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浏览/检索结果: 共12条，第1-10条 帮助 限定条件 发表日期：2008    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 Land use changes and their relations with carbon cycles over the past 300 a in China EI期刊论文 2008 作者:  Ge Quansheng;  He Fanneng;  Dai Junhu 收藏  |  浏览/下载：20/0  |  提交时间：2012/06/11 Biomass  Carbon  Forestry  Vegetation   Climate, agricultural production and hydrological balance in the North China Plain EI期刊论文 2008 作者:  Yu Qiang;  Xia Jun 收藏  |  浏览/下载：26/0  |  提交时间：2012/06/11 Biochemical oxygen demand  Climate change  Crops  Ecosystems  Evapotranspiration  Grain (agricultural product)  Groundwater  Hydrogeology  Irrigation  Plants (botany)  Range finding  Underground reservoirs  Water conservation  Water supply   Effects of water application intensity, drop size and water application amount on the characteristics of topsoil pores under sprinkler irrigation EI期刊论文 2008 作者:  Jiang Shufang 收藏  |  浏览/下载：16/0  |  提交时间：2012/06/11 Drops  Image analysis  Porosity  Sprinkler systems (irrigation)   Development and problems of crop models EI期刊论文 2008 作者:  Luo Yi 收藏  |  浏览/下载：12/0  |  提交时间：2012/06/11 Spatiotemporal variations of vegetation cover on the Chinese Loess Plateau (1981-2006): Impacts of climate changes and human activities EI期刊论文 2008 Xin Zhongbao; Xu Jhiongxin; Zheng Wei 收藏  |  浏览/下载：20/0  |  提交时间：2012/06/11 Atmospheric temperature  Cultivation  Ecology  Precipitation (meteorology)  Vegetation   Effect of saline water on tomato growth and yield by drip irrigation in semi-humid regions of north China EI期刊论文 2008 作者:  Liu Shiping;  Wan Shuqin;  Kang Yuehu 收藏  |  浏览/下载：21/0  |  提交时间：2012/06/11 Influence of high-fluorine environmental background on crops and human health in hot spring-type fluorosis-diseased areas EI期刊论文 2008 作者:  Wang Wuyi 收藏  |  浏览/下载：13/0  |  提交时间：2012/06/11 Agricultural products  Crops  Groundwater  Health  Health risks  Hot springs  Potable water  Soils  Springs (components)  Water analysis   Characteristics of soil salinity and salt ions distribution in salt-affected field under mulch-drip irrigation in different planting years EI期刊论文 2008 作者:  Kang Yuehu 收藏  |  浏览/下载：16/0  |  提交时间：2012/06/11 Effect of soil matric potential on the distribution of soil salt under drip irrigation on saline and alkaline land in arid regions EI期刊论文 2008 作者:  Wan Shuqin;  Kang Yuehu 收藏  |  浏览/下载：25/0  |  提交时间：2012/06/11 Effects of drip irrigation with saline water on tomato water use and soil salinity in semi-humid regions of North China EI期刊论文 2008 作者:  Kang Yuehu;  Liu Shiping;  Wan Shuqin 收藏  |  浏览/下载：14/0  |  提交时间：2012/06/11