LIU Chao, XU Yueqing, SUN Piling, et al. Evaluation of Ecological Sustainability Based on Revised Three-dimensional Model of Ecological Footprint in Zhangjiakou City[J]. Bulletin of Soiland Water Conservation, 2016, 36(6): 169-176.
DOI:
LIU Chao, XU Yueqing, SUN Piling, et al. Evaluation of Ecological Sustainability Based on Revised Three-dimensional Model of Ecological Footprint in Zhangjiakou City[J]. Bulletin of Soiland Water Conservation, 2016, 36(6): 169-176. DOI: 10.13961/j.cnki.stbctb.2016.06.029.
Evaluation of Ecological Sustainability Based on Revised Three-dimensional Model of Ecological Footprint in Zhangjiakou City
the purpose of this study was to analyze quantitatively the ecological sustainable development of Zhangjiakou City in 2003-2013
and to predict the trend for decision basis of ecological system structure optimization and ecological construction and management.[Methods] Revised three-dimensional model of ecological footprint was adopted to calculate its dynamic changes of consumption and supply of all land types from 2003 to 2013. And GM(1
1) gray predictive dynamic model was constructed to predict the trend of ecological sustainable development in the next seven years.[Results] From 2003 to 2013
biocapacity per capita in Zhangjiakou City decreased from 1.460 7 hm2 to 1.321 0 hm2; ecological footprint per capita increased from 2.271 6 hm2 to 5.490 0 hm2; ecological deficit per capita increased from 1.845 9 hm2 to 4.671 9 hm2; ecological footprint depth per capita increased from 5.336 2 hm2 to 7.254 4 hm2
and ecological footprint size per capita increased from 0.425 7 hm2 to 0.747 0 hm2.Meanwhile
ecological footprint per capita of fossil fuel land
construction land
water area
arable land
grassland and forest land showed a trend of increase. Expect for grassland and forest land
ecological carrying capacity per capita of other ecological productive lands were decreasing. Construction land
arable land and forest land presented a state of ecological surplus
and their ecological footprint depth per capita were in natural growth stage. However
fossil fuel land
water area and grassland were in the condition of ecological deficit
ecological footprint depth per capita of water area and grassland present an increasing trend. In the period of 2014-2020
ecological footprint per capita were predicted in a rise trend; whereas
ecological carrying capacity per capita would decline year after year.[Conclusion] Therefore
in order to realize the sustainable development of local economy
society and ecological environment
some major counter measures of reducing ecological deficit and alleviating the pressure of ecological environment should be adopt positively