Research on Phosphorus Runoff Losses from Paddy Soils in the Taihu Lake Region and Its Olsen-P "Change-point"
ZHANG Huan-chao~1,ZHANG Hong-ai~(1,2),CAO Zhi-hong~3
JOURNAL OF NANJING FORESTRY UNIVERSITY . 2004, (05): 6 -10 .  DOI: 10.3969/j.jssn.1000-2006.2004.05.002