Institute of Lowland and Marine Research, Saga University is the organization which was newly launched under the time limit for six years on April 1, 2010 with merger reorganization of an old Institute of Lowland Technology, Saga University and an old Ariake Sea Research Project, Saga University.


Saga Plain, a typical lowland, is composed of soft clay ground which has low shear strength and high compressibility. As with other lowlands, the geological situation makes Saga Plain, located between mountains and seas, is highly vulnerable to flooding. Ground subsidence due to excessive pumping of groundwater, the consequent pollutions of ground water and soil seriously threaten the extensive industrial and agricultural activities in Saga Plain.

The Ariake Sea, which is a meso- to macro tidal sea reaching its tidal range up to 6 m, bordering the Saga Plain, occupies 40 % of tidal flats area of Japan. The sea provides various marine products and support a number of rare and endangered species. The harvest of Nori (Porphyra Yezoensis) constitutes nearly 50 % for total volume in Japan. Furthermore, the sea is a treasury of biodiversity sine the sea nurture many kinds of unique species. However environmental deterioration has become serious in recent years.

ILMR focuses on above-mentioned issues in lowland and coastal marine environments as unique academic organization in the world. The institute aspires to become a core organization for lowland and marine researches in the world creative and innovative researches together with national and international outreach activities.

Institute of Lowland and Marine Research
Director Hiroyuki Araki