Abstract:

Timber forest is not only an important source of timber supply in China,but also provide multi-functional benefits.Research on quality evaluation is important for forest management.In order to evaluate the quality of timber forest in Jiangle state-owned forest farm,a comprehensive evaluation index system including forest productivity,forest structure and site conditions was established based on the survey data of forest resources in 2012.The weight of each index was determined by combining Analytic Hierarchy Process and entropy weight method.The matter-element analysis for incompatibility problem was used for comprehensive evaluation.The results showed that:(1) The matter-element analysis method could accurately evaluate the quality of forest resources,and the quality of timber forests in Jiangle state-owned forest farm was “II” and there was a trend of transition to “III”,which is basically consistent with the results of previous studies;(2) The forests with canopy density in 0.40~0.69(C5),average tree height(C2) and mixed forest area ratio(C6) are of general quality and require special attention.

Key words: timber forest, subcompartment data, quality evaluation, combination right, matter-element analysis