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The Hyperspectral Diagnosis Model for Acid Stress of Cinnamomum camphora |
LI Xin-hui1, ZHANG Xiu-ying1*, MA Yuan-dan2, JIN Jia-xin1*, CHENG Min1, 3, ZHANG Xiao-min1, JIANG Hong1, 2 |
1. International Institute for Earth System of Science Nanjing University, Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, Nanjing 210023, China
2. Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Lin’an 311300,China
3. Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China |
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Abstract The hyperspectral technique plays an important role in detecting the response of plant under the acid stress. Taking Cinnamomum camphora as the subject, the hyperspectral information at leaf scale under 419 days of acid disposals was measured. Differing from other kinds of environmental stresses, the responses of plants under acid stress are more complicated due to the fertilizer effect of sulfur and nitrogen. Based on the hyperspectral monitoring on the leaf of Cinnamomum camphora under four grades of acid rains (pH 5.6,pH 4.5,pH 3.0,pH 2.0), the aim of this study is to find the turning point from promoting to inhibiting growth by acid rain. Based on the 16 terms of hyperspectral data, the pretreatments were firstly conducted and the abnormal values were removed; and then the typical spectrals were selected based on the temporal variations of leaf response (the differences of the spectral values under pH 5.6 minus those under pH 4.5, pH 3.0, pH 2.0, respectively) under acid stresses; finally the diagnostic models were constructed using the typical spectral. The results showed that the typical bands to reflect the response of Cinnamomum camphora under acid stresses were mainly within 470~520 and 565~700 nm, based on which the difference of blue edge index and the difference of yellow edge index were built. The acid rain with pH 4.5 and pH 3.0 first promoted and then inhibited the growth of Cinnamomum camphora, with the turning point at 100 days and 50 days of spraying acid rain, respectively. The acid rain with pH 2.0 inhibited the growth of Cinnamomum camphora at the beginning of acid treatments, and this inhibition had been strengthened with time increasing. This study showed that the long term of hyperspectral monitoring could indicate the temporal variations of the responses of Cinnamomum camphora under acid treatments. These results could provide scientific information for monitoring the plant responses under acid rain at a regional scale, which also provide scientific suggestions for the government to enact environmental protection plans.
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Received: 2016-01-20
Accepted: 2016-05-09
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Corresponding Authors:
ZHANG Xiu-ying,JIN Jia-xin
E-mail: zhangxy@nju.edu.cn; jiaxinking@126.com
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[1] Liu Meiling, Liu Xiangnan, Li Jonathan, et al. International Journal of Applied Earth Observation and Geoinformation, 2012, 19: 12.
[2] QU Yong-hua, JIAO Si-hong, LIU Su-hong, et al(屈永华,焦思红,刘素红,等). Spectroscopy and Spectral Analysis (光谱学与光谱分析), 2015, 35(11): 3176.
[3] SONG Xiao-dong, JIANG Hong, YU Shu-quan, et al(宋晓东, 江 洪, 余树全, 等). Acta Ecologica Sinica(生态学报), 2008, 23(05): 1959.
[4] CHENG Miao-miao, JIANG Hong, CHEN Jian, et al(程苗苗, 江 洪, 陈 健, 等). Acta Ecologica Sinica(生态学报), 2009, 33(11): 5953.
[5] XIE Xiao-zan, JIANG Hong, SONG Xiao-dong, et al(谢小赞, 江 洪, 宋晓东, 等). Remote Sensing Information(遥感信息), 2010, 1: 32.
[6] Li Yi, Yu Xiaolan, Cheng Hongbing, et al. Atmospheric Research, 2010, 96(1): 173.
[7] LIU Zi-heng, CHANG Jing, TANG Yan-lin(刘子恒, 常 静, 唐延林). Spectronic Instruments & Analysis(光谱仪器与分析), 2009,Z1:134.
[8] HUANG Wen-yong(黄文勇). Journal of Green Science and Technology(绿色科技), 2012, 15(2): 54.
[9] GAO Guang-lei, XIN Zhong-bao, DING Guo-dong, et al(高广磊, 信忠保, 丁国栋, 等). Acta Ecologica Sinica(生态学报), 2013, 71(6): 1675.
[10] XIE Xiao-zan, JIANG Hong, YU Shu-quan, et al(谢小赞, 江 洪, 余树全, 等). Acta Ecologica Sinica(生态学报), 2009, 29(10): 5713.
[11] QIN Hui-xian, WANG Shu-gong, QIU Rong-liang, et al(岑慧贤, 王树功, 仇荣亮, 等). Environmental Pollution & Control(环境污染与防治), 2001, 14(1): 13. |
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