Population structure and quantitative dynamics of Stellera chamaejasme in degraded typical steppe

doi:10.13287/j.1001-9332.202009.008

Abstract

Abstract: Stellera chamaejasme is one of most common poisonous plant species in degraded grasslands of China. S. chamaejasme could dominate the community in some severely degraded grasslands, which is a serious threat to the sustainable development of animal husbandry in natural grasslands. In this study, S. chamaejasme population was divided into 10 age classes according to the number of branches. We investigated the age structure of S. chamaejasme population and population dynamic indices, and quantified the survival status of S. chamaejasme population by compiling a static life table, drawing a survival curve, conducting survival analysis. The age structure of S. chamaejasme population in the study area was growth type. The number of individuals in Ⅰ age class was sufficient but with relatively low survival rate. The population structure of S. chamaejasme was fitted the growing type. The development process of population was fluctuating. The number of individuals would drop sharply in Ⅱ and Ⅷ, indicating that these two age classes were the bottleneck period in the development of S. chamaejasme population. The survival curves of S. chamaejasme population was the Deevey-Ⅱ type. The results of survival analysis showed that the population had a sharp decrease in the early stage and was stable in the later stage, which was because the value of f_x and λ_x of S. chamaejasme in Ⅰ or Ⅱ age class were the highest. In conclusion, sufficient young individuals (Ⅰ) was the basis for the expansion of S. chamaejasme population in the degraded typical steppe. The low transformation rate of young individuals to adults might be one of the reasons explaining why S. chamaejasme population could not expand rapidly in the early stage of grassland degradation. Therefore, it was suggested to intervene early when the number of S. chamaejasme was limited.

Key words: Stellera chamaejasme, age structure, dynamic index, survival analysis, survival curve

GUO Li-zhu, ZHAO Huan, LYU Jin-ying, WANG Kai-li, LIU Ke-si, WANG Kun, HUANG Ding. Population structure and quantitative dynamics of Stellera chamaejasme in degraded typical steppe[J]. Chinese Journal of Applied Ecology, 2020, 31(9): 2977-2984.

