| 李久枫1，2，刘艳艳1，吴大放1，杨木壮1，陈震霖1.近30 年珠海市耕地生态安全评价及未来预测[J].广东农业科学,2017,44(1):156-166 |
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近30 年珠海市耕地生态安全评价及未来预测 |
| Evaluation of cultivated land ecological security in Zhuhai city in recent 30 years and its future prediction |
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| DOI：10.16768/j.issn.1004-874X.2017.01.024 |
| 中文关键词: 耕地生态安全 PSR 模型 灰色系统理论 珠海市 |
| 英文关键词: cultivated land ecological security PSR model Grey system theory Zhuhai city |
| 基金项目:国家自然科学基金 (41101078)；广东省教育厅特色创新项目（2014KTSCX090）；教育部人文社会科学
研究规划项目（14YJA630083）；广州市哲学社会科学“十二五”规划项目（15Q28）；广东省教育厅省级大学生创新
训练项目（201511078019，CX2015025，201611078085） ；广州大学2015 年示范性实验建设项目“地理信息系统在土
地利用规划中的应用” |
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| 摘要点击次数: 2140 |
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| 中文摘要: |
| 开展耕地生态安全评价有利于耕地资源的可持续利用与国家粮食安全。为了解珠海市耕地
生态安全状况，构建了基于PSR 模型的评价指标体系。运用熵值法确定各项指标权重，定量分析1985—
2014 年珠海市耕地生态安全值，采用等间距法将耕地生态安全级别划分为不安全、较不安全、临界安全、
较安全、安全5 个等级，并引入灰色系统理论预测2015—2020 年珠海市耕地生态安全等级，分析其驱动
因素。研究结果表明：1985—2014 年珠海市耕地生态安全综合值呈U 型变化，安全等级经历了较安全- 临
界安全- 较安全- 临界安全- 较不安全- 临界安全- 较不安全- 临界安全的演变历程，耕地生态安全等
级于1999 年之后显著转好；2015—2020 年珠海市耕地生态安全综合值呈上升趋势，安全等级由临界安全
发展到较安全，未来耕地生态安全水平较为乐观；人口增长与经济发展导致的人地矛盾仍是影响耕地生态
安全水平的关键因素。 |
| 英文摘要: |
| The evaluation of cultivated land ecological security is conducive to the sustainable utilization of
cultivated land resources and national food security. In order to understand the situation of cultivated land ecological
security in Zhuhai City，the evaluation index system based on PSR model was constructed. Entropy method was used
to determine the weight of every index，and then quantitatively analyzed Zhuhai ecological security of cultivated land
value in 1985-2014，the cultivated land ecological security level was divided into five grades such as insecurity，
less secure，criticality safety，relative safety，safety. In this paper，the grey system theory was introduced to predict
cultivated land ecological security level in Zhuhai City in 2015-2020，analyzes the driving factors were analyzed.
Results showed that，the Zhuhai ecological security of cultivated land comprehensive value showed a U-shaped curve
in 1985-2014，safety - experienced relative safety - critical safety - relative safety - critical safety - less safety -
critical safety - less safety - critical safety evolution. The cultivated land ecological security level was significantly
improved after 1999. Zhuhai ecological security of cultivated land comprehensive value assumed the trend of escalation in 2015-2020，security level from critical security development to relative safety，the future level of
ecological security of cultivated land was more optimistic. The contradiction between population nature and economic
development was still the key factor to influence the level of cultivated land ecological security. |
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