毛竹种群向常绿阔叶林扩张的细根策略
网络出版日期: 2014-02-12
基金资助
国家自然科学基金(31260120);国家自然科学基金(3117-0306);江西省自然科学基金(20122BAB204019)
Strategy of fine root expansion of Phyllostachys pubescens population into evergreen broad- leaved forest
Online published: 2014-02-12
为了探讨毛竹(Phyllostachys pubescens)种群向常绿阔叶林扩张的根系策略, 该文采用根钻法和内生长法, 在江西大岗山选取毛竹林与阔叶林的交错区——竹阔界面(bamboo-broad-leaved forest interface), 并垂直于界面连续设置毛竹林、毛竹与阔叶树的混交林(以下简称为竹阔混交林)、常绿阔叶林3种样地, 比较分析其细根的空间分布格局、比根长、根长密度、生长速率和周转率等指标。结果表明: 毛竹林细根生物量(1201.60 g·m-2) >竹阔混交林(601.18 g·m -2) >常绿阔叶林(204.88 g·m -2); 在毛竹与阔叶树竞争的混交林中, 毛竹细根分布趋向于上层土壤(与毛竹林细根相比), 且其比根长也显著增加, 平均增幅高达123.42%, 总根长密度比阔叶树大2.1倍; 同时, 毛竹细根生长速率和周转率均高于阔叶树。这些结果说明毛竹可通过广布、精准、灵活、快速等细根竞争策略, 提高资源获取能力, 实现种群扩张。
刘骏, 杨清培, 宋庆妮, 余定坤, 杨光耀, 祁红艳, 施建敏 . 毛竹种群向常绿阔叶林扩张的细根策略[J]. 植物生态学报, 2013 , 37(3) : 230 -238 . DOI: 10.3724/SP.J.1258.2013.00023
Aims Roots, particularly fine roots, play an important role in interspecies competition. Our objective was to study the spatial distribution, morphological characteristics and growth rates of fine roots in both bamboo (Phyllostachys pubescens) and broad-leaved trees to better understand the mechanisms of expansion of bamboo into evergreen broad-leaved forest.
Methods We continuously sampled P. pubescens forest (PPF), bamboo-broad-leaved mixed forest (BMF) and evergreen broad-leaved forest (EBF) perpendicular to a bamboo-broad-leaved forest interface on Dagang Mountain, Jiangxi Province, China. The live fine root biomass, specific root length (SRL), root length density (RLD), fine root growth and turnover rates were comparatively analyzed by soil core and ingrowth methods.
Important findings Fine root biomass of PPF (1201.60 g·m-2) was much larger than that of BMF (601.18 g·m-2) and EBF (204.88 g·m-2). Vertical stratification of bamboo fine roots in BMF was found to shift from lower to upper soil layers, SRL of bamboo significantly increased by 123.42% and average RLD of bamboo was 210.0% greater than that of broad-leaved trees. In addition, both growth and turnover rates of bamboo fine roots were faster than those of trees. Findings indicated that P. pubescens, with wide, precise, flexible and fast nutrient access and space-occupation abilities, would outcompete trees belowground, resulting in expansion of its population into evergreen broad-leaved forest.
