My watch list
my.chemeurope.com  
Login  

Sensors, Vol. 18, Pages 830: Detecting Sulfuric and Nitric Acid Rain Stresses on Quercus glauca through Hyperspectral Responses

Sensors, Vol. 18, Pages 830: Detecting Sulfuric and Nitric Acid Rain Stresses on Quercus glauca through Hyperspectral Responses

Sensors doi: 10.3390/s18030830

Authors: Shanqian Wang Xiuying Zhang Yuandan Ma Xinhui Li Min Cheng Xiaomin Zhang Lei Liu

Acid rain, which has become one of the most severe global environmental issues, is detrimental to plant growth. However, effective methods for monitoring plant responses to acid rain stress are currently lacking. The hyperspectral technique provides a cost-effective and nondestructive way to diagnose acid rain stresses. Taking a widely distributed species (Quercus glauca) in Southern China as an example, this study aims to monitor the hyperspectral responses of Q. glauca to simulated sulfuric acid rain (SAR) and nitric acid rain (NAR). A total of 15 periods of leaf hyperspectral data under four pH levels of SAR and NAR were obtained during the experiment. The results showed that hyperspectral information could be used to distinguish plant responses under acid rain stress. An index (green peak area index, GPAI) was proposed to indicate acid rain stresses, based on the significantly variations in the region of 500–660 nm. Light acid rain (pH 4.5 SAR and NAR) promoted Q. glauca growth relative to the control groups (pH 5.6 SAR and NAR); moderate acid rain (pH 3.0 SAR) firstly promoted and then inhibited plant growth, while pH 3.0 NAR showed mild inhibitory effects during the experiment; and heavy acid rain (pH 2.0) significantly inhibited plant growth. Compared with NAR, SAR induced more serious damages to Q. glauca. These results could help monitor acid rain stress on plants on a regional scale using remote sensing techniques.

Authors:   Wang, Shanqian ; Zhang, Xiuying ; Ma, Yuandan ; Li, Xinhui ; Cheng, Min ; Zhang, Xiaomin ; Liu, Lei
Journal:   Sensors
Volume:   18
edition:   3
Year:   2018
Pages:   830
DOI:   10.3390/s18030830
Publication date:   09-Mar-2018
Facts, background information, dossiers
More about Molecular Diversity Preservation International
Your browser is not current. Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE