本文選題：耕地資源 + 糧食生產(chǎn)��； 參考：《中國科學(xué)院研究生院（東北地理與農(nóng)業(yè)生態(tài)研究所）》2015年碩士論文

【摘要】：耕地資源作為人類賴以生存和發(fā)展的基礎(chǔ),承載著人類活動和糧食的生產(chǎn),也是保障糧食安全的重要條件。三江平原擁有廣闊的耕地資源和良好的自然條件,是我國重要的商品糧生產(chǎn)基地,在維持黑龍江省糧食產(chǎn)量供應(yīng),保障我國糧食安全中具有重要的地位。本文探究耕地資源的變化對糧食生產(chǎn)的影響效應(yīng),目的在于在多數(shù)縣市出現(xiàn)耕地面積減小的背景下,掌握耕地資源變化對糧食生產(chǎn)的影響,為保障三江平原糧食生產(chǎn)提供依據(jù)。文章的主要內(nèi)容包括以下幾個方面:1、三江平原耕地資源變化特征分析。從耕地資源時序變化、空間格局、轉(zhuǎn)移特征等角度分析了27年間耕地資源的變化態(tài)勢。三江平原耕地資源豐富,增加幅度與速度呈下降趨勢,與其他土地利用類型之間不斷轉(zhuǎn)化,但整體數(shù)量依然不斷增加,為三江平原糧食生產(chǎn)提供了保障;耕地資源空間集聚特征明顯,在三江平原東北部縣域不斷的開發(fā)、集中,形成了耕地資源的空間格局,決定了三江平原糧食生產(chǎn)的集中區(qū)域。2、三江平原糧食生產(chǎn)分析。分析三江平原糧食總產(chǎn)、單產(chǎn)、人均糧食占有量的變化態(tài)勢,及其在黑龍江省糧食生產(chǎn)中的地位。結(jié)果表明,三江平原逐漸形成了以大豆、玉米、水稻為主的糧食生產(chǎn)格局,并在東北部縣域形成了糧食生產(chǎn)的空間格局;糧食相對承載了不斷提升,形成了“東北強(qiáng)西南弱”的承載力格局,三江平原在黑龍江省糧食供應(yīng)中的地位不斷加強(qiáng),在保障糧食安全中的地位愈加明顯。3、耕地資源變化對糧食生產(chǎn)的影響分析。從重心耦合、相關(guān)性分析、糧食生產(chǎn)影響因素分析模型三個方面分析了耕地資源面積變化與糧食生產(chǎn)之間的關(guān)系,表明兩者之間存在一定的相關(guān)性,耕地面積的變化影響著糧食產(chǎn)量的增加、糧食空間的分布,尤其是在耕地面積減小的縣域,開始對糧食生產(chǎn)產(chǎn)生負(fù)向效應(yīng);利用C-D函數(shù)、因素貢獻(xiàn)率分析方法,探究了耕地追加利用質(zhì)量對糧食單產(chǎn)的影響;總體上,應(yīng)加強(qiáng)復(fù)種指數(shù)、糧作比、糧食單產(chǎn)對糧食生產(chǎn)的影響效應(yīng),并從提升耕地資源追加利用質(zhì)量的角度,強(qiáng)化復(fù)種指數(shù)、糧作比、耕地質(zhì)量糧食生產(chǎn)的貢獻(xiàn)率,從而彌補(bǔ)耕地面積的減小帶來的負(fù)向效應(yīng)。
[Abstract]:As the basis of human survival and development, cultivated land resources bear human activities and food production, and are also important conditions for ensuring food security. Sanjiang Plain, with its vast cultivated land resources and good natural conditions, is an important commodity grain production base in China, which plays an important role in maintaining the supply of grain production in Heilongjiang Province and ensuring the food security of our country. This paper probes into the effect of the change of cultivated land resources on grain production. The purpose of this study is to grasp the influence of the change of cultivated land resources on grain production under the background of decreasing cultivated land area in most counties and cities so as to provide the basis for ensuring grain production in Sanjiang Plain. The main contents of this paper include the following aspects: 1, Sanjiang Plain cultivated land resources change characteristics. This paper analyzes the change situation of cultivated land resources in 27 years from the angle of time series, spatial pattern and transfer characteristics of cultivated land resources. The cultivated land resources in Sanjiang Plain are abundant, the increase range and speed show a downward trend, and the transformation between Sanjiang Plain and other land use types, but the overall quantity is still increasing, which provides a guarantee for grain production in Sanjiang Plain. The spatial agglomeration of cultivated land resources is obvious, and the development and concentration of cultivated land resources in the northeast counties of Sanjiang Plain form the spatial pattern of cultivated land resources, which determines the concentration area of grain production in Sanjiang Plain, and the analysis of grain production in Sanjiang Plain. This paper analyzes the change situation of total grain yield, per unit yield and per capita grain possession in Sanjiang Plain, and its position in Heilongjiang Province grain production. The results showed that the grain production pattern was gradually formed in Sanjiang Plain, which was dominated by soybean, corn and rice, and the spatial pattern of grain production was formed in the northeast county area. The carrying capacity pattern of "strong southwest and weak northeast" has been formed. The status of Sanjiang Plain in the grain supply of Heilongjiang Province has been strengthened constantly, and the position in ensuring food security has become more and more obvious. The influence of the change of cultivated land resources on grain production is analyzed. The relationship between cultivated land area change and grain production is analyzed from three aspects: barycenter coupling, correlation analysis and grain production influencing factor analysis model, which indicates that there is a certain correlation between them. The change of cultivated land area affects the increase of grain yield, the distribution of grain space, especially in the county where the cultivated land area decreases, begins to produce a negative effect on grain production. This paper probes into the effect of the quality of additional utilization of cultivated land on grain yield, and on the whole, should strengthen the effect of multiple cropping index, grain yield ratio and grain yield on grain production, and strengthen the multiple cropping index from the angle of improving the quality of additional utilization of cultivated land resources. The ratio of grain to crop, the contribution rate of cultivated land quality grain production, thus makes up for the negative effect brought by the decrease of cultivated land area.
【學(xué)位授予單位】：中國科學(xué)院研究生院（東北地理與農(nóng)業(yè)生態(tài)研究所）
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：F323.211;F326.11

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相關(guān)期刊論文 前1條

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本文編號：2077842