title: [Spectral characteristics of Pinus tabulaeformis canopy with different damaged rates of needle leaf in western Liaoning Province, Northeast China].
abstract: Through the measurement of the spectral reflectance of large areas Chinese pine (Pinus tabulaeformis Carr. ) canopy in western Liaoning Province, this paper analyzed the difference of the spectral reflectance of the canopies with different damaged rates of needle leaf. In visible band, the characteristics of the spectral reflectance of P. tabulaeformis canopies with healthy and damaged needle leaf were in accordance with the spectral characteristics of green plants, but the position of red valley was not obvious when the damaged rate of needle leaf was higher than 60%. In near-infrared band, with the decrease of the damaged rate of needle leaf, the canopy spectral reflectance increased at 780-1350 nm, but decreased at 1450-1800 and 1950-2350 nm. With the increase of the damaged rate, the position of red-edge inflection moved to the short-wave direction. There were significant correlations between the damaged rate of needle leaf and the red edge feature variables and some vegetation indices. The model based on DVI (1470, 860) could be more reliable for predicting the damaged rate of needle leaf in P. tabulaeformis canopy in western Liaoning Province.
authors.affiliation: Institute of Atmospheric Environment, China Meteorological Administration, Shenyang 110016, China. fengrui_k@163.com
authors.forename: Rui
authors.initials: R
authors.lastname: Feng
authors.forename: Yu-Shu
authors.initials: YS
authors.lastname: Zhang
authors.forename: Wen-Ying
authors.initials: WY
authors.lastname: Yu
authors.forename: Jin-Wen
authors.initials: JW
authors.lastname: Wu
authors.forename: Pei-Juan
authors.initials: PJ
authors.lastname: Wang
authors.forename: Rui-Peng
authors.initials: RP
authors.lastname: Ji
authors.forename: Yu-Sheng
authors.initials: YS
authors.lastname: Che
authors.forename: Yong-Ning
authors.initials: YN
authors.lastname: Zhu
mesh_terms: D002681:China; D028223:Pinus / Q000254:growth & development* / Q000469:parasitology*; D010935:Plant Diseases / Q000517:prevention & control; D018515:Plant Leaves / Q000469:parasitology*; D058998:Remote Sensing Technology; D013057:Spectrum Analysis