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浏览/检索结果: 共7条，第1-7条 帮助 限定条件 内容类型：EI期刊论文     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 Quantifying climate and management effects on regional crop yield and nitrogen leaching in the north china plain EI期刊论文 2013 作者:  Yu Q.;  Ma L.;  Ma L. 收藏  |  浏览/下载：24/0  |  提交时间：2014/12/31 Leaching  Crops  Grain (agricultural product)  Irrigation  Nitrogen  Plants (botany)  Soil moisture  Water levels  Water management   Winter cover crop effects on nitrate leaching in subsurface drainage as simulated by RZWQM-DSSAT EI期刊论文 2008 作者:  Yu Q.;  Ma L.;  Ma L. 收藏  |  浏览/下载：19/0  |  提交时间：2012/06/11 Concentration (process)  Crops  Cultivation  Drainage  Fertilizers  Grain (agricultural product)  Groundwater flow  Leaching  Magnesium printing plates  Natural water geochemistry  Nitrates  Rotation  Security of data  Waste disposal  Wast   Observation and modeling of NPP for Pinus elliottii plantation in subtropical China EI期刊论文 2008 作者:  Wang Huimin;  Ma Zeqing 收藏  |  浏览/下载：30/0  |  提交时间：2012/06/11 Biological materials  Biomass  Estimation  Renewable energy resources   Ecological water requirement of irrigated region in Tongzhou District of Beijing based on GIS technique EI期刊论文 2007 Pan Xingyao; Liu Honglu; Li Fahu; Ma Ming 收藏  |  浏览/下载：9/0  |  提交时间：2012/06/11 Dating of erosion surface and terraces in the eastern Qilian Shan, northwest China EI期刊论文 2007 Pan Baotian; Gao Hongshan; Wu Guangjian; Li Jijun; Li Bingyuan; Ye Yuguang 收藏  |  浏览/下载：13/0  |  提交时间：2012/06/11 Geochronology  Geomorphology  Landforms  Sedimentation  Stratigraphy   Monitoring forest dynamics using satellite imagery - A case study in the natural reserve of Changbai Mountain in China EI期刊论文 2005 作者:  Ma Ze-Qing 收藏  |  浏览/下载：8/0  |  提交时间：2012/06/11 Global warming  Light reflection  Parameter estimation  Plants (botany)  Remote sensing  Vegetation   Considerable effects of diversity indices and spatial scales on conclusions relating to ecological diversity EI期刊论文 2005 Yue Tian Xiang; Ji Yuan Liu; Zheng Qing Li; Si Qing Chen; Sheng Nan Ma; Yong Zhong Tian; Ge Feng 收藏  |  浏览/下载：24/0  |  提交时间：2012/06/11 Biodiversity  Biomass  Ecosystems