摘要
生物地球化学模型是模拟研究化学元素动态的新兴领域,可用于陆地生态系统内植物、有机物和无机营养元素动态变化和循环。DNDC模型(DeNitrification-DeComposition Model)是美国新罕布什尔州大学陆地海洋空间研究中心开发研制的,最初是为了模拟农田生态系统固碳、氮流失和水平衡而创建,目前该模型可以模拟草地、湿地、林地等陆地生态系统碳氮动态过程。DNDC模型已经在美洲、欧洲、澳洲以及亚洲的一些地区得到了验证和运用。DNDC模型可用来分析陆地植物生长规律、土壤硝化和反硝化作用、温室气体和痕量气体排放预测研究、不同土壤类型及气候条件对森林生态系统碳氮通量变化的影响以及气候变化对生物地球化学循环的影响预测等。
Biogeochemical model is an effective tool for providing decision on terrestrial resource management.DNDC model was established on the framework of interdisciplinary studies by the Institute for the Study of Earth,Oceans,and Space,University of New Hampshire,USA.Though primarily simulattinge C consequence,N leaching and water balance in the agricultural ecosystem,now DNDC are used to simulate carbon and nitrogen flux for grassland,wetland and forestland.Current literatures revealed that DNDC have been applied in wide zone,including America,Europe,Australia and Asia.DNDC model is a useful tool for analyzing vegetation growth,effect of different soil types and climate condition on carbon water and nitrogen flux of forest ecosystem.In addition,it can be used as a predictor for estimating potential production of forest ecosystem in changing environment and improving land use efficiency.
出处
《土壤通报》
CAS
CSCD
北大核心
2007年第6期1208-1212,共5页
Chinese Journal of Soil Science
基金
国家林业局林木培育重点实验室基金(2005-01)
中美碳联盟(USCCC)
国家科技支撑计划(2006BAD03A16)资助项目
