植物与植物生理

黄土丘陵区典型人工林的根系分布特征

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  • 1. 河南省科学院地理研究所,河南 郑州 450052
    2. 华北水利水电大学测绘与地理信息学院,河南 郑州 450045
    3. 天津市市政工程设计研究院郑州分院,河南 郑州 450001
李浩(1995-),男,硕士研究生,主要从事植被恢复与土壤生态学的研究. E-mail: 876320273@qq.com

收稿日期: 2020-12-21

  修回日期: 2021-03-03

  网络出版日期: 2021-09-24

基金资助

国家自然科学基金项目(41801103);国家重点研发计划项目(2016YFC0501701);河南省科学院基本科研费项目(210601015);河南省重点研发与推广软科学研究项目(212400410341)

Root distribution characteristics of three typical plantations in a Loess Hills region

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  • 1. Institute of Geographical Science, Henan Academy of Sciences, Zhengzhou 450052, Henan, China
    2. College of Surveying and Geo-Informatics, North China University of Water Resource and Electric Power, Zhengzhou 450045, Henan, China
    3. Zhengzhou Branch, Tianjin Municipal Engineering Design & Research Institute, Zhengzhou 450001, Henan, China

Received date: 2020-12-21

  Revised date: 2021-03-03

  Online published: 2021-09-24

摘要

根系是植物吸收水分和养分的主要器官,发育及分布情况对植物生长具有极其重要的影响。本研究以甘肃省定西市安定区龙滩流域的人工白杨林、油松林以及山杏林为研究对象,分析了3种人工林总根及不同径级的根长、根面积、根生物量密度的垂直分布特征及其与土壤理化性质之间的关系,旨在从根系分布角度比较黄土丘陵区典型人工林之间的生长差异,为该区域植被恢复与评价提供一定的科学依据。研究结果表明:(1) 不同径级的根系分布中3种人工林均以细根为主,细根与总根的根长及根面积密度均表现为白杨林>油松林>山杏林,根生物量密度表现为油松林>白杨林>山杏林,而中根与粗根的根长及根面积密度均以油松林为最高。(2) 垂直土壤剖面上,3种人工林总根与细根的根长、根面积及根生物量密度整体上呈现出随土壤深度的增加而减少的趋势,而中根与粗根的垂直分布规律并不明显。(3) 细根和总根的根长密度、根面积密度、根生物量密度与土壤全碳、全氮、有机碳及含水量均呈极显著正相关关系,中根的根长及根面积密度与土壤全碳、全氮、全磷及有机碳含量呈显著相关关系,粗根的根长及根面积密度与土壤全碳呈显著相关关系,土壤碳氮含量以及含水量的增加与林木根系的生长在一定程度上存在协同效应。

本文引用格式

李浩,胡婵娟,赵荣钦,郭雷,满洲 . 黄土丘陵区典型人工林的根系分布特征[J]. 干旱区研究, 2021 , 38(5) : 1420 -1428 . DOI: 10.13866/j.azr.2021.05.24

Abstract

The root is the main organ through which plants absorb water and nutrients. The development and distribution of roots have an extremely important impact on plant growth. In order to understand the root distribution characteristics of typical artificial forests in Loess Hills areas and provide a scientific basis for vegetation restoration in the future, a case study was carried out on three artificial forests (Populus tomentosa, Pinus tabuliformis and Armeniaca sibirica), located in Longtan watershed, Anding District, Dingxi City, Gansu Province. The study analyzed root length density, root area density and root biomass density in different soil depths and diameter degrees, and the results showed that: (1) Fine roots of different diameter classes were dominant in all three artificial forests. The root length and root area densities of fine roots and total roots were the following: Populus tomentosa>Pinus tabulaeformis>Armeniaca sibirica, while the root biomass density was the following: Pinus tabulaeformis>Populus tomentosa>Armeniaca sibirica. The Pinus tabulaeformis forest had the highest root length and root area densities of middle roots and coarse roots. (2) In the vertical soil profile, the root length, root area, and root biomass densities of total and fine roots decreased with increasing soil depth. However, the vertical distribution feature of middle and coarse roots was not clear. (3) The root length density, root area density and root biomass density of fine and total roots were significantly and positively correlated with soil total carbon, total nitrogen, organic carbon, and water content. The root length and root area densities of middle roots were significantly correlated with soil total carbon, total nitrogen, total phosphorus, and organic carbon. The root length and root area densities of coarse roots were significantly correlated with soil total carbon. The increase in soil carbon, nitrogen and water contents had a synergistic effect on the growth of the root system to a certain extent.

