WANG Liye,SHI Chunchun,ZHANG Wenxin,et al.Evaluation of Cropland Ecological Security and Diagnosis of Its Obstacle Factors in Shandong Province in 2009—2019[J].Research of Soil and Water Conservation,2022,29(06):138-145,153.
2009—2019年山东省耕地生态安全评价及障碍因子诊断
- Title:
- Evaluation of Cropland Ecological Security and Diagnosis of Its Obstacle Factors in Shandong Province in 2009—2019
- 文章编号:
- 1005-3409(2022)06-0138-08
- Keywords:
- cropland; ecological security; PSR model; Shandong Province; obstacle factors
- 分类号:
- F301.21
- 文献标志码:
- A
- 摘要:
- 耕地生态安全是国家和区域生态安全的重要组成部分。为了明确认识耕地生态安全及其障碍因子、促进耕地生态与农业发展,利用PSR模型构建耕地生态安全的指标体系,基于第三次国土调查和第二次土地调查数据,评估了山东省2009—2019年的耕地生态安全变化,同时利用障碍度模型,诊断了影响耕地生态安全的障碍因子。结果表明:(1)山东省2009—2019年耕地生态安全整体上呈现下降的态势,生态安全指数由0.27下降至0.14;(2)2009—2019年不同地级市耕地生态安全状况变化不同,5个地级市呈现上升的趋势,4个地级市耕地安全基本稳定,7个地级市出现不同程度的下降;(3)二三产业从业人员比重、二三产业产值比重、农村居民人均可支配收入、耕地平均海拔和复种指数在2009—2019年是影响耕地生态安全的主要障碍因子。综上,2009—2019年山东省耕地生态安全出现下降的趋势,存在多个影响耕地生态安全的障碍因子。研究认为加强耕地污染治理、发展生态农业、缓解产业结构不平衡是改善耕地生态安全的关键措施。
- Abstract:
- Cropland ecological security is an important part of national and regional ecological security. In order to have a clear understanding of cropland ecological security and its driving forces and to promote cropland use and agricultural development, this study developed an index system according to Pressure-State-Response(PSR)model and based on the second and third national land survey data, evaluated the changes of cropland ecological security in Shandong Province in 2009—2019. Additionally, this study diagnosed the obstacle factors of cropland ecological security with the help of obstacle degree model. The results showed that:(1)The cropland ecological security in Shandong Province showed a downward trend from 2009 to 2019. According to the models used, the cropland ecological security score decreased from 0.27 to 0.14;(2)From 2009 to 2019, the changes of cropland ecological security in various prefecture level cities are different. Five prefecture level cities show an upward trend, and four prefecture level cities have a generally stable cropland ecological security, while seven prefecture level cities have decreased to varying degrees;(3)The proportion of employees in secondary and tertiary industries, the proportion of output value of secondary and tertiary industries, per capita disposable income of rural residents, average altitude of cropland and multiple cropping index are the main obstacle factors affecting the cropland ecological security from 2009 to 2019. In conclusion, in 2009—2019, the cropland ecological security in Shandong Province displayed a decreasing pattern and there were several factors that affected it. This study pointed out that strengthening cropland pollution control, developing ecological agriculture, alleviating the imbalance of industrial structure were important measures to improve the cropland ecological security.
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备注/Memo
收稿日期:2021-09-12 修回日期:2021-09-27
资助项目:国家自然科学基金“多尺度聚类知识挖掘与应用”(41771432)
第一作者:王立业(1994—),男,山东滨州人,博士研究生,研究方向为土地利用变化与生态系统服务。E-mail:lywang@whu.edu.cn
通信作者:关梅(1978—),女,内蒙古呼和浩特人,博士,中级经济师,主要从事调查监测、确权登记等研究工作。E-mail:1724016453@qq.com