利用土壤时间序列开展土壤磷的动态变化研究:进展和展望  

Overview of Soil Phosphorus Dynamics Using Soil Chronosequences:Progress and Prospects

作　　者：何俊波 吴艳宏[1] HE Junbo;WU Yanhong(Institute of Mountain Hazards and Environment,Chinese Academy of Sciences&Ministry of Water Resources,Chengdu 610299,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院、水利部成都山地灾害与环境研究所,成都610299 [2]中国科学院大学,北京100049

出　　处：《山地学报》2022年第6期801-810,共10页Mountain Research

基　　金：四川省重点研发项目(2018JZ0075);中国科学院对外合作重点项目(131551KYSB20190028)。

摘　　要：磷(P)是促进植物生长发育的重要元素,它显著影响着陆地生态系统的稳定。土壤P的动态变化主要受岩石风化与土壤发育过程的影响。利用土壤时间序列研究成土过程,并探讨这一过程中土壤P的动态变化,是近年来的研究热点。本文综述了这一方向的最新进展,总结了土壤时间序列的类型和利用土壤时间序列开展土壤P动态变化的相关研究,提出了研究展望:(1)在建立土壤时间序列时,应该更加关注土壤的发育程度,明确驱动土壤发育的主导因素,将驱动因素与土壤发育时间相结合,对土壤时间序列进行更加精细的划分;(2)利用土壤时间序列研究土壤P的动态变化时,需加深生物有效P的研究,并将生物有效P的动态变化与植被演替和微生物群落结构变化相结合;(3)研究土壤P的动态变化时,也需关注碳(C)、氮(N)等其他养分元素的迁移与转化,并探究成土过程中C、N等土壤元素对土壤P的影响。Phosphorus(P)is an essential nutrient for plant growth,and dominates the stability of terrestrial ecosystems.Changes in P content in soils are primarily governed by rock weathering and pedogenesis.Investigations into the process of soil formation using chronosequences and its dynamics has been an research highlight in soil science for recent years.In this study,it tried to sketch out the research achievements on soil P dynamics;it addressed the types of chronosequences and the updates relative to soil P dynamics using chronosequences.According to the overview of soil phosphorus dynamics,the following research prospect and emphasis are concluded.(1)In the case of constructing a chronosequence,more attentions should focus attention on the phase of soil development,as well as on the dominant factors which drive soil evolution.A integrated research on the drivers along with soil development time should be made to properly chronicle the chronosequences.(2)As applying chronosequences to study the changes in soil P,the changes in bioavailable P should be traced by with inclusion of the succession of vegetation and the structural adaption in microbial community.(3)It is also necessary to investigate the migration and transformation of other nutrient elements,such as carbon(C)and nitrogen(N),for their effects on soil P during pedogenesis.

关 键 词：土壤时间序列 成土作用 生物地球化学循环 土壤磷 生物有效磷 

分 类 号：P951[天文地球—自然地理学]