In addition, based on the analysis of the relationship among tidal flat structure, vegetable distribution and shorebird community, the result showed that tidal flat integrity, length of bulrush zone and algae saline zone, landscape diversity, human disturbance are the four key factors for shorebird to select habitats.

通過分析灘涂結(jié)構(gòu)欧美激情四射xXXX888、植被分布與鸻形目鳥類群落之間的關(guān)系發(fā)現(xiàn)鸻形目鳥類對生境選擇中，灘涂結(jié)構(gòu)完整度秋霞电影网717、藨草帶和光灘帶的寬度啪啪啪色免费网站、周邊景觀的多樣性、人為干擾程度都是影響鸻形目鳥類棲息地選擇的關(guān)鍵因子日本精品视频在线观看。

Communities structure, standing crops of benthic algae were investigated in the littoral zone of 6 Yunnan plateau lakes, and benthic algae communities were composed of Cladophora spp.

對云南6個高原湖泊沿岸帶底棲藻類的群落結(jié)構(gòu)7777色综合、現(xiàn)存量等進行了調(diào)查，研究期間發(fā)現(xiàn)底棲藻類群落主要由綠藻門的剛毛藻Cladophora spp亚洲人人级。

Algal crusts typically dominate all low zone rock surfaces,and most other sessile species (invertebrates and foliose algae) occur in holes and crevices.

殼狀藻類在低潮帶巖石表面占優(yōu)勢国产在线播放线视频，其它的固著生物(葉狀藻類與固著無脊椎動物)占據(jù)洞穴和狹縫。

The annual average density was 14.63 per hectare in saline algae zone, 7.50 per hectare in Scirpus marqueter/Scirpus triqueter zone and 1 .59 per hectare in reed zone;(4) The avian community similarity in between adjoining stages of vegetation succession was higher than that in between apart stages.

對不同季節(jié)的植被演替階段鳥類群落相似性進一步比較發(fā)現(xiàn)在线精品日韩一区二区美女，任何一個季節(jié)S_1和S_3的值均分別大于S_2中文一级免费视频；(5)鳥類群落的多樣性與群落中優(yōu)勢種華東師范大學2004屆碩L學位論文中文摘要所占的數(shù)量比例呈負相關(guān)。

Even if a bleached zone contains live polyps and carries the potential to recover when waters cool, a quick invasion of kelp, or types of algae that do not live symbiotically with coral, can make the die-off permanent - hence the protective role of plant-munchng fish.

即使白化區(qū)仍有活著的珊瑚蟲亚洲黄黄，當水溫降了下來時還是有復(fù)原的機會久草欧美，而巨藻或其它幾類無法與珊瑚共生的海藻的快速入侵下，致使珊瑚相繼死絕-由此可知這些大啖植物的魚類国产女人天天弄高清免费，它們的保護作用日韩区精品在线。

It was 7.25% in saline algae zone, 31.25% in Scirpus marqueter/Scirpus triqueter zone and 47.06% in reed zone;(3) The avian density undergoes declination with the development of wetland vegetation succession.

對全年不同演替階段鳥類群落進行相似性比較，蘆葦帶與海三棱藨草帶／藨草帶的相似性系數(shù)S_1=0.5442成色伊甸同上，海三棱藨草帶／藨草帶與鹽漬藻類帶S_3=0.618297超碰人人草，蘆葦帶與鹽漬藻類帶S_2=0.2585。

Laminaria japonica and Undaria pinnatifida, representative species of brown algae, inhabit subtidal zone; Ulva pertusa and Enteromorpha prolifera, representative species of green algae, inhabit intertidal zone.

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Research shows that algae from open water body are greatly trapped in the macrophyte-covered littoral zone ,and decomposed there.

研究發(fā)現(xiàn)植被型岸邊帶可以大量捕獲來自開闊水體的漂浮藻類，并使之在岸邊區(qū)迅速降解欧美超碰视屏，從而減少了進入水廠的藻類生物量亚洲欧美日韩专区。

At last, we studied the function of benthic algae in ecosystem of eutrophic lake, the primary productivity of benthic algae and the role of periphyton in phosphorus retention were investigated in a littoral zone of shallow lake.

最后對底棲藻類在富營養(yǎng)化湖泊生態(tài)系統(tǒng)中的作用和功能進行了初步研究，測定了不同季節(jié)東湖底棲藻類的初級生產(chǎn)力和對水體中磷的滯留作用国产精品免费久久久久影院无码。

In this paper, an attempt is made to predict the applied prospects of reed at water-lever-fluctuating Zone in the Three Gorges Reservoir Region by analyzing the present situation, in other words, reed may prevent water erosion, eutrophication in water, heavy metal pollution, solid castoff pollution, garbage infiltration and water pollution, the overrunning of algae and so on.

本文通過分析三峽庫區(qū)消落帶的生態(tài)環(huán)境問題国产使劲cao视频，預(yù)測了蘆葦在庫區(qū)的應(yīng)用前景，即可防止水土流失视频色色色人妻、水體富營養(yǎng)化新怡红院在线视频永久、重金屬污染亚洲中文精品图区、固體廢棄物污染、垃圾滲漏液污染和藻類爆發(fā)等問題日韩经典国内精品视频在线观看免费。