【摘要】：針對耕地資源分布不均、可利用地急劇缺乏等問題,研究了耕地生產(chǎn)潛力估算方法,有效地管理耕地資源,獲取農(nóng)情狀況監(jiān)測信息。以陜西省耕地區(qū)域為研究對象,利用10年(2003—2012年)的遙感、氣象、土壤性狀和基礎地理數(shù)據(jù),基于改進的"機制法"模型結合作物生長動態(tài),實現(xiàn)了陜西省耕地生產(chǎn)潛力的估算。陜西省耕地生產(chǎn)潛力值的總體空間分布為北山陜北黃土高原關中及以南區(qū)域,10年間潛力值總量均大于6 000萬噸,年際間變化幅度趨于水平。利用2011年統(tǒng)計的各市單位面積產(chǎn)量數(shù)據(jù)與估算的耕地生產(chǎn)潛力結果對比分析,其分析結果符合線性關系,R~2為0.695 5。研究結果表明,所提出的估算方法可以很好地應用于陜西省耕地生產(chǎn)潛力的估算,并為農(nóng)情監(jiān)測提供數(shù)據(jù)支撐。
[Abstract]:In order to solve the problems of uneven distribution of cultivated land resources and sharp shortage of available land, this paper studies the estimation method of cultivated land productive potential, effectively manages cultivated land resources and obtains the monitoring information of agricultural situation. Taking the cultivated land area of Shaanxi Province as the research object, using the remote sensing, meteorology, soil properties and basic geographical data of 10 years (2003-2012), based on the improved "mechanism method" model combined with crop growth dynamics, the estimation of cultivated land production potential in Shaanxi Province was realized. The overall spatial distribution of cultivated land production potential in Shaanxi Province is in the middle and south of Guanzhong and south of North Shaanxi Loess Plateau. In the past 10 years, the total potential value is more than 60 million tons, and the range of interannual variation tends to be horizontal. Using the yield data per unit area of each city in 2011 and the estimated cultivated land production potential, the analysis results are in good agreement with the linear relationship, R 鈮，

本文編號：2515756