潮褐土土壤养分的空间分布特征 |
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出 版 社:土壤通报 |
发表时间:2004,Vol.35(2):97-101 |
台 站:
栾城农业生态系统试验站
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作 者:朱安宁,张佳宝,张玉铭 |
点 击 率:9951 |
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关 键 字:土壤养分, 空间变异, 主成分分析,地统计分析 |
摘 要:用主成分分析方法和地统计学方法,对河北省栾城县一15hm2试区里潮褐土全氮、全磷、有机质、速效磷、速效钾、碱解氮、NH+4-N和NO-3-N等土壤养分含量的空间变异规律进行了定量分析。为实现土壤养分的精准管理和变
量平衡施肥提供了科学依据。 |
关 键 字(英文):Soil nutrient, Spatialvaribility, Principle component analysis, Geostatistics analysis |
摘 要(英文):The characteristics of spatial variability was quantitatively analyzed for total N, total P, organic matter, available P, available K, hydrolyzed N, NH4-N and NO3-N of the aquic cinnamon soil sina 15ha of experimental field in Luancheng county in Hebei province by principle component analysis and geostatistical methods. The study provides an important basis for site-specific nutrient management and variable rate fertilization. |
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