| [1] | Bauhus J, Messier C (1999). Soil exploitation strategies of fine roots in different tree species of the southern boreal forest of eastern Canada. Canadian Journal of Forest Research, 29, 260-273. |
| [2] | Bolte A, Villanueva I (2006). Interspecific competition impacts on the morphology and distribution of fine roots in European beech (Fagus sylvatica L.) and Norway spruce (Picea abies (L.) Karst.) European Journal of Forest Research, 125, 15-26. |
| [3] | Brassard BW, Chen HYH, Bergeron Y, Paré D (2011). Differences in ?ne root productivity between mixed- and single-species stands. Functional Ecology, 25, 238-246. |
| [4] | Campbell BD, Grime JP, Mackey JML (1991). A trade-off between scale and precision in resource foraging. Oecologia, 87, 532-538. |
| [5] | Casper BB, Jackson RB (1997). Plant competition underground. Annual Review of Ecology and Systematics, 28, 545-570. |
| [6] | Chakraborty A, Li BL (2009). Plant-to-plant direct competition for belowground resource in an overlapping depletion zone. Journal of Arid Land, 1, 9-15. |
| [7] | Curt T, Prévosto B (2003). Rooting strategy of naturally regenerated beech in silver birch and Scots pine woodlands. Plant and Soil, 255, 265-279. |
| [8] | Davis JP, Haines B, Coleman D, Hendrick R (2004). Fine root dynamics along an elevational gradient in the southern Appalachian Mountains, USA. Forest Ecology and Management, 187, 19-34. |
| [9] | Ding LX, Wang ZL, Zhou GM, Du QZ (2006). Monitoring Phyllostachys pubescens stands expansion in national nature reserve of Mount Tianmu by remote sensing. Journal of Zhejiang Forestry College, 23, 297-300. (in Chinese with English abstract) |
| [9] | [ 丁丽霞, 王祖良, 周国模, 杜晴洲 (2006). 天目山国家级自然保护区毛竹林扩张遥感监测. 浙江林学院学报, 23, 297-300.] |
| [10] | Eissenstat DM, Wells CE, Yanai RD, Whitbeck JL (2000). Building roots in a changing environment: implications for root longevity. New Phytologist, 147, 33-42. |
| [11] | Einsmann JC, Jones RH, Mou P, Mitchell RJ (1999). Nutrient foraging traits in 10 co-occurring plant species of contrasting life forms. Journal of Ecology, 87, 609-619. |
| [12] | Fransen B, Blijjenberg J, Kroon H (1999). Root morphological and physiological plasticity of perennial grass species and the exploitation of spatial and temporal heterogeneous nutrient patches. Plant and Soil, 211, 179-189. |
| [13] | Fujii S, Kasuya N (2008). Fine root biomass and morphology of Pinus densiflora under competitive stress by Chamaecyparis obtusa. Journal of Forest Research, 13, 185-189. |
| [14] | Gersani M, Brown JS, O’Brien EE, Maina GM, Abramsky Z (2001). Tragedy of the commons as a result of root competition. Journal of Ecology, 89, 660-669. |
| [15] | Heinsoo K, Merilo E, Petrovits M, Koppel A (2009). Fine root biomass and production in a Salix viminalis and Salix dasyclados plantation. Estonian Journal of Ecology, 58, 27-37. |
| [16] | Hodge A (2004). The plastic plant: root responses to heterogeneous supplies of nutrients. New Phytologist, 162, 9-24. |
| [17] | Isagi Y, Torii A (1998). Range expansion and its mechanisms in a naturalized bamboo species, Phyllostachys pubescens, in Japan. Journal of Sustainable Forestry, 6, 127-141. |
| [18] | Johnson HA, Biondini ME (2001). Root morphological plasticity and nitrogen uptake of 59 plant species from the Great Plains grasslands, U.S.A. Basic and Applied Ecology, 2, 127-143. |
