陕西省农业生产潜力与粮食安全实证研究
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摘要
耕地是人类宝贵的自然资源,是粮食生产的基础,对粮食安全、经济发展和社会稳定至关重要。近些年来各级政府为了发展农村经济和改善生态环境,实施了农业产业结构调整和退耕还林(还草)工程,导致大量耕地被转型;同时随着西部大开发进程的加快,能源基地建设和道路建设永久性的占用耕地日益严重,导致耕地面积大幅缩减,粮食总产抬升艰难;而人口数量指数增加,粮食需求迅速增长,粮食供给与需求矛盾日益突出,区域粮食安全受到严重威胁。
     针对这一问题,本文从时间(1978-2008)和空间尺度(陕西省各县域为研究单元),对陕西省农业生产潜力和粮食安全状态进行了区域宏观层面和农户微观层面的深入研究。宏观层面研究基于陕西省农业生产的历史和现状,详细分析耕地生产潜力及其影响因素,运用定性和定量相结合的方法对陕西省粮食需求量、未来耕地保有量和食物生产能力进行预测,提出粮食安全预警模型评估陕西省粮食安全态势;微观层面采用农户调研方法进行实证研究,从农户微观层面分析农户粮食安全状态及其影响因素,获得如下主要研究结果:
     (1)明确了陕西省过去30年耕地变化动态及其主要驱动力,以及人地矛盾中耕地压力程度和利用程度,认为陕西省耕地变化三大驱动因素为生态建设退耕、农业结构调整、能源基地与道路建设,其中生态退耕是耕地减少的主要驱动因素,其次是农业结构调整占用耕地,农业结构调整以果业基地建设为主要形式。
     (2)明确了陕西省粮食总产及其构成、单产与人口的变化规律及其主导因素,分析了1978-2010年陕西省粮食供需平衡的变化规律,总体表现为需求大于供给,粮食产量虽然逐年增加,但所增加粮食被新增人口消费所抵消,使陕西省粮食自给率维持在85%左右;陕西省粮食产量的空间分布规律表现出关中地区>陕南地区>陕北地区;关中地区是陕西省粮食供应区,陕北为粮食消费区,陕南为粮食供需平衡区。
     (3)核算了陕西省耕地、主要作物和主要生态类型区的生产潜力及其空间分布规律,认为陕西省耕地生产潜力具有明显的地域差异,耕地光合生产潜力最大区域分布在渭北旱塬东南部和关中平原北部;光温生产潜力最高地区分布在渭北旱塬及关中平原东部地区;气候生产潜力最高区域主要集中在渭南地区、安康地区、汉中盆地和关中平原的西部等;土壤生产潜力空间分布图与气候生产潜力差异较大,土壤生产潜力中部最高,陕北和陕南地区相对较低,总体上呈现为关中>陕南>陕北趋势。关中地区的关中盆地东部,渭北高原,即土壤生产潜力较高,平均为35.47t/hm~2,是陕西省自然条件下土地生产潜力较高的区域。
     (4)陕西省粮食可实现增产潜力分布从北到南依次为低—高—低—高—低的总体分布规律,可实现增产潜力最大区域分布于陕北中部和关中西部,而陕南大部分地区可实现增产潜力最小,陕北北部和关中北部可实现生产潜力居中。按照每个地区粮食单产均达到该地区目前粮食单产最高记录水平,那么陕西省未来粮食可实现增产潜力为1124.2×10~4t,和目前陕西省粮食总产量相当。
     (5)评价了陕西省与不同类型区的粮食安全现状,陕西省粮食自给率在80%左右,口粮自给率不足50%,粮食处于不安全状态。农户食物安全主要受制于食物购买能力,而不是粮食产量,因而提高农户收入水平以提高农户食物获取能力,是解决农户食物安全的根本途径。
     (6)提出了陕西省未来确保粮食安全的发展策略,宏观区域方面应该严格保护现有耕地数量和提高耕地质量并举、多途径做好粮食储备、粮食流通及进出口工作、严格控制人口增长、大力发展农田水利设施、保护生态环境保障农业可持续发展、加强粮食政策的体统协调和综合分析,来确保区域粮食—经济—社会可持续发展。微观农户层面应该因地制宜突出特色发展农户经济来提高农民收入,提高农户在食物获取竞争中的能力,来保障农户粮食安全。
Cultivated land is the valuable natural resources and the base of food production, it isvery important to food safety, economic development and society stability,recently, somemeasures were taken by governments to develop rural economic and improve ecologicalenvironment, which contains agricultural industrial structure adjustment(AISA), grain forgreen project(GGP) and west development project. Those measures as well as the permanentoccupation of cultivated land because of energy base and road building lead to reduction ofcultivated land and foods production dramatically; meanwhile, the total food demand hasbeen increasing with the increasing populations. So the contradictions between food supplyand demand become increasingly prominent, and regional food security is seriouslythreatened.
