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引用本文:柏祥,陈开宁,黄蔚,古小治,陈效民.移栽胁迫对3种湿地植物的影响.湖泊科学,2010,22(1):79-85. DOI:10.18307/2010.0111
BAI Xiang,CHEN Kainingz,HUANG Wei,GU Xiaozhi,CHEN Xiaomin.Effects of transplanting stress on three types of hydrophyte. J. Lake Sci.2010,22(1):79-85. DOI:10.18307/2010.0111
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移栽胁迫对3种湿地植物的影响
柏祥1,2, 陈开宁2, 黄蔚2, 古小治2, 陈效民1
1.南京农业大学资源与环境科学学院, 南京 210095;2.中国科学院南京地理与湖泊研究所, 南京 210008
摘要:
湿地植物的移栽是人工湿地修复的主要组成部分,移栽期间,植物从起苗、运输到栽植时间的长短等都直接影响到湿地植物移栽后的成活率和生长状况。以南四湖人工湿地中芦竹(Arundo donax)、芦苇(Phragmites communis)和香蒲(Typha latifolia)为研究对象,研究了移栽胁迫在起苗后24h内对3种植物的影响。结果表明:起苗后,芦苇的生物量和叶绿素含量下降速率最小,芦竹的叶绿素含量下降最快;叶绿素荧光方面,芦竹光合系统Ⅱ(PSⅡ)的潜在活性(Fv/Fo)和潜在最大光合能力(Y)最大,光保护能力(NPQ)也最强;香蒲的实际光合效率(ΦPSⅡ)最大;3种湿地植物的光化学淬灭(qP)、光保护能力和实际光合效率在5h左右即降至最低,而潜在最大光合能力下降至22h后达到稳定的较低值;芦苇的ΦPSⅡ、Y、qP、NPQ和香蒲的ΦPSⅡ、qP均与叶绿素含量的减少呈极显著的正相关关系(P<0.01)。以上结果表明,移栽胁迫对3种湿地植物产生了严重的影响,且影响程度为芦苇>香蒲>芦竹,起苗后栽植时间分别不宜超过4-6h、6-8h和14-16h,以保证移栽后的植物成活率和正常生长。
关键词:  移栽胁迫  湿地植物  叶绿素荧光  南四湖  人工湿地
DOI:10.18307/2010.0111
分类号:
基金项目:南水北调东线南四湖生态恢复与综合整治技术开发项目(2006BAC10B03);太湖贡湖北部底泥环保疏浚与生态修复技术研究项目(BS2007161);江苏典型水源地湖泊受损湿地生态修复应用技术研究(BE2008690)联合资助
Effects of transplanting stress on three types of hydrophyte
BAI Xiang1,2, CHEN Kainingz2, HUANG Wei2, GU Xiaozhi2, CHEN Xiaomin1
1.College of Resources and Environmental Science,Nanjing Agricultural University,Nanjing 210095,P.R.China;2.Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences,Nanjing 210008,P.R.China
Abstract:
Transplantation of hydrophytes is an important conduct during the construction of constructed wetland. Transplantingstress could influence the survival ratio and growth of hydrophyte. The change of transplanting stress with time after lifting on Arua-do donax, Phragmites communis and Typha latifolia in lake Nansi, Shandong Province was studied in this paper. The results wereas follows; P. communis had the least decrease in biomass and chlorophyll content among the 3 hydrophytes, while the chlorophyllcontent of A. donax decreased rapidly after lifting. In teens of the chlorophyll fluorescence, A. donax had the largest latent activity(Fv/Fo) of Photosynthesis System Ⅱ(ΦPSⅡ),latent maximum photosynthesis capacity(Y) and light protective capacity(NPQ).T. latifolia had the highest actual photosynthesis efficiency(ΦPSⅡ)synchronously. Photochemical quenching, lightprotective capacity and actual photosynthesis efficiency of the 3 hydrophytes all decreased to the lowest in 5 hours after lifting.However, the latent maximum photosynthesis capacity reached the lowest after 22 hours. TheΦPSⅡ, Y, qP, NPQ of P. communis and ΦPSⅡ,qP of T. latifolia showed remarkable positive correlation with the change of chlorophyll content (P<0.O1).The re-sups showed that the transplanting stress had great effects nn the 3 hydrophytes, and the degree of influence was following as P.communis>T.latifolia>A. donax, indicating the plants should be planted in 4-6h, 6-8h and 14-16h after lifting respective-1y, to sustain high survival ratio and natural growth.
Key words:  Transplanting stress  hydrophytes  chlorophyll fluorescence  Iake Nansi  constructed wetland
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