furthermore, coordinative relations among carbon budget, land use and economic development were studied by establishing regression model. The result shows: 1) The area proportion of carbon sink was 56.97%, higher than that of carbon source. There were remarkable spatial differences of carbon sources and carbon sinks in Chengdu city. Land use intensity county was between 2.40-3.33 at county level, and its spatial distribution presents characteristic of “high in the east and low in the west, while the highest in the middle”. 2) Net carbon emission was 2.43×107 t, with the characteristic of “high in the east and low in the west, while the highest in the middle”. Carbon compensation ratio and ecological support coefficient of each county were between 0.06%-11.58% and 0.05-8.60, respectively, and both presented the characteristic of “low in the east and hig in the west, while the lowest in the middle”. 3) Economy contribution coefficient was between 0.26-1.45, and it demonstrated a trend from high in the center to low in the peripheral area. 4) Net carbon emission was significantly positively correlated with GDP (P<0.01). ESC was significantly negatively correlated with land use intensity (P<0.01). The coupling coordination degree of economy contribution coefficient and land use intensity at each level was 0.56. According to the established regression model, we found that economic development and coupling coordination degree have significant correlation (P<0.01).

Key words: carbon budget, Chengdu city, county level, coupling coordination degree, land use

CLC Number: 

  • X502