ͦˮֲ���I�B(y��ng)��ˮ�w�ă��Ч��о�

��r�g��2009-09-12 17:47 ��Դ�� : ��x��4283

ժ Ҫ����ˮ��B(t��i)�ޏͼ��g,��о��̫��Ҋ�İ˷N��ˮֲ���I�B(y��ng)��ˮ�w�ă��Ч��,��ͨ�^�҃�(n��i)ģ�M��Ҝy��,��˲�ͬ�N�ͦˮֲ�ˮ�h(hu��n)��|(zh��)��ĸ��,��Y��˷Nͦˮֲ��һ��ȥ��ˮ�w�п��ס��},��,��~�G��a,��^��l(f��)�F(xi��n)��ԇ��,��˷Nͦˮֲ��ȥ��׼��ϱ��F(xi��n)��o�@����P<0.05; �ڌ��}��ȥ��,��,��L܇�ݡ��ɞa��Ч��^��(y��u),��ڌ��ȥ��,��~�ݡ��,��L܇�ݵ�Ч��^��(y��u),��ȥ��ˮ�w��~�G��a ��ϣ��,��,��L܇�ݵ��^��C�϶��ָ��,��,��L܇��ڸ��F(xi��n)��^��̫��򸻠I�B(y��ng)��ˮ�w�ޏ̓�(y��u)��x�õ��N,��

�P�I�~��ͦˮֲ��,��,��~�G��,��,��ȥ��

0 ��

�S��ˮ��Ⱦ�ļӄ�,��ˌ��Ҹ�Ч�ͺĵ�ˮ��Ⱦ̎��g,20 ��o70 ��,ˮ��ֲ��_ʼ�ܵ��˂��Pע��ˮ�w�е��B(t��i)��ʹ��ˮ��Ⱦ��о��кܴ�đ��Ãrֵ[1],��һЩ�W��о��:ֲ��H��ͬ��ˮ�е�,��׵��Ⱦ��,��߀��B(t��i)ϵ�y(t��ng)΢��(sh��)��,�{(di��o)��M�ɽY��,��M��B(t��i)ϵ�y(t��ng)��ͷ��õ��M��,��[2~6],��ֲ��߀�п��Ч��[7]��,��ͦˮֲ��ǘ��˹��ֲ��ϵ�y(t��ng)��Ҫ��ֲ��,ͦˮֲ�ﲻ�H��ͬ��Ⱦ��Ĺ��,߀�Дr��,��^�V��Ⱦ��,�x��m��?sh��)�ͦˮֲ��ǘ��˹��غͻ֏��ؽ��Ȼ��ص��P�I��ʩ[1,8]��ͦˮֲ��ϵ�y(t��ng)��˹��Ȼ��س��(zh��n)��ˮ�Ķ��̎��,��I(y��)�Uˮ,��ꏽ��̎��[3]��˱��о��(j��)��[9]��{(di��o)�нY��,��x��˱��о��l��^�߼��^��о��ͦˮֲ��ķN�M�Ѓ��Ч��ԇ�,��y��Ӌ�㲻ͬͦˮֲ�N��P ��ȥ��Լ�ȥ��ˮ�w��~�G��,��˹��ؑ��ͦˮֲ��x��ṩ��Փ��(j��),��

1 ��Ϻͷ��

1.1 ��ԇ��

Ұ��ɼ��҇�̫��V��ֲ��8 �Nͦˮֲ��о��󣬷քe�飺��(Thaliadealbata),��ȹ�(Sagittaria sagittifolia Linn),�� (Typha orientalis Presl) ��~��(Pontederialanceolota) ,��ˮ�[(Scripus validus Vahl) ,��ɯ��(Egypean Papyrus) ��L܇��(Cyperusalterniafolius Linn),��ɞa(Alisma Plant agoaquatica Linn),��ԇ��50cm×30cm×50cm �Ĳ��ף�ԇ�ˮλ35cm,��ԇ�ˮ�wȡ��Ͼ��О��?zh��)�,��ˮ�|(zh��)��rҊ��1��

1.2 ԇ��OӋ

��ԇ��2006 ��5 ��ڜ��҃�(n��i)�M��,��ԇ��_ʼǰ,��ԇֲ��D�ӵ��B(y��ng)��(n��i)��Hoaglands’ cultivation solution (0.01X)�I�B(y��ng)Һ�Z��һ��,��ԇ�ˮ�w��Գ��긻�I�B(y��ng)��Ͼ��О��?zh��)�,��ԇ��׵ײ��?.5kg ��s��1cm ��ѵ[ʯ��ڹ̶�ֲ��ÿ��52L �Ğ��?zh��)�ԭˮ,��ֲ��С��ͦˮֲ�?5g(±0.5g),��ԇ��O3 ��؏ͣ�8 ��̎��(1) ��,��(2) �ȹ�,��(3) ��,��(4) ��~�ݣ�(5) ˮ�[,��(6) ��ɯ��; (7) �L܇��;(8) �ɞa,��ԇ��_ʼ��7 �죬�Ĳ��ײɼ�ˮ��100mL,��y��,��ס��},��~�G��a,��

1.3 �y��

��ָ�˜y��Ç��˷��wҊ��2,��

1.4 Ӌ�㹫ʽ

��c��ԇ�ˮ�w��Ⱦ��ӵĳ�ʼֵ(mg/L)
       c��ԇ�ˮ�w��Ⱦ��ڵ�7��r�Ĝy��ֵ(mg/L)
       w��ͦˮֲ��r�أ�g��
       t��r�g�g��7(d)
       52��(n��i)ˮ�w�w�e(L)

