东方水韭种群分布格局研究
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摘要
以浙江省松阳县的安民乡安岱后村小烂湖和叔婆湾为样地,对濒危珍稀物种东方水韭的种群空间分布格局进行研究,探讨其分布规律、形成原因、种群保护及更新策略。结果显示:松阳县的东方水韭种群的分布格局以聚集分布为主,且叔婆湾种群聚集强度明显高于小烂湖种群。东方水韭种群聚集分布的原因在于东方水韭本身的生物和生态学特性,且与其种群分布的小生境水域流动性有关,即水域流动越慢种群聚集强度越大。做好生境保护,加强人工繁殖扩大种群规模有利于保护和更新东方水韭的种群。
The sample fields of Xiaolanhu and Shupowan in Andiahou Village, Anmin Town, Songyang County, Zhejiang Province were chosen to study the spatial distribution pattern of the endangered rare species Isoetes orientalis H.Liu et Q.F.Wang. Its distribution law, forming reasons, population protection and update strategies were discussed. The results showed that the distribution pattern of this species in Songyang County is dominated by cluster distribution, and population aggregating intensity of Shupowan is obviously higher than that of Xiaolanhu. The population distribution reason lies in biological and ecological characteristics of Isoetes orientalis H.Liu et Q.F.Wang and it is also related to water fluidity in the microhabitat. The slower water fluidity, the larger population aggregating intensity. To protect the habitat and increase the population scale of artificial breeding are new strategies to protect the Isoetes orientalis H.Liu et Q.F.Wang.
The sample fields of Xiaolanhu and Shupowan in Andiahou Village, Anmin Town, Songyang County, Zhejiang Province were chosen to study the spatial distribution pattern of the endangered rare species Isoetes orientalis H.Liu et Q.F.Wang. Its distribution law, forming reasons, population protection and update strategies were discussed. The results showed that the distribution pattern of this species in Songyang County is dominated by cluster distribution, and population aggregating intensity of Shupowan is obviously higher than that of Xiaolanhu. The population distribution reason lies in biological and ecological characteristics of Isoetes orientalis H.Liu et Q.F.Wang and it is also related to water fluidity in the microhabitat. The slower water fluidity, the larger population aggregating intensity. To protect the habitat and increase the population scale of artificial breeding are new strategies to protect the Isoetes orientalis H.Liu et Q.F.Wang.
引文
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[14] 朱文杰,陈欣,唐建军,等.濒危植物东方水韭(Isoetes orientalis)自然生境土壤营养状况及水体pH值分析[J].植物资源与环境学报,2010,19(2):75-78.
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[17] 杨伟波.湘西地区蛇足石杉种群分布格局研究[D].张家界:吉首大学,2009:1-43
[2] 郝日明,黄致远,刘兴剑,等.中国珍稀濒危保护植物在江苏省的自然分布及其特点[J].生物多样性,2000,8(2):153-162.
[3] 陈进明,王青锋.珍稀濒危蕨类植物东方水韭的遗传多样性[ J].武汉植物学研究,2006,24(6):569-573.
[4] 刘虹,王青锋.中国珍稀濒危植物东方水韭二歧根的发育[J].武汉大学学报(理学版),2006,52(6):757-762.
[5] 朱圣潮,朱文杰,陈欣,等.不同演替阶段东方水韭群落特征初步研究[J].植物资源与环境学报,2009,18(2):22-27.
[6] 周纪伦,郑师章,杨持,等.植物种群生态学[M].北京:高等教育出版社,1992:75-88.
[7] 金则新.浙江仙居俞坑森林群落优势种群结构与分布格局研究[J].武汉植物学研究.2000,18(5):383-389.
[8] 李景侠,张文辉,李红.稀有濒危植物独叶草种群分布格局的研究[J].西北植物学报.2001,21(5):879-884.
[9] Cassie R M.Frequency distribution medle in ecology plant and ot her organism[J ].Animal.Ecology,1962,31:65-95.
[10] 兰国玉.植物种群空间分布格局研究方法概述[J].西北林学院学报,2003,18(2):17-21.
[11] Gittins R.Canonical analysis:A review with applications in ecology[J ].Acta Biotheoretica,1986,35 (1/2):135-136.
[12] Lim Y,Na S T,Lee S J,et al.Spatial distribution patterns and implications for conservation of Scrophulariatakesimensis,(Scrophulariaceae),an endangered endemic species on Ulleung Island,Korea[J].Journal of Plant Biology,2008,51(3):213-220.
[13] 杜凤国,姜洪源,郭忠玲,等.吉林濒危植物天女木兰种群分布格局与生态位研究[J].南京林业大学学报,2011,35(3):33-37.
[14] 朱文杰,陈欣,唐建军,等.濒危植物东方水韭(Isoetes orientalis)自然生境土壤营养状况及水体pH值分析[J].植物资源与环境学报,2010,19(2):75-78.
[15] Pillay T,Ward D.Spatial pattern analysis and competition between Acacia karroo,trees in humid savannas[J].Plant Ecology,2012,213(10):1609-1619.
[16] Rhazi M,Grillas P,Charpentier A,et al.Experimental managelnent of mediterranean temporary pools for conservation of the rarequillwort Isoetes setaeea[J].Biologjcal Conservation,2004,118(5):675-684.
[17] 杨伟波.湘西地区蛇足石杉种群分布格局研究[D].张家界:吉首大学,2009:1-43