人工修复措施对严重退化红壤固碳效益的影响  

Effects of Human Induced Vegetation Rehabilitation on Carbon Fixation Benefit in Seriously Degraded Red Soil

作　　者：黄荣珍[1] 樊后保[1] 李凤[1] 肖龙 

机构地区：[1]南昌工程学院生态环境系,江西南昌330099 [2]泰和县水土保持站,江西泰和343700

出　　处：《水土保持通报》2010年第2期60-64,共5页Bulletin of Soil and Water Conservation

基　　金：江西省教育厅科技项目"不同生态修复措施林分‘碳汇’功能及效益研究"(GJJ09372);江西省教育厅科技项目"赣中南红壤旱坡地果园的可持续经营研究"[赣教技字(2007)341号];江西省水利厅科技项目"赣中南红壤侵蚀区生态修复技术及其综合效益研究"(200712)

摘　　要：固碳效益是侵蚀退化地水土保持效益的重要组成部分,其对全面评价生态修复意义重大。从人工促进生态修复林分固碳功能出发,以裸露地为对照,不同人工修复措施林分为研究对象,对其碳储量及固碳价值进行了研究。结果表明,人工修复显著增加了植被碳库和土壤碳库的碳储量,强烈干扰马尾松、竹节沟马尾松、种草竹节沟马尾松和竹节沟湿地松植被碳库分别为6.12,6.83,8.20和32.69t/hm2,其土壤碳库分别为裸露地的1.16,1.37,1.60和2.71倍,固碳总价值分别比裸露地增加了0.36,0.60,0.87和2.78倍。Carbon fixation benefit is an important part of the soil and water conservation benefits on degraded land and has a great significance in comprehensive evaluation of ecological rehabilitation. Taking bare land as a contrast, different types of human induced vegetation are studied. According to the studies on carbon pool and carbon fixation value of them, there was an obvious increase in vegetation carbon pool and soil pool after human induced rehabilitation. Vegetation carbon pools in strong interfered Pinus rnassoniana, bamboo- burl-groove Pinus massoniana, glassed-bamboo-burl-groove Pinus massoniana, and bamboo-burl-groove Pinuselliotti were 6.12, 6.83, 8.20, and 32.69 t/hm2 ; soil carbon pools of them were 1.16, 1.37, 1.60, and 2.71 times those on bare land; and the total values of carbon fixation were 0.36, 0.60, 0.87, and 2.78 times those on bare land, respectively.

关 键 词：退化红壤 人工促进修复 固碳效益 

分 类 号：S727.22[农业科学—林木遗传育种]