主题：【已应助】求文献4个！

【序号】：1
【作者】：Atul Jain
【题名】：Nitrogen attenuation of terrestrial carbon cycle response to global environmental factors
【期刊】： Global Biogeochem Cycles
【年、卷、期、起止页码】：GB4028, doi:10.1029/2009GB003519
【全文链接】： http://www.agu.org/pubs/crossref/2009/2009GB003519.shtml

【序号】：2
【作者】：Matthew R Opdyke
【题名】：Evidence for the predominance of denitrification as a source of N2O in temperate agricultural soils based on isotopologue measurements
【期刊】： Global Biogeochem Cycles
【年、卷、期、起止页码】：GB4018, doi:10.1029/2009GB003523
【全文链接】： http://www.agu.org/pubs/crossref/2009/2009GB003523.shtml


【序号】：3
【作者】：Galina Churkina
【题名】：Synergy of rising nitrogen depositions and atmospheric CO2 on land carbon uptake moderately offsets global warming
【期刊】： Global Biogeochem Cycles
【年、卷、期、起止页码】：GB4027, doi:10.1029/2008GB003291
【全文链接】： http://www.agu.org/pubs/crossref/2009/2008GB003291.shtml


【序号】：4
【作者】：A F Bouwman
【题名】：  Human al teration of the global nitrogen and phosphorus soil balances for the period 1970-2050
【期刊】： Global Biogeochem Cycles
【年、卷、期、起止页码】：GB0A04, doi:10.1029/2009GB003576
【全文链接】： http://www.agu.org/pubs/crossref/2009/2009GB003576.shtml