     This paper, looks from the angle of time and space, focuses on the capacity of agricultureproduction and the struts of food security in regional macro level and household micro levelrespectively in Shaanxi. As regional macro aspect, the paper presents the situation ofagriculture producing from1978to present, and than analyzed the capacity of cultivated landand its influence factors, using qualitative and quantitative methods estimated the graindemand, amount of cultivated land reserved and grain production capacity of Shaanxi,meanwhile, raising the food security warming model to assess the status of food security; Ashousehold micro aspect, we used empirical study based on household face to face interviewand questionnaires interview to analyze household food security and its influence factors.
     The results showed that (1) the driving factors of changing cultivated land are GGP,AISA and Energy Base and Road Building. Among the three factors, GGP is main factor toreduce amount of cultivated land, follow with the AISA, which occupied the cultivated landby orchard growing.
     The food demand more than food supply form1978to2010in Shaanxi province,although the food production has been increasing year by year, the increased food productionwas offset by food consumptions of additional population, so the food self-sufficient rate isabout85%during this time; the special distribution of food production demonstratedGuanzhong where is food supply area Shannan where is balance area of food supply and consumption Shanbei where is food consumption area.
     There are obvious regional-differences of cultivated land potential productivity amongcountries, the highest areas of photosynthetic productivity located in north Guanzhong plainand south Weibei arid plain; the highest value of photosynthesis-temperature potentialproductivity located in east of Guanzhong plain and Weibei arid plain; the highest value ofclimate potential productivity located in Weinan city, Ankang city, Yang county of Hangzhongbasin, Qianyang county, Linyou county and Baoji county; the soil potential productivitypresented Guanzhong Shannan Shanbei, the highest value of it located in east ofGuanzhong plain and
     Weihe basin, the average value reaches to35.47t/hm~2under natural conditions.
     Space distinction of realizable production capacity of cultivated land in Shaanxi showedthat low–high–low–high–low from north to south, the highest value of realizableproduction capacity located in mid Shanbei and west Guanzhong, follow by north of Shanbeiand Guanzhong, the lowest located in Shannan. If the grain yield per unit of each city reachesto the highest record of its counties respectively, the realizable increase grain production is1124.2×10~4t, so the total grain population will be doubled.
     The grain self-sufficient rate is about85%, grain ration self-sufficient rate is less than50%, so the status of food security is upset. Therefore, the status of household food securitywas largely affected by the purchasing power (net household income rather) than the grainyield, so enhancing food obtain capacity is a key measure to safeguard food security.
     There are two countermeasures to safeguard food security in Shaanxi, first is regionalmacro level part, which contents protecting of cultivated land as well as improving thequality of cultivated land, making grain storage and distribution and export and import well,controlling population growth, developing the farming irrigation facilities, protecting theagricultural environment, enhancing the grain policies comprehensive analysis, ensuring thesustainable development between grain yield and economic and society. As household microaspect, increasing the household net income by developing characteristic economy accordingto the conditions of each areas, and than enhancing the competitiveness of food obtain tosafeguard food security.