参考文献

[1] Wang C, Ma Y, Troqisch S, et al. Soil respiration is driven by fine root biomass along a forest chronosequence in subtropical China[J]. Journal of Plant Ecology, 2017, 10(1): 36-46.
[2] Fitter A H, Sticklt R, Harvey M L, et al. Architectural analysis of plant root systems 1: Architectural correlates of exploitation efficiency[J]. New Phytologist, 1991, 118: 375-382.
[3] 张晓, 黄晓强, 信忠保, 等. 北京山区不同林分林下植被根系分布特征及其影响因素[J]. 北京林业大学学报, 2018, 40(4): 51-57.
[3] [ Zhang Xiao, Huang Xiaoqiang, Xin Zhongbao, et al. Distribution characteristics and its influencing factors of understory vegetation roots under the typical plantations in mountainous area of Beijing[J]. Journal of Beijing Forestry University, 2018, 40(4): 51-57. ]
[4] 张立恒, 王学全, 贾志清, 等. 高寒沙地不同林龄中间锦鸡儿人工林根系分布特征[J]. 干旱区资源与环境, 2018, 32(11): 163-168.
[4] [ Zhang Liheng, Wang Xuequan, Jia Zhiqing, et al. Root distribution characteristics of Caragana intermedia plantations at different ages in alpine sandy land[J]. Journal of Arid Land Resources and Environment, 2018, 32(11): 163-168. ]
[5] 张小全. 环境因子对树木细根生物量、生产与周转的影响[J]. 林业科学研究, 2001, 14(5): 566-573.
[5] [ Zhang Xiaoquan. Fine-root biomass, production and turnover of trees in relations to environmental conditions[J]. Forest Research, 2001, 14(5): 566-573. ]
[6] 李佳梅, 朱启良, 马璟, 等. 华北石质山地麻栎和刺槐混交林浅层细根特征[J]. 西北林学院学报, 2018, 33(1): 31-42.
[6] [ Li Jiamei, Zhu Qiliang, Ma Jing, et al. Comparison on fine root traits of Quercus accutissima and Robinia pseudoacacia in lower soil layer in rocky mountainous area of northern China[J]. Journal of Northwest Forestry University, 2018, 33(1): 31-42. ]
[7] Fort F, Cruz P, Catrice O, et al. Root functional trait syndromes and plasticity drive the ability of grassland Fabaceae to tolerate water and phosphorus shortage[J]. Environmental and Experimental Botany, 2015, 110: 62-72.
[8] Mueller K E, Blumenthal D M, Pendall E, et al. Impacts of warming and elevated CO2 on a semi-arid grassland are non-additive, shift with precipitation, and reverse over time[J]. Ecology Letters, 2016, 19(8): 956-966.
[9] Zhou M, Wang J, Bai W, et al. The response of root traits to precipitation change of herbaceous species in temperate steppes[J]. Functional Ecology, 2019, 33(10): 2030-2041.
[10] 姜琦, 陈光水, 郭润泉, 等. 增温与氮添加对杉木幼苗细根化学计量学的影响[J]. 生态学杂志, 2020, 39(3): 723-732.
[10] [ Jiang Qi, Chen Guangshui, Guo Runquan, et al. Effects of warming and nitrogen addition on fine root stoichiometry of Chinese fir seedlings[J]. Chinese Journal of Ecology, 2020, 39(3): 723-732. ]
[11] 刘瑞强. 亚热带常绿阔叶林演替过程中植物根系对土壤碳累积的影响及机制[D]. 上海: 华东师范大学, 2019.
[11] [ Liu Ruiqiang. Effects of Plant Roots on Soil Carbon Accumulation Along Subtropical Ever-Green Forest Successions[D]. Shanghai: East China Normal University, 2019. ]
