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首页> 外文期刊>资源与生态学报（英文版） >橡胶园土壤养分精准管理合理取样数目的确定
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橡胶园土壤养分精准管理合理取样数目的确定

机译：橡胶园土壤养分精准管理合理取样数目的确定

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摘要

实施合理的养分综合管理是提高橡胶树生产力的重要手段.养分精准管理的前提是详细了解橡胶园土壤属性空间分布特征.本文应用地统计学方法对海南典型丘陵区橡胶园土壤的全氮、有机质、速效磷和速效钾进行空间变异分析,结果表明在该尺度上橡胶园土壤养分属性均属于中等变异程度,但速效磷和速效钾的变异程度明显大于全氮和有机质.从土壤养分属性的空间分布特征来看,除了速效钾外,高程和修筑等高梯田明显影响橡胶园土壤性质的空间异质性.为了获得更好的取样精度,应沿着高程落差和垂直等高梯田方向上布置较多取样样点.应用克里格方法指导土壤属性的取样效率比传统统计学方法提高约2～5倍.%Site-specific nutrient management is an important strategy to promote sustainable production of rubber trees in order to obtain high yields of natural rubber. Making effective nutrient management decisions for rubber trees depend on knowing the spatial variations of soil fertility properties in advance. In this study the Kriging geostatistical method was used to examine the spatial variability of soil total nitrogen (TN), organic matter (OM), available phosphorus (AP) and available potassium (AK) in a typical hilly rubber tree plantation in Hainan, China. The spatial variability of the soils was small for the TN and OM and had medium variability for the AP and AK variables. Anisotropic semivariograms of all soil properties revealed that elevation and building contour ledge can profoundly affect the spatial variability of soil properties in the plantation, except for the AK variable. Soil samples had to be collected in alignment with the direction of elevation and perpendicular to the direction of building contour ledges, which was needed to obtain more reliable information within the study area in the rubber tree plantation. In formulating a sample scheme for AK, the distribution features of the soil's parent material should be considered as the influence factor in the study field. The Kriging method used to guide the soil sampling for spatial variability dertermination of soil properties was about 2-5 times more efficient than the classic statistical method.
机译：实施合理的养分综合管理是提高橡胶树生产力的重要手段.养分精准管理的前提是详细了解橡胶园土壤属性空间分布特征.本文应用地统计学方法对海南典型丘陵区橡胶园土壤的全氮、有机质、速效磷和速效钾进行空间变异分析,结果表明在该尺度上橡胶园土壤养分属性均属于中等变异程度,但速效磷和速效钾的变异程度明显大于全氮和有机质.从土壤养分属性的空间分布特征来看,除了速效钾外,高程和修筑等高梯田明显影响橡胶园土壤性质的空间异质性.为了获得更好的取样精度,应沿着高程落差和垂直等高梯田方向上布置较多取样样点.应用克里格方法指导土壤属性的取样效率比传统统计学方法提高约2～5倍.%Site-specific nutrient management is an important strategy to promote sustainable production of rubber trees in order to obtain high yields of natural rubber. Making effective nutrient management decisions for rubber trees depend on knowing the spatial variations of soil fertility properties in advance. In this study the Kriging geostatistical method was used to examine the spatial variability of soil total nitrogen (TN), organic matter (OM), available phosphorus (AP) and available potassium (AK) in a typical hilly rubber tree plantation in Hainan, China. The spatial variability of the soils was small for the TN and OM and had medium variability for the AP and AK variables. Anisotropic semivariograms of all soil properties revealed that elevation and building contour ledge can profoundly affect the spatial variability of soil properties in the plantation, except for the AK variable. Soil samples had to be collected in alignment with the direction of elevation and perpendicular to the direction of building contour ledges, which was needed to obtain more reliable information within the study area in the rubber tree plantation. In formulating a sample scheme for AK, the distribution features of the soil's parent material should be considered as the influence factor in the study field. The Kriging method used to guide the soil sampling for spatial variability dertermination of soil properties was about 2-5 times more efficient than the classic statistical method.

著录项

  • 来源
    《资源与生态学报（英文版）》 |2019年第4期|441-450|共10页
  • 作者

    林清火; 李虹; 李保国; 罗微; 林钊沐; 茶正早; 郭澎涛;

  • 作者单位

    中国热带农业科学院橡胶研究所,海口 571101;

    中国农业大学资源与环境学院土壤与水科学系,北京 100193;

    中国烟草总公司海南省公司海口雪茄研究所,海口 571100;

    中国热带农业科学院环境与植物保护研究所,海口 571101;

    中国农业大学资源与环境学院土壤与水科学系,北京 100193;

    中国热带农业科学院橡胶研究所,海口 571101;

    中国热带农业科学院橡胶研究所,海口 571101;

    中国热带农业科学院橡胶研究所,海口 571101;

    中国热带农业科学院橡胶研究所,海口 571101;

  • 收录信息 中国科学引文数据库(CSCD);
  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类
  • 关键词

    巴西橡胶树; 土壤取样数目; 土壤空间变异; 各向异性; 养分精准管理;

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