Evaluation method of regional forest landscape carrying capacity—A case study of Wuyuan County,Jiangxi Province
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Abstract
Based on the connotation and characteristics of forest landscape resource carrying capacity,a carrying index(ratio of carrying quantity to carrying capacity) method was postulated to evaluate the carrying capacity of forest landscape resources.An evaluation index system involving 15 indices of economy,ecology and recreation, was set up by means of theoretical analysis and expert best-judgment method,to establish a carrying index calculation model for forest landscape resources.The carrying capacity of forest landscape resources of Wuyuan County,Jiangxi Province was evaluated based on the above established method.Index weight was determined by analytic hierarchy rocess,and the calculation method of the indices was explicited.The overall carrying index of the forest landscape resources as calculated by the evaluation method is 0.3559,indicating that the forest landscape resources are in a state of weak loading.Ecological and recreational carrying indexes are 0.2308 and 0.2448 respectively,revealing a weaker state of loading. However, economic carrying capacity is about saturated,as reflected in the carrying index value of 0.9710.The results indicate that decreasing economic demand on forest landscape resources is a key factor to improve the overall forest landscape resources carrying capacity.A main approach achieving this goal is by decreasing energy consumption and enhancing fruit forest cultivation.
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