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Remote Sensing Technology and Application  2022, Vol. 37 Issue (5): 1029-1042    DOI: 10.11873/j.issn.1004-0323.2022.5.1029
    
Application of Space Observation Technology in Oil Palm Research
Qiang Zhao1(),Le Yu2(),Yidi Xu2,Weijia Li3,Juepeng Zheng2,Haohuan Fu2,Hui Lu2,Yongguang Zhang1,Peng Gong4
1.School of Geography and Ocean Science，Nanjing University，Nanjing 210023，China
2.Department of Earth System Science，Tsinghua University，Beijing 100084，China
3.CUHK-SenseTime Joint Lab，The Chinese University of Hong Kong，Hong Kong，China
4.Department of Geography and Earth Sciences，The University of Hong Kong，Hong Kong，China
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Abstract  

Oil palm is a major economic crop and the area of land converted to oil palm cultivation in the tropics has expanded rapidly. Oil palm has become the world's largest source of vegetable oil and it provides tremendous regional economic benefits. However， the expansion of oil palm cultivation has led to the loss of forests， arable land， and peatland， which has caused severe ecological and environmental problems. Application of 3S （RS， GIS， GNSS） technology is useful for the collection， analysis， and management of spatial information， and is essential for both optimizations of the spatial distribution of land use and sustainable development. This paper analyzes the progress of 3S technology application in oil palm research on the basis of a literature review and scientometric analysis. The factors affecting the precision of oil palm mapping are also discussed. We established that papers describing 3S technology application in oil palm research are based primarily on the study of land cover change， and that scientific institutions and researchers in Malaysia， the United States， China， Indonesia， and the United Kingdom are the major contributors. Currently， the application of 3S technology in oil palm research includes oil palm mapping， oil palm land change monitoring， oil palm tree counting， tree age estimation， aboveground biomass and carbon storage estimation， suitability analysis， yield estimation， pest and disease monitoring， and plantation management. The accuracy of mapping is not correlated significantly with the year of publication of specific literature but is correlated with RS data sources and classification methods. The use of 3S technology in oil palm research is currently dominated by RS， which has been used in diverse fields of oil palm research. GIS technology is used mainly for oil palm land change mapping， suitability analysis， plantation management， and pest and disease monitoring， while GNSS is used largely as an additional tool in pest and disease monitoring and plantation management.
Key words:  Oil palm      3S technology      Scientometric analysis      Sustainable development     
Received:  30 July 2021      Published:  13 December 2022
ZTFLH:  TP79  
Corresponding Authors:  Le Yu     E-mail:  qiang.zhao@smail.nju.edu.cn;leyu@tsinghua.edu.cn
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Qiang Zhao
Le Yu
Yidi Xu
Weijia Li
Juepeng Zheng
Haohuan Fu
Hui Lu
Yongguang Zhang
Peng Gong

Cite this article: 

Qiang Zhao,Le Yu,Yidi Xu,Weijia Li,Juepeng Zheng,Haohuan Fu,Hui Lu,Yongguang Zhang,Peng Gong. Application of Space Observation Technology in Oil Palm Research. Remote Sensing Technology and Application, 2022, 37(5): 1029-1042.

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http://www.rsta.ac.cn/EN/10.11873/j.issn.1004-0323.2022.5.1029     OR     http://www.rsta.ac.cn/EN/Y2022/V37/I5/1029

Fig.1  The spatial distribution of oil palm researches in different periods
Fig.2  Annual statistics on the number of publications and citations of oil palm research papers
Fig.3  Keywords co-occurrence network
Fig.4  Co-citation network at the institutional level and the regiona level in oil palm research
Fig.5  The relationship between mapping accuracy and publication time
Fig.6  Frequency of use of different remote sensing data sources
Fig.7  Classification accuracy of different remote sensing data sets
Fig.8  Frequency and accuracy of different classification methods
Fig.9  The relationship between the number of classes and the accuracy of the classification system
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