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　　輪葉黑藻的水(shui)體(ti)凈(jing)化價值

　　通過(guo)比較(jiao)在(zai)(zai)不同(tong)梯度(du)(du)營(ying)(ying)養鹽濃度(du)(du)下(xia),沉水植物輪葉(xie)黑藻(zao)對水體(ti)中(zhong)(zhong)氮(dan)、磷(lin)的(de)(de)(de)清理(li)(li)能力,研究得出:在(zai)(zai)不同(tong)營(ying)(ying)養條(tiao)件(jian)下(xia),輪葉(xie)黑藻(zao)對水體(ti)中(zhong)(zhong)總(zong)磷(lin)(TP)均有較(jiao)好(hao)的(de)(de)(de)清理(li)(li)效(xiao)果(guo),總(zong)氮(dan)(TN)處理(li)(li)濃度(du)(du)較(jiao)高(gao)(15 mg/L)時,輪葉(xie)黑藻(zao)對水體(ti)中(zhong)(zhong)的(de)(de)(de)TN也(ye)有較(jiao)好(hao)的(de)(de)(de)清理(li)(li)效(xiao)果(guo);在(zai)(zai)固定的(de)(de)(de)濃度(du)(du)范(fan)圍內,輪葉(xie)黑藻(zao)的(de)(de)(de)凈化效(xiao)果(guo)隨水體(ti)中(zhong)(zhong)氮(dan)、磷(lin)等物質含(han)量增加而(er)增大(da),輪葉(xie)黑藻(zao)是一(yi)種很好(hao)的(de)(de)(de)水體(ti)凈化植物,在(zai)(zai)一(yi)些富營(ying)(ying)養化的(de)(de)(de)水體(ti)中(zhong)(zhong)可(ke)以適當配置輪葉(xie)黑藻(zao)進行生態修理(li)(li)。

　　水(shui)(shui)體(ti)(ti)(ti)富(fu)營(ying)(ying)養(yang)(yang)化是水(shui)(shui)污(wu)染中(zhong)(zhong)的(de)一(yi)個(ge)突(tu)出(chu)問題,目(mu)前(qian),很多國家都在廣(guang)泛應用(yong)生(sheng)(sheng)(sheng)物(wu)(wu)(wu)處(chu)理措(cuo)施凈化污(wu)水(shui)(shui)。經過(guo)多年的(de)探索(suo),人們意識到利用(yong)高等水(shui)(shui)生(sheng)(sheng)(sheng)植(zhi)(zhi)(zhi)物(wu)(wu)(wu)凈化受污(wu)染的(de)水(shui)(shui)體(ti)(ti)(ti)是一(yi)種低成本的(de)生(sheng)(sheng)(sheng)物(wu)(wu)(wu)工程技術。水(shui)(shui)生(sheng)(sheng)(sheng)高等植(zhi)(zhi)(zhi)物(wu)(wu)(wu)是水(shui)(shui)生(sheng)(sheng)(sheng)生(sheng)(sheng)(sheng)態(tai)系統的(de)重(zhong)要組(zu)成部分和主要的(de)初(chu)級生(sheng)(sheng)(sheng)產者之一(yi),對(dui)(dui)生(sheng)(sheng)(sheng)態(tai)系統能(neng)(neng)量循(xun)環和傳遞起(qi)到調控作(zuo)(zuo)用(yong)。輪(lun)(lun)葉(xie)(xie)黑藻(zao)(zao)，又名黑藻(zao)(zao)，是水(shui)(shui)鱉科黑藻(zao)(zao)屬植(zhi)(zhi)(zhi)物(wu)(wu)(wu)，多年生(sheng)(sheng)(sheng)沉水(shui)(shui)植(zhi)(zhi)(zhi)物(wu)(wu)(wu)。輪(lun)(lun)葉(xie)(xie)黑藻(zao)(zao)生(sheng)(sheng)(sheng)存范圍(wei)廣(guang)、適應能(neng)(neng)力(li)強(qiang)、生(sheng)(sheng)(sheng)長(chang)速度(du)快(kuai)、富(fu)集能(neng)(neng)力(li)強(qiang)，是凈化污(wu)水(shui)(shui)的(de)理想植(zhi)(zhi)(zhi)物(wu)(wu)(wu)，能(neng)(neng)夠在水(shui)(shui)體(ti)(ti)(ti)中(zhong)(zhong)形成巨(ju)大的(de)“水(shui)(shui)下森林”，對(dui)(dui)水(shui)(shui)生(sheng)(sheng)(sheng)態(tai)系統結構和功能(neng)(neng)的(de)穩(wen)定(ding)具有重(zhong)要作(zuo)(zuo)用(yong)，常在富(fu)營(ying)(ying)養(yang)(yang)化水(shui)(shui)體(ti)(ti)(ti)植(zhi)(zhi)(zhi)被(bei)恢復工程中(zhong)(zhong)作(zuo)(zuo)為先(xian)鋒物(wu)(wu)(wu)種。實驗以(yi)沉水(shui)(shui)植(zhi)(zhi)(zhi)物(wu)(wu)(wu)輪(lun)(lun)葉(xie)(xie)黑藻(zao)(zao)為實驗材料，在不同(tong)(tong)濃(nong)度(du)營(ying)(ying)養(yang)(yang)液中(zhong)(zhong)輪(lun)(lun)葉(xie)(xie)黑藻(zao)(zao)對(dui)(dui)水(shui)(shui)體(ti)(ti)(ti)中(zhong)(zhong)氮、磷的(de)清理規律(lv)，為在不同(tong)(tong)濃(nong)度(du)氮、磷污(wu)染的(de)水(shui)(shui)體(ti)(ti)(ti)中(zhong)(zhong)放(fang)養(yang)(yang)輪(lun)(lun)葉(xie)(xie)黑藻(zao)(zao)，減輕富(fu)營(ying)(ying)養(yang)(yang)化水(shui)(shui)體(ti)(ti)(ti)中(zhong)(zhong)氮、磷的(de)濃(nong)度(du)，解(jie)決水(shui)(shui)體(ti)(ti)(ti)富(fu)營(ying)(ying)養(yang)(yang)化問題，找出(chu)固(gu)定(ding)的(de)理論依(yi)據，對(dui)(dui)水(shui)(shui)生(sheng)(sheng)(sheng)生(sheng)(sheng)(sheng)態(tai)系統中(zhong)(zhong)物(wu)(wu)(wu)質循(xun)環、提(ti)高生(sheng)(sheng)(sheng)態(tai)效率(lv)和水(shui)(shui)體(ti)(ti)(ti)自凈能(neng)(neng)力(li)、提(ti)高環境容納(na)量、防(fang)治水(shui)(shui)體(ti)(ti)(ti)富(fu)營(ying)(ying)養(yang)(yang)化等具有極為重(zhong)要的(de)意義。