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Stainability of Cultivated Land in Henan Province Based on Ecological Footprint AgEcon
Li, Ying-chao.
This paper summarizes the regional situation of Henan Province of China, and introduces the principle of ecological footprint mode, as well as computing formulas of ecological footprint and ecological capacity. According to the related data of Henan Province from 1998 to 2007, this paper firstly calculates the per capita ecological footprint and per capita ecological capacity of Henan Province. Result indicates that cultivated land in Henan Province shows ecological surplus with sustainable land use. And ecological surplus has increased since the year 2003. Secondly, dynamic analysis of ecological footprint of arable land is carried out in Henan Province. Thirdly, this paper also studies on the per capita ecological demand and supply in 18 districts and...
Tipo: Thesis or Dissertation Palavras-chave: Ecological footprint; Cultivated land; Sustainable utilization; China; Community/Rural/Urban Development; Environmental Economics and Policy; Land Economics/Use; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.
Ano: 2009 URL: http://purl.umn.edu/53591
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Study on Population Forecast Model in Planning of Land Use AgEcon
Zhang, Yan-fen; Li, Ying-chao; Chen, Wei-qiang.
On the basis of describing characteristics and condition of application of natural growth model of population, weighted average growth model, regression forecast model and GM(1,1)forecast model, taking Gushi County in Henan Province as an example, according to the statistics of population in Gushi County Statistical Yearbook from 1991 to 2007, we establish four models to conduct fitting on population change respectively, and meanwhile, we predict population size from 2008 to 2009 and conduct preciseness test on the population size. The test results show that the preciseness of forecast results of natural growth model is not high, and the preciseness of forecast results of weighted average growth model is not scientific when the total size of population is...
Tipo: Journal Article Palavras-chave: Planning of land use; GM ( 1-1)gray forest model; Population forecast model; Regression forecast model; China; Agribusiness.
Ano: 2011 URL: http://purl.umn.edu/113485
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