1.5 ��(sh��)��(j��)��

��؏��,��ԇ򞔵(sh��)��(j��)��ƽ��(sh��)±�˜��`��ʾ(Mean±SD)��ʾ��Æ��ط��͆΂�t �z򞷨��M�g��(sh��)��(j��)�M�в��@��,��P��0.05 ��J���@��,��

2 �Y��cӑՓ

2.1 ��׵�ȥ��ʱ��^

ͨ�^��ҷ��y��ԇ�ˮ�w�п��,��}��,��չ�ʽӋ�㲻ͬͦˮֲ���ס��}��ȥ��,�,��װ��w��B(t��i)�׺��ܽ�B(t��i)��,��е��w��B(t��i)��ױ�ͦˮֲ��l(f��)�_�ĸ�ϵ��,��յ��r��ȥ��Ч��ɈD1 ��Կ��,��8 �Nͦˮֲ�ˮ�w�п��׾��^��ȥ��,��ҟo�@����P<0.05��86.75%�c93.37%֮�g,��ڌ��}��ȥ��Ч��,��ֲ��N�g��@����P<0.05��L܇�ݵ�Ч��(y��u),��72.38%,��Ξ��͝ɞa��քe�飺68.90%��60.57%,��L܇��ȥ��}��Ч��ڱ�ԇ��мs�鼈ɯ�ݺ��~�ݵ�2 ��,��

2.2 ��ȥ��ʱ��^

�ɈD2 ��Կ��˷Nͦˮֲ��ܰl(f��)�]�^��ȥ��Ч��,��ҟo�@��(P��0.05),��ȥ��Ч�ʾ��84.75%��,��ˮƽ[11]��о��l(f��)�F(xi��n)��ѝ��ļ��ȥ��96%��ϡ,��Ҫ�M�ɳɷֳ��߀�а��,��^ȥ��о��У��Ј��ˮ��ֲ��ļ��ȥ��ؕ�I�^С,��Ч����[12],��ԇ�ˮ�w�а��ڿ��M��ռ�^��أ��һ��̶��ό��ֲ��N�g��ȥ��ʵğo�@��,��

�y�㌦��ȥ��ʽY��@ʾ,��ȹõ�Ч��ѣ��79.69%,��@��֮��L܇��(P��0.05),��ѡ�ˮ�[,��ɯ��ڌ��ȥ��Ч��ϟo�@��(P��0.05),��55.02%��59.38%��֮�g��@��ĝɞa(P��0.05),��@�f��,��ȥ��cֲ��ϵ�y(t��ng)��ͬ��Ⱦ��ֲ��ϵ΢��/��P��8 �Nͦˮֲ��ķN�g���Ч�ʲ�ͬ,��ϵ��΢��ṩ�ĭh(hu��n)��ͬ,��˲�ͬͦˮֲ��̎��ˮ�w��ȥ��Ч�ʲ�ͬ��

2.3 ��ܽ��h(hu��n)��ĸ��Ƽ��~�G��a ��ȥ��^

�y��ˮ�w��ԇ��_ʼǰ��~�G��a ��ʼֵ�Լ�7 ��ıO(ji��n)�yֵ,��չ�ʽӋ�㲻ͬͦˮֲ��~�G��a ��ȥ��,��L�ƈD3��

��ĳ��о��ˠI�B(y��ng)��֮��ˮ��ֲ��ˮ�|(zh��)��߀��F(xi��n)�ڌ��ĸ��[13],��~�G��Ҫ�ĽM�ɳɷ�֮һ,��е����~�G��a��ȵĶ��Ǳ��B(y��ng)��Ҫָ��[14],��˿�ͨ�^�y��ˮ�w��~�G��a ��ˮ�w�е��F(xi��n)��,��u�r��I�B(y��ng)��̶�[15]��ԇ��,��8 �N��ͬͦˮֲ��ڌ��~�G��a ��ȥ��Ч��,��ɞa����@��7 �Nֲ��(P��0.05)��0.26μg chla /d.g FW,��Ξ��,��ȹá��,��L܇��,��ߟo�@��(P��0.05),��ɯ�ݡ�ˮ�[ȥ��~�G��a ��ڱ�ԇ��О�ֵؓ,��քe��-0.16μgchla /d.g FW ��-0.82μg chla /d.g FW,��~�G��a ȥ��c��,��,��}ȥ��ʷքe��P�Է��Y��@ʾ��o��õ��P�Pϵ,��

3 �YՓ

�о��Y��8 �Nͦˮֲ��г��ˮ�[�ͼ�ɯ��ڌ��~�G��a ��ȥ��ϱ��F(xi��n)��ֵؓ��,��r��һ��̶��ϸ��ˮ�h(hu��n)��|(zh��)��8 �Nͦˮֲ��ȥ��׼��ϱ��F(xi��n)��o�@��,��P<0.05; �ڌ��}��ȥ��,��L܇��,��ɞa��Ч��@��(y��u)��ֲ��,��ڌ��ȥ��ϣ��~��,��,��L܇�ݵ�Ч��^��(y��u)��ȥ��ˮ�w��~�G��a ��,��,��ѡ��L܇�ݱ��F(xi��n)�^��,��^��l(f��)�F(xi��n),��L܇��ڸ��F(xi��n)��^��,��Ը��Ч��ޏ͸��I�B(y��ng)��ˮ�w,��

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