地理空间信息2025，Vol.23Issue(4)：67-70,4.DOI:10.3969/j.issn.1672-4623.2025.04.014
珠海一号高光谱反演表层土壤有机质含量方法研究
Inversion of Farmland Soil Organic Matter Content by Hyperspectral Remote Sensing Images of Zhuhai-1
摘要
Abstract
Most hyperspectral inversion research of organic matter focus on small scale area.In order to demonstrate the validity and practicabili-ty of large scale simulation,taking Yichuan County at the northern foot of Funiu mountain as the study area,taking Zhuhai-1 hyperspectral satel-lites(OHS)and measured surface(0～20 cm)SOM content as the objects,we used multiple stepwise regression,partial least squares and random forest methods to invert county SOM content from OHS data.The results show that the random forest inversion model has a high degree of fit(R2=0.68),RMSE is 1.89.The inversion of organic matter with OHS data can quickly grasp the spatial distribution of organic matter in the moni-toring area,and provide a basis and reference for hyperspectral large-scale inversion of organic matter research.关键词
高光谱/有机质/土壤反演/珠海一号Key words
hyperspectral/organic matter/soil inversion/Zhuhai-1分类
天文与地球科学引用本文复制引用
赵俊,杜文涛,李新萍,王智枭,孟成真,张启超,张辉,孙子文,张惠怡..珠海一号高光谱反演表层土壤有机质含量方法研究[J].地理空间信息,2025,23(4):67-70,4.基金项目
河南省自然资源厅2021年科技项目(豫自然资函[2021]157号). （豫自然资函[2021]157号）
