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首页> 外文期刊>International journal of soil science >Evaluation of Qualitative, Quantitative and Economical Land Suitability for Major Crops in Dezful Region
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Evaluation of Qualitative, Quantitative and Economical Land Suitability for Major Crops in Dezful Region

机译：Dezful地区主要农作物的定性，定量和经济土地适宜性评价

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摘要

The aim of this study is the qualitative, quantitative and economic land suitability evaluation of wheat, barley, maize and rapeseed crops in Dezful region. The steps of this study include field study, laboratory examination and land evaluation methods. In quantitative evaluation, climatic characteristics, topography and soil characteristic of each plant compared with crop requirements and quantitative suitability classes determine by simple limitation and parametric methods. In qualitative evaluation, rate of yield in a unit of area and in economic evaluation, rate of gross margin in a unit of area, calculated results of quantitative evaluation as show in study area and crops cultivation because of climatic limitations were relatively stable. In addition of climatic limitation, soil salinity and drainage limitations were presence in part of land for growth of the crops. The results of quantitative evaluation show that the suitability class of land units, as compared as qualitative suitability classes, was sane or upper that can be caused as improved managements in farms. Results of economic evaluation shows that the most of land units for two utilization types of barley and rapeseed was Si class and for two utilization types of wheat and maize, was S2 and S3 classes. Barley cultivation is more beneficial as compared with other crops.
机译：这项研究的目的是对Dezful地区的小麦，大麦，玉米和油菜籽作物进行定性，定量和经济的土地适宜性评估。这项研究的步骤包括实地研究，实验室检查和土地评估方法。在定量评估中，通过简单的限制和参数方法确定每种植物的气候特征，地形和土壤特征，以及作物需求和定量适宜性等级。在定性评价中，单位面积的产量率和经济评价中，单位面积的毛利率，定量研究的计算结果显示在研究区和作物种植中，这是由于气候限制而相对稳定的。除气候限制外，在部分土地上还存在土壤盐分和排水限制，以供农作物生长。定量评估的结果表明，与定性的适宜性等级相比，土地单位的适宜性等级是合理的或较高的，这可能是由于农场管理水平的提高而引起的。经济评估结果表明，大麦和油菜两种利用类型的土地单位最多为Si类，而小麦和玉米两种利用类型的土地单位最多为S2和S3类。与其他农作物相比，大麦栽培更为有利。

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