基于可见光光谱分析的土壤参数分析OA北大核心CSCDCSTPCD
Evaluating soil parameters with visible spectroscopy
利用光谱分析技术,进行了农田原始状态土壤样品的可见光光谱与土壤参数之间的相关、回归分析.土壤样品采集于一块水分较低的玉米地和一块水分较高的牧草地,所分析的土壤参数有土壤水分、土壤有机质含量、土壤硝态氮含量、土壤电导率以及土壤pH值,土样的可见光光谱由精密分光光度计测量.分析结果显示,有效的光谱特性值为反射光谱的一次微分,所有5个土壤参数都可以利用土样的可见光光谱特性进行分析和检测.对于土壤水分、土壤有机质含量、土壤电导率以及土壤pH值,线性模型是…查看全部>>
Using spectroscopic techniques, correlation analysis and regression were conducted between soil parameters and visible reflectance spectra of raw soil samples. The samples were collected in a cornfield with lower moisture content and a forage field with higher moisture content. Five soil parameters, soil moisture, SOM, NO3-N, EC and pH, were analyzed by conventional method in a laboratory. Visible reflectance spectra of the samples were measured by a s…查看全部>>
李民赞
现代精细农业系统集成研究教育部重点实验室,中国农业大学,北京,100083
机械制造
精细农业土壤参数检测可见光反射率光谱学
precision agriculturesoil parameters sensingvisible reflectancespectroscopy
《农业工程学报》 2003 (5)
36-41,6
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