基于改进OII的湿地土壤有机质高光谱反演  

Retrieval of Wetland Soil Organic Matter Contents from Hyper-spectra Based on Modify OII

作　　者：高灯州 陈桂香[1] 章文龙[1,2] 颜燕燕[1] 曾从盛[3,2] 

机构地区：[1]福建师范大学地理科学学院,福建福州350007 [2]福建师范大学亚热带湿地研究中心,福建福州350007 [3]福建师范大学湿润亚热带生态地理过程教育部重点实验室,福建福州350007

出　　处：《实验室研究与探索》2014年第6期19-24,共6页Research and Exploration In Laboratory

基　　金：国家基础科学人才培养基金(J1210067)

摘　　要：以闽江口鳝鱼滩湿地为研究区,采集区内41个表层土样,运用敏感波段(SB)、有机质诊断指数(OII)和改进有机质诊断指数(MOII)建立2 mm(D1)和0.149 mm(D2)筛土样的有机质反演模型。结果表明,不同方法建立的有机质反演模型均通过P<0.01显著水平检验,MOII建立的模型明显优于SB和OII所建立的模型。此外,对不同反演模型,基于D2反射光谱建立的模型优于D1。基于D2反射光谱和MOII建立的模型最佳(R2=0.697,RMSE=0.707),可为湿地土壤有机质含量的快速测定提供新途径。The achievement of the retrieval of soil has important theoretical and practical significance organic matter content which is based on hyper-speetra instruments in protecting and restoring wetlands ecosystem. The essay takes the results show that all of the soil organic prediction model established by different methods are signifieanl at the P 〈 0.01 level, model by MOⅡ is superior lo SB and Oli. In addition, according to the different retrieval model, D, refleclance model is hetter than lhe D1. The refleetanee model hased on D2 reflectance and MOll is best（R2 = 0. 697, RMSE = 0. 707） , and it can provide a new approach to determinale Wetlands＇ soil organic matter eonlenl quickly.

关 键 词：高光谱 土壤有机质 有机质诊断指数 湿地 及演模型 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]