| 基于粮食安全的区域耕地压力测算——以江苏省为例 |
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| 引用本文： | 岳秋丽,白明哲.基于粮食安全的区域耕地压力测算——以江苏省为例[J].中国农学通报,2012,28(18):297-301. |
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| 作者姓名： | 岳秋丽 白明哲 |
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| 作者单位： | 1. 宿迁学院五系,江苏宿迁,223800
2. 中国矿业大学环测学院,江苏徐州,221008 |
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| 基金项目： | 国家青年基金项目“基于SPAC系统的氮迁移动力学及模拟研究”（51009134）; 宿迁学院科研基金项目“宿迁市土地资源安全测度及预警研究”（2011KY33） |
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| 摘 要： | 为了探究江苏省耕地资源的安全状况,以便为有效地进行耕地利用、保护和管理提供一定的参考,采用江苏省1971—2009年修正后的耕地数据,使用最小人均耕地面积和耕地压力指数对江苏省及其地市耕地压力进行测算。结果表明,在20世纪的后20年,家庭联产承包责任制的实施,解放了农业生产力,耕地压力指数呈逐年减小的总趋势;进入21世纪后,城市化和工业化建设对耕地的大量占用,以及农民种粮积极性的降低,使得耕地粮食综合生产力下降,耕地压力逐渐增大,继而政府进行的宏观调控,又使全省平均耕地压力有所缓解。然而,全省13个地市耕地压力程度呈现出显著差异,其中南京、无锡、苏州和常州耕地承受巨大压力;徐州、镇江和南通耕地压力初现;其余6个地市无耕地压力。基于粮食安全的耕地压力研究表明,缓解耕地压力的途径一是提高耕地粮食综合生产力,二是防止耕地的继续流失。
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| 关 键 词： | 耕地资源 最小人均耕地面积 耕地压力指数 调控对策 江苏省 |
| 收稿时间： | 1/5/2012 12:00:00 AM |
| 修稿时间： | 2012/2/19 0:00:00 |
Calculation for the Pressure on Cultivated Land Based on Food Security: The Case of Jiangsu Province |
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| Yue Qiuli
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Bai Mingzhe.Calculation for the Pressure on Cultivated Land Based on Food Security: The Case of Jiangsu Province[J].Chinese Agricultural Science Bulletin,2012,28(18):297-301. |
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| Authors: | Yue Qiuli Bai Mingzhe |
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| Institution: | 1 5 Departments of Suqian College,Suqian Jiangsu 223800;2 School of Environment Science and Spatial Informatics of CUMT,Xuzhou Jiangsu 221008) |
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| Abstract: | In order to study the security status of cultivated land of Jiangsu Province to provide the basis for effective utilization,protection and administration of cultivated land,the degree of pressure of cultivated land use in Jiangsu Province and causes of that were analyzed,based on which revised data of Jiangsu Province from 1971 to 2009 were selected,and the minimum area of cultivated land per capita and pressure index of cultivated land in this region during this period were calculated.The results indicated that pressure index of cultivated land showed a downward tendency in the fluctuation due to implementation of the household contract responsibility system;since the 2000s,the grain comprehensive production capacity that was decreased by natural calamities frequently occurred and the slipped grain growing activism of the peasant,began to impose pressure on the cultivated land of Jiangsu Province,but the pressure had been relieved in recent years.By the end of 2009,there had been a considerable discrepancy in the degree of cultivated land pressure between the thirteen prefecture-level cities of Jiangsu Province,among which the cultivated land of Nanjing,Wuxi,Suzhou and Changzhou had been bearing a tremendous pressure,and the cultivated land pressure of Xuzhou,Zhenjiang,Nantong had began to emerge,while that of the others had bear no pressure.The study on the cultivated land pressure based on grain security showed that there were two approaches to relive the cultivated land pressure of Jiangsu Province,one of which was to enhance the grain comprehensive production capacity of the cultivated land,while another one of which was to prevent continued loss of the cultivated land. |
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| Keywords: | cultivated land minimum area of cultivated land per capita pressure index of cultivated land regulation strategies Jiangsu Province |
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