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本文在河北省土壤与地形体数据库基础上,计算了该省不同土壤组合的土壤有机碳和氮的密度,应用GIS技术分析了河北省土壤有机碳和氮密度的空间分布特征。结果表明:河北省土壤的平均有机碳密度为10.83kgm-3,平均氮密度为1070.96gm-3,C/N比为9.99;该省的土壤有机碳和氮密度的空间分布均呈现:不同类型土壤组合的有机碳和氮密度均随着纬度的增加而逐渐增加,而且其分布受气候、土壤特性、土地利用方式、植被特性以及人类干扰程度等的影响。
Based on the database of soils and topographies in Hebei Province, the density of soil organic carbon and nitrogen in different soil assemblages in the province was calculated. The spatial distribution characteristics of soil organic carbon and nitrogen in Hebei Province were analyzed using GIS technology. The results showed that the average soil organic carbon density in Hebei Province was 10.83kgm-3, the average nitrogen density was 1070.96gm-3, and the C / N ratio was 9.99. The spatial distribution of soil organic carbon and nitrogen in the province showed different types Soil organic carbon and nitrogen density increased with the increase of latitude, and its distribution was affected by climate, soil characteristics, land use patterns, vegetation characteristics and the extent of human disturbance.