地理科学进展 ›› 2011, Vol. 30 ›› Issue (4): 479-484.doi: 10.11820/dlkxjz.2011.04.011

• 区域经济 • 上一篇    下一篇

江西省食物供给时空格局

王情1, 岳天祥1, 范泽孟1, 孙晓芳1, 辛晓平2   

  1. 1. 中国科学院地理科学与资源研究所资源与环境信息系统国家重点实验室,北京100101;
    2. 中国农业科学院农业资源与农业区划研究所,北京100081
  • 收稿日期:2010-07-01 修回日期:2010-11-01 出版日期:2011-04-25 发布日期:2011-04-25
  • 通讯作者: 岳天祥, 研究员,博士生导师。 E-mail:yue@lreis.ac.cn
  • 作者简介:王情(1983-),女,博士研究生,中国地理学会会员,主要研究方向为GIS 应用,资源环境模型与系统模拟,食物供给等。E-mail: wangq.08b@igsnrr.ac.cn
  • 基金资助:

    中国科学院知识创新工程重要方向项目(kzcx2-yw-429);国家科技支撑计划课题(2006BAC08B04);资源与环境信息系统国家重点实验室自主研究项目(081105)。

Spatial-Temporal Patterns of Food Provision in Jiangxi Province

WANG Qing1, YUE Tianxiang1, FAN Zemeng1, SUN Xiaofang1, XIN Xiaoping2   

  1. 1. State Key Laboratory of Resources and Environmental Information System,Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
    2. Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
  • Received:2010-07-01 Revised:2010-11-01 Online:2011-04-25 Published:2011-04-25

摘要: 江西省是我国的粮食大省,对未来国家粮食安全具有重要意义。本文分析了江西省1980-2005 年的各类食 物产量变化趋势,并结合食物营养转化式和不同生活水平的食物营养需求标准,对江西省食物营养供给总量和供 需平衡进行时空格局分析,得出:①稻谷产量约占江西粮食总产量的95%,并一直保持增长趋势,而油料、大豆、薯 类和甘蔗产量1998 年以后均有下降趋势。②江西省的食物营养供给总量较为富余。2005 年食物热量、脂肪和蛋 白质的产量分别达到80.76×1012 kcal、222.67 万t 和137.68 万t,按照小康的生活标准,分别可供养9794、7532 和 5588 万人,均高于江西省2005 年的实际人口。③江西省食物营养供给呈稳步增长趋势,1980-2005 年食物脂肪供 给增加了7.40 倍,热量和蛋白质分别增加了0.84 倍和1.30 倍。④江西省食物供给结构不均衡——食物热量的供 给能力最强,90%的县市供给盈余,蛋白质次之,食物脂肪的供给能力相对最弱,2000 年以后仍有1/2 以上县市供 给不足。应优化食物种植结构,重视油脂类作物的种植,提高食物脂肪的供给能力。⑤江西省食物供给能力较强 区域主要分布在水土资源条件较好的鄱阳湖周边区域及赣江流域的部分县市。加强这些地区的耕地保护,对确 保未来食物供给持续发展具有重大意义。

关键词: 江西省, 时空格局, 食物供给

Abstract: Jiangxi Province is one of the most important grain-production provinces in China. It is significant to understand the detail of food provision in Jiangxi Province. This paper analyzed the yield trend of food production in Jiangxi during 1980-2005. Food nutrition conversion formula and nutrition consumption standards were used to calculate the food provision. Overall food provision as well as spatial-temporal pattern of food provision and equilibrium of supply and demand were elucidated and demonstrated. The results show that, (1) rice accounts for 95% of total plant food output and the production of rice has been rising with tiny waves throughout the studying period, while the outputs of oil seeds, soybean, potato and sugarcane show downtrends since 1998, after rising for 15 years or so; (2) on the whole, food provision in Jiangxi Province is surplus. Taking the year of 2005 as an example, the outputs of food calorie, protein and fat amount to 80.76 nut12 kcal, 2.2267 million ton and 1.3768 million ton respectively, which can support 97.94, 75.32 and 55.88 million people respectively with a full-well-to-do living standard; (3) food provision of Jiangxi Province is increasing steadily, especially food fat provision, which increased 7.4 times in 2005 copmared to that in 1980 and provision of food calories and protein increased by 1.84 and 2.30 times respectively compared to 1980; (4) food provision of Jiangxi faces the problem of imbalance, food calories superabundance and food fat deficiency, so it is necessary to improve the planting structure and more fat-rich crops should be planted to heighten food fat provision so as to balance the food supply; (5) counties near the Poyang Lake and Ganjiang River basin has higher food output than other regions in Jiangxi, thanks partly to better availability of water resources. Therefore, it is important to protect the cropland in these high-yield regions and make a full use of the unused lands to maintain the sustainable food provision for Jiangxi as well as for China.

Key words: food provision, Jiangxi Province, spatial-temporal pattern