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浏览/检索结果: 共5条，第1-5条 帮助 限定条件 内容类型：其他     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 The accumulation of heavy metals in agricultural land and the associated potential ecological risks in Shenzhen, China 其他 2016-01-01 Wu, Jiansheng; Song, Jing; Li, Weifeng; Zheng, Maokun 收藏  |  浏览/下载：4/0  |  提交时间：2017/12/04 Soil heavy metals  Agricultural topsoil  Potential ecological risk  Principal component analysis  Pollution sources  Shenzhen, China  SPATIAL-DISTRIBUTION  SOILS  POLLUTION  SEDIMENTS  URBAN  INDEX  GEOSTATISTICS  TOPSOILS  SAMPLES  CROPS   ANALYSIS ON TEMPORAL-SPATIAL CHANGE OF VEGETATION COVERAGA IN HULUNBUIR STEPPE (2000-2014) 其他 2016-01-01 Peng, Fei; Fan, Wenjie; Xu, Xiru; Liu, Xing 收藏  |  浏览/下载：5/0  |  提交时间：2017/12/03 Hulunbuir Steppe  Vegetation coverage time-series  climatic factors  break-points  correlation   Measurements Beyond River Health : Water Sustainability Assessment and River Sustainability Index 其他 2015-01-01 Wu Huijuan; Darton, Richard C.; Borthwick, Alistair G. L.; Ni Jinren 收藏  |  浏览/下载：11/0  |  提交时间：2017/12/03 sustainable assessment  sustainability index  river health  measurements   Analyzing qualitative and quantitative changes in coastal wetland associated to the effects of natural and anthropogenic factors in a part of Tianjin, China 其他 2010-01-01 Xie, Zhenglei; Xu, Xuegong; Yan, Lei 收藏  |  浏览/下载：2/0  |  提交时间：2015/11/10 wetland change  remote sensing  natural and anthropogenic factors  Tianjin  LAND-COVER CHANGES  MEDITERRANEAN SEA  LANDSCAPE CHANGE  TM IMAGERY  CLASSIFICATION  IMPACTS  LAGOON  DEGRADATION  DETECT  GIS   Monitoring and evaluation of desertification in Shihezi area using Landsat TM imagery 其他 2009-01-01 Jiang, Miao; Zhang, Xianfeng; Tong, Qingxi 收藏  |  浏览/下载：2/0  |  提交时间：2015/11/13