摘要
细根在森林生态系统碳平衡和养分循环中具有重要作用。随着全球碳循环研究的开展,作为森林生态系统中土壤碳的主要来源,对细根的研究受到了广泛关注。在系统分析国内外大量研究报道的基础上,文中对影响细根生产和周转的非生物因素(土壤养分、温度、土壤水分及CO2浓度)和生物因素(土壤生物、细根形态及林分特征)进行总结和评述,分析根系研究中存在的问题,对今后的研究方向提出展望。
Fine roots（≤2mm in diameter） play important roles in carbon balance and nutrient recycling in forest ecosystem.With the development of the study on global carbon cycle,fine roots have attracted considerable attention as the main souce of soil carbon in forest ecosystem.On the basis of synthetic analysis of research reports in domestic and foreign literatures,we summarized and elaborated the major abiotic and biotic factors that control fine root production and turnover.The environmental factors included soil nutrient,soil temperature,soil moisture and the CO2 concentration.Soil organisms,fine root morphology and forest stand characteristics were discussed as biotic factors in this paper.Finally,we defined the problems arising in root system research and prospected the future research direction.
出处
《世界林业研究》
CSCD
北大核心
2012年第1期19-24,共6页
World Forestry Research
基金
国家林业局林业公益专项子专题(200804001)
中国林业科学研究院森林生态环境与保护研究所专项资金(CAFRIFEEP201006)
关键词
细根生产
细根周转
非生物因素
生物因素
fine root production
fine root turnover
abiotic factor
biotic factor
