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DYNAMIC ECOLOGICAL PERFORMANCE ASSESSMENT ON EARLY PLANT RECLAMATION IN COAL GANGUE YARD WITH PCA AN
[会议论文] 作者：Jing Hao,Yudan Xu,Donggang Guo,
来源：北京师范大学 年份：2016
The five-year dynamics of the plant-soil system were monitored in the coal gangue yard at Sima Coal Mine of Luan Group,Changzhi,Shanxi,China,from 2009 to 2013.The fixed plots were established to use s...
[会议论文] 作者：Wei Zhang,Xiong Xiong,Jing Hao,Feng HE,
来源：中国系统工程学会第19届学术年会 年份：2016
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[会议论文] 作者：Jing Hao,Feng HE,Wei Zhang,Xiong Xiong,
来源：中国系统工程学会 年份：2016
This research focused on the effect of institutional analyst recommendation revision in China.Event study is applied for this research and two statistical approach of market model and market adjust mo...
[会议论文] 作者：Houjuan Song,Yudan Xu,Jing Hao,Bingqing Zhao,Donggang Guo,
来源：北京师范大学 年份：2016
The spatial distribution of species is a major content of forest resource survey.Studying spatial distribution of species can provide important insights into potential ecological processes and mechani...
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