Carbon dioxide, methane, and nitrous oxide exchanges in an age‐sequence of temperate pine forests

Abstract We investigated soil carbon dioxide (CO 2 ), methane (CH 4 ), and nitrous oxide (N 2 O) exchanges in an age‐sequence (4, 17, 32, 67 years old) of eastern white pine ( Pinus strobus L.) forests in southern Ontario, Canada, for the period of mid‐April to mid‐December in 2006 and 2007. For both CH 4 and N 2 O, we observed uptake and emission ranging from −160 to 245 μg CH 4 m −2 h −1 and −52 to 21 μg N 2 O m −2 h −1 , respectively …