This paper aims to establish multi-dimensional expansion model of the green supply chain on forestry, which was rarely studied both here and abroad. To do so, the connotation and system structure of green supply chain on forestry is defined. Firstly, then, with the ideas of system integration, a cobweb model is established to explain its mechanism, which is composed of Length, Breadth, Correlativity and Thickness. Based on the model, an evaluation indicator system and method is designed. Finally, Jiangsu forestry in China is taken as an example to illustrate the application value of proposed model.
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