本文選題：土地整治 + 適宜性�。� 參考：《成都理工大學(xué)》2015年碩士論文

【摘要】：我國是個農(nóng)業(yè)大國,但人多地少的矛盾日益突出,在有限的耕地使用面積上,需要合理利用資源、發(fā)展高效農(nóng)業(yè)。農(nóng)業(yè)發(fā)展的關(guān)鍵是科學(xué)種植作物,作物生長的好壞依賴于土地的宜耕性。土地的宜耕性決定了土壤的耕作措施、時間和質(zhì)量,通過對耕地的宜耕性分析,指出影響耕作的限制性因素,從而有針對性地采取土地整治措施,改善耕作條件,提高耕作的質(zhì)量和效益。本文以喜德縣紅莫鎮(zhèn)土地整治項目為研究內(nèi)容,選取研究區(qū)內(nèi)具代表性的三種地類(水田、旱地和宜耕未利用地)為重點研究對象,分別對其在土地整理前和土地整理后的宜耕性進(jìn)行分析、對比、評價,目的是了解耕地在土地整理前后的差異性。深入分析研究區(qū)域的自然環(huán)境條件和社會環(huán)境條件,根據(jù)區(qū)域特點選取灌溉保證度、排水條件、土壤侵蝕程度、土壤有機(jī)質(zhì)含量、地表巖石露頭度、表層土壤質(zhì)地、土壤酸堿度、有效土層厚度、地形坡度、海拔高度、作物種植率、交通網(wǎng)連接度、水網(wǎng)密度指數(shù)、人口承載力和作物凈收益系數(shù)15個指標(biāo)作為參評因子。這15個指標(biāo)又被歸納為水分條件、土壤條件、耕作條件和社會條件4大要素。因子之間相互關(guān)聯(lián)、相互影響。采用層次分析法對要素層和因子層進(jìn)行權(quán)重值判定,建立宜耕性評價指標(biāo)體系。通過收集研究區(qū)土地整治前后的文獻(xiàn)資料、調(diào)查數(shù)據(jù)和遙感影像,提煉出耕地在土地整理前后的性質(zhì)指標(biāo)變化,代入宜耕性指標(biāo)體系進(jìn)行測算分析,最后得出結(jié)論:科學(xué)的土地整理對土地宜耕性程度有明顯的提高,評價體系對土地整治工作的開展提供一定的理論依據(jù),能從中分析出改善土地質(zhì)量的有效因素和影響耕種的限制性因素。
[Abstract]:China is a big agricultural country, but the contradiction between people and land is more and more serious. In the limited area of cultivated land, it is necessary to use resources reasonably and develop efficient agriculture. The key to the development of agriculture is to grow crops scientifically. The quality of crop growth depends on the cultivability of land. The suitable tillage property of land determines the tillage measure, time and quality of soil. Through the analysis of arable land suitability, the restrictive factors affecting tillage are pointed out, and land remediation measures are taken to improve tillage conditions. Improve the quality and efficiency of farming. This paper takes Hongmo Town Land Regulation Project in Xide County as the research content, and selects three representative land types (paddy field, dry land and unexploited land) as the main research object. The difference of arable land before and after land consolidation was analyzed, compared and evaluated. The natural and social conditions of the region are analyzed in depth. According to the regional characteristics, irrigation guarantee degree, drainage condition, soil erosion degree, soil organic matter content, outcrop degree of surface rock, texture of surface soil are selected. Soil pH, effective soil layer thickness, topographic slope, elevation, crop planting rate, traffic network connectivity, water network density index, population carrying capacity and crop net income coefficient were taken as the evaluation factors. These 15 indexes were classified into four main factors: water condition, soil condition, tillage condition and social condition. The factors are interrelated and influence each other. The weight of factor layer and factor layer was determined by AHP, and the evaluation index system of suitability for tillage was established. By collecting the literature, investigating data and remote sensing images before and after land renovation in the study area, the author abstracts the change of the property index of cultivated land before and after land consolidation, and then calculates and analyzes the index system of suitable tillage. Finally, it is concluded that scientific land consolidation can obviously improve the degree of land suitability, and the evaluation system can provide some theoretical basis for the development of land regulation. The effective factors to improve land quality and the restrictive factors affecting cultivation can be analyzed.
【學(xué)位授予單位】：成都理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：S151.9;F323.211

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