| 金堂县乡村景观N、P养分元素空间分布特征研究 |
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| 引用本文： | 贺波,李首成.金堂县乡村景观N、P养分元素空间分布特征研究[J].四川农业大学学报,2006,24(1):83-87. |
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| 作者姓名： | 贺波 李首成 |
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| 作者单位： | 四川农业大学,农学院,四川,雅安,625014 |
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| 摘 要： | 利用地统计学,结合GIS研究金堂县的沙河村和金桥村0～20cm土壤的全氮、碱解氮、全磷和速效磷4种养分含量的空间分布特征。用普通克立格法进行最优内插,做出各种养分含量的分布图。结合GIS可充分了解土壤中N、P养分的空间变异性规律,将土壤分为4级进行变量施肥指导。以此为该县找出一条符合自身实际的精确施肥之路。
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| 关 键 词： | 金堂县 空间变异 GIS 精确施肥 |
| 文章编号： | 1000-2650（2006）01-0083-05 |
| 收稿时间： | 2005-08-16 |
| 修稿时间： | 2005年8月16日 |
Investigation of the Spatial Variability of Nitrogen and Phosphorus of Village Landscape in Jintang County |
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| HE Bo,LI Shou-cheng.Investigation of the Spatial Variability of Nitrogen and Phosphorus of Village Landscape in Jintang County[J].Journal of Sichuan Agricultural University,2006,24(1):83-87. |
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| Authors: | HE Bo LI Shou-cheng |
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| Institution: | College of Agriculture, Sichuan Agricultural University, Yaan 625014, Sichuan, China |
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| Abstract: | In this paper, the spatial distribution pattern of the total nitrogen, available nitrogen, available phosphorus and total phosphorus in surface purple soil (0～20cm) of the research region which is in Shahe village and Jinqiao village in Jintang county of Sichuan basin hilly region, are analyzed by applying geostatistics combined with GIS. Preliminary analysis is made for the spatial variability of the soil nutrients by using the group map of the soil nutrients with ordinary kriging. These results are useful for further application in precision fertilization. |
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| Keywords: | Jintang county spatial variability GIS variable rate fertilization |
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