摘要:农田对保障区域物质供给、生态系统服务供给有着不可替代的作用，为探究区域农田生态服务价值的时空变化和驱动因素，本文基于重庆市2007-2016年统计年鉴及相关年份区县年鉴数据信息，构建农田生态服务价值指标体系，引入物价指数，通过列表清单法对重庆市农田生态服务价值进行评估，利用STIRPAT模型分析各区县间人均农田生态服务价值差异的社会驱动因素。研究表明：①2007年、2012年和2016年重庆市农田生态服务价值分别为898.06亿元、938.97亿元和1 038.45亿元，呈明显上升趋势，增幅为15.63%；年均农田正向服务价值（1 024.49亿元）远高于其负向价值（59.02亿元）。②就农田生态服务价值空间变化而言，渝西片区的总量和人均变化幅度最大，为30.32%和16.80%，其中农业较为发达的永川区、江津区农田负向价值相对突出；人均年农田生态服务价值排序为：渝东南片区（5 855元·人-1）>渝东北片区（4 027元·人-1）>渝西片区（3 846元·人-1）>主城片区（840元·人-1）。③农业人口、城市化率、万元GDP能耗是重庆市各区县人均农田生态服务价值空间差异的社会驱动因素，主城片区的发展对其农田生态系统造成较大的压力，该区域应合理调整产业结构，以提升农田生态服务价值。研究结果为重庆市农田生态环境保护、恢复以及耕地补偿等提供科学依据。
关键词:农田/
生态服务价值/
列表清单法/
正向服务价值/
负向价值/
重庆市
Abstract:Farmland plays an irreplaceable role in ensuring the supply of materials and of ecosystem services. In this study, we aimed to explore the regional farmland ecological service value in terms of spatial and temporal changes as well as driving factors, based on the statistical yearbook of Chongqing from 2007 to 2016 and the counterpart annual data of the districts and counties in Chongqing in the relevant years. We constructed a farmland ecological service value index system, evaluated the farmland ecological service value in Chongqing based on the price index and tabulation and list method, and analyzed the social driving factors contributing to the difference in per capita farmland ecological service value among districts and counties in Chongqing using the STIRPAT model. The results showed that the values of farmland ecological services in Chongqing in 2007, 2012 and 2016 were ￥89.80 billion, ￥93.89 billion and ￥103.84 billion, respectively. The farmland ecological service value showed an evident upward trend with an increase rate of 15.63%. The 10-year mean farmland positive service value (￥102.45 billion) was considerably higher than its negative value (￥5.90 billion). In terms of the temporal change of farmland ecological services value, the total amount and per capita difference in the west of Chongqing were the most significant (30.32% and 16.80%, respectively). In the west of Chongqing, the farmland negative value of the Yongchuan and Jiangjin Districts, where agriculture is more developed, was relatively prominent. The farmland ecological service value ranked as follows:southeast of Chongqing (￥5 855 per person) > northeast of Chongqing (￥4 027 per person) > west of Chongqing (￥3 846 per person) > center of Chongqing (￥40 per person). The agricultural population, urbanization rate and energy consumption per ￥10 000 of GDP were the social driving factors attributable for the spatial difference of the per capita farmland ecological service value in all districts and counties of Chongqing. Development of the main city area had exerted a substantial pressure on its farmland ecosystem. The industry structure in this area should be rationally adjusted to improve the farmland ecological service value. The research results provide a scientific basis for the ecological environment protection, restoration, and compensation of farmland in Chongqing.
Key words:Farmland/
Ecological service value/
Tabulation and list method/
Positive service value/
Negative value/
Chongqing City
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