应用生态学报2012，Vol.23Issue(7)：1774-1780,7.
辽西不同针叶被害率的油松冠层光谱特征
Spectral characteristics of Pinus tabulaeformis canopy with different damaged rates of needle leaf in western Liaoning Province, Northeast China
摘要
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.关键词
针叶被害率/光谱特征/油松/冠层Key words
damaged rate of needle leaf/ spectral characteristics/ Pinus tabulaeformis/ canopy分类
农业科技引用本文复制引用
冯锐,张玉书,于文颖,武晋雯,王培娟,纪瑞鹏,车宇胜,朱永宁..辽西不同针叶被害率的油松冠层光谱特征[J].应用生态学报,2012,23(7):1774-1780,7.基金项目
科技部公益性行业科研专项(GYHY200906028)和国家自然科学基金项目(40901170)资助. （GYHY200906028）
