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浏览/检索结果: 共3条，第1-3条 帮助 限定条件 学科主题：Environmental Sciences    发表日期：2006     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择发表日期升序发表日期降序提交时间升序提交时间降序题名升序题名降序作者升序作者降序 Range-wide Yangtze freshwater dolphin expedition: The last chance to see Baiji? 期刊论文 ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2006, 卷号: 13, 期号: 6, 页码: 418-424 作者:  Wang, Kexiong;  Wang, Ding;  Zhang, Xianfeng;  Pfluger, August;  Barrett, Leigh 收藏  |  浏览/下载：88/5  |  提交时间：2010/10/13 Baiji (Lipotes vexillifer)  breeding population  conservation methods  semi-natural reserve  species protection  range-wide cetacean survey  Yangtze finless porpoise (Neophocaena phocaenoides asiaeorientalis)   Spatial variability of soil organic carbon in relation to environmental factors of a typical small watershed in the black soil region, northeast China 期刊论文 ENVIRONMENTAL MONITORING AND ASSESSMENT, 2006, 卷号: 121, 期号: 1-3, 页码: 597-613 作者:  Li, XY;  Wei, JB;  Xiao, DN;  Zhang, XY;  Li, XZ 收藏  |  浏览/下载：13/0  |  提交时间：2011/09/23 Black Soil Region Of Northeastern China  Geostatistics  Gis  Land Use  Soil Organic Carbon  Topographic Factors   Spatial variability of soil organic carbon in relation to environmental factors of a typical small watershed in the black soil region, northeast China 期刊论文 ENVIRONMENTAL MONITORING AND ASSESSMENT, 2006, 卷号: 121, 期号: 1-3, 页码: 597-613 Wei, JB; Xiao, DN; Zhang, XY; Li, XZ; Li, XY 收藏  |  浏览/下载：12/0  |  提交时间：2011/09/23 black soil region of northeastern China  geostatistics  GIS  land use  soil organic carbon  topographic factors