非生长季温室气体排放研究进展

Overview of Researches on Greenhouse Gases Emissions during non-growing season

中高纬度或高海拔地区低温生态系统在非生长季的温室气体排放量虽然低,但其累积的释放量在年通量中占有不可忽视的比例。已有研究表明,非生长季温室气体的排放受植被类型、土壤理化性质、土壤微生物、地表覆盖物的有无及其厚度、土壤冻结及冻融循环等因素的影响。本文概述了非生长季温室气体的排放及其影响因素的研究结果以及该领域研究中尚待解决的一些问题。

Although the greenhouse gas emissions of low-temperature ecosystems in mid-latitudes and high-latitudes or high altitudes are low in non-growing seasons,the cumulative emissions of low-temperature ecosystems account for a significant proportion of the annual flux.Studies have shown that the emissions of greenhouse gases in non-growing seasons are affected by vegetation types,soil physical and chemical properties,soil microorganisms,the presence and thickness of surface coverings,soil freezing and freeze-thaw cycles,and other factors.This paper summarizes the research results of greenhouse gas emission and its influencing factors in non-growing season and some problems to be solved in this field.