Sampling scheme optimization to map soil depth to petrocalcic horizon at field scale

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• 作者：Marisa Beatriz Domenech^a ; ^{domenech.marisa@inta.gob.ar} ; Mauricio Castro-Franco^b ; José ; Luis Costa^c ; Nilda Mabel Amiotti^d
• 关键词：Conditioned Latin hypercube ; Digital soil mapping ; Precision agriculture ; Argentina ; Ordinary cokriging
• 刊名：Geoderma
• 出版年：2017
• 出版时间：15 March 2017
• 年：2017
• 卷：290
• 期：Complete
• 页码：75-82
• 全文大小：1054 K
• 卷排序：290

文摘

Soil depth to petrocalcic horizon is a key limiting factor for crop yields. Conditioned Latin hypercube and ordinary cokriging increase the effectiveness of soil depth sampling at field scale. Only 30% of samples collected on a 30 m grid are required to provide high prediction accuracy (R2 > 0.95) to map soil depth.