引文
蔡防.1994.比较优势与农业发展政策,经济研究,(6):33-40
    曹卫星,朱艳,汤亮,荆奇,田永超,姚霞,刘小军.2008.数字农业技术.北京:科学出版社
    陈百明,周小萍.2002.全国及区域性人均耕地阈值的探讨.自然资源学报,(5):622-628
    陈百明.2001.中国农业资源综合生产能力与人口承载能力.北京:气象出版社
    陈锡文.1994.中国当前粮食问题透视.经济导刊,(3):32-35
    德拉·汤普逊.2000.牛津简明英语字典.北京:外语教学与研究出版社
    邓大才.2003.粮食经济安全与粮食自给率.岭南学刊,(1):55-58
    丁声俊,朱立志.2003.世界粮食安全问题现状.中国农村经济,(3):71-80
    丁声俊.2009.论国家粮食储备和粮食价格分析.农产品加工(创新版).3:7-9
    丁守海.2008.当前粮食安全形势:评估、比较及建议.财贸经济,(9):105-110
    傅泽强,蔡运龙,杨友孝.2001.中国粮食安全与耕地资源变化的相关分析.自然资源学报,(4):313-319
    顾海兵,余翔,沈继楼.2008.中国粮食安全研究的新架构.国家行政学院学报,(3):39-42
    郭柏林.1996.我国人均粮食变化的地理研究.地理科学,(16)3:238-233
    郭书田.1995.粮食政策:理论与实践.北京:新华出版社
    郭兆元.1992.陕西土壤.北京:科学出版社
    贺一梅,杨子生.2008.基于粮食安全的区域人均粮食需求量分析.经济理论研究,(7):5-7
    黄季焜,斯.罗泽尔.1998.迈向21世纪的中国粮食经济.北京:中国农业出版社
    黄季焜.1995.迈向21世纪的中国粮食[R]黄季焜.2004.中国粮食安全问题.中国农村经济,(10):4-10
    黄季焜.2008.中国的粮食安全面临巨大的挑战吗.科技导报,(5):17-18
    黄黎慧,黄群.2005.我国粮食安全问题与对策.粮食与食品工业,(5):13-15
    柯炳生.1995.中西部农村地区奔小康与经济结构转变闭.农业经济问题,16(5):48-53
    赖红兵.2008.中国粮食产量波动及其结构分析.农业技术经济,(5):91-96
    蓝海涛.2006.中国中长期粮食安全重大问题.北京:中国计划出版社
    李长风.1991.粮食经济四百题.北京:中国商业出版社
    李霖英.2007.陕西省苹果种植产业持续发展的思考.科技信息,(27):12-13
    李鹏.1996.中国是维护世界粮食安全的重要力量
    李世奎,欧阳海,后光良.1988.中国农业气候资源和农业气候区划.北京:科学出版社
    李晓晨,连飞.2008.从恩格尔系数和收入看我国城乡居民生活差异.青海统计,(2):36-39
    李玥.2007.恩格尔系数在实际应用中的问题与现象剖析.统计与决策,(9):66-67
    李振声.2008.保面积,攻单产,节消费——关于我国粮食生产与消费的几点思考.求是,(6):34-37
    刘晓梅.2004.关于我国粮食安全评价指标体系的探讨.财贸经济,(9):56~61
    刘旭华,王劲峰,刘明亮.2005.中国耕地变化驱动力分区研究.中国科学D刊,35(11):1087~1095.
    龙方.2007.新世纪中国粮食安全问题研究.长沙:湖南农业大学出版社
    卢冬梅,罗倩仪,刘文英,王保生.2003.江西近40年温度变化及对农业生产的影响.江西农业大学学报(自然科学版),25(5):53-57
    卢锋.1999.应当实事求是地认识粮食过剩问题:对“粮食无过剩”观点的质疑.管理世界,(3): l68-175
    吕耀.1996.中国食物保障可持续性及其评份
    马国南,郜若素.1993.中国粮食研究报告.北京:北京农业大学出版社
    马九杰,张象枢,顾海兵.2001.粮食安全衡量及预警指标体系研究.管理世界,(1):154-162
    马晓河,蓝海涛.2008.中国粮食综合生产能力与粮食安全.北京:经济科学出版社
    孟繁盈,许月卿.2008.我国食物安全研究进展及展望.地理科学进展,(2):89-95
    任志远,张艳芳.2003.土地利用变化与生态安全评价.北京:科学技术出版社
    山仑,康绍忠,吴普特.2004.中国节水农业.北京:中国农业出版社
    陕西省国土资源厅.2002-2007.陕西省国土资源公报
    陕西省粮食局.2009.陕西粮食供需处紧平衡状态.人民网,来源:http://nc.people.com.cn/GB/61156/61927/9665266.html
    陕西省农业区划委员会.1988.陕西省农业地图册.西安:西安地图出版社
    陕西省农业厅.2008年陕西省果业发展统计公报.[EB/OL].2009.网址:http://www.sei.gov.cn/.
    陕西省人民政府.2007~2008.陕西国民经济和社会发展统计公报[EB/OL],.http://www.sei.gov.cn/.
