Research Articles

Plant diversity and seasonal dynamics in forest gaps of varying sizes in Pinus massoniana plantations

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  • 1Institute of Ecology & Forestry, College of Forestry, Sichuan Agricultural University, Chengdu, 611130, China
    2Key Laboratory of Ecological Forestry Engineering in Sichuan Province, Ya’an, Sichuan 625014, China

Received date: 2013-10-09

  Accepted date: 2014-03-28

  Online published: 2014-05-13

Abstract

Aims Pinus massoniana is the major plantation tree species in the low hilly lands of the upper Yangtze river valley for commercial purpose. The large areas of plantations have caused serious ecological problems such as biodiversity decline and soil degradation. Our objectives were to study the dynamics of species composition and plant diversity in forest gaps, to test the hypothesis that forest gaps facilitate the regeneration and plant diversity in P. massoniana plantations, and to determine the size of forest gaps that harbors the most complex compositional structure and the greatest plant diversity.
Methods We selected 39-year-old P. massoniana plantations with seven different gap sizes in the study, and used combination of systematic and representative sampling approaches. In the spring, summer, and autumn of 2013, sampling plots of the dimension 5 m × 5 m were laid out in the center of the forest gaps and under the canopy, and plants within each plot were surveyed for determination of their diversity and compositional structure.
Important findings The understory of P. massoniana plantations were dominated by phanerophyte plants, followed by hemicryptophytes, geophytes, and therophyte plants. The phanerophyte plants were more abundant under the canopy than in forest gaps. The large gaps had more phanerophyte plants, while the geophytes and therophyte plants were less frequent under the canopy than in the small gaps. The species richness and diversity were significantly lower under the canopy than in the large forest gaps. Moreover, species richness, dominance, and diversity differed significantly among the forest gaps of different sizes. Seasonally, the highest diversity occurred in summer, followed by autumn, with the spring having the lowest diversity. The greatest diversity was found in the forest gaps of the size 1225-1600 m2, which could be the optimal gap size for facilitating plant diversity and regeneration of vegetation in P. massoniana plantations.

Cite this article

CUI Ning-Jie,ZHANG Dan-Ju,LIU Yang,ZHANG Jian,YANG Wan-Qin,OU Jiang,ZHANG Jie,SONG Xiao-Yan,YIN Rui . Plant diversity and seasonal dynamics in forest gaps of varying sizes in Pinus massoniana plantations[J]. Chinese Journal of Plant Ecology, 2014 , 38(5) : 477 -490 . DOI: 10.3724/SP.J.1258.2014.00044

