CAJ | 학술논문

大气氮沉降增加是全球变化的重要现象之一，草原生态系统对氮沉降增加的响应成为草地生态学的研究热点之一。凋落物分解是草原生态系统养分循环和能量流动的主要途径，氮沉降增加引起草原植物群落结构变化，导致凋落物质量、土壤肥力、土壤微生物和土壤动物的变化，最终影响凋落物的分解。本文综述了氮沉降对草原凋落物结构、化学组成和分解环境的影响等方面的国内外最新研究进展，讨论了需进一步加强研究的内容，以期为进一步拓展该领域研究的广度和深度、为全面分析和评估全球变化对草原生态系统的影响提供参考。
대기담침강증가시전구변화적중요현상지일，초원생태계통대담침강증가적향응성위초지생태학적연구열점지일。조락물분해시초원생태계통양분순배화능량류동적주요도경，담침강증가인기초원식물군락결구변화，도치조락물질량、토양비력、토양미생물화토양동물적변화，최종영향조락물적분해。본문종술료담침강대초원조락물결구、화학조성화분해배경적영향등방면적국내외최신연구진전，토론료수진일보가강연구적내용，이기위진일보탁전해영역연구적엄도화심도、위전면분석화평고전구변화대초원생태계통적영향제공삼고。
As one of the important phenomena of global change, nitrogen deposition impact on ecosystem is now being taken seriously into consideration, especially its effect on grassland ecosystems. Therefore, it has become one of key research areas in grassland ecology to reveal the effects of nitrogen deposition on grassland litter decomposition which has already shown the influence. Litter decomposition is a key pro-cess of nutrients cycling and energy flowing in grassland ecosystem. Advanced N deposition can cause the change of phytocoenosium struc-ture, litter quantity, soil fertility, soil microorganism and animals, and finally affect litter decomposition. Based on the domestic and interna-tional progress of latest study, this paper reviewed main progresses on litter quality, chemical composition and environment of litter decompo-sition in the areas. Some topics should be focused on future in order to expand the research scope, analyze the problems comprehensively and evaluate the effect of global change on grassland ecosystem.