    陕西省统计局.2008.陕西省统计年鉴.北京:中国统计出版社
    上官周平,彭珂珊,彭琳,王龙昌.1999.黄土高原粮食生产与持续发展研究.西安:陕西人民出版社
    上官周平,彭珂珊,张俊飙,李全根.1998.中国粮食问题观察.西安:陕西人民出版社
    沈茂胜.2010.我国粮食进口、自给率及粮食安全问题的思考.粮油加工,(1):41-47
    史培军,杨明川,陈世敏.1999.中国粮食自给率水平与安全性研究.北京师范大学学报(社会科学版),(6):74-80
    世界银行.1998.中国的粮食安全:长期问题与可选方案.北京:中国财政经济出版社
    孙复兴,黎志成.2005.关于构建我国粮食安全评估指标体系的思考.改革论坛,(4):175-177
    孙辉.2008.2008世界粮食产量预测.粮油食品科技,16(5):10
    唐克丽.2004.中国水土保持.北京:科学出版社
    田涛,陈秀峰.2010.气候变化对我国农业环境的影响及对策.农业环境与发展,(4):23-25
    万宝瑞.2004.增加农民收入和确保粮食安全的战略对策.农业经济问题,(4):4-7
    王德文.2001.双轨制度对中国粮食市场稳定性的影响.管理世界,(3):127-134
    王西安.1995.陕西经济地理.西安:西安地图出版
    王晓红,穆维松.2006.河北省玉米生产循环波动研究与分析.河北农业科学,(10)2:59-61
    王雅鹏.2001.我国粮食安全的隐患与压力—有关粮食安全若干问题的探讨.调研世界,(11):19-23
    王玉斌,陈慧萍.2008.中国粮食产量波动及其国际比较.新疆农垦经济,(6):29-32
    吴林荣,王娟敏,刘海军,孙娴.2010.陕西省太阳辐射及其日照时数的时空变化特征.水土保持通报,30(2):212-214
    吴天锡.2001.粮食安全的新概念和新要求.世界农业,(6):8-10
    吴志华,胡学君.2003.中国粮食安全研究述评.江海学刊,(3):69-73
    吴志华.2003.中国粮食安全研究述评.粮食经济研究,(l):48-61
    徐逢贤.1999.谁来养活中国人——议布朗“中国粮食危机论”.广角镜,(9):32-33
    许皞,门明新,陈亚恒.2009.确保粮食安全的耕地资源保控技术体系研究.北京:中国农业出版社
    叶敬忠,安苗.2009.农业生产与粮食安全的社会学思考.农业经济问题,(6):8-13
    尹成杰.2009.世界粮食供需的严峻形势.农村工作通讯,(12):30-31
    尹力军,郝瑞彬.2008.中国耕地资源流失态势及主要影响因素分析.农机化研究,(11):1-4
    虞国平.2009.我国粮食供需现状及发展对策.现代农业科技,(4):237-241
    张迪,张凤荣,安萍莉.2004.中国现阶段后备耕地资源经济供给能力分析.资源科学,26(5):46-52
    张红宇.1996.粮食增长与农业规模经营闭.改革,(3):40-46
    张宏.2004.陕西粮食安全的实证分析.陕西师范大学学报,(33):81-84
    张平.2008.农村贫困人口最低生活保障方式研究.财会月刊,(6):86-87
    张忠良.2007.关于十七大报告中粮食安全概念的理解与思考,网络资源:(http//qkzz.net/article/558580a1-b928-4804-96d2-dc41074da634.htm)
    赵其国,周生路,吴绍华,任奎.2006.中国耕地资源变化及其可持续利用与保护对策.土壤学报,43(4):662-672
    郑杭生,李迎生.2003.全面建设小康社会与弱势群体的社会救助中国人民大学学报,(01):2-8
    郑杭生.200.中国人民大学中国社会研究报告-弱势群体与社会支持(2002).北京:中国人民大学出版杜
    中国国务院新闻办公室.1996.中国粮食问题白皮书
    中国科学院.2003.重新审视中国食物安全问题.中国科学院资环局研究报告
    中国科学院国情分析小组.1993.开源与节流. http//news.xinhuanet.com/ziliao
    中国粮食储藏科技网.2009.知识普及-中外粮食概念比较.[EB/OL].www.grainstorage.net
    中国中长期食物发展研究组.1991.中国中长期食物发展战略.北京:中国农业出版社
    中华人民共和国国家统计局.2009.中国统计年鉴.北京:中国统计出版社
    中华人民共和国国务院.2004-2010.中共中央、国务院关于促进农民增收若干政策的建议
    中华人民共和国国务院.2005.国务院关于进一步深化粮食流通体制改革的意见
    中华人民共和国国务院.2009.全国新增1000亿斤粮食生产能力规划
    中华人民共和国国务院新闻办公室.1996.中国的粮食问题.北京:国务院新闻办公室
    中华人民共和国农业法.2003.北京:法律出版社
    中华人民共和国中央人民政府.2000.中共中央关于制定国民经济和社会发展第十个五年计划的建议
    周健民.2003.新世纪土壤学的社会需求与发展.中国科学院院刊,(5):348-352
    周健民.2003.新世纪土壤学的社会需求与发展.中国科学院院刊,18(5):348-352
    朱希刚,刘延风.1997.我国农业科技进步贡献率测算方法的意见.农业技术经济,(11):17-23
    朱希刚,刘延风.1997.我国农业科技进步贡献率测算方法的意见.农业技术经济,(11):17-23
    朱泽.1998.中国粮食安全问题:实证研究与政策选择.武汉:湖北科学技术出版社.
