QUALITY CONTROL IN SOIL SURVEY

QUALITY CONTROL IN SOIL SURVEY
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土壤调查中的质量控制

DOI:
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发表时间:
1971
期刊:
影响因子:
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通讯作者:
P. Beckett
P. Beckett
中科院分区:
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文献类型:
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作者:
S. Bie;P. Beckett

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总结 本文探讨了66个澳大利亚土壤调查在各种地形(但不是封闭的森林),几个调查程序,并在一系列的地图比例尺出版。它将专业人员的调查工作量(E)(单位:每平方公里人日)与(I)调查程序、(2)制图单位的类型和(3)制图土壤模式的复杂性联系起来。复杂度(I),1 km随机线性导线穿过的映射土壤边界的平均数量,与映射边界的总长度(km/km 2)有关。 当根据测量程序和绘图单元对测量进行分组时,每个组的测量工作量可以通过以下形式的回归来描述: . B在组间无显著差异。D的变化比例为0.5:I,取决于调查是否使用航空照片判读,D的变化比例为0.3:0.7:1.o,取决于调查是否绘制了陆地系统、其他复合制图单元或简单制图单元。 由于调查程序和绘图单元的选择通常取决于土壤格局的复杂性,因此这些因素的影响可以总结为所有66项调查的单一回归: I与地图比例尺之间存在显著(P≤ 0.001)的对数-对数回归。
Summary The paper examines 66 Australian soil surveys in a variety of terrains (but not close forest), by several survey procedures, and published at a range of map scales. It relates the Survey Effort (E) of professional staff (in man-days per km2) to (I) survey procedure, (2) the kind of mapping unit, and (3) the intricacy of the soil pattern mapped. Intricacy (I), the average number of mapped soil boundaries crossed by 1 km of random linear traverse, is related to the total length of mapped boundary (km per km2). When the surveys are grouped according to survey procedure and mapping unit, the survey effort for each group may be described by a regression of the form . B could not be shown to differ significantly between groups. D varied in the ratio 0.5: I, according to whether or not surveys used air photograph interpretation, and in the ratio 0.3:0.7:1.o, according to whether they mapped land systems, other compound mapping units, or simple mapping units. Since the choice of survey procedure and mapping unit is usually governed by the intricacy of the soil pattern the effect of these factors can be summarized in a single regression for all 66 surveys: There is a significant (P≤ 0.001) log-log regression between I and map scale.