TY - JOUR A1 - Archibald, S. A. A1 - Kirton, A. A1 - van der Merwe, M. R. A1 - Scholes, R. J. A1 - Williams, C. A. A1 - Hanan, N. T1 - Drivers of inter-annual variability in Net Ecosystem Exchange in a semi-arid savanna ecosystem, South Africa JO - Biogeosciences J1 - BG VL - 6 IS - 2 SP - 251 EP - 266 Y1 - 2009/02/24 PB - Copernicus Publications SN - 1726-4189 UR - https://bg.copernicus.org/articles/6/251/2009/ L1 - https://bg.copernicus.org/articles/6/251/2009/bg-6-251-2009.pdf DO - 10.5194/bg-6-251-2009 ER -