²é¿´: 822  |  »Ø¸´: 10
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

ÎÞºÛÀáÑÄ

ľ³æ (Ö°Òµ×÷¼Ò)

[½»Á÷] Ò»¾ä»°·­Òë ÒÑÓÐ2È˲ÎÓë

Vegetation buffers the stream from direct waste input and assimilates the nutri-ents into plant tissue,ʲôÒâ˼£¬Ë­ÖªµÀ°¡

[ Last edited by zhtear99 on 2013-7-16 at 18:39 ]
»Ø¸´´ËÂ¥
ѧº£ÎÞÑÄ
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

 Äˆ?

Ìú¸Ëľ³æ (Ö°Òµ×÷¼Ò)

Ժʿ

Ö²±»»º³å´ÓÖ±½Ó·ÏÎïÊäÈëÁ÷ºÍͬ»¯ÈëÖ²Îï×éÖ¯µÄÓªÑøÐèÇó
ÎÒ¾ÍÊÇÎÒ
11Â¥2013-05-04 11:16:19
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 11 ¸ö»Ø´ð

С²Ý5559

½ð³æ (ÕýʽдÊÖ)

¡ï
hanches: ½ð±Ò+1, ¸ÐлӦÖú£¬BB½±ÀøÏÂ~~~ 2013-04-22 19:07:38
Ö²±»¿ÉÒÔ»º³å/¼õ»ºÖ±½Ó×¢ÈëµÄÎÛË®Á÷£¬¶øÇÒ¿ÉÒÔ½«Ñø·Öͬ»¯Èë±¾ÉíµÄÖ²±»×éÖ¯ £¨nutri-ents ÊǸö»»Ðаɣ¬Ó¦¸ÃÊÇnutrients)
ÃÎÏëÕâ¸ö¶«Î÷£¬Ö»ÒªÄãÏëȥŬÁ¦£¬Ê²Ã´Ê±ºò¶¼²»Íí
2Â¥2013-04-22 15:17:14
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ÎÞºÛÀáÑÄ

ľ³æ (Ö°Òµ×÷¼Ò)

ÒýÓûØÌû:
2Â¥: Originally posted by С²Ý5559 at 2013-04-22 15:17:14
Ö²±»¿ÉÒÔ»º³å/¼õ»ºÖ±½Ó×¢ÈëµÄÎÛË®Á÷£¬¶øÇÒ¿ÉÒÔ½«Ñø·Öͬ»¯Èë±¾ÉíµÄÖ²±»×éÖ¯ £¨nutri-ents ÊǸö»»Ðаɣ¬Ó¦¸ÃÊÇnutrients)

лл£¬ºÃÏñÊÇÕâ¸öÒâ˼
ѧº£ÎÞÑÄ
3Â¥2013-04-22 15:37:57
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ÎÞºÛÀáÑÄ

ľ³æ (Ö°Òµ×÷¼Ò)

Gary et al. (1983) evaluated the effects on a small stream  in central Colorado of spring cattle grazing on pastures.ÔÙ·­Òëһϣ¬²»Ê¤¸Ð¼¤
ѧº£ÎÞÑÄ
4Â¥2013-04-22 15:39:02
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û