[12] 张立恒, 李清雪, 王学全, 等. 高寒沙区中间锦鸡儿人工林细根动态及其周转[J]. 干旱区研究, 2020, 37(1): 215-222.
[12] [ Zhang Liheng, Li Qingxue, Wang Xuequan, et al. Biomass dynamics and turnover of fine roots of Caragana intermedia plantations in alpine sandy land[J]. Arid Zone Research, 2020, 37(1): 215-222. ]
[13] Williamson M H, Fitter A. The characters of successful invaders[J]. Biological Conservation, 1996, 78(1-2): 163-170.
[14] Pregitzer K S, Laskowski M J, Burton A J, et al. Variation in sugar maple root respiration with root diameter and soil depth[J]. Tree Physiology, 1998, 18(10): 665-670.
[15] 满洲, 胡婵娟, 冯德显, 等. 黄土丘陵区白杨纯林群落结构调整对土壤碳的影响[J]. 生态学杂志, 2018, 37(12): 37-44.
[15] [ Man Zhou, Hu Chanjuan, Feng Dexian, et al. Effect of community structure adjustment of pure Populus tomentosa planataion on soil carbon in the semi-arid Loess Plateau of China[J]. Chinese Journal of Ecology, 2018, 37(12): 37-44. ]
[16] 韩新生, 许浩, 蔡进军, 等. 宁南黄土丘陵区3种典型林分的结构与水文影响比较[J]. 水土保持学报, 2018, 32(6): 194-201.
[16] [ Han Xinsheng, Xu Hao, Cai Jinjun, et al. Comparison of structure and hydrological influence of three typical stands in Loess Hilly regions of southern Ningxia[J]. Journal of Soil and Water Conservation, 2018, 32(6): 194-201. ]
[17] 冯棋, 杨磊, 王晶, 等. 黄土丘陵区植被恢复的土壤碳水效应研究[J]. 生态学报, 2019, 39(18): 6598-6609.
[17] [ Feng Qi, Yang Lei, Wang Jing, et al. Response of soil moisture and soil organic carbon to vegetation restoration in deep soil profiles in Loess Hilly Region[J]. Acta Ecologica Sinica, 2019, 39(18): 6598-6609. ]
[18] 戴银月, 孙平生, 康迪, 等. 黄土丘陵区人工林细根生物量及其影响因素[J]. 生态学杂志, 2018, 37(8): 4-11.
[18] [ Dai Yinyue, Sun Pingsheng, Kang Di, et al. Fine root biomass of artificial forests in loess hilly region and its influencing factors[J]. Chinese Journal of Ecology, 2018, 37(8): 4-11. ]
[19] 张咪, 刘永峰, 贾艳梅, 等. 黄土高原刺槐细根形态特征和生物量研究[J]. 西北林学院学报, 2019, 34(2): 28-33.
[19] [ Zhang Mi, Liu Yongfeng, Jia Yanmei, et al. Fine root morphology and biomass of Robinia pseudoacacia in the loess plateau[J]. Journal of Northwest Forestry University, 2019, 34(2): 28-33. ]
[20] 瞿欢欢, 邓洪平, 梁盛, 等. 毛竹扩张对濒危植物桫椤根系形态可塑性的影响[J]. 生态学报, 2020, 40(4): 1219-1227.
[20] [ Qu Huanhuan, Deng Hongping, Liang Sheng, et al. Effects of Phyllostachys heterocycla expansion on morphological plasticity of endangered plant Alsophila spinulosa root system[J]. Acta Ecologica Sinica, 2020, 40(4): 1219-1227. ]
[21] 鲍士旦. 土壤农化分析[M]. 第3版. 北京: 中国农业出版社, 2000.
[21] [ Bao Shidan. Soil Analysis in Agricultural Chemistry[M]. 3rd ed. Beijing: China Agriculture Press, 2000. ]
[22] 侯海潮, 丁丽, 许中旗, 等. 燕山北部山地典型造林树种幼树根系分布特征[J]. 林业资源管理, 2018, 68(4): 10-16.
[22] [ Hou Haichao, Ding Li, Xu Zhongqi, et al. Root distribution of young trees of typical species in the northern region of Yanshan mountains[J]. Forest Resources Management, 2018, 68(4): 10-16. ]
