摘要
黄河三角洲可持续发展信息系统数据库的支持下，以黄河三角洲为实验区，考虑影响土地生产力水平的多种因素，确定合理的数学模型，进行土地景观单元的土地生产潜力定量化评价计算。同时，分析了黄河三角洲土地生产潜力的数值分布和空间分布特征以及分级统计和制图，并提出了提高黄河三角洲土地生产潜力的相应建议。
On the basis of a previous research on potential agricultural productivity,the land potentialproductivities in the Yellow River Delta(YRD)were studied with geographic information system(GIS)andYRDGIS databases which include spatial databases and attribute databases.At first,multiple factors influencingland fertility are expounded,then using the mechanism methodology and computing models the land potentialproductivities are computed,including:photosynthetic productivity,photosynthetic thermal productivity,climaticproductivity and agricultural productivity.The characteristics of numeric value disperse and spatial distribution ofland potential productivity in the Yellow River Delta are analyzed through classification statistics andclassification mapping.Finally,based on the result,it puts forward respective proposals to develop the landpotential productivities in the Yellow River Delta.
出处
《地球信息科学》
CSCD
2004年第3期79-83,F002,共6页
Geo-information Science
关键词
土地生产潜力
地理信息系统
土地景观单元
黄河三角洲
land potential productivity
geographic information system
landscape unit
Yellow River Delta
