增温对植物细根形态和化学计量特征的影响研究综述  

Effects of Warming on Morphology and Stoichiometry Characteristics of Plant Fine Roots:A Review

作　　者：吴帆 熊德成[1,2] 杨智杰 WU Fan;XIONG Decheng;YANG Zhijie(School of Geographical Sciences,Fujian Normal University,Fuzhou 350007,China;Fujian Sanming Forest Ecosystem National Observation and Research Station, Sanming 365000,Fujian,China)

机构地区：[1]福建师范大学地理科学学院,福州350007 [2]福建三明森林生态系统国家野外科学观测研究站,福建三明365000

出　　处：《亚热带资源与环境学报》2021年第4期86-91,共6页Journal of Subtropical Resources and Environment

基　　金：国家自然科学基金项目(32071743、31930071);国家重大基础研究计划课题(2014CB954003)。

摘　　要：全球变暖可直接或间接地影响植物的功能特征及生理过程,会对陆地生态系统的结构和功能产生重大影响。细根作为植物重要的吸收器官,在调节生态系统的生物地球化学循环中起着关键作用,对理解生态系统对全球气候变暖的响应非常重要。本研究在收集查阅国内外关于增温对植物细根功能性状影响的研究成果基础上,综述了增温对细根形态和养分特征的影响研究进展,并进一步探讨了该研究领域仍存在的不足与展望。今后应加强以下方面的研究:(1)结合不同增温方式,在更长时间尺度上对生态系统地上和地下部分同时增温研究其对植物生长的影响;(2)深入研究细根不同序级的形态和养分特征对增温的响应;(3)进一步研究增温对细根钾、钙、镁等元素和阔叶树种细根性状的影响;(4)从细根生理、代谢角度研究与细根形态和养分间的关系,以进一步分析增温对细根形态和养分变化影响的机理。研究结果将有助于进一步了解细根形态和化学计量特征对全球变暖的响应策略,并可为全球变暖背景下植物根系生态学的发展提供一定的理论参考。Global warming can directly or indirectly affect the functional characteristics and physiological processes of plants,and then on the structure and function of terrestrial ecosystems.As an important absorption organ of plants,fine roots play a key role in regulating the biogeochemical cycle of ecosystems,and are keys to understanding the response of ecosystems to global warming.This paper summarized the research progress of the effects of warming on the fine roots morphological and nutrient characteristics,and further discussed the deficiencies and prospects in this research field.Following research should be strengthened in the future:(1)Combining different warming methods,simultaneously warming the above-ground and belowground parts of the ecosystem on a longer time scale to study its impact on plant growth;(2)In-depth study the response of root morphology and nutrient characteristics of different root orders to warming;(3)Further study the effects of warming on fine root K,Ca,Mg and fine root traits of broad-leaved trees;(4)Analyze the relationship between fine root morphology and nutrients from the perspective of fine root physiology and metabolism to further analyze the mechanism of the effect of temperature increase on fine root morphology and nutrient changes.

关 键 词：增温 细根 形态特征 化学计量 

分 类 号：Q948[生物学—植物学]