分面浏览：发表日期 |
| 当前检索式 | ((ALL：methane activity)) |
| 限定条件 | 无 |
| 2024 1 | 2023 5 | 2022 8 |
| 2021 14 | 2020 30 | 2019 51 |
| 2018 51 | 2017 43 | 2016 50 |
| 2015 43 | 2014 39 | 2013 51 |
| 2012 37 | 2011 38 | 2010 110 |
| 2009 34 | 2008 46 | 2007 36 |
| 2006 31 | 2005 34 | 2004 27 |
| 2003 29 | 2002 25 | 2001 23 |
| 2000 16 | 1999 4 | 1998 19 |
| 1997 13 | 1996 5 | 1995 7 |
| 1994 5 | 1993 5 | 1992 3 |
| 1991 1 | 1990 2 | 1985 1 |
