本文選題：糧食作物 + 結(jié)構(gòu)變動�。� 參考：《農(nóng)業(yè)技術(shù)經(jīng)濟》2016年08期

【摘要】：本文運用Shift-Share模型對長江中游四省的糧食作物結(jié)構(gòu)內(nèi)部優(yōu)勢與競爭力進行了比較,以分析糧食連年豐收背景下作物內(nèi)部增長的結(jié)構(gòu)與競爭差異。研究結(jié)果表明:長江中游水稻不具備結(jié)構(gòu)性優(yōu)勢與競爭優(yōu)勢;小麥同時具有結(jié)構(gòu)性優(yōu)勢和競爭優(yōu)勢;玉米具有結(jié)構(gòu)性優(yōu)勢但是缺乏競爭優(yōu)勢;豆類、薯類無結(jié)構(gòu)性優(yōu)勢,但是豆類由于單產(chǎn)水平提高表現(xiàn)出一定的競爭優(yōu)勢。從農(nóng)作物內(nèi)部結(jié)構(gòu)看,2004年以來長江中游糧食作物播種面積基本保持在農(nóng)作物總播種面積約62%的比例。其中四省水稻播種面積基本保持穩(wěn)定,擴張空間有限;安徽和湖北小麥有較大幅度增長;除江西外其他三省玉米均呈現(xiàn)出上漲趨勢。長江中游作為糧食主產(chǎn)區(qū)的重要組成部分,應(yīng)當發(fā)揮自身資源與環(huán)境優(yōu)勢,從結(jié)構(gòu)與競爭力出發(fā),調(diào)整水稻生產(chǎn)品種結(jié)構(gòu)、提高品質(zhì),積極支持安徽和湖北北部小麥生產(chǎn),克服玉米生產(chǎn)限制性因子、提高單產(chǎn)水平,以進一步發(fā)揮區(qū)域作物結(jié)構(gòu)優(yōu)勢,增加競爭優(yōu)勢。
[Abstract]:In this paper, Shift-Share model was used to compare the internal advantages and competitiveness of grain crop structure in four provinces in the middle reaches of the Yangtze River, in order to analyze the structure and competition difference of crop growth under the background of harvest in successive years. The results show that rice in the middle reaches of the Yangtze River has no structural advantage and competitive advantage; wheat has both structural advantage and competitive advantage; maize has structural advantage but lacks competitive advantage; beans and potato have no structural advantage; However, beans show a certain competitive advantage because of the improvement of unit yield level. According to the internal structure of crops, the planting area of grain crops in the middle reaches of the Yangtze River has been kept at about 62% of the total planting area since 2004. The sown area of rice in four provinces remained stable and the expansion space was limited; wheat in Anhui and Hubei increased by a large margin; and maize in the other three provinces except Jiangxi showed an upward trend. As an important part of the main grain producing areas, the middle reaches of the Yangtze River should give play to its own advantages of resources and environment, start from the structure and competitiveness, adjust the structure of rice varieties, improve the quality, and actively support wheat production in Anhui and northern Hubei. The limiting factors of maize production should be overcome and the yield level should be improved in order to give full play to the advantages of regional crop structure and increase the competitive advantage.
【作者單位】： 華中農(nóng)業(yè)大學(xué)經(jīng)濟管理學(xué)院;華中農(nóng)業(yè)大學(xué)公共管理學(xué)院;
【基金】：中央高校基本科研業(yè)務(wù)費專項基金資助項目(編號:2662016PY060) 國家自然科學(xué)基金項目“不同農(nóng)業(yè)耕作系統(tǒng)主要糧食作物產(chǎn)量限制性因子評估與重要限制因子作用規(guī)律研究”(編號:71203073);國家自然科學(xué)基金項目“經(jīng)濟社會雙重轉(zhuǎn)型下土地轉(zhuǎn)換效率測度及效率改進政策調(diào)控原理研究”(編號:71573101)
【分類號】：F326.11
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本文編號：1956809