Vegetative reproduction characteristics of Leymus chinensis in heterogeneous habitats in Songnen Plain, China

doi:10.13287/j.1001-9332.202001.001

Abstract

Abstract: The perennial clonal grasses rely mainly on vegetative reproduction to achieve continuous regeneration. Buds and juvenile tillers formed by buds are potential populations for vegetative reproduction. We compared the composition and size of potential population of Leymus chinensis in the enclosure meadow, long-term mowing meadow, enclosing sand-covered meadow, and forest-grassland, with excavation sampling by unit area and using vegetative reproduction generations to classify the age of tillers, rhizomes and various types of buds and juvenile tillers. The results showed that at the end of the growing season, potential population of L. chinensis was composed of rhizome buds and buds of tiller growing upwards at different ages, as well as juvenile tillers on the tillers and rhizomes. Across the four habitats, the potential population of tillers of L. chinensis was composed of 3-4 age classes, and the rhizomes’ potential population consisted of four age classes, of which the potential population formed by rhizomes accounted for 68.3% of the total potential population. The potential population produced by 1st age class tillers and rhizomes accounted for 60.2% of the total, which was the main part of the potential population composition and the main source of population renewal. The potential population of tillers was the most abundant in long-term mowing meadow. The potential population of rhizomes was the most abundant in enclosing sand-covered meadow. The vegetative fertility of tillers and rhizomes was the highest in young age. The vegetative fertility of rhizomes was 10.0 times as that of tillers, which dominated the vegetative reproduction of L. chinensis. The potential population composition of L. chinensis varied greatly across different habitats, reflecting the divergent adaptation to habitat variation.

CHU Li-shuang, LI Hai-yan, YANG Yun-fei. Vegetative reproduction characteristics of Leymus chinensis in heterogeneous habitats in Songnen Plain, China[J]. Chinese Journal of Applied Ecology, 2020, 31(1): 83-88.

