CAJ | 학술논문

由人类活动引起的温室效应以及由此造成的气候变暖对森林牛态系统的影响已引起人们的普遍关注.森林土壤碳循环作为全球碳循环的重要组成部分,是决定未来陆地牛物嘲表现为碳源/碳汇的关键环节,揭示这一作用对于准确理解全球变化背景下陆地生态系统碳循环过程具有重要的指导意义.本文主要通过论述影响土壤碳循环过程的5个方面(土壤呼吸、土壤微生物、土壤酶活性、凋落物输入与分解、土壤碳库),综述了近10 a来全球气候变暖对土壤碳循环过程的影响.近年来,尽管已开展了大量有关土壤碳循环对气候变暖的响应及反馈机制的研究,并取得了一定的成果,但研究结果仍然存在很大的不确定性.整合各种密切关联的全球变化现象,完善研究方法和实验手段,加强根际微生态系统碳循环过程与机理研究将是下一步研究的方向和重点.参70
유인류활동인기적온실효응이급유차조성적기후변난대삼림우태계통적영향이인기인문적보편관주.삼림토양탄순배작위전구탄순배적중요조성부분,시결정미래륙지우물조표현위탄원/탄회적관건배절,게시저일작용대우준학리해전구변화배경하륙지생태계통탄순배과정구유중요적지도의의.본문주요통과논술영향토양탄순배과정적5개방면(토양호흡、토양미생물、토양매활성、조락물수입여분해、토양탄고),종술료근10 a래전구기후변난대토양탄순배과정적영향.근년래,진관이개전료대량유관토양탄순배대기후변난적향응급반궤궤제적연구,병취득료일정적성과,단연구결과잉연존재흔대적불학정성.정합각충밀절관련적전구변화현상,완선연구방법화실험수단,가강근제미생태계통탄순배과정여궤리연구장시하일보연구적방향화중점.삼70
Greater attention has been paid to human-induced climate warming, resulting from the enhanced greenhouse gases, and its impacts on forest ecosystems. As an important component of the global carbon cycling, gaining a better understanding of the responses of soil carbon cycling processes to climate warming is critical for predicting the changes in terrestrial ecosystem carbon cycling in the future. This paper reviews the recent progress of the research on climate warming and the factors influencing soil carbon cycling, including soil respiration, microbes, litterfall input and decomposition, enzyme activity and carbon pool. Recently, the effects of climate warming on soil carbon cycling have aroused great concern, but there remains a fundamental uncertainty regarding the research results. To advance our understanding of how climate change influences the soil carbon cycling of forest ecosystem, further studies are needed to address multifactor experiments in the field and enhance the interaction between field studies and modeling approaches. Also, there is an urgent need to analyze the distribution and fate of carbon fluxes in rhizosphere microecological system under climate change. Ref 70