iForest - Biogeosciences and Forestry


Experimenting the design-based k-NN approach for mapping and estimation under forest management planning

W Mattioli (1)   , V Quatrini (1), S Di Paolo (1), D Di Santo (2), D Giuliarelli (1), A Angelini (1), L Portoghesi (1), P Corona (1)

iForest - Biogeosciences and Forestry, Volume 5, Issue 1, Pages 26-30 (2012)
doi: https://doi.org/10.3832/ifor0604-009
Published: Feb 27, 2012 - Copyright © 2012 SISEF

Research Articles

Estimation and mapping of forest attributes are a fundamental support for forest management planning. This study describes a practical experimentation concerning the use of design-based k-Nearest Neighbors (k-NN) approach to estimate and map selected attributes in the framework of inventories at forest management level. The study area was the Chiarino forest within the Gran Sasso and Monti della Laga National Park (central Italy). Aboveground biomass and current annual increment of tree volume were selected as the attributes of interest for the test. Field data were acquired within 28 sample plots selected by stratified random sampling. Satellite data were acquired by a Landsat 5 TM multispectral image. Attributes from field surveys and Landsat image processing were coupled by k-NN to predict the attributes of interest for each pixel of the Landsat image. Achieved results demonstrate the effectiveness of the k-NN approach for statistical estimation, that is compatible with the produced forest attribute raster maps and also proves to be characterized, in the considered study case, by a precision double than that obtained by conventional inventory based on field sample plots only.


Forest management planning, k-Nearest Neighbors, Landsat, Estimation, Mapping

Authors’ address

W Mattioli
V Quatrini
S Di Paolo
D Giuliarelli
A Angelini
L Portoghesi
P Corona
Department for Innovation in Biological, Agro-food and Forest systems (DIBAF), University of Tuscia, v. San Camillo de Lellis snc, I-01100 Viterbo (Italy)
D Di Santo
Gran Sasso and Monti della Laga National Park, Assergi, AQ (Italy)

Corresponding author


Mattioli W, Quatrini V, Di Paolo S, Di Santo D, Giuliarelli D, Angelini A, Portoghesi L, Corona P (2012). Experimenting the design-based k-NN approach for mapping and estimation under forest management planning. iForest 5: 26-30. - doi: 10.3832/ifor0604-009

Academic Editor

Agostino Ferrara

Paper history

Received: Oct 14, 2011
Accepted: Jan 19, 2012

First online: Feb 27, 2012
Publication Date: Feb 27, 2012
Publication Time: 1.30 months

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