基于无人机多光谱影像的海口市美舍河凤翔湿地公园水体叶绿素反演  

Inversion of Chlorophyll of Water of Fengxiang Wetland Park on Meishe River in Haikou Based on UAV Multispectral Imagery

作　　者：潘小艳 张乐 李苑菱 雷金睿 陈宗铸 陈小花 PAN Xiaoyan;ZHANG Le;LI Yuanling;LEI Jinrui;CHEN Zongzhu;CHEN Xiaohua(Hainan Academy of Forestry(Hainan Academy of Mangrove),Haikou,Hainan 571100,China;Haikou Wetland Protection Engineering Technology Research and Development Center,Haikou,Hainan 571100,China;College of Forestry,Hainan University,Haikou,Hainan 570228,China)

机构地区：[1]海南省林业科学研究院(海南省红树林研究院),海南海口571100 [2]海口市湿地保护工程技术研究开发中心,海南海口571100 [3]海南大学林学院,海南海口570028

出　　处：《热带农业科学》2023年第2期103-109,共7页Chinese Journal of Tropical Agriculture

基　　金：基于无人机多光谱遥感的海南省重要湿地水质参数反演与监测评价(No.jscx202024)。

摘　　要：为掌握海口市美舍河凤翔湿地公园水体中的叶绿素(CHL)空间分布,科学评估区域水体水质情况。使用无人机搭载多光谱传感器获取多光谱影像,从中提取16个光谱参数(V1~V16),结合实测水体样本数据,构建CHL叶绿体的反演模型。结果显示:光谱参数V3与CHL具有明显的相关性,在建立的反演模型中,指数函数反演模型的精度最高,决定系数R^(2)值为0.660。经检验,指数函数模型的估测值和实测值的拟合曲线R^(2)值为0.8709。研究结果符合水质参素反演精度要求,可为下一步绘制水质参数空间分布图及美舍河凤翔湿地公园的水体治理提供科学依据。To grasp the spatial distribution of chlorophyll(CHL)in the water of Fengxiang Wetland Park on Meishe River in Haikou and scientifically evaluate the regional water environment.This study used an Unmanned Aircraft Vehicle with a multi-spectral sensor to acquire multi-spectral images,from which 16(V1~V16)spectral parameters were extracted and combined with actual measures of water sample data to construct inversion models of CHL.The results show that the spectral parameter V3 is highly correlated with CHL.Among the established models,the exponential function inversion model has the highest precision,and the determination coefficient R^(2)is 0.660.After the test,the determination coefficients R^(2)of the estimated and measured values of linear fitting curves of the exponential function model is 0.8709.The results meet the precision requirements of water quality parameter inversion and can provide a scientific basis for mapping the spatial distribution of parameters and water management in the Meishe River Fengxiang Wetland Park.

关 键 词：美舍河凤翔湿地公园 叶绿素(CHL)空间分布 多光谱影像 反演模型 

分 类 号：X52[环境科学与工程—环境工程]