摘要
[目的]研究南方红壤侵蚀地不同恢复年限植被生态系统碳库储量,为该地区马尾松人工林制定合理的森林经营方式提供理论支持。[方法]以福建省长汀县河田镇裸地、不同恢复年限(10,20,30a生)马尾松人工林和天然次生林为研究对象,测定不同恢复阶段林地植被和土壤碳库储量。[结果]马尾松人工林植被恢复能够显著提高植被和土壤碳库储量。10a,20a,30a生马尾松人工林与裸地相比生态系统碳库储量分别增加2.80,3.54,8.56倍,但依然低于天然次生林;马尾松人工林植被恢复能够显著提高表层(0—10cm)土壤碳库储量,而对深层土壤碳库储量影响不显著;不同恢复阶段植被和土壤碳库增加速率不同,呈现非线性增加。[结论]南方红壤严重侵蚀地植被恢复能够增加生态系统碳库储量,但该地区土壤碳库的恢复是长期的缓慢过程。今后应加强南方红壤地区森林植被的保护,避免植被过度干扰和破坏而引起严重土壤侵蚀。
[Objective]To study the impacts of vegetation restoration stage on ecosystem carbon stocks of red soil regions in Southern China,in order to provide theoretical support for establishing reasonable forest management mode in Pinus massoniana plantation.[Methods]We studied the changes of carbon stocks in plant and soil pools in bare land,Pinus massoniana plantations with different age(10,20 and 30 years old),and natural secondary forests in Hetian Town,Changting County in Fujian Province.[Results]The restoration of P.massonianaplantations could significantly improve the ecosystem carbon stocks.Compared with bare land,the carbon stocks in 0—10,20—30,and 30 years old P.massonianaplantations was increased by 2.80,3.54 and 8.56 times,respectively,but still lower than that in natural secondary forest.The restoration of P.massonianaplantations could increase carbon stocks in the surface (0—10 cm) soil,but had no significant effect on the carbon stocks of deep soil.The increase rate of soil carbon storks was different at different vegetation restoration stages,showing a non-linear increase.[Conclusion]Vegetation restoration on the eroded red soils could improve ecosystem carbon stocks in Southern China,but soil C restoration in this region was a long-term and slow process.Thus,we should pay more attention to protect natural vegetation and avoid soil erosion induced by the vegetation deterioration.
作者
刘政
许文斌
田地
葛志强
刘骏
胡亚林
Liu Zheng;Xu Wenbin;Tian Di;Ge Zhiqiang;Liu Jun;Hu Yalin(Forest Ecology and Stable Isotope Centre,College of Forestry,Fujian Agriculture and Forestry University,Fuzhou,Fujian350002,China)
出处
《水土保持通报》
CSCD
北大核心
2019年第1期37-42,共6页
Bulletin of Soil and Water Conservation
基金
福建省科技计划对外合作项目"杉木和闽楠苗木P养分高效承载技术研发与示范"(201710001)
福建省高等学校新世纪优秀人才支持计划(KLa16056A)
国家重点实验室开放基金课题(Y20160022)
关键词
红壤侵蚀区
植被恢复
土壤碳储量
马尾松林
恢复阶段
red soil erosion region
vegetation restoration
soil carbon storage
Pinus massoniana plantation
restoration stage
