【摘要】：人類社會的生存、繁衍和發(fā)展是建立在對物質(zhì)資料的占有這一重要基礎(chǔ)之上的。我國迅速推進(jìn)的工業(yè)化、城市化,使得農(nóng)業(yè)用地向非農(nóng)業(yè)用地轉(zhuǎn)變的速度加快,農(nóng)業(yè)人口向非農(nóng)業(yè)人口轉(zhuǎn)變的速度也在加快,糧食生產(chǎn)的空間布局、種植結(jié)構(gòu)及產(chǎn)量結(jié)構(gòu)都發(fā)生了很大的變化。同時在城市化進(jìn)程中,由于人類活動的盲目性,導(dǎo)致土地退化、土壤污染及水污染等問題突出,嚴(yán)重制約了我國的糧食生產(chǎn)。盡管近年來我國人口自然增長率降至4. 6‰左右,但是由于人口基數(shù)大,每年仍以600萬左右的數(shù)量增加。多年來我國以不到世界8%的耕地養(yǎng)活了超過世界20%的人口。但是,工業(yè)化和城市化的發(fā)展,加大了實(shí)現(xiàn)這一目標(biāo)的困難程度。糧食安全是發(fā)展經(jīng)濟(jì)的最根本保障。因此要實(shí)現(xiàn)經(jīng)濟(jì)的平穩(wěn)健康運(yùn)行,就必須加強(qiáng)對糧食相關(guān)問題的研究。湖北省耕地集中,勞動力豐富,自古就是我國的農(nóng)業(yè)大省。作為13個主產(chǎn)糧食中心之一,在保障糧食供給方面發(fā)揮著重要的作用。由于工業(yè)化和城市化的進(jìn)程加快,人地矛盾越來越突出,城市化率以每年1%的速度在擴(kuò)展,人口以每年4. 9‰的自然增長率在增加,而耕地面積總體逐年減少。影響糧食生產(chǎn)的自然資源要素和社會經(jīng)濟(jì)要素也發(fā)生了變化,因此加強(qiáng)對湖北省糧食產(chǎn)量時空格局演變的研究,不僅對優(yōu)化省內(nèi)農(nóng)業(yè)資源的配置,提高糧食總產(chǎn)量具有重要的指導(dǎo)意義,而且在穩(wěn)定我國糧食供給,保障糧食安全等方面發(fā)揮著重要的戰(zhàn)略作用。全文由七個部分組成:第一部分,緒論。從研究課題的背景、意義以及國內(nèi)外關(guān)于糧食問題的研究現(xiàn)狀等方面進(jìn)行研究。通過對比本篇論文和前人論文的特點(diǎn),總結(jié)本文的特色和創(chuàng)新之處。第二部分,理論與方法。首先是對“糧食”及“糧食安全”等基本概念的界定;其次介紹了用于支撐本文的理論基礎(chǔ),包括農(nóng)業(yè)區(qū)位論、可持續(xù)發(fā)展理論和地域分工理論三大理論;最后對研究方法進(jìn)行詳細(xì)的介紹。第三部分,研究區(qū)概況。主要介紹湖北省的基本概況,包括所處的地理位置,東、西、南、北跨度,行政區(qū)劃等,以及湖北省糧食生產(chǎn)的條件分析。第四部分,湖北省糧食產(chǎn)量時空變化。分別從歷時變化及耕地利用效應(yīng)分析和空間變化及其空間特征等方面對湖北省糧食產(chǎn)量的時空變化進(jìn)行分析。第五部分,從城市化進(jìn)程、科技水平、自然災(zāi)害、國家政策、市等多個方面探討推動湖北省糧食產(chǎn)量變化的因素。第六部分,針對糧食產(chǎn)量變化的時空特征、變化原因,提出穩(wěn)定湖北省糧食產(chǎn)量的措施,涉及城市規(guī)劃、農(nóng)業(yè)投入、水利建設(shè)、政策傾斜、風(fēng)險管控等方面。第七部分,結(jié)論與探討。
[Abstract]:The survival, reproduction and development of human society are based on the possession of material data. With the rapid development of industrialization and urbanization in China, the speed of the transformation of agricultural land to non-agricultural land has been accelerated, and the speed of agricultural population to non-agricultural population has also been quickened. The spatial distribution of grain production has also been accelerated. The planting structure and yield structure have changed greatly. At the same time, in the process of urbanization, the blindness of human activities leads to land degradation, soil pollution and water pollution, which seriously restricts the grain production in China. In recent years, though, the natural growth rate of our population has dropped to 4. 4%. About 6 per thousand, but due to the large population base, still increase by about 6 million a year. Over the years, China has fed more than 20% of the world's population with less than 8% of the world's arable land. However, the development of industrialization and urbanization has made it more difficult to achieve this goal. Food security is the most fundamental guarantee of economic development. Therefore, in order to realize the smooth and healthy operation of economy, we must strengthen the research on food-related problems. The cultivated land of Hubei Province is concentrated, the labor force is abundant, since ancient times is our country agriculture big province. As one of the 13 main food centers, it plays an important role in ensuring food supply. Due to the acceleration of industrialization and urbanization, the contradiction between man and land is becoming more and more prominent. The urbanization rate is expanding at an annual rate of 1%, and the population is 4. 5% per year. The natural growth rate of 9 鈥，

本文編號：2330209