陕西省耕地生产潜力估算
发布时间：2019-07-18 08:25
【摘要】：针对耕地资源分布不均、可利用地急剧缺乏等问题,研究了耕地生产潜力估算方法,有效地管理耕地资源,获取农情状况监测信息。以陕西省耕地区域为研究对象,利用10年(2003—2012年)的遥感、气象、土壤性状和基础地理数据,基于改进的"机制法"模型结合作物生长动态,实现了陕西省耕地生产潜力的估算。陕西省耕地生产潜力值的总体空间分布为北山陕北黄土高原关中及以南区域,10年间潜力值总量均大于6 000万吨,年际间变化幅度趋于水平。利用2011年统计的各市单位面积产量数据与估算的耕地生产潜力结果对比分析,其分析结果符合线性关系,R~2为0.695 5。研究结果表明,所提出的估算方法可以很好地应用于陕西省耕地生产潜力的估算,并为农情监测提供数据支撑。
[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，
本文编号：2515756
[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，
本文编号：2515756
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