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文中分析了森林植被、土壤属性、立地条件、气候条件以及凋落物和根系输入等自然因素对中国森林土壤碳储量的影响。森林植物种类组成决定了进入土壤的植物残体量和分解速率,导致土壤有机碳的含量及分布有很大差异。随着林龄的增加,土壤碳储量会呈现增加或产生波动2种情况。土壤理化性质影响土壤有机碳的含量,而土壤碳储量又影响着土壤结构、根系深度、土层特性、有效水分保持能力、土壤生物多样性等;海拔、坡度、坡向、坡位等立地条件对森林土壤有机碳储量的影响各不相同;温度、水分、CO2浓度等气候因子在森林土壤有机碳的蓄积过程中起着至关重要的作用;凋落物和根系对土壤的输入也可以改变土壤碳库。
The paper analyzes the effects of natural factors such as forest vegetation, soil properties, site conditions, climatic conditions, litter and root input on soil carbon storage in China. The species composition of forest plants determines the amount and decomposition rate of plant residues entering the soil, resulting in very different soil organic carbon content and distribution. With the increase of age, soil carbon storage will increase or produce two kinds of fluctuations. Soil physical and chemical properties affect the content of soil organic carbon, and soil carbon storage affects soil structure, root depth, soil characteristics, effective water retention capacity, soil biodiversity and so on; Site conditions such as altitude, slope, aspect, The effects of climate factors such as temperature, moisture and CO2 concentration on the accumulation of soil organic carbon play a crucial role in forest organic carbon storage. The input of litter and root system to soil can also change the soil Carbon pool.