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[期刊论文] 作者:Togtohyn Chuluun,Dennis OJIMA, 来源:中国科学C辑 年份:2004
Dramatic changes in land use have occurred in arid and semi-arid landsof Asia during the 20th century. Grassland conversion into croplands and ecosystem degrada...
[期刊论文] 作者:王艳芬,纪宝明,陈佐忠,Dennis OJIMA,, 来源:植物生态学报 年份:2000
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