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Identification of important factors for water vapor flux and CO2 exchange in a cropland EI期刊论文
2010
作者:  Yu Qiang;  Li Jun
收藏  |  浏览/下载:24/0  |  提交时间:2012/06/11
Ecosystem water use efficiency in an irrigated cropland in the North China Plain EI期刊论文
2009
作者:  Yu Qiang;  Li Jun
收藏  |  浏览/下载:15/0  |  提交时间:2012/06/11
Analysis of spatial variability of nitrate content in groundwater and its factors in Huaitai county in North China plain EI期刊论文
2008
Chen Shu-Feng; Hu Ke-Lin; Liu Zhong-Lan; Li Wei; Pan Zhi-Yong; Zhang Jun-Lian
收藏  |  浏览/下载:9/0  |  提交时间:2012/06/11
Application of least squares vector machines in modelling water vapor and carbon dioxide fluxes over a cropland EI期刊论文
2005
作者:  Li Jun;  Yu Qiang
收藏  |  浏览/下载:24/0  |  提交时间:2012/06/11
Determination of the reasonable proportion of ecological water used of river ecological system EI期刊论文
2005
作者:  Xia Jun;  Zhan Che-Sheng;  Liu Su-Xia
收藏  |  浏览/下载:17/0  |  提交时间:2012/06/11
Modeling water and carbon fluxes above summer maize field in North China Plain with back-propagation neural networks EI期刊论文
2005
作者:  Li Jun;  Yu Qiang
收藏  |  浏览/下载:20/0  |  提交时间:2012/06/11


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