Evaluation of changes in climatic indices using combined analysis of remote sensing and GIS

K. Okamoto, Masayuki Yokosawa, H. Kawashima

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We predicted the future conditions of places in which major cereals are cultivated using satellite remote sensing data in combination with spatial analysis as provided by geographical information systems (GIS). The open policy and economic reform have significantly accelerated economic growth of mainly in the coastal regions of China. Economic growth in China will change the diet and will increase cereal demand. As a case study, we predicted the trend of major cereal production in China in the 21st century. We also predicted the agricultural productivity of existing fields cropped with major cereals based on climatic indices, i.e., the net primary productivity (NPP) and the balance between precipitation and potential evapotranspiration (P-PET), from the present to 2090s. The agricultural productivity in central, northern and northeastern China will increase as a result of an increase in the NPP, while that in southern China will not. The agricultural productivity in western China will decline as a result of a decrease in P-PET. Desertification will be a problem in these regions. The result of this study suggests that combined analysis of satellite remote sensing and GIS data is effective for use in a comparative study of the present and the future conditions.

Original languageEnglish
Title of host publication2001 International Conferences on Info-Tech and Info-Net
Subtitle of host publicationA Key to Better Life, ICII 2001 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages133-138
Number of pages6
Volume1
ISBN (Electronic)0780370104, 9780780370104
DOIs
Publication statusPublished - 2001
Externally publishedYes
EventInternational Conferences on Info-Tech and Info-Net, ICII 2001 - Beijing, China
Duration: 2001 Oct 292001 Nov 1

Other

OtherInternational Conferences on Info-Tech and Info-Net, ICII 2001
CountryChina
CityBeijing
Period01/10/2901/11/1

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Keywords

  • Cereal
  • China
  • Climatic Index
  • Combined Analysis
  • Productivity

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Networks and Communications
  • Computer Science Applications
  • Signal Processing
  • Computers in Earth Sciences
  • Control and Systems Engineering
  • Instrumentation

Cite this

Okamoto, K., Yokosawa, M., & Kawashima, H. (2001). Evaluation of changes in climatic indices using combined analysis of remote sensing and GIS. In 2001 International Conferences on Info-Tech and Info-Net: A Key to Better Life, ICII 2001 - Proceedings (Vol. 1, pp. 133-138). [982734] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICII.2001.982734