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Land suitability evaluation for sorghum crop by using GIS and AHP techniques in Agamsa sub-watershed, Ethiopia

机译：利用GIS和AHP技术在Agamsa子流域，埃塞俄比亚的土地适用性评价

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摘要

Land suitability analysis is one of the most beneficial applications in planning and managing land recourses. The main objective of this study was to assess suitable areas for sorghum (Sorghum bicolor L. Moench ) cultivation in Agamsa sub watershed, Northeastern Ethiopia by integrating an Analytical Hierarchy Process (AHP) methods with Geographic Information System (GIS). Soil, climate and topographic characteristics were considered for suitability assessments in the study. The potential land suitability results showed that 116.65?ha (28.58%) and 291.47?ha (71.42%), of the area is highly suitable and moderately suitable for sorghum crop production respectively. The study has shown that the area is the potential for producing sorghum crops. However, it should be noted that the combined use of organic and inorganic fertilizers, appropriate tillage management coupled with soil and water conservation measures should be taken into consideration to enhance the current land suitability of the study area and improve the yield of the selected crop. The soil map for land suitability designed in this study could be helpful in management decisions. However, the criteria considered for land suitability evaluation were mainly biophysical and, hence, further studies can be made by incorporating socio-economic variables to improve the suitability results of the study area.
机译：土地适用性分析是规划和管理土地资源中最有益的应用之一。本研究的主要目的是通过将分析层次方法（AHP）方法与地理信息系统（GIS）进行整合，评估Agamsa Sub流域的高粱（第I>高粱Bicolor L. Moench）培养的合适区域。在研究中考虑了土壤，气候和地形特征。潜在的土地适用性结果表明，116.65？HA（28.58％）和291.47？HA（71.42％），该地区的高度合适且适用于高粱作物产量。该研究表明该地区是生产高粱作物的可能性。然而，应该指出的是，应考虑到有机和无机肥料，加上水土保持措施的适当耕作管理，以提高研究区目前的土地适用性，提高所选作物的产量。该研究中设计的土地适用性的土壤图可能有助于管理决策。然而，考虑用于土地适用性评估的标准主要是生物物理，因此可以通过纳入社会经济变量来提高研究区域的适用性结果来进行进一步的研究。

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