Institute for Agro-Environmental Sciences, NARO

Asian ALTER Network (Asian Agricultural Long-Term ExpeRiment Network)


What is Asian ALTER Network?

Asian Agricultural Long-Term ExpeRiment (ALTER) Network is a research consortia consisting of individual scientists who are involved in agricultural long-term field experiments with a focus on soil or plant-soil interaction. Asian ALTER Network was launched on March 1st, 2017 by the scientists who participated in the NARO-MARCO international symposium on "Soil carbon sequestration: Needs and prospects under the 4 per 1000 initiative" held in Tsukuba, Japan.

ALTER has been providing one of the most valuable scientific basis to assess long-term sustainability of agricultural lands. Now, ALTER has an additional importance to examine the options and the degree of success towards the goals for "The 4 per 1000 Initiative: Soils for food security and climate" established during COP21 (Dec 2015, Paris).

Asia holds more than half of world population and experiences high pressure for agricultural intensification and expansion. Enormous variation in climate, soil type, and cultural practices is present in Asia. We need to account for these factors when assessing soil carbon sequestration potentials and agricultural sustainability. Asian ALTER network is therefore established to promote ALTER among Asian countries and beyond.


The mission of Asian ALTER network is to provide scientific basis and management options for soil C sequestration and agricultural sustainability in Asia and beyond. Following is the present goals of our network to accomplish our mission.

  • To facilitate collaboration, exchange of information and scientists, and the formation of joint research
  • To provide long-term dataset to the global science community
  • To show the public and decision makers the importance of LTFE thereby securing funding to maintain and strengthen LTFE programs in Asia.


  • Claire CHENU (INRA/Agro Paris Tech, France)
  • Minggang XU (CAAS, China)
  • Suphakarn LUANMANEE (DOA, Thailand)
  • Srinivasa Rao CHERUKUMALLI (ICAR-CRIDA, India)
  • Jagadeesh YELURIPATI (The James Hutton Institute, UK)
  • Yasuhito SHIRATO (NARO, Japan)
  • Shoji MATSUURA (NARO, Japan)
  • Hideo KUBOTERA (NARO, Japan)
  • Rota WAGAI (NARO, Japan)


    For further details and inquiries, please contact us at:


    The NARO-MARCO "4 per 1000" symposium was held in Tsukuba, Japan

    C. Chenu, Y. Shirato and M. Xu attended the FAO Global Symposium on Soil Organic Carbon (GSOC17) in Rome, Italy. Website Link

    C. Chenu and Y. Shirato attended the 2nd meeting of the science and technical committee of the FAO "4 per 1000" initiative in Rome, Italy.

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