References

[1] Barichivich J, Briffa KR, Myneni RB, Osborn TJ, Melvin TM, Ciais P, Piao SL, Tucker C (2013). Large-scale variations in the vegetation growing season and annual cycle of atmospheric CO2 at high northern latitudes from 1950 to 2011. Global Change Biology, 19, 3167-3183.
[2] Chen XQ, Tan ZJ, Schwartz MD, Xu CX (2000). Determining the growing season of land vegetation on the basis of plant phenology and satellite data in Northern China. International Journal of Biometeorology, 44, 97-101.
[3] Day TA, Zhang ET, Ruhland CT (2007). Exposure to solar UV-B radiation accelerates mass and lignin loss of Larrea tridentata litter in the Sonoran Desert. Plant Ecology, 193, 185-194.
[4] Duan WB, Wang LX, Chen LX, Du S, Wei QS, Zhao JH (2013). Effects of forest gap size and light intensity on herbaceous plants in Pinus koraiensis-dominated broadleaved mixed forest. Chinese Journal of Applied Ecology, 24, 614-620. (in Chinese with English abstract)
[4] [ 段文标, 王丽霞, 陈立新, 杜珊, 魏全帅, 赵健慧 (2013). 红松阔叶混交林林隙大小及光照对草本植物的影响. 应用生态学报, 24, 614-620.]
[5] Dupuy JM, Chazdon RL (2008). Interacting effects of canopy gap, understory vegetation and leaf litter on tree seedling recruitment and composition in tropical secondary forests. Forest Ecology and Management, 255, 3716-3725.
[6] Elias RB, Dias E (2009). Gap dynamics and regeneration strategies in Juniperus-Laurus forests of the Azores Islands. Plant Ecology, 200, 179-189.
[7] Foereid B, Bellarby J, Meier-Augenstein W, Kemp H (2010). Does light exposure make plant litter more degradable? Plant and Soil, 333, 275-285.
[8] Gallo ME, Porras-Alfaro A, Odenbach KJ, Sinsabaugh RL (2009). Photoacceleration of plant litter decomposition in an arid environment. Soil Biology & Biochemistry, 41, 1433-1441.
[9] Gallo ME, Sinsabaugh RL, Cabaniss SE (2006). The role of ultraviolet radiation in litter decomposition in arid ecosystems. Applied Soil Ecology, 34, 82-91.
[10] Gao Y, Zhu KS, Hao JS, Xu LS (2013). An evaluation of the afforestation outcome of six tree species in more than 40 years in Mengshan Mountain, Shandong Province, China. Chinese Journal of Plant Ecology, 37, 728-738. (in Chinese with English abstract)
[10] [ 高远, 朱孔山, 郝加琛, 徐连升 (2013). 山东蒙山6种造林树种40余年成林效果评价. 植物生态学报, 37, 728-738.]
[11] Haghverdi K, Kiadaliri H, Sagheb-Talebi, Kooch Y (2012). Variability of plant diversity and soil features following gap creation in Caspian Beech Forests of Iran. Annals of Biological Research, 3, 4622-4635.
[12] Han WJ, Yuan XQ, Zhang WH (2012). Effects of gap size on seedling natural regeneration in artificial Pinus tabulaeformis plantation. Chinese Journal of Applied Ecology, 23, 2940-2948. (in Chinese with English abstract)
[12] [ 韩文娟, 袁晓青, 张文辉 (2012). 油松人工林林窗对幼苗天然更新的影响. 应用生态学报, 23, 2940-2948.]
[13] Hao ZQ, Zhao SD, Tao DL (1994). Species diversity and its seasonal dynamics of herbs in a broad-leaved Korean pine forest on the northern slope of the Changbai Mountain. Chinese Biodiversity, 2, 125-132. (in Chinese with English abstract)
[13] [ 郝占庆, 赵士洞, 陶大立 (1994). 长白山北坡阔叶红松林草本植物物种多样性及其季节动态. 生物多样性, 2, 125-132.]
[14] Henry HAL, Brizgys K, Field CB (2008). Litter decomposition in a California annual grassland: interactions between photodegradation and litter layer thickness. Ecosystems, 11, 545-554.
[15] Jiang FQ, Hu RJ, Zhang YW, Li XM, Tong L (2011). Variations and trends of onset, cessation and length of climatic growing season over Xinjiang, NW China. Theoretical and Applied Climatology, 106, 449-458.
[16] Li BB, Qin Y, Liu YQ, Liu XB, Huang XR (2012). Effects of gap size on regeneration of Pinus tabulaeformis plantation in the Yanshan Mountain. Scientia Silvae Sinicae, 48(6), 147-151. (in Chinese with English abstract)
[16] [ 李兵兵, 秦琰, 刘亚茜, 刘相兵, 黄选瑞 (2012). 燕山山地油松人工林林隙大小对更新的影响. 林业科学, 48(6), 147-151.]
[17] Li BH, Zhang J, Yao XL, Ye J, Wang XG, Hao ZQ (2008). Seasonal dynamics and spatial distribution patterns of herbs diversity in broadleaved Korean pine (Pinus koraiensis) mixed forest in Changbai Mountains. Chinese Journal of Applied Ecology, 19, 467-473. (in Chinese with English abstract)
[17] [ 李步杭, 张健, 姚晓琳, 叶吉, 王绪高, 郝占庆 (2008). 长白山阔叶红松林草本植物多样性季节动态及空间分布格局. 应用生态学报, 19, 467-473.]
[18] Li ZJ, Chen SB (2011). Community Ecology. Meteorological Press, Beijing. 66. (in Chinese)
[18] [ 李振基, 陈圣宾 (2011). 群落生态学. 气象出版社, 北京. 66.]
