马尾松人工林生态系统碳库的研究进展  

Research advances in ecosystem carbon stock of Pinus massoniana plantation

作　　者：曾嬿冰 周运超[2] 汪建文[3] ZENG Yanbing;ZHOU Yunchao;WANG Jianwen(Huaxi District Agriculture Bureau,Guiyang 550025,China;College of Forestry,Guizhou University,Guiyang 550025,China;Guizhou Academy of Sciences,Guiyang 550025,China)

机构地区：[1]贵州省贵阳市花溪区农业局,贵州贵阳550025 [2]贵州大学林学院,贵州贵阳550025 [3]贵州省科学院,贵州贵阳550025

出　　处：《贵州科学》2018年第5期74-82,共9页Guizhou Science

基　　金：马尾松人工林地力长期维护和调控技术(2017YFD0600304);贵州省一流学科建设项目(GNYL[2017]007);贵州省科技计划(黔科合支撑2018-2305);贵州省科研机构服务企业行动计划(编号:黔科合服企[2015]4013号)

摘　　要：碳循环研究是全球气候变暖大背景下应运而生的科学热点,碳循环作为地球系统中伴随着各种复杂的物质循环和能量流动工程,它的动态变化必然对气候产生重大影响。自20世纪50年代以来,大量化石燃料被开采利用,人工合成化学氮肥的产量和用量日益增加,森林及土地利用状况的急剧变化等,使人为产生的温室气体排放量不断增加从而打破了生态系统碳循环的自然平衡状态。森林在全球生态系统中扮演了不可或缺的角色,森林演替的动态直接影响到全球生态系统的碳循环及碳储量动态。目前,人工林种植已成为我国增加森林绿地面积必不可少的一项工程,而马尾松由于其适应性强,栽植范围广,易存活等特点而成为我国主要的荒山造林树种之一,我国有大量的马尾松林地,然而如何应用这有限的土地资源来达到增值增汇效应是我们目前值得思考的一个问题。研究马尾松林分土壤有机碳动态,掌握其碳循环机制及碳的有效固定过程可有效的增加林地增汇效应,以期对减排,减缓全球气候变暖等提供理论基础。Carbon cycle research is a scientific hotspot that emerged under the background of global warming. The carbon cycle is accompanied by various complex material cycles and energy flow,and its dynamic changes will inevitably have great impact on the climate. Since the 1950 s,huge amount of fossil fuel have been exploited,the production and use of synthetic chemical nitrogen fertilizer have been increasing,and the rapid changes in forest and land use conditions have led to the constant increase of artificially generated greenhouse gas emission,thus breaking the natural equilibrium state of the ecosystem＇s carbon cycle. Forests play an indispensable role in the global ecosystem. The dynamics of forest succession directly affect the carbon cycle and carbon stock of the global ecosystem. At present,plantation has become an indispensable way to increase forest area in China. Due to its strong adaptability,Pinus massoniana has become one of the main tree species for barren mountain afforestation in China,and there are a large number of Pinus massoniana plantations. However,how to use the limited land resources to increase the carbon sink is a problem worth thinking about. Studying the soil organic carbon dynamics of Pinus massoniana forest and mastering its carbon cycle mechanism and carbon fixation process is an effective way to increase carbon sink,and can provide a theoretical basis for reducing emissions and slowing global warming.

关 键 词：马尾松人工林 碳循环 碳固定 

分 类 号：S719[农业科学—林学]