ZHANG Guo-wei.Effect of Garden Waste Lixivium on the Growth of Spirogyra communis and Aquatic Plants[J].HEILONGJIANG AGRICULTURAL SCIENCES,2021,(10):89-95.[doi:10.11942/j.issn1002-2767.2021.10.0089]
绿化废弃物浸出液对水绵和水生植物生长的影响
- Title:
- Effect of Garden Waste Lixivium on the Growth of Spirogyra communis and Aquatic Plants
- Keywords:
- garden waste lixivium; Spirogyra communis; inhibition effect
- 文献标志码:
- A
- 摘要:
- 为解决绿化废弃物的处置问题，以上海辰山植物园香樟类、松柏类、草坪草类和沉水植物类绿化废弃物为试材，采用浸泡方法提取不同类型的绿化废弃物浸出液并配置不同浓度，用绿化废弃物浸出液培养水绵（Spirogyra communis）和常见的水绵伴生水生植物（荷花、小香蒲和梭鱼草），观测其对水绵和水生植物生长的影响。结果表明：香樟类浸出液毒性最高，ρ(96 h,EC50)为6.512 mg·L-1,属高毒；其次是草坪草类，ρ(96 h，EC50)为7.392 mg·L-1，属高毒；沉水植物的ρ(96 h，EC50)为20.093 mg·L-1，属中毒；松柏类浸出液的毒性最小，ρ(96 h，EC50)为319.315 mg·L-1，属低毒。同时，4类浸出液对荷花和小香蒲的生长没有影响，浸出液会促进梭鱼草生长。因此，控制水生植物水体中水绵生长，应用香樟类、草坪草类浸出液浓度分别为6.5~24.0 mg·L-1、7.3~24.0 mg〗·L-1，浸出液在抑制水绵生长的同时对水生植物没有不良影响，这两类浸出液对控制水绵的生长具有一定的潜在价值。
- Abstract:
- In order to solve the problem of disposal of greening waste,this research took the four kinds of greenery wastes of Cinnamomumcamphora,Conifers,Turfgrass and Submerged plants in Shanghai Chenshan Botanical Garden as raw materials,soaked them,then extracted different types of lixivium,added the lixivium of different concentration into the water body of Spirogyra communis and common associated aquatic plants of Spirogyra communis (Nelumbo nucifera，Typha minima，Pontederia cordata),and observed effects on the growth of them.The results showed that Cinnamomum camphora extracts had the highest toxicity,ρ(96 h,EC50),was 6.512 mg·L-1,which was highly toxic.The second was Turfgrass,ρ(96 h,EC50) was 7.392 mg·L-1,which was highly toxic.The third was Submerged macrophyte,ρ(96 h,EC50) was 20.093 mg·-1,which was medium toxic.The toxicity of Conifers extracts was the least,ρ(96 h,EC50) was 319.315 mg·L-1,which was low toxicity.The four kinds of lixivium had no effect on the growth of Nelumbo nucifera and Typha minima,and the lixivium may even promote the growth of the Pontederia cordata.Therefore,in the water where aquatic plants were planted,for controlling the growth of Spirogyra communis,the lixivium concentrations of Cinnamomum camphora and Turfgrass should beseparately 6.5-24.0 mg·L-1 and 7.3-24.0 mg·L-1,which had no harmful effect on the growth of aquatic plants while inhibiting the growth of Spirogyra communis.As a result,these two kinds of lixivium have some certain potential value in controlling the growth of Spirogyra communis
参考文献/References:
［1］胡光济,侯浩波,张维昊.淡水高等水生植物对浮游藻类化感作用评述[J].安全与环境工程,2010,17(4):3-8.
备注/Memo
收稿日期：2021-06-18