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林业资源管理 ›› 2019›› Issue (2): 80-87.doi: 10.13466/j.cnki.lyzygl.2019.02.012

• 科学研究 • 上一篇    下一篇

基于无人机遥感的胡杨地上生物量估测模型构建

朱雅丽(), 张绘芳(), 张景路, 地力夏提·包尔汉   

  1. 新疆林业科学院 现代林业研究所,乌鲁木齐 830000
  • 收稿日期:2019-01-09 修回日期:2019-04-15 出版日期:2019-04-28 发布日期:2020-09-22
  • 通讯作者: 张绘芳
  • 作者简介:朱雅丽(1984-),女,河南周口人,助理研究员,硕士,主要从事森林资源监测及遥感技术应用方面的研究工作。Email: juyaly2002@aliyun.com
  • 基金资助:
    自治区公益性科研院所基本科研业务经费资助项目(KY2018057);自治区公益性科研院所基本科研业务经费资助项目(KY2018054)

Establishment of the Model for Estimating Aboveground Biomass of Populus euphratica Based on UAV Remote Sensing

ZHU Yali(), ZHANG Huifang(), ZHANG Jinglu, DI lixiati·Baoerhan   

  1. Research Institute of Modern Forestry,Xinjiang Academy of Forestry,Urumqi,Xinjiang 830000,China
  • Received:2019-01-09 Revised:2019-04-15 Online:2019-04-28 Published:2020-09-22
  • Contact: ZHANG Huifang

摘要:

为了构建胡杨冠幅及地上生物量估测模型,在胡杨分布区设置的样地中选取328株样木,以无人机遥感数据提取的胡杨冠幅为自变量,以胡杨生物量模型获取的地上鲜生物量为因变量,通过相关及回归分析方法,构建不同函数形式的估测模型并进行精度分析。结果显示,墨玉县、巴楚县、轮台县,以无人机遥感估测胡杨生物量的最优模型均为三次曲线函数形式,精度分别为94.93%,95.63%,92.24%。研究确定了处于不同林龄胡杨样地的地上生物量的最优估测模型。可见,运用无人机遥感估测生物量是可行的,可为胡杨林的经营管理和生态价值评估提供技术支撑。

关键词: 胡杨, 冠幅, 地上生物量, 无人机遥感, 模型

Abstract:

The purpose was to construct an estimation model of the crown diameter(CD) of Populus euphratica and aboveground biomass (AGB).328 sample trees were selected from the sample plots of P.euphratica distribution area,and the CD of P.euphratica by unmanned aerial vehicle (UAV) remote sensing data was taken as the independent variable,combined with the aboveground fresh biomass obtained from the P.euphratica biomass model,and,the estimation model of different function forms is constructed and precision analysis is performed through correlation and regression analysis methods.The best models for estimating the biomass of P.euphratica with UAV remote sensing were the cubic functions in Moyu County,Bachu County,and Luntai County.The accuracy was 94.93%,95.63%,and 92.24% respectively.The optimal estimation model for aboveground biomass of different ages of P.euphratica is determined.It was feasible to estimate the biomass by using UAV remote sensing,which provided technical support for the management and ecological value evaluation of P.euphratica.

Key words: Populus euphratica, crown width, aboveground biomass, UAV remote sensing, model

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