喀斯特地区土壤有机碳含量高光谱反演研究  

Hyperspectral Inversion of Soil Organic Carbon Content in Karst Areas

作　　者：黄秋怡 罗宇晖 张嘉欣 陈城 谢爽 吴梦娟 Huang Qiuyi;Luo Yuhui;Zhang Jiaxin;Chen Cheng;Xie Shuang;Wu Mengjuan(College of Geographical Science and Planning,Nanning Normal University,Nanning,China;International Joint Laboratory of Ecology&Remote Sensing,Nanning Normal University,Nanning,China;Key Laboratory of Environment Change and Resources Use in Beibu Gulf(Nanning Normal University),Ministry of Education,Nanning,China;Guangxi Key Laboratory of Earth Surface Processes and Intelligent Simulated(Nanning Normal University),Nanning,China)

机构地区：[1]南宁师范大学地理科学与规划学院,广西南宁 [2]南宁师范大学生态与遥感国际联合实验室,广西南宁 [3]南宁师范大学北部湾环境演变与资源利用教育部重点实验室,广西南宁 [4]南宁师范大学广西地表过程与智能模拟重点实验室,广西南宁

出　　处：《科学技术创新》2025年第3期11-14,共4页Scientific and Technological Innovation

基　　金：广西科技基地和人才专向项目“石漠化演替过程中土壤质量高光谱遥感监测”(桂科AD22035922);国家自然科学青年基金项目“基于多时相ASTER和地面高光谱实测数据的西南喀斯特地区碳酸盐岩理化性质反演研究”(42201420)。

摘　　要：土壤有机碳是陆地生态系统碳平衡的主要驱动因素。喀斯特地区的土壤有机碳分布具有空间异质性,目前基于喀斯特地区的土壤有机碳高光谱反演研究较少。本文以广西作为研究区,对光谱进行多种数学变换结合、提取敏感波段后构建有机碳反演模型。分析评价指标寻找最佳的土壤有机碳反演模型。研究结果表明,PLSR-R'模型的预测效果最佳。本研究旨在为喀斯特地区土壤有机碳含量的高光谱反演提供重要的科学依据。Soil organic carbon is the main driving factor for carbon balance in terrestrial ecosystems.The distribution of soil organic carbon in karst areas exhibits spatial heterogeneity,and there is currently limited research on hyperspectral inversion of soil organic carbon based on karst areas.This article takes Guangxi as the research area,combines various mathematical transformations of spectra,extracts sensitive bands,and constructs an organic carbon inversion model.Analyze and evaluate indicators to find the best soil organic carbon inversion model.The research results indicate that the PLSR-R'model has the best predictive performance.This study aims to provide important scientific basis for hyperspectral inversion of soil organic carbon content in karst areas.

关 键 词：喀斯特地区 土壤有机碳 高光谱反演 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]