文献类型: 外文期刊
第一作者: Huang, Qing
作者: Huang, Qing;Zhou, Qingbo;Wu, Wenbin;Wang, Limin;Zhang, Li;Huang, Qing;Zhou, Qingbo;Wu, Wenbin;Wang, Limin;Zhang, Li
作者机构:
关键词: MODIS data;NDVI;Accuracy assessment;Crop growth monitoring;Area extraction
期刊名称:INTELLIGENT AUTOMATION AND SOFT COMPUTING ( 影响因子:1.647; 五年影响因子:1.469 )
ISSN: 1079-8587
年卷期: 2012 年 18 卷 8 期
页码:
收录情况: SCI
摘要: This paper presents a method used in China Agriculture Remote Sensing Monitoring System (CHARMS) for automatically identifying crop planting areas and monitoring crop growth conditions at a large scale based on time-series of MODIS NDVI Datasets. In doing that, the characteristics of NDVI time series of spring wheat, spring corn, soybean and rice in Northeastern China were firstly analyzed to determine the threshold values used for extracting different crops. Then using these thresholds, extraction models for above-mentioned four major crops were established and applied to obtain the spatial distribution of these four crops in Northeastern China in 2009. In comparison with the average statistic data of several years, the total extraction accuracy is over 87%, which suggests its feasibility to extract planting areas of different crops at a large scale using MODIS data. Based on the extracted crop planting areas, the same MODIS NDVI time series data were used to monitor crop growth conditions in 2009 and compared with the average crop growth of last five years. The crop growth conditions were categorized into three classes, better than usual, usual and worse than usual. The results showed that crop growth conditions in Northeastern China varied over both spatial and temporal scales.
分类号:
- 相关文献
作者其他论文 更多>>
-
Short-term high-light intensity and low temperature improve the quality and flavor of lettuce grown in plant factory
作者:Zhang, Li;Huang, Tao;Jiang, Hui;Song, Bo;Duan, Zhiling;Li, Yuejian;Yang, Xiao;Yang, Qichang;Zhang, Qiqi;Song, Hongyuan;Escalona Contreras, Victor Hugo
关键词:light quality; temperature; nutritional value; bitterness; leafy vegetables
-
Co-incorporation of Chinese milk vetch (Astragalus sinicus L.) and chemical fertilizers alters microbial functional genes supporting short-time scale positive nitrogen priming effects in paddy soils
作者:Wang, Limin;He, Chunmei;Huang, Dongfeng;Liu, Cailing;Li, Qinghua;Huang, Yibin;Li, Juan;Wang, Fei;Yu, Juhua
关键词:green manure; gross priming effect; incorporation practice; microbial mechanism; net priming effect; rice field soil
-
A self-adaptive parallel image stitching algorithm for unmanned aerial vehicles in edge computing environments
作者:Xu, Xin;Zhang, Li;Yue, Jibo;Zhong, Heming;Wang, Ying;Qiao, Hongbo;Liu, Jie;Lu, Yanhui
关键词:UAV remote sensing; panoramic stitching; multi-core CPU; multi process; edge computing
-
Integrative Analysis of Oleosin Genes Provides Insights into Lineage-Specific Family Evolution in Brassicales
作者:Zou, Zhi;Zhang, Li;Zhao, Yongguo;Zhang, Li;Zhao, Yongguo
关键词:whole-genome duplication; gene expansion; evolutionary analysis; synteny analysis; orthogroup; divergence
-
Response of soil moisture to prewinter conditions and rainfall events at different distances to gully banks in the Mollisol region of China
作者:Wen, Yanru;Liu, Bao;Yu, Qiangyi;Xu, Yanyan;Wu, Wenbin;Song, Qian;Liu, Bao;Xu, Yanyan;Li, Ting-Yong;Lin, Litao;Zhang, Bin;Wu, Wenbin;Song, Qian
关键词:gully bank; gully erosion; Mollisol region; prewinter soil moisture; rainfall events; soil moisture response
-
N123I mutation in the ALV-J receptor-binding domain region enhances viral replication ability by increasing the binding affinity with chNHE1
作者:Yu, Mengmeng;Zhang, Yao;Zhang, Li;Wang, Suyan;Liu, Yongzhen;Xu, Zhuangzhuang;Liu, Peng;Chen, Yuntong;Guo, Ru;Meng, Lingzhai;Zhang, Tao;Fan, Wenrui;Qi, Xiaole;Gao, Li;Zhang, Yanping;Cui, Hongyu;Gao, Yulong;Gao, Yulong;Gao, Yulong
关键词:
-
Progress in Microbial Fertilizer Regulation of Crop Growth and Soil Remediation Research
作者:Wang, Tingting;Xu, Jiaxin;Liu, Peng;Hou, Xin;Yang, Long;Zhang, Li;Chen, Jian
关键词:microbiological fertilizer; plant-growth-promoting bacteria; crop growth; soil remediation