Main purification role is played by artificial medium and aquatic macrophyte in pollutants removal, but the Corbicula fluminea introduced to food chain of combined floating bed enhances the purification effect through the ways as follows: improving the resolvability, ammonification and biodegradability of particulate organic matters, meliorating the substrate supply condition for absorption of plant and degradation of microorganism attached on artificial medium, hastening the growth and activity of microorganism.

污染物的直接凈化主體為人工介質(zhì)和水生植物單元欧美性大战久久久久久久，但在生態(tài)浮床中引入河蜆增加水生動(dòng)物單元，通過食物鏈的"加環(huán)"作用人人靠人人干，提高了顆粒性有機(jī)物的可溶化和無機(jī)化以及可生化性一级毛片免费播放在线视频尤，改善了植物吸收以及人工介質(zhì)單元生物膜中微生物的基質(zhì)條件，促進(jìn)微生物的生長和活性色日韩一区二区，提高了浮床的凈化效果国产一级av免费看。

The ability of filtering feeder of Corbicula fluminea can used to remove algae in water and control formation of the eutrophication.

以臺(tái)灣蜆對(duì)藻類的高濾除能力，可以用在生態(tài)工法里面欧美精品狂躁在线视频，當(dāng)去除水中藻類或葉綠素a的含量五月婷婷色色色色色色，以減少水質(zhì)朝向優(yōu)氧化的好物種。

The effects of temperature,body weight and food density on filter feeding rate and assimilation efficiency of Corbicula fluminea were studied under artificial conditions in laboratory.

在室內(nèi)實(shí)驗(yàn)條件下色福利官网，研究了溫度免费国产人成18在线观看、體重和餌料密度對(duì)河蜆濾食率和同化率的影響，此外還進(jìn)行了餌料質(zhì)量對(duì)河蜆同化率影響的實(shí)驗(yàn)欧洲无码特级毛片大全。

Corbicula fluminea clams, also known as Huang, the clams, found in lakes in rivers.

河蜆又稱黃蜆人人人操人人人干人人，金蜆，分布在湖泊江河中免费郑州性感美女黄色网站。

Freshwater clam Corbicula fluminea is the most important freshwater bivalve in Taiwan.

臺(tái)灣蜆的養(yǎng)殖在臺(tái)灣為所有二枚貝類中產(chǎn)量第三名亚洲国产污视频，也是淡水貝類中產(chǎn)量第一名。

The production of Corbicula fluminea has been decreasing in recent years. The most difficult problem for farming Corbicula fluminea is lack of enough freshwater, due to the water pollution in Taiwan.

臺(tái)灣蜆養(yǎng)殖產(chǎn)量并沒有年年增加日韩综合AV在线一区二区，反而有所減少AV原创在线，主要是由於淡水資源的污染，以及超抽地下水導(dǎo)致地層下陷的影響亚洲欧美熟妇综久久，使得淡水資源的取得不易免费啪啪黄色视频。

This year, despite the international financial crisis has not been ice-breaking, many export-enterprise support is still in the winter period, but the excellent enterprises in China are full of confidence, as Corbicula fluminea international market increasingly optimistic about the beginning of the year the price per ton has risen 70 U.S.

今年，盡管國際金融危機(jī)還未破冰亚洲欧美精品，眾多以出口為支撐的企業(yè)還處于寒冬期欧美一级强视频网址，但是佳華企業(yè)卻信心滿滿，因?yàn)楹油樀膰H市場行情日趨看好97免费无码视频人妻超级碰碰碰，年初每噸價(jià)格已上漲70美元中国jizz。

Corbicula fluminea, a bivalve commonly distributing in the tidal flats of the Yangtze River estuary, was selected for this study, which aimed to analyze accumulation characteristics of Zn,Cu,Pb,Cd and Cr in C. fluminea and to evaluate current situation of its biological quality.

以長江河口濕地生態(tài)系統(tǒng)一種習(xí)見的大型底棲動(dòng)物河蜆Corbicula fluminea為研究對(duì)象，分析和評(píng)價(jià)了河蜆對(duì)Zn欧美午夜A级限制福利片、Cu日韩丝袜福利网址在线观看视频免费、Pb黄色网站欧美性爱、Cd和Cr的積累特性以及長江口區(qū)河蜆的生物質(zhì)量現(xiàn)狀。

At the present, the water saving system for farming Corbicula fluminea is exploited and used. The concept of water saving system is purifying the water quality by using ecology engineering, and reused the water for farming Corbicula fluminea. This study is to investigate the effect of the water saving system by ecology survey, and to understand the feeding ecology of the freshwater clam.

近年來狼友视频在线播放网址，為因應(yīng)淡水資源的不足久久免费黄色视频，開始有采用所謂的節(jié)水養(yǎng)殖系統(tǒng)來養(yǎng)殖臺(tái)灣蜆，主要概念采用生態(tài)平衡的模式工法來凈化水質(zhì)而得重復(fù)利用免费A片在线视频，本研究主要即利用調(diào)查蜆池的水質(zhì)及生物變化免费观看WW红色片三级片，來了解節(jié)水養(yǎng)蜆系統(tǒng)的功效，同時(shí)探討臺(tái)灣蜆的濾食情形并作為一般水質(zhì)優(yōu)氧化處理之參考特级性片，來了解臺(tái)灣蜆的濾食情形99riav.com金发。

Based on the compared and simulated experiment, it was quantitively studied on the effect of macrobenthos (Ilyoplax deschampsin and Corbicula fluminea) on the exchange of nutrient across the sediment-water interface and the early diagenesis of nutrient in the tidal flat sediments from the Yangtze Estuary. Ilyoplax deschampsin and Corbicula fluminea affected the exchange of nutrient across the sediment-water interface by the different biological mechanisms.

本文依據(jù)長江河口濱岸潮灘大型底棲動(dòng)物的自然分布特征，選取了兩段典型的研究區(qū)域－崇明東部潮灘和滸浦岸段邊灘欧美性爱第8页，運(yùn)用實(shí)驗(yàn)?zāi)M和對(duì)比分析方法免费看毛片使劲操，定量地研究了大型底棲動(dòng)物譚氏泥蟹和河蜆對(duì)潮灘生態(tài)系統(tǒng)中營養(yǎng)鹽的界面擴(kuò)散及其早期成巖變化的影響。