[19] Ma KP, Huang JH, Yu SL, Chen LZ (1995). Plant community diversity in Dongling Mountain, Beijing, China: II. Species richness, evenness and species diversities. Acta Ecologica Sinica, 15, 268-277. (in Chinese with English abstract)
[19] [ 马克平, 黄建辉, 于顺利, 陈灵芝 (1995). 北京东灵山地区植物群落多样性的研究: II. 丰富度、均匀度和物种多样性指数. 生态学报, 15, 268-277.]
[20] Mo JM, Peng SL, Brown S, Fang YT, Kong GH (2004). Nutrient dynamics in response to harvesting practices in a pine forest of subtropical China. Acta Phytoecologica Sinica, 28, 810-822. (in Chinese with English abstract)
[20] [ 莫江明, 彭少麟, Brown S, 方运霆, 孔国辉 (2004). 鼎湖山马尾松林植物养分积累动态及其对人为干扰的响应. 植物生态学报, 28, 810-822.]
[21] Nagaike T, Hayashi A, Abe M, Arai N (2003). Differences in plant species diversity in Larix kaempferi plantations of different ages in central Japan. Forest Ecology and Management, 183, 177-193.
[22] Raunkiaer C (1934). The Life Forms of Plants and Statistical Geographical. Clarendon Press, Oxford. 632.
[23] Roetzer T, Wittenzeller M, Haeckel H, Nekovar J (2000). Phenology in central Europe―differences and trends of spring phenophases in urban and rural areas. International Journal of Biometeorology, 44, 60-66.
[24] Verma RK, Kapoor KS, Rawat RS, Subramani SP, Kumar S (2005). Analysis of plant diversity in degraded and plantation forests in Kunihar forest division of Himachal Pradesh. Indian Journal of Forestry, 28, 11-16.
[25] Wang C, Wang XA, Wang L (2007). Plant species diversity and soil nutrient changes of different age Pinus tabulaeformis plantations and its relations with soil fertility. Chinese Journal of Ecology, 26, 1182-1186. (in Chinese with English abstract)
[25] [ 汪超, 王孝安, 王玲 (2007). 不同种植年代油松林植物多样性及土壤养分变化. 生态学杂志, 26, 1182-1186.]
[26] Wang MT (1987). Study on life-forms of evergreen broad- leaved forest in subtropics of China. Chinese Journal of Ecology, 6, 21-23, 17. (in Chinese with English abstract)
[26] [ 王梅峒 (1987). 中国亚热带常绿阔叶林生活型的研究. 生态学杂志, 6, 21-23, 17.]
[27] Wang MM, Hou FJ (2012). Influence of main factors on grass litter decomposition. Pratacultural Science, 29, 1631-1637. (in Chinese with English abstract)
[27] [ 王苗苗, 侯扶江 (2012). 草地凋落物分解的主要影响因素. 草业科学, 29, 1631-1637.]
[28] Whitmore TC (1989). Canopy gaps and the two major groups of forest trees. Ecology, 70, 536-538.
[29] Wu GL, Huang MY, Duan RY, Zhao K (2006). Effects of different traveling disturbances on the species diversity in Pinus taiwanensis communities. Acta Ecologica Sinica, 26, 3924-3930.
[30] Yan QL, Zhu JJ, Yu LZ (2012). Seed regeneration potential of canopy gaps at early formation stage in temperate secondary forests, Northeast China. PLoS ONE, 7(6), e39502.
[31] Yan QL, Zhu JJ, Zhang JP, Yu LZ, Hu ZB (2010). Spatial distribution pattern of soil seed bank in canopy gaps of various sizes in temperate secondary forests, Northeast China. Plant and Soil, 329, 469-480.
[32] Yan Y, Zeng YY, Zhang JH, Zhang JG, Zhong XH (2005). Diversity of plant species of alpine grassland in Nakchu of Tibet, China. Wuhan University Journal of Natural Sciences, 10, 659-664.
[33] Yu LZ, Yu SQ, Shi JW, Kong XW, Ding GQ, Lu ZM (2005). Higher plants species diversity in different types of artificial broad-leaved Korean pine forests. Chinese Journal of Ecology, 24, 1253-1257. (in Chinese with English abstract)
[33] [ 于立忠, 于水强, 史建伟, 孔祥文, 丁国泉, 卢正茂 (2005). 不同类型人工阔叶红松林高等植物物种多样性. 生态学杂志, 24, 1253-1257.]
[34] Zhang M, Zhu JJ, Yan QL (2012). Review on influence mechanisms of light in seed germination. Chinese Journal of Plant Ecology, 36, 899-908. (in Chinese with English abstract)
[34] [ 张敏, 朱教君, 闫巧玲 (2012). 光对种子萌发的影响机理研究进展. 植物生态学报, 36, 899-908.]
[35] Zhang YB, Wang KY, Kellom?ki S (2003). Advance in coniferous forest gap. World Science-Technology Research and Development, 25(5), 69-74. (in Chinese with English abstract)
[35] [ 张远彬, 王开运, Kellom?ki S (2003). 针叶林林窗研究进展. 世界科技研究与发展, 25(5), 69-74.]
[36] Zhao YJ (2007). Spatial Variation of Plant Diversity of Different Patch Following Environment Fragmentation on Leymus chinensis Meadow of Songnen Plain. Master degree dissertation, Northeast Normal University, Changchun. 19-20. (in Chinese)
[36] [ 赵玉晶 (2007). 松嫩平原羊草草甸环境破碎化后斑块植物多样性的空间变化. 硕士学位论文, 东北师范大学, 长春. 19-20.]
[37] Zhu JJ, Tan H, Li FQ, Chen M, Zhang JX (2007). Microclimate regimes following gap formation in a montane secondary forest of eastern Liaoning Province, China. Journal of Forestry Research, 18, 167-173.
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