不同杨农复合经营模式土壤有机碳和全氮含量垂直分布及储量研究
李海玲,,陈乐蓓,方升佐*
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*
南京林业大学学报(自然科学版) . 2010, (02): 125 -128 .  DOI: 10.3969/j.jssn.1000-2006.2010.02.029