城市绿地土壤呼吸研究综述

The review of soil respiration in urban green space

土壤呼吸是生态系统碳循环的一个主要组成部分,它与生态系统生产力、区域及全球碳循环以及碳储存和碳交易密切相关。深入研究城市绿地土壤呼吸机制,确定调控土壤呼吸的主要因子,能够有效控制城市生态系统的碳释放,也有助于评估城市碳循环对环境变化的响应与反馈。该文综述国内外近年来(2007—2017)城市绿地土壤呼吸的研究现状和影响因素,土壤呼吸的时空异质性,分析未来城市绿地土壤呼吸的研究方向,为准确评估城市生态系统的碳源汇贡献、降低温室气体的浓度以及改善城市生态环境提供理论依据。

Soil respiration is a major component of the ecosystem carbon cycle,which is closely related to ecosystem productivity,regional and global carbon cycling and carbon storage and trading.Further study on the mechanism of the soil respiration and identifing the main factors that regulate the soil respiration in urban green space can effectively control carbon release in urban ecosystem is needed.And it is also helpful to evaluate the response and feedback to environmental changes in urban carbon cycle.In this paper,the research status,influencing factors and spatial-temporal heterogeneity of soil respiration were reviewed in recent years(2007-2017),and the future research direction of soil respiration was also analyzed in urban green space.It provides theoretical basis for accurately assess the contribution of carbon sources and storage sinks,reduce the concentration of greenhouse gases and improve the ecological environment in urban ecosystem.