CAJ | 학술논문

植物根系呼吸是土壤呼吸的主要组成部分，与陆地生态系统碳循环和气候变化密切相关。根呼吸的研究对生态系统碳收支及生物圈碳平衡有重要意义。植物根呼吸受环境及生物等多种因素影响，根呼吸速率及其对土壤总呼吸的贡献在不同生态系统有较大的差异性。根呼吸的测定主要通过离体根法、同位素法及 PVC 管气室法等直接方法和排根法、计算法等间接方法进行测定或估算。植物根呼吸主要受土壤温度、湿度、养分及根直径、根级、根生物量及菌根等因素影响。本文从根呼吸主要研究方法和影响根呼吸因素两方面对已有的研究进行简要的综述，旨在为植物根呼吸研究提供理论依据，并根据目前的研究现状，对相关内容进行展望。
식물근계호흡시토양호흡적주요조성부분，여륙지생태계통탄순배화기후변화밀절상관。근호흡적연구대생태계통탄수지급생물권탄평형유중요의의。식물근호흡수배경급생물등다충인소영향，근호흡속솔급기대토양총호흡적공헌재불동생태계통유교대적차이성。근호흡적측정주요통과리체근법、동위소법급 PVC 관기실법등직접방법화배근법、계산법등간접방법진행측정혹고산。식물근호흡주요수토양온도、습도、양분급근직경、근급、근생물량급균근등인소영향。본문종근호흡주요연구방법화영향근호흡인소량방면대이유적연구진행간요적종술，지재위식물근호흡연구제공이론의거，병근거목전적연구현상，대상관내용진행전망。
Plant root respiration is the dominant component of total soil respiration,which in turn is closely re-lated to the carbon cycle of terrestrial ecosystems and a significant factor in global climate change.Research fo-cused on plant root respiration is critical for understanding ecosystem carbon budgets and the biosphere’s car-bon balance.Root respiration is affected by both environmental and biotic factors.Root respiration rates and their contribution to soil respiration varies greatly in different ecosystems.The main methodologies in research on root respiration include direct measurement (such as isolated methods/in vitro root methods,isotopic meth-ods and cuvette methods)and indirect methods (such as the root exclusion method and calculation method). Plant root respiration is affected by soil temperature and humidity,nutrition condition and root size,root or-der,root biomass and root mycorrhiza.This paper reviews the various methodologies and factors held to influ-ence plant root respiration in order to provide the basic theory needed for subsequent research.Future research directions are also suggested.