论文部分内容阅读
本研究在秦岭自然保护区群成本效益计量研究成果的基础上,对成本效益进行进一步分析及预测。运用统计软件SPSS17.0结合十余种拟合曲线,根据秦岭自然保护区群中7个国家级自然保护区的成本效益截面数据,尝试性地进行了综合效益及三大成本之间关系曲线拟合。研究结果表明:根据模型拟合优度R2大小及显著水平Sig.判断,最终得出了成本效益之间的关系式。即三个拟合函数分别是:①综合效益(Qt)与直接保护成本(Xa)的函数曲线方程为:Qt=-68.244+870.688Xa-2493.849Xa2+2304.879Xa3;②综合效益(Qt)与间接保护成本(Xb)的函数曲线方程为:Qt=17.844e1.986Xb;③综合效益(Qt)与机会保护成本(Xc)的函数曲线方程为:Qt=-78.157+104.775Xc-32.953Xc2+3.296Xc3。本研究结果可以为国家有关部门进行保护区投资做有益的帮助,同时为陕西省自然保护区保护政策的完善做理论支撑。
Based on the results of cost benefit measurement in Qinling Nature Reserve, this study further analyzes and predicts the cost-effectiveness. Using the statistical software SPSS17.0 combined with more than ten kinds of fitting curves, according to the cost-benefit cross-section data of seven national nature reserves in Qinling Nature Reserve, tentatively carried out the relationship between the comprehensive benefit and the three major costs Together The results show that according to the model fitting goodness-of-fit R2 size and significant level Sig. Judgment, the relationship between cost-effectiveness is finally obtained. That is, the three fitting functions are: (1) The functional curve equation of comprehensive benefit (Qt) and direct protective cost (Xa) is: Qt = -68.244 + 870.688Xa-2493.849Xa2 + 2304.879Xa3; The function curve equation of protection cost (Xb) is: Qt = 17.844e1.986Xb; ③ The function curve equation of comprehensive benefit (Qt) and opportunity protection cost (Xc) is: Qt = -78.157 + 104.775Xc-32.953Xc2 + 3.296Xc3 . The results of this study can be helpful to the relevant departments of the State in investing in protected areas and at the same time providing theoretical support for the improvement of the nature reserve protection policy in Shaanxi Province.