References

[1] Harper JL. Population Biology of Plant. London: Academic Press, 1977: 22-28
[2] Silvertown JW, Charlesworth D. Introduction to Plant Population Ecology. 4th Ed. Oxford: Blackwell Science, 2009: 133-143
[3] 周纪伦, 郑师章, 杨持. 植物种群生态学. 北京: 高等教育出版社,1992: 2-7 [Zhou J-L, Zheng S-Z, Yang C. Plant Population Ecology. Beijing: Higher Education Press, 1992: 2-7]
[4] Holeksa J, Saniga M, Szwagrzyk J, et al.Altitudinal variability of stand structure and regeneration in the subalpine spruce forests of the Pol’ana biosphere reserve, Central Slovakia. European Journal of Forest Research, 2007, 126: 303-313
[5] 姜在民, 和子森, 宿昊, 等. 濒危植物羽叶丁香种群结构与动态特征. 生态学报, 2018, 38(7): 2471-2480 [Jiang Z-M,He Z-S,Su H, et al. Population structure and dynamic characteristics of endangered Syringa pinnatifolia Hemsl. Acta Ecologica Sinica, 2018, 38(7): 2471-2480]
[6] 赵玉. 新疆濒危植物野生樱桃李群落与种群生态研究. 博士论文. 长春: 东北师范大学, 2015 [Zhao Y. Ecological Research of Community and Population on Wild Prunus divaracata for Endangered Plant in Xinjiang, China. PhD Thesis. Changchun: Northeast Normal University, 2015]
[7] 杨凤翔, 王顺庆, 徐海根, 等. 生存分析理论及其在研究生命表中的应用. 生态学报, 1991, 11(2): 153-158 [Yang F-X, Wang S-Q, Xu H-G, et al. The theory of survival analysis and its application to life table. Acta Ecologica Sinica, 1991, 11(2): 153-158]
[8] 常文峰. 小陇山山门林区锐齿栎种群数量动态研究. 硕士论文. 兰州: 甘肃农业大学, 2018 [Chang W-F. Research of the Population Dynamics of Quercus aliena var. acuteserata at the Shanmen Forest Area in Xiaolong Mountain. Master Thesis. Lanzhou: Lanzhou University, 2018]
[9] 陈晓德. 植物种群与群落结构动态量化分析方法研究. 生态学报, 1998, 18(2): 214-217 [Chen X-D. A study on the method of quantitative analysis for plant population and community structural dynamics. Acta Ecologica Sinica, 1998, 18(2): 214-217]
[10] 金慧, 赵莹, 刘丽杰, 等. 长白山区濒危植物朝鲜崖柏种群数量特征及动态. 应用生态学报, 2019, 30(5): 1563-1570 [Jin H, Zhao Y, Liu L-J, et al. Quantitative characteristics and population dynamics of the endangered plant Thuja koraiensis in Changbai Mountain, China. Chinese Journal of Applied Ecology, 2019, 30(5): 1563-1570]
[11] 张维, 李海燕, 崔东, 等. 新疆野核桃自然保护区不同坡向野核桃幼苗种群年龄结构及生长特征. 应用生态学报, 2017, 28(2): 382-390 [Zhang W, Li H-Y, Cui D, et al. Age structure and growth characteristics of Juglans cathayensis seedling populations at diffe-rent slope aspects in Wild Walnut Natural Conservation Area of Xinjiang, China. Chinese Journal of Applied Ecology, 2017, 28(2): 382-390]
[12] Navas ML. Using plant population biology in weed research: A strategy to improve weed management. Weed Research, 1991, 31: 171-179
[13] 郭丽珠, 王堃. 瑞香狼毒生物学生态学研究进展. 草地学报, 2018, 26(3): 525-532 [Guo L-Z, Wang K. Research progress on biology and ecology of Stellera chamaejasme L. Acta Agrestia Sinica, 2018, 26(3): 525-532]
[14] 郭丽珠, 黄顶, 张丛, 等. 退化典型草原狼毒生物量分配及异速生长分析. 中国草地学报, 2019, 41(6): 53-59 [Guo L-Z, Huang D, Zhang C, et al. Analysis of biomass allocation and allometric growth of Stellera chamaejasme in degraded typical steppe. Chinese Journal of Grassland, 2019, 41(6): 53-59]
[15] 邢福. 东北退化草原狼毒种群生活史对策研究. 博士论文. 长春: 东北师范大学, 2002 [Xing F. Studies on the Life-history Strategies of Stellera chamaejasme Population in the Degraded Steppe of Northeast China. PhD Thesis. Changchun: Northeast Normal University, 2002]
