Estimating severity level of cotton disease based on spcctral indicse of TM image
文献类型: 外文期刊
第一作者: Chen Bing
作者: Chen Bing;Li Shao-Kun;Wang Ke-Ru;Su Yi;Chen Jiang-Lu;Jin Xiu-Liang;Lv Yin-Liang;Diao Wan-Ying;Li Shao-Kun;Wang Ke-Ru;Chen Bing
作者机构:
关键词: Cotton;Disease severity level;TM image;Spectral indices;Estimation models
期刊名称:JOURNAL OF INFRARED AND MILLIMETER WAVES ( 影响因子:0.557; 五年影响因子:0.445 )
ISSN: 1001-9014
年卷期: 2011 年 30 卷 5 期
页码:
收录情况: SCI
摘要: The cotton field infected by Verticillum wilt was investigated with both the multi-temporal TM images and the field survey simultaneously. A model of evaluating disease severity of the cotton was established by analyzing the correlation between spectral indices of TM image and severity level (SL) of the disease. The results indicated that with an increase of disease SLs, the values of spectral indices B2,B4,SATVI,OSAVI,MSAVI,TSAVI,SVNSWI,SNSWIa,SNSWIb,SVNI,DNSIa,DNSIb,NDSWIa,NDSWIb,RNSWIa,RNSWIb,DVNI,EVI,TVI,SAVI,DVI,NDVI,RVI and PVI declined slowly, B1, B3, B7 and RI increased gradually, NDGI increased at first and then decreased,while B5 exhibited a trend of decrease-increase with an increase of disease SLs. The SLs of disease were highly significantly positive correlated with the spectral indices values of B1,B3 and RI, highly significantly negative correlated with the spectral indice values of B4,OSAVI,MSAVI,TSAVI,SVNSWI, SNSWIa,SNSWIb, SVNI, DNSIa, DNSIb,NDSWIa, NDSWIb, RNSWIa, RNSWIb, DVNI, EVI, TVI, NDGI, SAVI, DVI, NDVI, RVI and PVI, significantly negative correlated with the spectral indice values of SATVI, and no significantly correlated with the spectral indice values of B2,B5 and B7. All of the eight spectral indices of TM image selected achieved significant correlation level. However, the linear models on the basis of DVI and DNSIb had the best estimating precision. This study demonstrated that it is feasible to estimate quantitatively the SL of cotton disease using the spectral indices of TM satellite image.
分类号:
- 相关文献
作者其他论文 更多>>
-
Dynamics of maize grain drying in the high latitude region of Northeast China
作者:Chu Zhen-dong;Zhang Wan-xu;Hou Liang-yu;Li Shao-kun;Chu Zhen-dong;Ming Bo;Li Lu-lu;Xue Jun;Hou Liang-yu;Xie Rui-zhi;Hou Peng;Wang Ke-ru;Li Shao-kun;Chu Zhen-dong
关键词:grain drying; maize; Northeast China; two-segment linear model
-
Study of corn kernel breakage susceptibility as a function of its moisture content by using a laboratory grinding method
作者:Guo Ya-nan;Hou Liang-yu;Li Lu-lu;Gao Shang;Hou Jun-feng;Ming Bo;Xie Rui-zhi;Xue Jun;Hou Peng;Wang Ke-ru;Li Shao-kun;Guo Ya-nan;Hou Liang-yu;Li Shao-kun
关键词:corn variety; corn kernel; breakage susceptibility; moisture content; grinding method
-
Systemic regulation of photosynthetic function in maize plants at graining stage under a vertically heterogeneous light environment
作者:Wu Han-yu;Qiao Mei-yu;Jiang Chuang-dao;Wu Han-yu;Zhang Wang-feng;Wang Ke-ru;Li Shao-kun
关键词:light environment; photosynthesis; gas exchange; chlorophyll a fluorescence transient; reproductive growth
-
Current state and suggestions for mechanical harvesting of corn in China
作者:Xie Rui-zhi;Ming Bo;Gao Shang;Wang Ke-ru;Hou Peng;Li Shao-kun
关键词:
-
Historical trends in maize morphology from the 1950s to the 2010s in China
作者:Ma Da-ling;Yu Xiao-fang;Gao Ju-lin;Xie Rui-zhi;Li Shao-kun
关键词:maize yield; morphological characteristics; breeding direction; artificial selection; improved maize cultivars; mechanized farming
-
Difference in corn kernel moisture content between pre- and post-harvest
作者:Li Lu-lu;Bo, Ming;Jun, Xue;Shang, Gao;Wang Ke-ru;Xie Rui-zhi;Peng, Hou;Li Shao-kun
关键词:kernel moisture content; pre-harvest and post-harvest; corn
-
Yield gap and resource utilization efficiency of three major food crops in the world - A review
作者:Rong Liang-bing;Gong Kai-yuan;Rong Liang-bing;Gong Kai-yuan;He Jian-qiang;Yu Qiang;Rong Liang-bing;Gong Kai-yuan;Duan Feng-ying;Li Shao-kun;Zhao Ming;Zhou Wen-bin;He Jian-qiang;He Jian-qiang;Yu Qiang;Yu Qiang
关键词:food crops; yield; yield gap; resource utilization efficiency; yield-limiting factor