    Ademola K B.2009. Agricultural land-use change during economic reforms in Ghana.Land Use Policy,26:763-771
    Albert O.1988. Short-run supply management and food security:Results from Pakistan and Kenya. WorldDevelopment,16(9):1025-1034
    Barrett C B.1999. Food security and food assistance programs. Handbook of Agricultural Economics,(4):40
    Brown L R.1995. Who will feed China: wake-up call for a small planet. World Watch Institute. pp160
    Cao SX, Li C, Yu XX.2009. Impact of China’s Grain for Green Project on the landscape of vulnerable aridand semi-arid agricultural regions: a case study in northern Shaanxi Province. Journal of AppliedEcology,(46):536~543.
    Chatterjee S, A Rae, R Ray.2007. Food Consumption and Calorie Intake in Contemporary India. sourceavailable: http://www.eSocialSciences.com/data/articles/Document13092007190.1743128.doc
    Chen J F, SQ Wei, K T Chang, B W Tsai.2007. A comparative case study of cultivated land changes inFujian and Taiwan. Land Use Policy,24:386-395
    FAO.1975. State of Food and Agriculture,,p.76.
    FAO.1998. FAO Production Year Book. Vo1.52
    FAO.2007. The state of food and agriculture: Paying farmers for environmental services, FAO, Rome, Italy
    FAO.2008a. Food Outlook: Global Market Analysis. Rome, Italy
    FAO.2008b. Price surges in food markets. Rome, Italy
    FAO.2008c. The state of food and agriculture: World food and agriculture revise. Rome, Italy
    FAO.2008d. The State of Food Insecurity in the World: High food prices and food security. Rome, Italy
    FAO.2008e. Web available: http://www. fao/org/nr/water/aquastat/
    FAO.2009a. The State of Food Insecurity in the World. Rome, Italy
    FAO.2009b. The State of Food Insecurity in the World: Towards eliminating hunger. Rome, Italy
    FAO.2009c. Web available: http://www. un. org/esa/population/
    Goudriaan J, vanlaar HH.1994. Modelling potential crop growth processed. Kluwer Academic Publishers,the Netherlands32.
    Huang JK, C Pray, S Rozelle.2002. Enhancing the crops to feed the poor. Nature,418:678-684
    Kendall A, Olson CM, Frongillo EA.1996. Relationship of hunger and foodinsecurity to food availabilityand consumption. J Am Diet Assoc,(96):1019-1024.
    Lin Z, Shu Y C, Sheng K C.2008. Arable land requirements based on food consumption patterns: Casestudy in rural Guyuan District, Western China. Ecological economics,10:1-16
    Oh SY, Hong M J.2003. Food insecurity is associated with dietary intake and body size of Korean childrenfrom low-income families in urban areas. Eur J Clin Nutr57(12),1598-1604
    Rose D, Oliveira V.1997. Nutrient intakes of individuals from food-insufficienthouseholds in the UnitedStates. Am J Pub Health,(87):1856-1861.
    Tollenaar M.1986. Seeking the upper limit of corn production.Batter Crops,(6):6-8.
    USDA.2007. Center for Nutrition Policy and Promotion. source available: http://www.cnpp.usda.gov/Publications/FoodPlans/2007/CostofFoodDec07.Pdf,/2002-08/27/content_540153.htm
    Webb P, Coates J, Frongillo E A, Rogers B L, Swindale A, Bilinsky P.2006. Measuring household foodinsecurity: Why it's so important and yet so difficult to do. J Nutr136(5),1404-1408

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