长期刈割及围栏封育方式对大油芒种群构件特征的影响
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摘要
对松嫩平原长期刈割和围栏封育利用方式下的大油芒(Spodiopogon sibiricus)种群构件特征进行了研究,结果表明,2种利用方式下,大油芒种群分株由2~3个龄级构成,根茎由3~4个龄级构成,均呈增长型年龄结构。长期刈割方式下,潜在种群由苗和芽组成,而围栏封育方式下仅存在芽构件。在2种利用方式下,分株生产力、根茎贮藏力、分株和根茎的营养繁殖力均以年轻龄级最高。相对于围栏封育方式,长期刈割促进了苗的输出,增加了根茎营养繁殖力,但整体上使大油芒种群分株数量和生物量、根茎长度和生物量、分株生产力和总芽数显著降低。因此,长期刈割对大油芒种群的维持和更新产生不利影响。
Module traits were compared under long-term mowing and enclosure utilization of Spodiopogon sibiricus population in Songnen Plain of China.The results showed that ramets of S.sibiricus consisted of 2 to 3 ages and rhizomes consisted of 3 to 4 ages in two utilization types,which were both increasing age structure.Under long-term mowing,potential population consisted of juvenile tillers and buds,but only buds in enclosure utilization.Productivity of ramets,storage ability of rhizomes and vegetative propagation capacity of ramets and rhizomes were the greatest at 1 st age.Relative to the enclosure utilization,longterm mowing promoted the output of juvenile tillers and vegetation propagation capacity of ramets,but on the whole,it significantly decreased ramets number and biomass,root length and biomass,productivity of ramets and total buds.This research concluded that long-term mowing utilization has negative effect on maintenance and regeneration of S.sibiricus population.
Module traits were compared under long-term mowing and enclosure utilization of Spodiopogon sibiricus population in Songnen Plain of China.The results showed that ramets of S.sibiricus consisted of 2 to 3 ages and rhizomes consisted of 3 to 4 ages in two utilization types,which were both increasing age structure.Under long-term mowing,potential population consisted of juvenile tillers and buds,but only buds in enclosure utilization.Productivity of ramets,storage ability of rhizomes and vegetative propagation capacity of ramets and rhizomes were the greatest at 1 st age.Relative to the enclosure utilization,longterm mowing promoted the output of juvenile tillers and vegetation propagation capacity of ramets,but on the whole,it significantly decreased ramets number and biomass,root length and biomass,productivity of ramets and total buds.This research concluded that long-term mowing utilization has negative effect on maintenance and regeneration of S.sibiricus population.
引文
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[3]徐慧敏,白天晓,安娜,等.不同刈割制度对典型草原羊草功能性状的影响[J].中国草地学报,2016,38(06):60-65
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[9]李静鹏,郑志荣,赵念席,等.刈割、围封、放牧三种利用方式下草原生态系统的多功能性与植物物种多样性之间的关系[J].植物生态学报,2016,40(08):735-747
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[17]刘志民,李雪华,李荣平,等.科尔沁沙地15种禾本科植物种子萌发特性比较[J].应用生态学报,2003,14(09):1416-1420
[18]慈华聪,田晓明,张楚涵,等.不同盐分处理对狼尾草和大油芒发芽与幼苗生长的影响[J].生态学杂志,2013,32(05):1168-1174
[19]李翠,王庆海,肖波.3种草本能源植物对Zn胁迫的生理响应与积累特性[J].草业科学,2013,30(10):1555-1560
[20]杨允菲,郑慧莹,李建东.根茎禾草无性系种群年龄结构的研究方法[J].东北师大学报(自然科学版),1998,30(1):49-53
[21]张露丹,李海燕,杨允菲.松嫩平原单优种群落斑块拂子茅种群构件的年龄结构[J].草业学报,2016,25(9):20-27
[22]赵玉,李海燕,贾娜尔,等.伊犁河谷不同生境假苇拂子茅种群构件组成及其年龄结构[J].草业学报,2009,18(02):89-94
[23]陈积山,张强,朱瑞芬,等.羊草草甸草原刈割、施氮对物种多样性与生产力关系的影响[J].草地学报,2016,24(04):910-914
[24]Guo Y J,Han L,Li G D,et al.The effects of defoliation on plant community,root biomass and nutrient allocation and soil chemical properties on semi-arid steppes in northern China[J].Journal of Arid Environments,2012,78:128-134
