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首页> 外文期刊>GIScience & remote sensing >DBH and height show significant correlation with incoming solar radiation: a case study of a radiata pine (Pinus radiata D. Don) plantation in New South Wales, Australia
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DBH and height show significant correlation with incoming solar radiation: a case study of a radiata pine (Pinus radiata D. Don) plantation in New South Wales, Australia

机译：DBH和高度与入射的太阳辐射显着相关：以澳大利亚新南威尔士州的辐射松（Pinus radiata D. Don）人工林为例

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摘要

The aim of this study was to determine whether diameter at breast height (DBH, at 1.3 m) and total height of radiata pine (Pinus radiata D. Don) trees showed any significant relationships with microsite estimates of solar radiation. A total of 77 plots were established in two even-aged stands of radiata in Nundle State Forest, New South Wales, Australia. Within these plots, tree DBH and height measurements were recorded and their relationships with solar radiation evaluated. Airborne light detection and ranging (LiDAR) data were processed to generate a high resolution digital elevation model (DEM), and the DEM was used for calculating the incoming solar radiation. Overall, at both study sites, taller and larger trees were found on areas with lower solar radiation, possibly due to a lower loss in soil moisture. The findings of this study suggest that LiDAR-derived DEM estimates of solar radiation are significantly correlated with DBH and height variation, and therefore suitable for use as a sub-compartment stratification variable as well as for possible inclusion in fine-scale estimates of P. radiata growth and productivity.
机译：这项研究的目的是确定在乳房高度处的直径（DBH，在1.3 m处）和辐射松（Pinus radiata D. Don）树的总高度是否与太阳辐射的微地点估计值存在显着关系。在澳大利亚新南威尔士州的纳德州立森林的两个均匀年龄的辐射林中共建立了77个样地。在这些图中，记录了树木的DBH和高度测量值，并评估了它们与太阳辐射的关系。处理机载光检测和测距（LiDAR）数据以生成高分辨率数字高程模型（DEM），DEM用于计算入射的太阳辐射。总体而言，在这两个研究地点，太阳辐射较低的地区均发现了较高和较大的树木，这可能是由于土壤水分损失较少所致。这项研究的发现表明，LiDAR得出的太阳辐射的DEM估计值与DBH和高度变化显着相关，因此适合用作子隔间分层变量以及可能包含在P的精细估计中。辐射的增长和生产力。

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  • 来源
    《GIScience & remote sensing》 |2014年第4期|427-444|共18页
  • 作者

    Hanieh Saremi; Lalit Kumar; Russell Turner; Christine Stone; Gavin Melville;

  • 作者单位

    Ecosystem Management, School of Environmental and Rural Science, University of New England, Armidale, New South Wales, Australia;

    Ecosystem Management, School of Environmental and Rural Science, University of New England, Armidale, New South Wales, Australia;

    Remote Census Pty Ltd, Morisset, New South Wales, Australia;

    Forest Science, New South Wales Department of Primary Industries, North Parramatta, New South Wales, Australia;

    Trangie Agricultural Research Centre, New South Wales Department of Primary Industries, Trangie, New South Wales, Australia;

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  • 正文语种 eng
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  • 关键词

    LiDAR-derived DEM; winter radiation; summer radiation; multivariate mixed linear models;

    机译：LiDAR衍生的DEM;冬季辐射;夏季辐射;多元混合线性模型;

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