酸性森林土壤缓冲酸沉降关键机理研究进展

A Review of the Key Mechanisms of Acidic Forest Soils to Buffer Acid Deposition

摘要:

对有关酸性森林土壤如何缓冲酸沉降的研究进行了综述，从土壤矿物风化与离子交换反应、有机质的作用，和其他生命与非生命因素方面去探讨酸性森林土壤缓冲酸沉降的关键机理，旨在加深人们对酸性森林土壤响应酸沉降模式与缓冲机制的理解，从而更好地预测酸沉降背景下酸性森林土壤的酸化进程及其负面效应，为制定科学合理的森林经营管理措施，维持整个森林生态系统的稳定与生态服务功能提供科学借鉴。

Abstract:

Acidic forest soils are highly weathered with low pH and base saturation (BS), and thus a weak acid buffering capacity. However, whether or not these acidic forest soils can continue buffering elevated anthropogenic acid deposition remain largely unknown and controversial. The acidification processes in acidic forest soils from domestic and foreign studies were reviewed, aiming to advance people's understanding of the response patterns and key buffering mechanisms of acidic forest soils to elevated anthropogenic acid deposition. The adverse effects of acid deposition-induced soil acidification in forest ecosystems will be predicted and disposed, and some references to forest management and maintaining the stability of those affected forest ecosystems and their services were also provided.