[25]郑伟,于辉.围栏封育对伊犁绢蒿种群构件生长和生物量分配的影响[J].草地学报,2013,21(01):42-49
[26]Qian J Q,Wang Z W,Jitka K,et al.Differences in belowground bud bank density and composition along a climatic gradient in the temperate steppe of northern China[J].Annals of Botany,2017,120(5):755-764
[27]Li H Y,Yang Y F.Bud banks of two perennial grasses:composition,size,dynamics and contribution to population maintenance during the flooded restoration succession on the Songnen Meadow,China[J].African Journal of Agricultural Research,2011,6(10):2198-2203
[28]杨允菲,张洪军,张宝田.松嫩平原野古草无性系种群的营养繁殖特征[J].草业学报,1998,7(01):2-6
[29]初晓辉,谢勇,单贵莲,等.放牧和封育对青藏高原南缘亚高山草甸群落结构及物种多样性的影响[J].草地学报,2017,25(05):939-945
[2]李程程,李海燕,杨允菲.松嫩平原野古草种群构件结构动态[J].生态学报,2015,35(8):2609-2615
[3]徐慧敏,白天晓,安娜,等.不同刈割制度对典型草原羊草功能性状的影响[J].中国草地学报,2016,38(06):60-65
[4]刘美玲,宝音陶格涛,杨持,等.不同轮割制度对内蒙古大针茅草原群落组成的影响[J].北京师范大学学报(自然科学版),2007,43(01):83-87
[5]李学斌,陈林,李国旗,等.干旱半干旱地区围栏封育对甘草群落特征及其分布格局的影响[J].生态学报,2013,33(13):3995-4001
[6]刘美丽,梁秀梅,乌仁其其格.刈割制度对围封羊草草地群落特征及生物量的影响[J].草业科学,2016,33(11):2319-2325
[7]Cristina H J,Schmitz M F,Pineda F D.Effects of different clipping intensities on above-and below-ground production in simulated herbaceous plant communities[J].Plant Biosystems,2014,150(3),468-476
[8]闫玉春,唐海萍,辛晓平,等.围封对草地的影响研究进展[J].生态学报,2009,29(09):5039-5046
[9]李静鹏,郑志荣,赵念席,等.刈割、围封、放牧三种利用方式下草原生态系统的多功能性与植物物种多样性之间的关系[J].植物生态学报,2016,40(08):735-747
[10]杨允菲,郑慧莹,李建东.不同生态条件下羊草无性系种群分蘖植株年龄结构的比较研究[J].生态学报,1998,18(03):80-86
[11]杨允菲,李建东,郑慧莹.松嫩平原牛鞭草无性系种群的营养繁殖策略[J].草业学报,1997,6(02):37-41
[12]杨允菲,张宝田,李建东.松嫩平原硬拂子茅无性系种群营养繁殖的数量特征[J].草业学报,1998,7(04):8-13
[13]贾慎修.中国饲用植物志(第一卷)[M].北京:农业出版社,1987,186-187
[14]朱志诚,贾东林.陕北黄土高原大油芒群落生物量初步研究[J].植物生态学与地植物学学报,1991,15(03):253-263
[15]李海燕,杨允菲.松嫩平原杂类草草甸和榆树疏林草原大油芒种群的年龄结构[J].应用生态学报,2011,22(08):1982-1986
[16]李海燕,杨允菲,李建东,等.不同植被类型大油芒种群构件特征的比较研究[J].中国草地学报,2011,33(06):35-40
[17]刘志民,李雪华,李荣平,等.科尔沁沙地15种禾本科植物种子萌发特性比较[J].应用生态学报,2003,14(09):1416-1420
[18]慈华聪,田晓明,张楚涵,等.不同盐分处理对狼尾草和大油芒发芽与幼苗生长的影响[J].生态学杂志,2013,32(05):1168-1174
[19]李翠,王庆海,肖波.3种草本能源植物对Zn胁迫的生理响应与积累特性[J].草业科学,2013,30(10):1555-1560
[20]杨允菲,郑慧莹,李建东.根茎禾草无性系种群年龄结构的研究方法[J].东北师大学报(自然科学版),1998,30(1):49-53
[21]张露丹,李海燕,杨允菲.松嫩平原单优种群落斑块拂子茅种群构件的年龄结构[J].草业学报,2016,25(9):20-27
[22]赵玉,李海燕,贾娜尔,等.伊犁河谷不同生境假苇拂子茅种群构件组成及其年龄结构[J].草业学报,2009,18(02):89-94
[23]陈积山,张强,朱瑞芬,等.羊草草甸草原刈割、施氮对物种多样性与生产力关系的影响[J].草地学报,2016,24(04):910-914
[24]Guo Y J,Han L,Li G D,et al.The effects of defoliation on plant community,root biomass and nutrient allocation and soil chemical properties on semi-arid steppes in northern China[J].Journal of Arid Environments,2012,78:128-134
[25]郑伟,于辉.围栏封育对伊犁绢蒿种群构件生长和生物量分配的影响[J].草地学报,2013,21(01):42-49
[26]Qian J Q,Wang Z W,Jitka K,et al.Differences in belowground bud bank density and composition along a climatic gradient in the temperate steppe of northern China[J].Annals of Botany,2017,120(5):755-764
[27]Li H Y,Yang Y F.Bud banks of two perennial grasses:composition,size,dynamics and contribution to population maintenance during the flooded restoration succession on the Songnen Meadow,China[J].African Journal of Agricultural Research,2011,6(10):2198-2203
[28]杨允菲,张洪军,张宝田.松嫩平原野古草无性系种群的营养繁殖特征[J].草业学报,1998,7(01):2-6
[29]初晓辉,谢勇,单贵莲,等.放牧和封育对青藏高原南缘亚高山草甸群落结构及物种多样性的影响[J].草地学报,2017,25(05):939-945