References

[1] 李海燕. 东北退化草原恢复演替过程中几种植物种群的数量特征及其协同消长规律. 博士论文. 长春: 东北师范大学, 2008[Li H-Y. Quantitative Characters and Mutual Dynamics of Several Plant Populations during Restoration Succession in Degraded Meadow in Northeastern China. PhD Thesis. Changchun: Northeast Normal University, 2008]
[2] Abernethy VJ, Willby NJ. Changes along a disturbance gradient in the density and composition of propagule banks in floodplain aquatic habitats. Plant Ecology, 1999, 140: 177-190
[3] 孟令宇, 李海燕, 杨允菲. 退化羊草群落恢复演替系列种群构件年龄结构特征. 草业科学, 2011, 28(5): 807-812[Meng L-Y, Li H-Y, Yang Y-F. Characteristics of age structure of modules on Leymus chinensis populations in several succession series in degradation L. chinensis community. Pratacultural Science, 2011, 28(5): 807-812]
[4] 盛军, 朱瑶, 李海燕, 等. 松嫩平原异质生境光稃茅香种群构件结构的比较. 中国草地学报, 2018, 40(5): 38-44[Sheng J, Zhu Y, Li H-Y, et al. Compa-rison of module structures of Hierochloe glabra populations in heterogeneous habitats in Songnen Plain of China. Chinese Journal of Grassland, 2018, 40(5): 38-44]
[5] 盛军, 朱瑶, 李海燕, 等. 长期刈割及围栏封育方式对大油芒种群构件特征的影响. 草地学报, 2018, 26(3): 545-550[Sheng J, Zhu Y, Li H-Y, et al. Effects of long-term mowing and enclosure on module traits of Spodiopogon sibiricus population. Acta Agrestia Sinica, 2018, 26(3): 545-550]
[6] Qian JQ, Wang ZW, Klimeov J, et al. Differences in below-ground bud bank density and composition along a climatic gradient in the temperate steppe of northern China. Annual of Botany, 2017, 120: 755-764
[7] Ma Q, Qian JQ, Tian L, et al. Responses of below-ground bud bank to disturbance and stress in the sand dune ecosystem. Ecological Indicators, 2019, 106: 105521
[8] Ott JP, Klimeov J, Hartnett DC. The ecology and significance of below-ground bud banks in plants. Annals of Botany, 2019, 123: 1099-1118
[9] 杨允菲, 张宝田. 松嫩平原羊草种群营养繁殖的季节动态及其生物量与密度关系的分析. 植物学报, 1992, 34(6): 443-449[Yang Y-F, Zhang B-T. An analysis of seasonal variation of vegetative propagation and the relationships between biomass and population density of Aneurolepidium chinense in Songnen Plain of China. Acta Botanica Sinica, 1992, 34(6): 443-449]
[10] 王营. 刈割干扰与盐碱胁迫对不同密度羊草无性系空间拓展的影响. 硕士论文. 长春: 东北师范大学, 2017[Wang Y. Effects of Mowing Disturbance and Saline-alkali Stress on Spatial Expansion of Leymus chinensis Clones with Different Densities. Master Thesis. Changchun: Northeast Normal University, 2017]
[11] Gao Y, Xing F, Jin Y, et al. Foraging responses of clonal plants to multi-patch environmental heterogeneity: Spatial preference and temporal reversibility. Plant and Soil, 2012, 359: 137-147
[12] 焦德志, 杨允菲. 扎龙保护区不同生境羊草种群芽库的组成. 黑龙江畜牧兽医, 2007(4): 55-56[Jiao D-Z, Yang Y-F. Composition of the bud banks of Leymus chinensis population in different habitats of Zhalong Nature Reserve. Heilongjiang Animal science and Veterinary Medicine, 2007(4): 55-56]
[13] 范广芝, 李海燕, 杨允菲. 割草场不同演替系列羊草和光稃茅香种群构件结构的研究. 草业科学, 2006, 23(2): 34-37[Fan G-Z, Li H-Y, Yang Y-F. Analysis of the modular structures of populations on Leymus chinensis and Hierochloe glabra in different succession series in cutting grassland. Pratacultural Science, 2006, 23(2): 34-37]
[14] 李海燕, 杨允菲. 松嫩草原水淹恢复演替过程中羊草无性系种群构件的物质生产与贮藏. 应用生态学报, 2005, 16(12): 2339-2343[Li H-Y, Yang Y-F. Matter production and storage of Leymus chinensis clonal populations in restoration succession process of flooded meadow in Songnen Plain of China. Chinese Journal of Applied Ecology, 2005, 16(12): 2339-2343]
[15] 杨允菲, 李建东. 松嫩平原几种根茎型禾草种群的营养繁殖特性及其持续更新分析. 草业学报, 1996, 5(2): 43-48[Yang Y-F, Li J-D. Vegetative propagation of some rhizomatous grasses on Songnen Plain and their population stability. Acta Pratacultural Science, 1996, 5(2): 43-48]
[16] 杨允菲, 刘庚长, 张宝田. 羊草种群年龄结构及无性繁殖对策的分析. 植物学报, 1995, 37(2): 147-153[Yang Y-F, Liu G-C, Zhang B-T. An analysis of age structure and the strategy for asexual propagation of Aneurolepidium chinense population. Acta Botanica Sinica, 1995, 37(2): 147-153]
[17] 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. 生态学报, 1998, 18(3): 302-308[Yang Y-F, Zheng H-Y, Li J-D. Comparison of age structures of the tillers in the Leymus chinensis population, a clonal grass species under different ecological conditions. Acta Ecologica Sinica, 1998, 18(3): 302-308]
[18] 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. 东北师大学报: 自然科学版, 1998(1): 54-58[Yang Y-F, Zheng H-Y, Li J-D. Methods of study on age structures of clonal populations in rhizome type grass. Journal of Northeast Normal University (Natural Science), 1998(1): 54-58]
[19] 金晓明, 兰雪, 官庆新, 等. 不同密度下羊草种群的无性繁殖对策. 草地学报, 2017, 25(4): 845-850[Jin X-M, Lan X, Guan Q-X, et al. The strategy of asexual reproduction for population of Leymus chinensis under different densities. Acta Agrestia Sinica, 2017, 25(4): 845-850]
[20] Li HY, Yang YF, Zhao Y. Bud banks of two dominant grass species and their roles in restoration succession series of a flooded meadow. Polish Journal of Ecology, 2012, 60: 535-543
[21] 杨允菲, 张宝田. 松嫩平原不同生境条件下羊草无性系的生长规律. 应用生态学报, 2006, 17(8): 1419-1423[Yang Y-F, Zhang B-T. Growth patterns of Leymus chinensis clones under different habitat conditions in Songnen Plain of China. Chinese Journal of Applied Eco-logy, 2006, 17 (8): 1419-1423]
[22] 田雪. 松嫩平原两种生境虎尾草无性系构件生长与生物量分配的研究. 硕士论文. 长春: 东北师范大学, 2018[Tian X. Module Growth and Biomass Allocation of Chloris virgata Clone at Two Different Habitat Types in Songnen Plain of China. Master Thesis. Changchun: Northeast Normal University, 2018]
[23] 焦德志, 姜秋旭, 曹瑞, 等. 扎龙湿地不同生境芦苇种群根茎数量特征及动态. 生态学报, 2018, 38(10): 3432-3440 [Jiao D-Z, Jiang Q-X, Cao R, et al. Quantitative characteristics and dynamics of the rhizome of Phragmites australis populations in heterogeneous habitats in the Zhalong Wetland. Acta Ecologica Sinica, 2018, 38(10): 3432-3440]
[24] 王玉辉, 周广胜. 两种土壤类型对羊草生物学特征的影响. 草地学报, 2000, 8(3): 220-225[Wang Y-H, Zhou G-S. Primary study on characteristics of Leymus chinensisin two soil types. Acta Agrestia Sinica, 2000, 8(3): 220-225]
[25] 李红. 松嫩平原根茎型禾草种群的繁殖特性及趋同适应机理研究. 博士论文. 长春: 东北师范大学, 2002[Li H. Studies on the Reproductive Characteristics and Convergent Adaptation Theory of Rhizome Grass Population in Songnen Plain. PhD Thesis. Changchun: Northeast Normal University, 2002]
[26] Klinerov T, Tasevov K, Dostl P. Large generative and vegetative reproduction independently increases global success of perennial plants from Central Europe. Journal of Biogeography, 2018, 45: 1550-1559