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浏览/检索结果: 共9条，第1-9条 帮助 限定条件 发表日期：2011    内容类型：SCI/SSCI论文     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 Effect of agricultural land use changes on soil nutrient use efficiency in an agricultural area, Beijing, China SCI/SSCI论文 2011 作者:  Li Q.;  Li Q. 收藏  |  浏览/下载：16/0  |  提交时间：2012/06/08 agricultural land use  soil nutrient absorption rate (NAR)  soil  nutrient use economic efficiency ratio (NEER)  soil property  environmental effect  organic-carbon stock  cropping systems  loess plateau  north china  water-quality  nitrogen  tillage  sequestration  plain  phosphorus   CAN POTENTILLA FRUTICOSA LINN. SHRUBS FACILITATE THE HERB LAYER OF HEAVILY GRAZED PASTURE ON THE EASTERN TIBETAN PLATEAU? SCI/SSCI论文 2011 Li P. X.; Krusi B. O.; Li S. L.; Cai X. H.; Yu F. H. 收藏  |  浏览/下载：14/0  |  提交时间：2012/06/08 facilitation  high-altitude grassland  natural fence  overgrazing  plant-plant interactions  small-scale vegetation pattern  plant-communities  competition  alpine  recruitment  grass  neighbors  steppe   Impacts of land use and plant characteristics on dried soil layers in different climatic regions on the Loess Plateau of China SCI/SSCI论文 2011 Wang Y. Q.; Shao M. A.; Zhu Y. J.; Liu Z. P. 收藏  |  浏览/下载：22/0  |  提交时间：2012/06/08 Climate drought  Regional vegetation restoration  Soil desiccation  Soil  moisture  Spatial variability  spatial variability  water-balance  moisture  vegetation  drought  desiccation  forest  model  conservation  depletion   Effect of environmental factors on regional soil organic carbon stocks across the Loess Plateau region, China SCI/SSCI论文 2011 Liu Z. P.; Shao M. A.; Wang Y. Q. 收藏  |  浏览/下载：32/0  |  提交时间：2012/06/08 Soil organic carbon density  Environmental factors  Geostatistics  Spatial pattern  Land-use  land-use  climate-change  geographical-distribution  nitrogen-fertilizer  spatial variability  chemical-properties  agricultural soils  vegetation type  sequestration  matter   Persistent soil seed banks along altitudinal gradients in the Qilian Mountains in China and their significance for conservation management SCI/SSCI论文 2011 Li Q. Y.; Fang H. Y.; Cai Q. G. 收藏  |  浏览/下载：54/0  |  提交时间：2012/06/08 Soil seed bank  seed density  altitudinal gradients  slopes  conservation  buried viable seeds  coniferous plantations  standing vegetation  ranunculus-adoneus  seasonal-variation  disturbance  heathland  restoration  communities  grasslands   Effects of row spacing on soil water and water consumption of winter wheat under irrigated and rainfed conditions SCI/SSCI论文 2011 Zhou X. B.; Chen Y. H.; Ouyang Z. 收藏  |  浏览/下载：15/0  |  提交时间：2012/06/08 evapotranspiration  harvest index  crop yield  dry matter  water use  efficiency  use efficiency  grain-yield  root-growth  management  system  china  india  density  region  l.   Effects of afforestation on soil carbon turnover in China's subtropical region SCI/SSCI论文 2011 Wang S. Q.; Liu J. Y.; Zhang C.; Yi C. X.; Wu W. X. 收藏  |  浏览/下载：12/0  |  提交时间：2012/06/08 soil organic carbon  stable carbon isotope  plantation forest  organic-matter dynamics  isotope ratios  delta-c-13 values  vegetation  change  southeast brazil  land-use  forest  climate  sequestration  decomposition   Spatio-temporal changes of NDVI and its relation with climatic variables in the source regions of the Yangtze and Yellow rivers SCI/SSCI论文 2011 Yang Z. P.; Gao J. X.; Zhou C. P.; Shi P. L.; Zhao L.; Shen W. S.; Ouyang H. 收藏  |  浏览/下载：15/0  |  提交时间：2012/06/08 source regions of the Yangtze and Yellow rivers  NDVI  spatio-temporal  change  temperature  precipitation  shallow ground temperature  carbon storage  vegetation  permafrost  tundra  thermokarst  dynamics  nutrient  impact  china   The effects of land use on soil N mineralization during the growing season on the northern Loess Plateau of China SCI/SSCI论文 2011 Wei X. R.; Shao M. A.; Fu X. L.; Agren G. I.; Yin X. Q. 收藏  |  浏览/下载：12/0  |  提交时间：2012/06/08 Ammonification  Chinese Pine woods  Grassland  Korshinsk Peashrub land  Nitrification  The northern Loess Plateau  mojave desert ecosystem  nitrogen mineralization  terrestrial  ecosystems  temperate grassland  dynamics  forest  carbon  transformations  plantations  pine