【摘要】：研究設(shè)置了營養(yǎng)水平不同的3種基質(zhì),在有或無浮水植物水鱉共存的情況下,混合種植營養(yǎng)吸收方式不同的兩種沉水植物(僅從水中吸收營養(yǎng)的金魚藻和從水和基質(zhì)都能吸收營養(yǎng)的穗花狐尾藻),探討在不同的基質(zhì)中浮水植物對沉水植物的影響。結(jié)果顯示:實驗中水鱉的存在均未對共存的兩種沉水植物的生長產(chǎn)生抑制作用。當(dāng)水鱉覆蓋水面時,與無根的金魚藻競爭光照和水體營養(yǎng),促使其增加分枝數(shù)和莖長,并增加葉生物量的分配,最終導(dǎo)致水鱉的共存促進(jìn)了金魚藻的生物量積累。但與金魚藻不同,有根的穗花狐尾藻可通過基質(zhì)吸收營養(yǎng),與共存的水鱉之間只存在光照競爭,使穗花狐尾藻僅以改變植株形態(tài)來適應(yīng)浮水植物的表層覆蓋,生物量積累并未發(fā)生顯著變化。與沙處理相比,水鱉在營養(yǎng)水平較高的泥處理和泥沙混合處理中生長更旺盛,基質(zhì)沒有顯著影響沉水植物的生物量和分株數(shù)。因此,在退化濕地生態(tài)系統(tǒng)中恢復(fù)水生植物時,為了提高群落的物種多樣性,可以將沉水植物與少量的浮水植物組合配置,少量的浮水植物不會對沉水植物的生長帶來負(fù)面影響。
[Abstract]:In this study, three kinds of substrates with different nutrient levels were set up, and under the condition that there were or no floating water plants, the soft-shelled turtle was coexisting. The effects of phytoplankton on submerged plants were studied by mixed cultivation of two submerged plants with different nutrient absorption patterns (only goldfish algae which can absorb nutrients from water and substrate) and Spike foxtail algae which can absorb nutrients from both water and substrate. The effects of phytoplankton on submerged plants in different substrates were studied. The results showed that the existence of soft-shelled turtle did not inhibit the growth of two submerged plants. When the shelled turtle covered the water surface, it competed with the rootless goldfish algae for light and water nutrition, which made it increase the number of branches and stem length, and increase the distribution of leaf biomass, which resulted in the coexistence of the turtle and the accumulation of the biomass of goldfish algae. However, different from goldfish, the rootstocks can absorb nutrients through the substrate, and there is only a competition of light between them, which makes them adapt to the surface layer of the phytoplankton only by changing the plant shape. Biomass accumulation did not change significantly. Compared with the sand treatment, the water turtle grew more vigorously in the mud treatment and the sediment mixed treatment, and the substrate had no significant effect on the biomass and plant number of submerged plants. Therefore, when restoring aquatic plants in degraded wetland ecosystems, in order to improve the species diversity of communities, submerged plants can be combined with a small number of phytoplankton. A small amount of phytoplankton does not negatively affect the growth of submerged plants.
【作者單位】： 華中師范大學(xué)生命科學(xué)學(xué)院;
【基金】：漢豐湖湖濱帶濕地生態(tài)修復(fù)技術(shù)示范(2013ZX07104-004-03) 華中師范大學(xué)中央高�；究蒲袠I(yè)務(wù)費(fèi)專項資金(No.CCNU16A02032)資助~~
【分類號】：S931.1;X52

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 左進(jìn)城;苗鳳萍;王愛云;趙愛芬;王仲禮;吳振斌;;收割對穗花狐尾藻生長的影響[J];生態(tài)學(xué)雜志;2009年04期

2 易文利;王圣瑞;楊蘇文;金相燦;王國棟;;有機(jī)質(zhì)腐解對穗花狐尾藻生長及磷積累的影響[J];生態(tài)環(huán)境學(xué)報;2011年05期

3 易文利;王圣瑞;楊蘇文;金相燦;王國棟;;有機(jī)質(zhì)腐解對穗花狐尾藻生長及生理的影響[J];中國環(huán)境科學(xué);2011年10期

4 葛芳杰;劉碧云;魯志營;高云霓;吳振斌;;不同氮、磷濃度對穗花狐尾藻生長及酚類物質(zhì)含量的影響[J];環(huán)境科學(xué)學(xué)報;2012年02期

5 胡威;章典;冉穎霞;張庭廷;;穗花狐尾藻對淡水水華藻類的化感效應(yīng)(英文)[J];安徽師范大學(xué)學(xué)報(自然科學(xué)版);2011年04期

6 李國新;薛培英;李慶召;高亞杰;顏昌宙;;pH對穗花狐尾藻吸附重金屬鎘的影響[J];環(huán)境科學(xué)研究;2009年11期

7 李國新;陳國元;李青松;王蕾;;穗花狐尾藻對鎘的生物吸附特性研究[J];安全與環(huán)境學(xué)報;2013年06期

8 顏昌宙;曾阿妍;金相燦;王圣瑞;許秋瑾;趙景柱;;沉水植物輪葉黑藻和穗花狐尾藻對Cu~(2+)的等溫吸附特征[J];環(huán)境科學(xué);2006年06期

9 王瑜;劉錄三;舒儉民;劉存歧;馬曉利;;穗花狐尾藻和金魚藻對白洋淀水質(zhì)影響的原位圍隔試驗[J];環(huán)境科學(xué)研究;2012年03期

10 鐘愛文;曹特;張萌;倪樂意;謝平;;光照和黑暗條件下苦草(Vallisneria natans)和穗花狐尾藻(Myriophyllum spicatum)對銨態(tài)氮的吸收[J];湖泊科學(xué);2013年02期

相關(guān)碩士學(xué)位論文 前4條

1 ANDREW APUDO APUDO;高低營養(yǎng)生長條件下的穗花狐尾藻（Myriophyllum spicatum L.）對氨氮毒性的生理可塑性響應(yīng)[D];中國科學(xué)院研究生院(武漢植物園);2016年

2 郭俊秀;營養(yǎng)鹽對沉水植物生長指標(biāo)和抗氧化酶系統(tǒng)的影響[D];內(nèi)蒙古農(nóng)業(yè)大學(xué);2008年

3 蘇倩;穗花狐尾藻和蓖齒眼子菜氮磷積累量特征及凈水功能[D];河北大學(xué);2013年

4 王瑜;穗花狐尾藻、金魚藻及圓頂珠蚌對白洋淀水質(zhì)影響：圍隔試驗[D];河北大學(xué);2011年

，

本文編號：2430077