Driving Analysis on Ecological Security in Vulnerable Transition Areas of Mountain and Plain

山地平原脆弱典型区生态安全驱动研究(英文)

[Objective] This study aimed to investigate the driving mechanism of eco- logical security in vulnerable areas in mountain and plain. [Method] The ecological security evaluation index system of Lincheng County was established using PSR model. Driving mechanism was analyzed in total system and subsystems respectively by the principal components. The ecological safety driving factor was calculated through the total system and subsystem respectively. And the intersection was adopt- ed as dominant driving factor. [Result] A total of 10 indices including density index of rivers, land degradation index, farmland drought and flood insurance yield, human in- terference index, population density, the natural population growth rate, per capita GDP, the R＆D funds spending accounts for the proportion of GDP, laborer by edu- cation degree and three industry accounted for the proportion of GDP, are the domi- nant driving factors of the regional ecological security. [Conclusion] This study will pro- vide reasonable and feasible advice for the benign development of the area.

[目的]研究影响山地平原脆弱典型区生态安全的驱动因子。[方法]基于PSR模型,根据山地平原区的脆弱性特征,选取26项指标构建临城县生态安全评价指标体系,应用2000～2009年的时间序列数据作为研究样本,探索性地在总系统和子系统中分别运用主成分分析法进行驱动机制研究,通过分别计算总系统和子系统的生态安全驱动因子,两者取交集确定主导驱动因子。[结果]水网密度指数、土地退化指数、农田旱涝保收率、人类干扰指数、人口密度、人口自然增长率、人均GDP、R&D经费支出占GDP的比例、劳动者受教育程度及第三产业占GDP比重等10项指标是影响该区域生态安全的主导驱动因素。[结论]该研究为该地区的良性发展提供合理可行的参考依据。