| [19] | Johnson MG, Tingey DT, Phillips DL, Storm MJ (2001). Advancing fine root research with minirhizotrons. Environmental and Experimental Botany, 45, 263-289. |
| [20] | Kalliokoski T, Pennanen T, Nygren P, Siev?nen R, Helmisaari HS (2010). Belowground interspecific competition in mixed boreal forests: fine root and ectomycorrhiza characteristics along stand developmental stage and soil fertility gradients. Plant and Soil, 330, 73-89. |
| [21] | Kiyoshi O, Shigeyuki S, Hiroko F (1996). Causal analysis of the invasion of broad-leaved forest by bamboo in Japan. Journal of Vegetation Science, 7, 723-728. |
| [22] | Kroons H, Hutchings MJ (1995). Morphological plasticity in clonal plants: the foraging concept reconsidered. Journal of Ecology, 83, 143-152. |
| [23] | Lei PF, Scherer-Lorenzen M, Bauhus J (2012). The effect of tree species diversity on fine-root production in a young temperate forest. Oecologia, 169, 1105-1115. |
| [24] | Li WC, Sheng HY, Zhong ZK (2006). Importance of long-term location investigation for bamboo ecosystem. Scientia Silvae Sinicae, 42(8), 95-101. (in Chinese with English abstract) |
| [24] | [ 李伟成, 盛海燕, 钟哲科 (2006). 竹林生态系统及其长期定位观测研究的重要性. 林业科学, 42(8), 95-101.] |
| [25] | Liu GH, Li HK (2002). Bamboo rhizome system of mixed forest of Sassafras tsumu and Phyllostachys pubesens. Chinese Journal of Applied Ecology, 13, 385-389. (in Chinese with English abstract) |
| [25] | [ 刘桂华, 李宏开 (2002). 檫树毛竹混交林中毛竹鞭根的研究. 应用生态学报, 13, 385-389.] |
| [26] | Livesley SJ, Gregory PJ, Buresh RJ (2000). Competition in tree row agroforestry systems. 1. Distribution and dynamics of fine root length and biomass. Plant and Soil, 227, 149-161. |
| [27] | Mei L, Han YZ, Yu SQ, Shi JW, Wang ZQ (2006). Impact factors on fine roots seasonal dynamics in Fraxinus mandshurica plantation. Scientia Silvae Sinicae, 42(9), 7-12. (in Chinese with English abstract) |
| [27] | [ 梅莉, 韩有志, 于水强, 史建伟, 王政权 (2006). 水曲柳人工林细根季节动态及其影响因素. 林业科学, 42(9), 7-12.] |
| [28] | Metcalfe DB, Meir P, Arag?o LEOC, Costa ACL, Braga AP, Goncalves PHL, Junior JAS, Almeida SSA, Dawson LA, Malhi Y, Williams M (2008). The effects of water availability on root growth and morphology in an Amazon rainforest. Plant and Soil, 311, 189-199. |
| [29] | Ostonen I, Püttsepp ü, Biel C, Alberton O, Bakker MR, L?hmus K, Majdi H, Metcalfe D, Olsthoorn AFM, Pronk A, Vanguelova E, Weih M, Brunner I (2007). Specific root length as an indicator of environmental change. Plant Biosystems, 141, 426-442. |
| [30] | Palacio S, Montserrat-Martí G (2007). Above and belowground phenology of four Mediterranean sub-shrubs. Preliminary results on root-shoot competition. Journal of Arid Environments, 68, 522-533. |
| [31] | Pei ZQ, Zhou Y, Zheng YR, Xiao CW (2011). Contribution of fine root turnover to the soil organic carbon cycling in a Reaumuria soongorica community in an arid ecosystem of Xinjiang Uygur Autonomous Region, China. Chinese Journal of Plant Ecology, 35, 1182-1191. (in Chinese with English abstract) |
| [31] | [ 裴智琴, 周勇, 郑元润, 肖春旺 (2011). 干旱区琵琶柴群落细根周转对土壤有机碳循环的贡献. 植物生态学报, 35, 1182-1191.] |
| [32] | Persson H? (1983). The distribution and productivity of fine roots in boreal forests. Plant and Soil, 71, 87-101. |
| [33] | Pregitzer KS, Laskowski MJ, Burton AJ, Lessard VC, Zak DR (1998). Variation in sugar maple root respiration with root diameter and soil depth. Tree Physiology, 18, 665-670. |
