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基于HJ-1馬尾松葉面積指數(shù)的遙感反演
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福建省自然科學(xué)基金資助項(xiàng)目(2011J01258)


Inversion Model of Pinus massoniana Leaf Area Index Based on HJ-1
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    以福建省為研究區(qū),利用環(huán)境星(HJ-1)CCD數(shù)據(jù),選擇并提取了與葉面積指數(shù)(LAI)關(guān)系密切的4種植被指數(shù),即歸一化比值植被指數(shù)(NDVI)、比值植被指數(shù)(RVI)、改進(jìn)的土壤調(diào)節(jié)植被指數(shù)(mSAVI)及增強(qiáng)型植被指數(shù)(EVI),結(jié)合研究區(qū)內(nèi)準(zhǔn)同步馬尾松LAI地面觀測(cè)數(shù)據(jù),通過研究各種指數(shù)與馬尾松LAI之間的關(guān)系,選擇與馬尾松LAI相關(guān)最密切的RVI同實(shí)測(cè)LAI建立6種非線性回歸模型,6種模型中以理查德模型建立的模型精度為最高,總體均值預(yù)報(bào)偏差相對(duì)誤差為3.1%,并以此模型實(shí)現(xiàn)了福建省馬尾松LAI遙感反演。

    Abstract:

    Taking Fujian province as the research object and basing on the CCD data of HJ-1, four vegetation indices were selected which closely related to LAI. The selected indices included NDVI, RVI, mSAVI and EVI. Meanwhile, data synchronized with LAI of Pinus massoniana was obtained, and then the relationship between the indices and the LAI was built. At last, six kinds of the non linear regression models, between the LAI of Pinus massoniana and the selected index RVI that most closely related to the LAI, was established. It was found that the model based on the Richards distribution function is the best and the relative error of the prediction of mean value is 3.1%. Based on this model, the remote sensing inversion of the LAI of Pinus massoniana in Fujian province was implemented.

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賴日文,劉 健,許章華,汪 琴.基于HJ-1馬尾松葉面積指數(shù)的遙感反演[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2014,45(3):255-261. Lai Riwen, Liu Jian, Xu Zhanghua, Wang Qin. Inversion Model of Pinus massoniana Leaf Area Index Based on HJ-1[J]. Transactions of the Chinese Society for Agricultural Machinery,2014,45(3):255-261.

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  • 收稿日期:2013-03-29
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  • 在線發(fā)布日期: 2014-03-10
  • 出版日期: 2014-02-10