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利用无人机遥感测定岷江冷杉单木树干生物量

何游云 张玉波 李俊清 王卷乐

何游云, 张玉波, 李俊清, 王卷乐. 利用无人机遥感测定岷江冷杉单木树干生物量[J]. 北京林业大学学报, 2016, 38(5): 42-49. doi: 10.13332/j.1000-1522.20150383
引用本文: 何游云, 张玉波, 李俊清, 王卷乐. 利用无人机遥感测定岷江冷杉单木树干生物量[J]. 北京林业大学学报, 2016, 38(5): 42-49. doi: 10.13332/j.1000-1522.20150383
HE You-yun, ZHANG Yu-bo, LI Jun-qing, WANG Juan-le. Estimation of stem biomass of individual Abies faxoniana through unmanned aerial vehicle remote sensing[J]. Journal of Beijing Forestry University, 2016, 38(5): 42-49. doi: 10.13332/j.1000-1522.20150383
Citation: HE You-yun, ZHANG Yu-bo, LI Jun-qing, WANG Juan-le. Estimation of stem biomass of individual Abies faxoniana through unmanned aerial vehicle remote sensing[J]. Journal of Beijing Forestry University, 2016, 38(5): 42-49. doi: 10.13332/j.1000-1522.20150383

利用无人机遥感测定岷江冷杉单木树干生物量

doi: 10.13332/j.1000-1522.20150383
基金项目: 

环保公益性行业科研专项(201509042)、国家科技基础性工作专项项目(2011FY110400)

详细信息
    作者简介:

    何游云。主要研究方向:恢复生态学。Email:heyouyun_612@126.com 地址:100083 北京市海淀区清华东路35号北京林业大学林学院。

    责任作者:

    李俊清,教授,博士生导师。主要研究方向:森林生态学。Email :lijq@bjfu.edu.cn 地址:同上。

Estimation of stem biomass of individual Abies faxoniana through unmanned aerial vehicle remote sensing

  • 摘要: 无人机获取的高分辨率遥感影像,已成为单木生物量估算的有效手段。本文以四川省王朗自然保护区岷江冷杉为研究对象,利用本项目组自行研制的无人机获取无阴影遥感影像。设置2块样地,其中plot 1为建模样本,plot 2为验证样本。通过人机交互的方式提取单木树冠面积(CA)数据,并结合野外实测的胸径(DBH),建立DBH遥感估算模型。最后基于CA-DBH模型的有效性,结合已有DBH-SB(树干生物量)经验方程,计算plot 2岷江冷杉单木树干生物量。结果表明:基于无人机遥感影像提取的单木CA与实测DBH存在较好的非线性相关关系,所建立的模型有较好的拟合度,R2达到0.752(P<0.001,n=94)。采用t检验验证CA-DBH模型预测值与观测值的差异,同时计算皮尔森相关系数(Pearson Correlation Coefficient),检验结果表明:该模型估算的DBH与实测值偏差差异不显著(P>0.05),其皮尔森相关系数可达0.879,证明利用无人机获取的遥感影像,通过提取的CA估算DBH是可行的。本次实验表明:利用无人机遥感获取影像,通过提取的单木CA进行树干生物量的估算是有效的。

     

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出版历程
  • 收稿日期:  2015-11-02
  • 修回日期:  2015-11-02
  • 刊出日期:  2016-05-31

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