| [34] | Schmid I, Kazda M (2002). Root distribution of Norway spruce in monospecific and mixed stands on different soils. Forest Ecology and Management, 159, 37-47. |
| [35] | Shi JW, Wang MB, Chen JW, Cao JT (2011). The spatial distribution and seasonal dynamics of fine roots in a mature Caragana korshinskii plantation. Acta Ecologica Sinica, 31, 726-733. (in Chinese with English abstract) |
| [35] | [ 史建伟, 王孟本, 陈建文, 曹建庭 (2011). 柠条细根的空间分布特征及其季节动态. 生态学报, 31, 726-733.] |
| [36] | Sobkowicz P (2005). Shoot and root competition between spring triticale and field beans during early growth. Acta Scientiarum Polonorum, Agricultura, 4, 117-126. |
| [37] | Wang L, Zhong CG, Cai J, Jiang ZM, Zhang SX (2011). Spatial distribution and morphological variations of the fine roots in walnut-wheat intercropping agroforestry ecosystem. Journal of Northwest A & F University, 39, 64-70. (in Chinese with English abstract) |
| [37] | [ 王来, 仲崇高, 蔡靖, 姜在民, 张硕新 (2011). 核桃-小麦复合系统中细根的分布及形态变异研究. 西北农林科技大学学报, 39, 64-70.] |
| [38] | Wang QC, Cheng YH (2004). Response of fine roots to soil nutrient spatial heterogeneity. Chinese Journal of Applied Ecology, 15, 1063-1068. (in Chinese with English abstract) |
| [38] | [ 王庆成, 程云环 (2004). 土壤养分空间异质性与植物根系的觅食反应. 应用生态学报, 15, 1063-1068.] |
| [39] | Wen DZ, Wei P, Kong GH, Ye WH (1999). Production and turnover rate of fine roots in two lower subtropical forest sites at Dinghushan. Acta Phytoecologica Sinica, 23, 361-369. (in Chinese with English abstract) |
| [39] | [ 温达志, 魏平, 孔国辉, 叶万辉 (1999). 鼎湖山南亚热带森林细根生产力与周转. 植物生态学报, 23, 361-369.] |
| [40] | Wijesinghe DK, John EA, Beurskens S, Hutchings MJ (2001). Root system size and precision in nutrient foraging: responses to spatial pattern of nutrient supply in six herbaceous species. Journal of Ecology, 89, 972-983. |
| [41] | Xiong GH, Zhang CH, Lou ZH, Zhang ZZ, Hu QG (2007). Study on rhizome- culm system of Phyllostachys heterocycla—bamboo-tree. Jiangxi Forestry Science and Technology, (4), 21-26. (in Chinese with English abstract) |
| [41] | [ 熊国辉, 张朝晖, 楼浙辉, 张振洲, 胡庆国 (2007). 毛竹林鞭竹系统——“竹树”研究. 江西林业科技, (4), 21-26.] |
| [42] | Yang QP, Wang B, Guo QR, Zhao GD, Fang K, Liu YQ (2011). Effects of Phyllostachys edulis expansion on carbon storage of evergreen broad-leaved forest in Dagangshan Mountain, Jiangxi. Acta Agriculturae Universitatis Jiangxiensis, 33, 529-536. (in Chinese with English abstract) |
| [42] | [ 杨清培, 王兵, 郭起荣, 赵广东, 方楷, 刘苑秋 (2011). 大岗山毛竹扩张对常绿阔叶林生态系统碳储特征的影响. 江西农业大学学报, 33, 529-536.] |
| [43] | Yi TP, Shi JY, Ma LS, Wang HT, Yang L (2008). Chinese Bamboo Atlas. Science Press. Beijing. (in Chinese) |
| [43] | [ 易同培, 史军义, 马丽莎, 王海涛, 杨林 (2008). 中国竹类图志 科学出版社, 北京.] |
| [44] | Zamora DS, Jose S, Nair PKR (2007). Morphological plasticity of cotton roots in response to interspeci?c competition with pecan in an alleycropping system in the southern United States. Agroforestry Systems, 69, 107-116. |
| [45] | Zheng YS, Wang SF (2000). Study on bamboo underground structure of mixed forest of Chinese fir and bamboo. Scientia Silvae Sinicae, 36(6), 69-72. (in Chinese with English abstract) |
| [45] | [ 郑郁善, 王舒凤 (2000). 杉木毛竹混交林的毛竹地下鞭根结构特征研究. 林业科学, 36(6), 69-72.] |
| [46] | Zhou ZC, Shangguan ZP (2006). Vertical distribution of fine roots in relation to soil factors in Pinus tabulaeformis Carr forest of the Loess Plateau of China. Plant and Soil, 291, 119-129. |
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