��B�VҺ��ܽ��ЙC(j��)�|(zh��)�о��M(j��n)չ

��r(sh��)�g��2012-10-12 09:18 ��Դ�� : ��x��2379

�ܽ��ЙC(j��)�|(zh��)(Dissolved organic matter�� DOM)ָ��(j��ng)�^0.45umĤ�^�V��,��Ա��ˮ�w�е��ЙC(j��)�|(zh��),��B�VҺ�е��ܽ��ЙC(j��)�|(zh��)��Դ�� ЙC(j��)�|(zh��)��ｵ�⣬��B�VҺ��ܽ��ЙC(j��)�|(zh��)ռ��ЙC(j��)�|(zh��)��85%��,��ɝB�VҺ̎��ˇ��ˮCOD�^�ߵ��Ҫԭ��,��ͨ��B�VҺ�е�DOM�ɷ֞鸯ֳ��(Humic acids,��HA),�� (Fulvic acids��F(xi��n)A)��Hˮ��ЙC(j��)�|(zh��)(Hydrophilic or— ganic matter,��HyI)��N�ɷ�,��и�ֳ��͸�� y(t��ng)�Q�鸯ֳ�|(zh��)(Humic substances��HS),��

��ֳ�|(zh��)�ǏV��,��ˮ�w�ȭh(hu��n)��е�һ �(f��)�s�ġ��(w��n)��ЙC(j��)�߷��ӻ��,��ɫ��Sɫ�� ɫ,��Դ��M�ɺͽY(ji��)��(g��u)ʮ�֏�(f��)�s,��һ��ԏĎװٵ��ϰ��f(w��n),��һ��J(r��n)�鸯ֳ�|(zh��)�Ǆ�(d��ng)ֲ�� ΢��?b��o)w(��ľ�|(zh��)��)��Ȼ�h(hu��n)��н�(j��ng)ø�ֽ⡢ ��΢��ϳɵȲ�ͬ��(y��ng)��^��ݻ�� ,��ڴ_�е��γəC(j��)��,��д��ڠ�(zh��ng)Փ��(j��)��ֳ �|(zh��)��A��Һ�е��ܽ��r�ɷ֞飺��ֳ��,�� ͺ��,��pH��2�ėl��ˮ�Ğ� ��ֳ�ᣬ��κ�pH�l��¶��ˮ��Ǹ��,��ˮ�Ğ��,��ͨ��ӑՓ��ˮ��Ը�ֳ�|(zh��)��Ҫָ��ֳ��͸��ᴨ��

��B�VҺ��ܽ��ЙC(j��)�|(zh��)��,��һ�� 60%��Ҹ�ֳ�|(zh��),��ͬ�؅^(q��)��ͬ��g,��ͬ��Դ�B�VҺ��DOM�ĽM�ɲ�e�^��,��B �VҺ�ĸ��N̎��ˇ�У��(du��)DOM��ɷֵ�̎��Ч ��һ,��(du��)�ͷ��,��ֳ��̶��^�ߵĸ��̎�� Ч��Ȟ��,��(du��)ͬһ�M�ֲ�ͬ��DOM̎�� Ч��Ҳ��^����,��о��B�VҺ�� DOM�ĽM�ֺ͸��M�ַ��ֲ��,��(du��)�ڷ�ӳ�� (ch��ng)�ķ�(w��n)��̶Ⱥ��x��m�ĝB�VҺ̎��ˇ�� Ҫ��ָ��(d��o)��x,��

Ŀǰᘌ�(du��)��(ch��ng)�B�VҺ��ܽ��ЙC(j��)�|(zh��)��о� ��Ҫ��DOM�ĽM�ɽY(ji��)��(g��u)��S��r(sh��)�g��׃ ��Ҏ(gu��)��,��ͨ�^�y(c��)��M�ֵķ��ֲ��Ԫ�ؽM�� ͹��V��ʾ�仯�W(xu��)�Y(ji��)��(g��u)��,��

Ԕ��(x��)��(n��i)��Ո(q��ng)�鿴��֣�

����D(zhu��n)�d��ǳ��ڂ��f��Ϣ֮Ŀ�ġ��Ё�Դ��(bi��o)ע�e(cu��)�`��ַ��ĺϷ��(qu��n)��,��Ո(q��ng)��߳֙�(qu��n)��C��c��W(w��ng)(li��n)ϵ,��҂��r(sh��)��h��,��x�x,��