Study on measurement and correlation of typical canopy LAI by indirect method in seashore, Hainan

Author

Wen-Hong, Yan ; Jin-Jin, Ouyang

Author_Institution

Sch. of Econ. & Manage., Hunan Inst. of Sci. & Technol., Yueyang, China

Volume

4

fYear

2010

fDate

17-18 July 2010

Firstpage

377

Lastpage

380

Abstract

LAI (Leaf Area Index) is the basic research on green vegetation O₂CO₂ exchange, water recycle and water-lose, solar energy utilization efficiency. The LAI indirect method-Imaging Digital Canopy, based on “gap-fraction” process, was used and described in this paper. 9 typical various plant communities measuring spots were settled. It showed characteristic marks of community such as LAI, radiation transmission co-efficient, extinction co-efficient. LAI of rain forest was measured according to height of community in different developing stage. The study also analyzed technique to minimize error about the Digital Plant Canopy Imager CI110. It was discussed that LAI of seashore rain forest was lower than that of typical mountain rainforest. LAI correlation of various vegetations was also mentioned. The result should supply scientific basis to study on air environmental effects of tropical seashore vegetation.

Keywords

geophysical image processing; geophysical techniques; vegetation mapping; CI110; China; Hainan; Imaging Digital Canopy; digital plant canopy imager; extinction coefficient; gap-fraction process; indirect method; leaf area index; mountain rainforest; radiation transmission coefficient; seashore rainforest; seashore vegetation; solar energy utilization efficiency; water recycle; Communities; Hainan; LAI (Leaf Area Index); canopy; indirect method; seashore;

fLanguage

English

Publisher

ieee

Conference_Titel

Environmental Science and Information Application Technology (ESIAT), 2010 International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-7387-8

Type

conf

DOI

10.1109/ESIAT.2010.5567416

Filename

5567416