[16] 高福元, 赵成章. 高寒退化草地狼毒种群株丛间格局控制机理. 生态学报, 2013, 33(10): 3114-3121 [Gao F-Y, Zhao C-Z. Pattern-controlling mechanics of different age classes of Stellera chamaejasme population in degraded alpine grassland. Acta Ecologica Sinica, 2013, 33(10): 3114-3121]
[17] 赵成章, 高福元, 王小鹏, 等. 黑河上游高寒退化草地狼毒种群小尺度点格局分析. 植物生态学报, 2010, 34(11): 1319-1326 [Zhao C-Z, Gao F-Y, Wang X-P, et al. Fine-scale spatial patterns of Stellera chamaejasme population in degraded alpine grassland in upper reaches of Heihe, China. Chinese Journal of Plant Ecology, 2010, 34(11): 1319-1326]
[18] 张茜, 赵成章, 马小丽, 等. 高寒草地狼毒种群繁殖分配对海拔的响应. 生态学杂志, 2013, 32(2): 247-252 [Zhang Q, Zhao C-Z, Ma X-L, et al. Response of reproductive allocation of Stellera chamaejasme population in alpine grassland to altitude. Chinese Journal of Ecology, 2013, 32(2): 247-252]
[19] 赵成章, 任珩. 退化草地阿尔泰针茅与狼毒种群的小尺度种间空间关联. 生态学报, 2011, 31(20): 6080-6087 [Zhao C-Z, Ren H. Fine-scale spatial associations of Stipa krylovii and Stellera chamaejasme population in alpine degraded grassland. Acta Ecologica Sinica, 2011, 31(20): 6080-6087]
[20] 瓦勒塔. 黄土高原典型草原三种植物种群数量特征及对放牧的响应. 硕士论文. 兰州: 兰州大学, 2019 [Wa L-T. Quantitative Characteristics and Their Responses to Grazing of Three Plant Populations in Typical Steppe of Loess Plateau. Master Thesis. Lanzhou: Lanzhou University, 2019]
[21] 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): 36-42 [Sheng J, Zhu Y, Li H-Y, et al. Compari-son of module structures of Hierochloe glabra populations in heterogeneous habitats in Songnen plain of China. China Journal of Grassland, 2018, 40(5): 36-42]
[22] 袁宏波, 张锦春, 褚建民, 等. 库姆塔格沙漠典型植物种群年龄结构特征. 西北植物学报, 2011, 31(11): 2304-2309 [Yuan H-B, Zhang J-C, Chu J-M, et al. Characteristics of the age structures of three typical plant populations in Kumtag Desert. Acta Botanica Boreali-Occidentalia Sinica, 2011, 31(11): 2304-2309]
[23] Bai YF, Xu ZX, Li DX, et al. Study on age and bunch structure of four Stipa species in Inner Mongolia Plateau. Acta Botanica Sinica, 1999, 41: 102-108
[24] 江洪. 云杉种群生态学. 北京: 中国林业出版社, 1992: 8-28 [Jiang H. Population Ecology of Dragon Spruce. Beijing: China Forestry Press, 1992: 8-28]
[25] Lowe VPW. Population dynamics of the Red Deer (Cervus elaphus L.) on Rhum. Journal of Animal Ecology, 1969, 38: 425-457
[26] Zhao ML, Gao XL, Wang J, et al. A review of the most economically important poisonous plants to the livestock industry on temperate grasslands of China. Journal of Applied Toxicology, 2013, 33: 9-17
[27] 侯扶江, 常生华, 于应文, 等. 放牧家畜的践踏作用研究评述. 生态学报, 2004, 24(4): 784-789 [Hou F-J, Chang S-H, Yu Y-W, et al. A review on trampling by grazed livestock. Acta Ecologica Sinica, 2004, 24(4): 784-789]
[28] 王芳芳, 徐欢, 李婷, 等. 放牧对草地土壤氮素循环关键过程的影响与机制研究进展. 应用生态学报, 2019, 30(10): 3277-3284 [Wang F-F, Xu H, Li T, et al. Effects and mechanisms of grazing on key processes of soil nitrogen cycling in grassland: A review. Chinese Journal of Applied Ecology, 2019, 30(10): 3277-3284]
[29] 李晓梅, 赵晓英, 赵法, 等. 新疆3种锦鸡儿属植物种子萌发对温度和土壤水分的响应. 草业科学, 2009, 26(10): 140-145 [Li X-M, Zhao X-Y, Zhao F, et al. Response of seed germination of three Caragana species to temperature and soil moisture. Pratacultural Science, 2009, 26(10): 140-145]
[30] 李宁, 白冰, 鲁长虎. 植物种群更新限制——从种子生产到幼树建成. 生态学报, 2011, 31(21): 6624-6632 [Li N, Bai B, Lu C-H. Recruitment limitation of plant population: From seed production to sapling establishment. Acta Ecologica Sinica, 2011, 31(21): 6624-6632]