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[G-1.2.1 Assessment of the Human Effect on Desertification and Land Degradation]

[Contact Person]

Michikazu Fukuhara
Head, Division of Environmental Planning
Department of Environmental Management
National Institute of Agro-Environmental Sciences
Ministry of Agriculture, Forestry and Fisheries
3-1-1 Kannondai, Tsukuba, Ibaraki 305 Japan
Phone +81-298-38-8273 Fax +81-298-38-8199

[Total Budget for FY1992-1994]

25,180,000 Yen (FY1994 8,506,000 Yen)

[Abstract]

1) Desertification in eastern China was characterized by reactivation of fixed sand dunes at Naiman, surface erosion of the topsoil at Lanxi, and severe gully erosion resulting in badlands at Yuanmou.
2) No significant changes in areal extent of desertification were seen in any of the analyzed regions of Naiman, Lanxi, and Yuanmou. Land management around major settlements, roads, railway lines, etc., in all these regions was relatively meticulous and desert land was being reclaimed. However, in outlying regions new desert land was appearing, making it difficult to say that suitable land management was being practiced.
3) Indexes for natural vegetation, structures, and soil redness were used to give us an understanding of the conditions of desertification, and, combined with the results of past and present analyses, were very effective.
4) We evaluated the processes of desertification in Yuanmou Province, where gully erosion is prominent.

[Key Words]

Desertification, Remote Sensing, Eastern China, Active Dune