Effects of thinning treatments on soil available nitrogen of the poplar plantations in flooding land of Yangtze River
DUN Xingjian, QU Honghui, TIAN Ye, FANG Shengzuo, XU Xizeng
JOURNAL OF NANJING FORESTRY UNIVERSITY . 2013, (04): 45 -50 .  DOI: 10.3969/j.issn.1000-2006.2013.04.009