气候变化领域集成服务门户(CCPortal): Assessing structural changes at the forest edge using kernel density estimation

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DOI	10.1016/j.foreco.2019.117639
	Assessing structural changes at the forest edge using kernel density estimation
	Wang Z.; Ginzler C.; Waser L.T.
发表日期	2020
ISSN	0378-1127
卷号	456
英文摘要	Due to the strong impact of the composition and structure of the forest edge on forest ecosystems, the value of investigating changes at the forest edge has been recognized for a few decades. Automatic quantification and detection of forest edge changes has advantages over fieldwork with respect to the time and cost required. Based on the structural features extracted from Airborne Laser Scanning (ALS) data, in this study an automatic method using Kernel Density Estimation (KDE) was developed to describe ALS point data related to the forest edge in terms of a finite number of interpretable indicators. The method was applied to identify patterns in data sets at the forest edge between two given dates (2001 and 2014) in European temperate mixed forests. The study area has an extent of 1403 km2 and the total length of forest boundary is approx. 5000 km. The calculated structural features explained the vegetation's height distribution and the structural variance at the forest edge. The kernel density curves represented the general structural diversity of the study area. Three extracted indicators described the shape of the kernel density curves and reflected the dynamics of the studied forest edge area. Overall, results from this study show that the proposed approach is a promising tool for using remote sensing data to analyze whether or not the vertical structure of the forest edge for the entire study area has changed and thus to assess automatically the progress of forest management at forest edge. © 2019 Elsevier B.V.
关键词	Ecosystems Information management Laser applications Remote sensing Statistics Airborne Laser scanning Automatic quantification Forest edge Height distribution Kernel Density Estimation Remote sensing data Structural diversity Vertical structures Forestry assessment method estimation method forest ecosystem forest edge forest management laser method mixed farming mixed forest temperate forest Area Data Density Ecosystems Edges Forestry Remote Sensing Statistics Eastern Europe
语种	英语
来源机构	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133143
推荐引用方式 GB/T 7714	Wang Z.,Ginzler C.,Waser L.T.. Assessing structural changes at the forest edge using kernel density estimation[J]. Forest Ecology and Management,2020,456.
APA	Wang Z.,Ginzler C.,&Waser L.T..(2020).Assessing structural changes at the forest edge using kernel density estimation.,456.
MLA	Wang Z.,et al."Assessing structural changes at the forest edge using kernel density estimation".456(2020).