摘要
作物的产量和经济效益由多种因素综合影响,土地是其最重要的物质生产资料,系统评价土地适宜性等级和空间分布特征有利于优化作物耕作方式以及对土地的规划和针对性管理提供借鉴和参考。以湛江农垦集团东方红农场四队和五队为研究区域,进行剑麻种植土地适宜性评价,构建土地适宜性评价指标体系,包括立地条件、土壤质量和管理水平,基于GIS栅格加权叠加分析,得到研究区域土地适宜性等级和空间分布情况。结果分析得出,从数量上,研究区域总面积为9889.37亩,其中,高度适宜为4039.70亩,中度适宜为2632.69亩,临界适宜为2238.90亩,不适宜为978.06亩,分别占总面积的40.85%,26.62%,22.64%,9.89%。从空间上,适宜程度从东南依次向西北方向递减。影响剑麻种植适宜性的主要因素为排涝能力和交通便捷度,其他因素还包括坡度和种植环境的干扰情况等。建议进一步加强日常耕作管理,优化调整作物布局,加强田间基础设施规划建设。
The yield and economic benefits of crops are affected by a variety of factors.Land is its most important means of material production.Systematic evaluation of land suitability grades and spatial distribution characteristics are conducive to optimizing crop farming methods and providing reference for land planning and targeted management.Taking the fourth and fifth teams of Dongfanghong Farm of Zhanjiang Agricultural Reclamation Group as the study area,the land suitability evaluation index system is constructed,including site conditions,soil quality and management level.Based on the GIS grid weighted overlay analysis,the land suitability grade and spatial distribution are obtained.The result analysis shows that in terms of quantity,the total area of the study area is 9,889.37 acres,of which the number of highly suitable,moderately suitable,critical suitable and unsuitable area is 4,039.70 acres,2,632.69 acres,2,238.90 acres and 978.06 acres,respectively accounting for 40.85%,26.62%,22.64%,9.89%of the total area.In terms of space,the suitability decreases from southeast to northwest.The main factors affecting the suitability of sisal planting are the drainage capacity and the convenience of transportation,and other factors include the slope and the interference of the planting environment.It is recommended that daily farming management should be further strengthened,crop layout should be optimized and adjusted,and field infrastructure planning and construction should be strengthened.
作者
凌志平
黄业建
LING Zhiping;HUANG Yejian(Guangdong Guangqian Sugar Development Co.,Ltd.Zhanjiang 524022,China;Guangdong Zhanjiang Agricultural Reclamation Group,Zhanjiang 524022,China)
出处
《广东农工商职业技术学院学报》
2020年第3期11-14,共4页
Journal of Guangdong Agriculture Industry Business Polytechnic
关键词
土地适宜性
层次分析法
综合评价
land suitability
analytic hierarchy process(AHP)
comprehensive evaluation
