引用本文:周洪1, 阎建忠1, 王秀圆1, 李秀彬2.基于农户尺度的山区生态压力及其影响因素分析———以重庆市为例[J].西南大学学报(自然科学版),2017,39(8):34~42
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基于农户尺度的山区生态压力及其影响因素分析———以重庆市为例
周洪1, 阎建忠1, 王秀圆1, 李秀彬2
作者单位
周洪1, 阎建忠1, 王秀圆1, 李秀彬2 1. 西南大学 资源环境学院重庆 400715; 2. 中国科学院 地理科学与资源研究所北京 100101 
摘要:
生态压力反映了人类对自然界的干扰,其值的降低预示着地区的森林转型和植被恢复.基于重庆市山区1 015份问卷调查数据,采用本地生态足迹的方法来度量农户尺度山区的生态压力,并运用多元线性回归模型分析影响山区生态压力的主要因素,重点分析山区农村劳动力转移对生态压力的影响.研究发现:1) 研究区人均生态压力为1.590 hm2,农户的薪柴采集活动是山区生态压力的主要来源;2) 家庭总人口、非农劳动力年均工资水平、家庭农业收入、家庭拥有电器数量以及地区哑变量武隆县和巫山县对山区的生态压力产生显著影响;3) 山区农村劳动力的转移确实能够降低地区的生态压力,但是在作用路径上,并不是通过减少农村劳动力的数量,而是通过提高非农劳动力的工资水平、增加农户务农的机会成本发生作用的.
关键词:  生态压力  影响因素  农户尺度  生态足迹  山区  重庆  
DOI:10.13718/j.cnki.xdzk.2017.08.005
分类号:
基金项目:国家自然科学基金项目(41161140352和41601089);中央高校基本业务费专项资金项目(SWU113072和XDJK2014C189)
Analysis of Ecological Pressure in a Mountainous Area and Its Influencing Factors Based on Household Level——Taking Chongqing as an Example
ZHOU Hong1, YAN Jian-zhong1, WANG Xiu-yuan1, LI Xiu-bin2
Abstract:
Ecological pressure is the human disturbance to the nature, and a decreased value of it will suggest regional forest transition and vegetation recovery. Previous studies of ecological pressure focused on large-scale researches, such as global, national and regional. Researches based on a household level were very scarce. Therefore, based on a field survey of 1 015 households in a mountainous area of Chongqing, this paper measures the ecological pressure in the mountainous area on the micro-scale of household, with a method of local ecological footprint, and a multiple linear regression model is used to analyze the influencing factors. Furthermore, great emphasis is placed on the influence of labor force emigration on the ecological pressure in the mountainous area. The result shows that the ecological pressure per capita in the study area is 1.590 hm2, and fuel wood collection is the primary source of ecological pressure in the mountainous area. Household total population, average annual wage of non-farm labor, household farm income, number of household electric appliances, and regional dummy variables Wulong County and Wushan County have significant impact on the ecological pressure in the mountainous area. Rural labor force emigration in the mountainous area can definitely reduce the ecological pressure. But as for the mechanism, it is not by cutting down the number of rural labor force, but by improving the average annual wage of non-farm labor and further increasing the household' opportunity cost of farming.
Key words:  eological pressure  influencing factor  farmer household scale  ecological footprint  mountainous area  Chongqing  
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