引入森林资源中介变量的林业产业与生态作用机理研究

Study on their interaction mechanisms between forestry industry and ecology with forest resources mediator introduced

经文献梳理后发现,在国内外林业产业与森林生态相互关系的研究中,存在撇开两者所处的森林资源环境而孤立地就两者关系论两者关系的缺陷。为此,引入森林资源环境中介变量,运用结构化的压力-状态-影响-响应(PSIR)和定量化的结构方程模型(SEM),确定了林业产业、森林资源环境与森林生态指标及其作用路径系数,据此定量测度了其相互作用程度,并揭示了其相互作用机理。首先,基于三者理论关系分别提出了林业产业通过森林资源环境对森林生态作用的研究假设模型SM_P和森林生态通过森林资源环境对林业产业作用的研究假设模型SM_C,并构建PSIR系统结构以选取其初始指标。其次,搜集相关数据,运用SEM对初始指标筛选获得最终指标,同时分别建立林业产业通过森林资源环境对森林生态作用的实证模型SEM_P和森林生态通过森林资源环境对林业产业作用的实证模型SEM_C以验证SMP和SM_C。最后,得到三者相互作用系数,定量测度了其相互作用程度,还揭示了其相互作用机理。研究表明:(1)林业产业、森林资源环境与森林生态两两相互影响,任何变量在另两个变量相互关系中发挥着部分中介作用且直接效应强度大于间接效应强度。(2)林业产业对森林生态、森林资源环境具有主导作用。(3)中国林业产业与森林生态相互关系正由恶性循环向良性互动过渡转化。(4)就目前数据计量所言,中国要达到林业生态安全和生态文明状态,还任重道远,亟需引起高度重视。未来本成果可用于林业生态安全和生态文明评价等研究,有利于深入探讨林业产业、森林资源环境与森林生态协调共生机制。

To overcome some defects in the existing research about their interaction between forestry industry and forest ecology at home and abroad,such as only confining the visual field to their own relationship in isolation from forest resources environment that they were located in,with forest resources environment mediator introduced,the paper utilized structural pressure-state-impact-response PSIR model and quantitative structural equation modeling SEM to determine their indicators and interaction coefficients,to quantitatively calculate their interaction degree,and to reveal their interaction mechanisms among forestry industry,forest resources environment and forest ecology.Then it could support some reference to coordinate forestry industry,forest resources environment and forest ecology,and to make some policies promoting ecological civilization construction.First the theoretical hypothesis models SMP under the operation from forestry industry to forest ecology and SM_C under the operation from forest ecology to forestry industry were respectively constructed based on their theoretic relationship among forestry industry,forest resources environment and forest ecology.And then the system structural model PSIR was constructed to select their original indicators out.Second,SEM was utilized to screen out the original indicators to obtain the final indicators with data collected.At the same time,the empirical models SEM_P under the operation from forestry industry to forest ecology and SEM_C under the operation from forest ecology to forestry industry were constructed to verify SM_P and SM_C.Finally,their interaction coefficients were obtained and their interaction degrees were also quantitatively calculated to reveal their interaction mechanisms.The results were shown as follows.（1）Any two of three had interaction and any one played a partial mediating role in the relationship of the other two and their direct effect degrees were larger than the indirect effect degrees.（2）Forestry industry dominated forest ecology and forest resources environment.（3）Their interactions between China＇s forestry industry and forest ecology were in a state of the transition from antagonistic to beneficial.（4）Their interactions between China＇s forestry industry and forest ecology were not in a symbiotic state and had not reached the status of forestry ecological security and ecological civilization.There would be a long way to go for China to achieve the symbiotic state between forestry industry and forest ecology.The level of forest ecological security and ecological civilization,in order to discuss the symbiotic mechanisms between forestry industry and forest ecology,is proposed to be measured in the future.