TY - JOUR A1 - Zhang, F. A1 - Li, C. A1 - Wang, Z. A1 - Wu, H. T1 - Modeling impacts of management alternatives on soil carbon storage of farmland in Northwest China JO - Biogeosciences Discuss. J1 - BGD VL - 3 IS - 3 SP - 409 EP - 447 Y1 - 2006/05/16 PB - Copernicus Publications SN - 1810-6277 UR - http://www.biogeosciences-discuss.net/3/409/2006/ L1 - http://www.biogeosciences-discuss.net/3/409/2006/bgd-3-409-2006.pdf ER -