分面浏览：发表日期 |
| 当前检索式 | ((ALL：environmental changes)) |
| 限定条件 | 无 |
| 2024 53 | 2023 132 | 2022 246 |
| 2021 543 | 2020 752 | 2019 900 |
| 2018 826 | 2017 793 | 2016 837 |
| 2015 669 | 2014 480 | 2013 469 |
| 2012 405 | 2011 391 | 2010 465 |
| 2009 383 | 2008 308 | 2007 231 |
| 2006 232 | 2005 188 | 2004 120 |
| 2003 128 | 2002 56 | 2001 43 |
| 2000 27 | 1999 21 | 1998 17 |
| 1997 18 | 1996 22 | 1995 9 |
| 1994 4 | 1993 3 | 1992 6 |
| 1991 3 | 1990 1 | 1989 1 |
| 1985 1 | 1983 1 | 1905 1 |
