农业科技与装备
農業科技與裝備
농업과기여장비
AGRICULTURAL SCIENCE & TECHNOLOGY AND EQUIPMENT
2014年
2期
19-21
,共3页
有机碳密度%地统计学%空间变异%GIS%空间相关性
有機碳密度%地統計學%空間變異%GIS%空間相關性
유궤탄밀도%지통계학%공간변이%GIS%공간상관성
organic carbon density%geostatistics%spatial variability%GIS%spatial correlation
采用GIS和地统计学相结合的方法，分析昌图县表层土壤（0~20 cm）样品中的有机碳密度，探讨有机碳密度的空间变异特性。结果表明，表层土壤有机碳密度在0.55~3.41 g/kg之间，平均值为1.97 g/kg，具有强变异性；有机碳密度的理论变异函数符合线形模型，具有较强的空间相关性。
採用GIS和地統計學相結閤的方法，分析昌圖縣錶層土壤（0~20 cm）樣品中的有機碳密度，探討有機碳密度的空間變異特性。結果錶明，錶層土壤有機碳密度在0.55~3.41 g/kg之間，平均值為1.97 g/kg，具有彊變異性；有機碳密度的理論變異函數符閤線形模型，具有較彊的空間相關性。
채용GIS화지통계학상결합적방법，분석창도현표층토양（0~20 cm）양품중적유궤탄밀도，탐토유궤탄밀도적공간변이특성。결과표명，표층토양유궤탄밀도재0.55~3.41 g/kg지간，평균치위1.97 g/kg，구유강변이성；유궤탄밀도적이론변이함수부합선형모형，구유교강적공간상관성。
This paper made analysis for Changtu laboratory data of 70 sample 0~20 cm surface soil samples. Spatial analysis was conducted by GIS and geostatistics in Changtu. Results showed that surface soil organic carbon density varied between 0.55 g/kg and 3.41 g/kg, the mean content was 1.97g/kg, with strong variability, and the semivariograms for surface soil organic carbon density was well fitted by spherical model, with a weaker spatial correlation.
