.png){kind=icon}
返回
Quantifying the pedodiversity-elevation relations
.png){kind=icon}
PRE
AI
DOI：10.1016/j.geoderma.2020.114441.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
This paper discusses the study of pedodiversity quantification as related to elevation. It attempts to answer what is the magnitude of pedodiversity change with increasing or decreasing elevation. The proposed methods include segmentation of the study area (country of Czechia) so that segments of either equal elevation increments, or equal area extent are delineated. Based on soil taxa, commonly used pedodiversity indices in terms of diversity index (Shannon's entropy) are calculated for each segment. Furthermore, a concept of potential pedodiversity (PPD) have been proposed (it can be defined as a pressure of the surroundings on the soil unit change at a particular soil point location), with the aim to enable a pixel-to-pixel analysis. The size of the pixel surroundings was optimized for the most contrasted PPD pattern. It has been found that the pedodiversity tends to decrease with increasing elevation, and that such relationship can be described with a polynomial model (5-order) more likely than with a linear one. For the majority of the area, however, the linear fit may be a good approximation. To further visualize the effect of elevation on the PPD, experimental sample variogram and residual (variogram of residuals of the fitted model) variograms were examined. In addition to the difference in variogram sills, which can be attributed to the portion of variance explained by the fitted model, the elevation also had a significant impact on the reduction of periodicity in the spatial structure of pedodiversity. In this respect, the polynomial model confirmed its superiority over the linear one again.
Keyword:
Soil diversity
Soil mapping
Digital terrain model
World Reference Base
Soil classification
Reference Soil Group
Shannon's entropy
Variography
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
6.6
论文数:
9.4K
被引数:
5.9W
机构
引用论文
Methods to quantify the pedodiversity of 1 km2 areas - results from southern African drylands.png)
GEODERMA
GEODERMAIF6.6
PREAI
分享收藏分享收藏Influence of a ferromagnetic exchange interaction on the Kondo effect in Anderson impurity systems
PREAI
分享收藏The complete genome sequence of the Gram-positive bacterium Bacillus subtilis革兰氏阳性细菌枯草芽孢杆菌的全基因组序列Nature
OAAI
NatureIF48.5
OAAI分享收藏Long‐term survivorship of single‐needle pinyon (Pinus monophylla) in mixed‐conifer ecosystems of the Great Basin, USAEcosphere
EcosphereIF0
PREAI
分享收藏
查看更多内容