摘要
生物土壤结皮是由土壤微生物和藻类、地衣、苔藓等孢子植物与表层土壤颗粒胶结形成的有机复合体,在退化或受损生态系统中占据重要地位。生物土壤结皮不仅能够改善土壤结构,增强土壤稳定性,还能提高土壤养分含量和酶活性。过去有关生物结皮的研究主要集中在其对荒漠地区及干旱半干旱地区的功能和作用上,作为陆地生态系统中重要的地表覆被物,生物结皮还能够通过光合作用影响土壤有机碳、一氧化碳含量及其稳定性,近年来关于生物土壤结皮如何影响全球碳循环和碳平衡逐渐成为研究者的主流方向。该研究综述了生物结皮覆盖下土壤理化性质、土壤碳循环和土壤呼吸等方面的变化,总结了生物土壤结皮影响生态系统碳循环过程的研究工作和取得的成果,并对未来研究重点进行展望,旨在为实现“碳中和”目标提供新的参考。
Biological soil crust is an organic complex formed by the cementation of soil microorganisms and spore plants such as algae,lichens,and mosses with surface soil particles,occupying an important position in degraded or damaged ecosystems.Biological soil crust can not only improve soil structure,enhance soil stability,but also improve soil nutrient content and enzyme activity.In the past,research on biological crusts mainly focused on their functionand effects in desert and arid and semi-arid region.As an important surface cover in terrestrial ecosystem,biological crusts can also affect the content and stability of soil organic carbon,readily oxidizable carbon through photosynthesis.In recent years,how biological soil crusts affect the global carbon cycle and carbon balance has gradually become the mainstream direction of researchers.This study summarized the changes of soil physical and chemical properties,soil carbon cycle and soil respiration under biological crust mulching,summarized the research work and achievements of biological soil crust affecting the ecosystem carbon cycle,and looked forward to the future research focus,so as to provide new reference for achieving the goal of'carbon'neutrality'.
作者
韩梦梦
罗炘武
粟春青
宫彦章
HAN Mengmeng;LUO Xinwu;SU Chunqing;GONG Yanzhang(Shenzhen Wenke Garden Co.Ltd.,Shenzhen,Guangdong 518026)
出处
《北方园艺》
CAS
北大核心
2023年第24期132-137,共6页
Northern Horticulture
基金
深圳市科技计划资助项目(KCXFZ202002011006491)。
关键词
生物土壤结皮
土壤养分
土壤有机碳
碳循环
碳中和
biological soil crusts
soil nutrients
soil organic carbon
carbon cycle
carbon neutrality
