摘要
针对土壤数据信息量庞大、评价过程复杂的问题,设计土壤空间分布及质量评价系统。系统基于.NET平台,使用C/S架构模式及C#语言,采用改进的基于内梅罗综合污染指数的加权综合污染指数法(N-PI),运用ArcGIS Engine组件实现二次开发,利用克里金插值法(Kriging)生成土壤因子空间分布图,并实现插值分析、土壤质量评价等功能。以宁夏14个市县共142个土壤采样点数据对系统进行实例验证,系统运行稳定,计算结果精确,实现为区域农业生产和决策提供直接有效的支持,为采用地理信息技术研究土壤质量评价工作提供参考和借鉴。
In view of the large amount of soil data information and the complex evaluation process,a soil spatial distribution and soil quality evaluation system is designed.In the system,C/S architecture mode and C#language are used,and the improved weighted comprehensive pollution index(N-PI)method based on internal ROM comprehensive pollution index is adopted,and ArcGIS Engine subassembly is used to realize the secondary development on the basis of the.NET platform;Kriging method is adopted to generate the spatial distribution map of soil factors,and implement the functions of interpolation analysis and soil quality evaluation.The data collected from 142 soil sampling points in 14 cities and counties in Ningxia are taken to verify the system.The results indicate that operation of the system is stable and the calculation results are accurate.The implementation of the system can provide direct and effective support for regional agricultural production and decision-making,and provide a reference for the study of soil quality evaluation using geographic information technology.
作者
杨亚芳
何杰
杨昊鑫
刘振沧
YANG Yafang;HE Jie;YANG Haoxin;LIU Zhencang(College of Resources and Environment,Ningxia University,Yinchuan 750001,China;Agricultural and Rural Bureau of Zhongwei County,Zhongwei 755000,China)
出处
《现代电子技术》
2021年第14期165-168,共4页
Modern Electronics Technique
基金
国家自然科学基金项目(42061062)
宁夏自然科学基金(NZ17029)
宁夏高等学校科研项目(NGY2017019)。
关键词
土壤因子分布
土壤质量评价
二次开发
插值分析
模型设计
实例验证
soil factor distribution
soil quality evaluation
secondary development
interpolation analysis
instance verification