[23] 罗达, 史彦江, 宋锋惠, 等. 平欧杂种榛细根空间分布特征[J]. 林业科学研究, 2019, 32(1): 81-89.
[23] [ Luo Da, Shi Yanjiang, Song Fenghui, et al. Spatial distribution characteristics of fine roots in monoculture system of Corylus heterophylla×Corylus avellana[J]. Forest Research, 2019, 32(1): 81-89. ]
[24] 陈柳娟, 钟全林, 李宝银, 等. 翅荚木人工林不同径阶间细根主要功能性状与根际土壤养分的关系[J]. 应用生态学报, 2019, 30(11): 3627-3634.
[24] [ Chen Liujuan, Zhong Quanlin, Li Baoyin, et al. Relationship between the main functional traits of fine root and the rhizosphere soil nutrients of different diameter classes in Zenia insignis plantation[J]. Chinese Journal of Applied Ecology, 2019, 30(11): 3627-3634. ]
[25] Zhuang L Y, Yang W Q, Wu F Z, et al. Diameter-related variations in root decomposition of three common subalpine tree species in southwestern China[J]. Geoderma, 2019, 311(1): 1-8.
[26] Pregitzer K S, Deforest J D, Burton A J, et al. Fine root architecture of nine North American trees[J]. Ecological Monographs, 2002, 72: 293-309.
[27] Gale M R, Grigal D E. Vertical root distributions of northern tree species in relation to successional status[J]. Canadian Journal of Forest Research, 1987, 17(8): 829-834.
[28] Benot C, Nicolas B, Courchesne F, et al. A cyclical but asynchronous pattern of fine root and woody biomass production in a hardwood forest of southern Quebec and its relationships with annual variation of temperature and nutrient availability[J]. Plant and Soil, 2003, 250(1): 49-57.
[29] 苏纪帅, 金晶炜, 白于, 等. 宁夏油松林细根生物量和土壤特性研究[J]. 西北林学院学报, 2014, 29(4) : 1-7.
[29] [ Su Jishuai, Jin Jingwei, Bai Yu, et al. Studies on fine root biomass and soil properties of Pinus tabulaeformis forests in Ningxia[J]. Journal of Northwest Forestry University, 2014, 29(4): 1-7. ]
[30] Pregitzer K S, Hendrick R L, Fogel R. The demography of fine roots in response to patches of water and nitrogen[J]. New Phytologist, 1993, 125(3): 575-580.
[31] 孙悦, 徐兴良, Yakov K K. 根际激发效应的发生机制及其生态重要性[J]. 植物生态学报, 2014, 38(1):62-75.
[31] [ Sun Yue, Xu Xingliang, Yakov K K. Mechanisms of rhizosphere priming effects and their ecological significance[J]. Chinese Journal of Plant Ecology, 2014, 38(1): 62-75. ]
[32] Kochsiek A, Tan S, Russo S E. Fine root dynamics in relation to nutrients in oligotrophic Bornean rain forest soils[J]. Plant Ecology, 2013, 214(6): 869-882.
[33] 钱文丽, 卢元, 王韶仲, 等. 混交对红松人工林细根生物量和空间分布的影响[J]. 东北林业大学学报, 2016, 44(2): 1-5.
[33] [ Qian Wenli, Lu Yuan, Wang Shaozhong, et al. Influence of species mixing on fine root biomass and spatial distribution in Pinus koraiensis plantation[J]. Journal of Northeast Forestry University, 2016, 44(2): 1-5. ]
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