Vertical distribution and storage of soil organic carbon and nitrogen in different poplar crop intercropping patterns
LI Hailing,, CHEN Lebei, FANG Shengzuo*
JOURNAL OF NANJING FORESTRY UNIVERSITY . 2010, (02): 125 -128 .  DOI: 10.3969/j.jssn.1000-2006.2010.02.029