生态学杂志2012，Vol.31Issue(6)：1562-1570,9.
面向大尺度生态系统氮通量计算的域本体构建
Construction of domain ontology for large-scale ecosystem nitrogen flux calculation
摘要
Abstract
At present, large-scale ecosystem nitrogen flux calculation mainly depends on quasi-empirical models which quantify the nitrogen fluxes by using empirical formulas based on various kinds of collected parameters. However, quasi-empirical models have several limitations in application , including ( 1) completeness of calculation cannot be ensured due to the lack of variables, (2) uncertainty analysis is difficult, and (3 ) data sharing is lack of standardization. Ontology is a semantic model for describing concepts and their relations, which can unify and enrich the description of data to improve data sharing. In addition, the reasoning mechanism and hierarchy of ontology can provide automatic reasoning for quasi-empirical models to find out unavailable variables and conduct uncertainty analysis. In this paper, the domain ontology for the quasi-empirical models of nitrogen flux calculation ( NFCO) was constructed, and a framework of automatic reasoning and uncertainty analysis based on NFCO was proposed, which would improve the quality of large-scale ecosystem nitrogen flux calculation, and build a solid foundation for establishing large-scale ecosystem nitrogen cycle database.关键词
半经验模型/生物地球化学循环/人与自然耦合系统/数据共享/数据挖掘Key words
quasi-empirical model/ biogeochemical cycle/ coupled human and natural system/ data sharing/ data mining.分类
天文与地球科学引用本文复制引用
韩佳佳,闵勇,葛韩亮,金小刚,高波,谷保静,葛滢,常杰..面向大尺度生态系统氮通量计算的域本体构建[J].生态学杂志,2012,31(6):1562-1570,9.基金项目
国家自然科学基金项目(30970128,31170305)资助. （30970128,31170305）
