Title :
Estimation of leaf area index of qinghai spruce (picea crassifolia) forest using remote sensing in Qilian Mountains, Northwest China
Author :
Zhao Chuanyan ; Cheng Guodong ; Jia Yanhong ; Li Shoubo
Author_Institution :
Cold & Arid Region Environ. & Eng. Res. Inst., Lanzhou
Abstract :
A maximum growing season LAI in the Xishui natural reserve was estimated by direct measurement approach (allometric equation) and indirect method (remote sensing data), compare. LAI values from satellite measurements were compared with those from allometric function. We found that the errors, ranged from -0.25 to 0.46 in mature and over-mature trees at higher altitude, from 0.87 to 1.02 in young growth and half-mature trees at lower altitude.
Keywords :
forestry; geophysical techniques; remote sensing; vegetation; Picea crassifolia; Qilian mountains; Qinghai spruce forest; Xishui natural reserve; allometric equation; leaf area index estimation; maximum growing season LAI; northwest China; remote sensing data; Area measurement; Biological system modeling; Content addressable storage; Data engineering; Equations; Rain; Remote sensing; Soil; State estimation; Vegetation; LAI; NDVI; Qilian Mountains; Qinghai spruce; allometric function;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2007. IGARSS 2007. IEEE International
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-1211-2
Electronic_ISBN :
978-1-4244-1212-9
DOI :
10.1109/IGARSS.2007.4423075
