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Forests
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Forest Biometrics
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Forest Biometrics

A special issue of Forests (ISSN 1999-4907). This special issue belongs to the section "Forest Inventory, Modeling and Remote Sensing".

Deadline for manuscript submissions: closed (18 July 2023) | Viewed by 5700

Special Issue Editor

Dr. Yuhui Weng

E-Mail Website1 Website2
Guest Editor
Arthur Temple College of Forestry and Agriculture, Stephen F. Austin State University, Nacogdoches, TX, USA
Interests: growth and yield modeling; forest quantitative management; adaptive variation; experimental design; forest quantitative genetics

Special Issue Information

Dear Colleagues,

Forest biometrics comprises measurements of trees, individually and collectively, and the use of statistical methods to assess forest resources. Tree mensuration methods, forestry inventory, and modelling tree and stand attributes under various environmental and/or silvicultural conditions are all examples of forest biometrics. Notwithstanding the enormous efforts of academic researchers and industry, the recent rapid advances in silviculture, statistical theory, and electronic and computing technologies, paired with changes in the environment and climate, have had a profound impact on how forest resources are assessed.  This Special Issue is aimed at providing selected contributions on recent advances covering wide aspects of the science of forest biometrics.

Potential topics include, but are not limited to:

  • modeling tree/stand attributes (i.e., survival, growth, disease/insect, wood quality, carbon and others);
  • modeling effects of environmental variables and silvicultural activities on tree/stand development;
  • developing tools for tree mensuration;
  • advancing inventory designs;
  • applying remotely sensed data to forest biometrics;
  • applying new statistical approaches, i.e., machine-learning technologies and mixed model theory, to model development.

Dr. Yuhui Weng
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Forests is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • growth and yield modeling
  • tree mensuration
  • inventory design
  • remote sense
  • machine-learning approaches

Published Papers (3 papers)

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Research

14 pages, 5681 KiB  
Article
Method and Device for Measuring the Diameter at Breast Height and Location of Trees in Sample Plots
by Shangyang Li, Xiaorong Chen, Yuanjing Sun, Chaihui Lv, Fangxing Yuan and Luming Fang
Forests 2023, 14(9), 1723; https://doi.org/10.3390/f14091723 - 26 Aug 2023
Viewed by 1168
Abstract
The diameter at breast height (DBH) and location of trees are important factors when surveying forest resources and ecological functions. In this study, a device mainly comprising a self-made DBH-measuring instrument and positioning base station was used. The hardware consisted of two devices [...] Read more.
The diameter at breast height (DBH) and location of trees are important factors when surveying forest resources and ecological functions. In this study, a device mainly comprising a self-made DBH-measuring instrument and positioning base station was used. The hardware consisted of two devices to simultaneously measure the DBH and location of trees within a sample plot. Specifically, DBH is acquired by processing angle data with an algorithm, and locations are obtained by a five-sided ranging and positioning algorithm based on the received signal strength indicator and ultra-wideband (UWB) sensor. Data uploading, storage and analysis are performed by an upper computer. The device was used for the actual measurement of eight 24 m × 24 m square plots. The measurements of this device are essentially consistent with those of the DBH tape and calliper, with biases of −0.03 cm and −0.29 cm, respectively. Compared with a compass for location measurement, the device had a mean range bias of 25.41 cm, overall bias along the X-axis of 2.40 cm and overall bias along the Y-axis of 1.99 cm. Therefore, the device is considered to be sufficiently portable and practical and can reduce the heavy workload for surveyors to meet the requirements of accurate and smart measurements in forest resource surveys. Full article
(This article belongs to the Special Issue Forest Biometrics)
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12 pages, 3690 KiB  
Article
Development of Measuring Device for Diameter at Breast Height of Trees
by Shangyang Li, Luming Fang, Yuanjing Sun, Lei Xia and Xiongwei Lou
Forests 2023, 14(2), 192; https://doi.org/10.3390/f14020192 - 18 Jan 2023
Cited by 5 | Viewed by 2215
Abstract
Diameter at breast height (DBH) is the main metric for standing tree growth measurements. Developing fast and efficient measurement devices for measuring DBH is of great values in forest resource surveys. In this paper, we propose a new tree diameter measurement instrument developed [...] Read more.
Diameter at breast height (DBH) is the main metric for standing tree growth measurements. Developing fast and efficient measurement devices for measuring DBH is of great values in forest resource surveys. In this paper, we propose a new tree diameter measurement instrument developed using self-reset displacement sensor, which is equipped with a Personal Computer (PC) terminal to enable the measurement, transmission, storage, and analysis of tree diameters in one. The measurements showed an overall bias of 1.44% and an accuracy of 97.35% compared to the caliper, a conventional diameter measuring instrument. The overall bias was −0.52% compared to the diameter tape, and the measurement accuracy was 98.43%. Compared to the conventional devices, the proposed device is small and easy to carry, the measurement efficiency is significantly improved, and the measurement data can be directly derived for analysis. Compared with related electronic measuring instruments, this proposed device has the advantages of small volume, easy operation, large measurement range, and wider applicability. Full article
(This article belongs to the Special Issue Forest Biometrics)
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19 pages, 2855 KiB  
Article
Novel Yield Model of Pinus patula Schltdl. & Cham. Growth near the Ecological Limit in Northwestern Peruvian Andes
by Daigard Ricardo Ortega-Rodriguez, Andrea Hevia, Raúl Sánchez-Salguero, Santiago Bermudez Dobbertin, Jedi Rosero-Alvarado, Manuel Chavesta and Mario Tomazello-Filho
Forests 2022, 13(12), 2109; https://doi.org/10.3390/f13122109 - 09 Dec 2022
Cited by 1 | Viewed by 1138
Abstract
Forest plantations with exotic species in the northwestern Peruvian Andes have brought different ecosystem benefits. The wood productivity in this Páramo region is directly related to the great availability of water from abundant rainfall compared to other regions of the semi-arid Andes. To [...] Read more.
Forest plantations with exotic species in the northwestern Peruvian Andes have brought different ecosystem benefits. The wood productivity in this Páramo region is directly related to the great availability of water from abundant rainfall compared to other regions of the semi-arid Andes. To address the lack of information on forest inventories of plantations in the Páramo region, this study used annual growth rings (dendrochronology) to build new models of tree growth and wood productivity and compared 22-year-old Pinus patula plots with thinning and unthinning treatments. Our results show that late thinning, removing 63% of stem density in the 15th year, does not have significant effects on the diameter increase or stand-level productivity. For these plantations, we propose a management rotation of 21 years with a first thinning treatment (35%) at 5 years and a second thinning treatment (50%) at 12 years. Production at 21 years is expected to be between 194.6 m3 ha−1 and 504.6 m3 ha−1 for stands with low and high wood productivity, respectively. Tree-ring studies are potentially useful for monitoring forest plantations and provide an alternative method for forest managers who use allometric equations to predict silvicultural treatments and to propose management guides for plantations. Full article
(This article belongs to the Special Issue Forest Biometrics)
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