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基于耕地壓力指數(shù)的區(qū)域糧食安全狀況分析__畢業(yè)論文-全文預(yù)覽

  

【正文】 關(guān)的文獻(xiàn) ,因此本文將以吉泰盆地為例,運(yùn)用耕地壓力指數(shù)模型對(duì)該區(qū)域所承載的耕地壓力進(jìn)行分析,并建立預(yù)測(cè)模型,研究其對(duì)該區(qū)域乃至全省的糧食生產(chǎn)和糧食安全的意義,在此基礎(chǔ)上提出保證糧食安全、減輕耕地壓力的措施,希望對(duì)進(jìn)一步鞏固該區(qū)域農(nóng)業(yè)基礎(chǔ)地位,發(fā)展現(xiàn)代農(nóng)業(yè)、實(shí)現(xiàn)農(nóng)業(yè)經(jīng)濟(jì)的可持續(xù)發(fā)展具有較大的參考價(jià)值。近幾年來(lái),隨著人口的不斷增加,以及工業(yè)化、城市化的推進(jìn),根據(jù)調(diào)查,我國(guó)耕地每年都要減少幾百萬(wàn)甚至上千萬(wàn)畝,人地矛盾日益突出,因此學(xué)術(shù)界對(duì)各省市或區(qū)域的耕地壓力和糧食安全問(wèn)題做了大量研究。 聲明人(畢業(yè)設(shè)計(jì)(論文)作者)學(xué)號(hào): 聲明人(畢業(yè)設(shè)計(jì)(論文)作者)簽名: 簽名日期: 年 月 日 I 摘要 耕地是確保國(guó)家糧食安全的基礎(chǔ),江西省又是農(nóng)業(yè)大省,因此 本文以江西省第二大商品糧基地 —— 吉泰盆地為例,運(yùn)用回歸分析法、預(yù)測(cè)理論、最小人均耕地面積和耕地壓力指數(shù)模型,結(jié)合 Excel 軟件,在分析了 2020~2020 年該區(qū)域的耕地、人口、糧食動(dòng)態(tài)變化的基礎(chǔ)上,得出了最小人均耕地面積和耕地壓力指數(shù)的變化特點(diǎn),并對(duì)之后 15 年的耕地、人口、糧食、最小人均耕地面積和耕地壓力指數(shù)進(jìn)行了預(yù)測(cè)。對(duì)本文的研究做出重要貢獻(xiàn)的個(gè) 人和集體,均已在文中以明確的方式標(biāo)明。除文中已經(jīng)注明引用的內(nèi)容外,本論文不含任何其他個(gè)人或集體已經(jīng)發(fā)表或撰寫(xiě)過(guò)的作品或成果。 特此聲明。s second largest modity grain base jitai basin as an example, Using regression analysis method, forecasting theory, the minimum per capita cultivated land area and cultivated land pressure index model, bining with the Excel software, the analysis of the 2020 ~ 2020, the area of cultivated land, population, food, on the basis of dynamic change, the minimum per capita cultivated land area and cultivated land pressure index is obtained of the variation characteristics, and forecasted the after 15 years of cultivated land, population, grain, minimum per capita cultivated land area and cultivated land pressure index . Results show: jitai basin of arable land, less pressure, Smin and K values since 2020 showed a trend of decrease gradually, and it is less than 1, that in the future a period of time can meet the needs of agricultural production and development of normal, but only by increasing the investment of agricultural infrastructure and technological advances to improve farmland productivity, is to keep small cultivated land pressure and the basic way to guarantee food safety in production. Key Words Minimum cultivated land per capita Cultivated land pressure index Food safety Jitai basin III 目錄 摘要 .......................................................................... I Abstract ..................................................................... II 1 引言 ........................................................................ 1 2 研究對(duì)象 .................................................................... 1 糧食安全 ............................................................... 1 耕地 ................................................................... 1 耕地對(duì)糧食安全的影響 ................................................... 2 3 研究區(qū)概況 .................................................................. 2 自然概況 ............................................................... 2 經(jīng)濟(jì)社會(huì)概況 ........................................................... 2 4 研究方法與數(shù)據(jù)來(lái)源 .......................................................... 3 研究方法 ............................................................... 3 最小人均耕地面積 ................................................. 3 耕地壓力指數(shù) .................................................... 4 平滑預(yù)測(cè)法和回歸分析法 ........................................... 4 數(shù)據(jù)來(lái)源 ............................................................... 4 5 吉泰盆地耕地、人口、糧食、耕地壓力的動(dòng)態(tài)分析 ................................ 4 人口數(shù)量的動(dòng)態(tài)變化 ..................................................... 4 耕地資源的動(dòng)態(tài)變化 ..................................................... 4 耕地總面積的動(dòng)態(tài)變化 ............................................. 4 人均耕地面積的動(dòng)態(tài)變化 ........................................... 5 糧食產(chǎn)量的動(dòng)態(tài)變化 ..................................................... 6 糧食總產(chǎn)量變化 ................................................... 6 糧食單產(chǎn)變化 ..................................................... 6 人均糧食產(chǎn)量變化 ..............................................
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