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Forests, Volume 14, Issue 8

2023 August - 180 articles

Cover Story: This study presents a method of tree species classification using individual tree metrics derived from a three-dimensional point cloud via unmanned aerial vehicle laser scanning (ULS). In this novel approach, we evaluated the metrics of 1045 trees using a generalized linear model (GLM) and random forest (RF) techniques to automatically assign individual trees into either a coniferous or broadleaf group. We evaluated several statistical descriptors, including a novel approach using the Clark–Evans spatial aggregation index (CE), which indicates the level of clustering in point clouds. A comparison of classifiers that included and excluded the CE indicator values demonstrated their importance for improved classification of the individual tree point clouds. The overall accuracy when including the CE index was 94.8% using a GLM approach and 95.1% using an RF approach. View this paper
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Articles (180)

  • Article
  • Open Access
13 Citations
2,948 Views
15 Pages

Identification and Characterization of the AREB/ABF/ABI5 Gene Family in Sandalwood (Santalum album L.) and Its Potential Role in Drought Stress and ABA Treatment

  • Xiaojing Liu,
  • Renwu Cheng,
  • Yu Chen,
  • Shengkun Wang,
  • Fangcuo Qin,
  • Dongli Wang,
  • Yunshan Liu,
  • Lipan Hu and
  • Sen Meng

21 August 2023

AREB/ABF/ABI5 (ABA-responsive element-binding protein/ABRE binding factors and ABA INSENSITIVE 5) transcription factors are involved in regulating the expression of ABA (abscisic acid)-related genes and improving plant adaptability to environmental s...

  • Article
  • Open Access
2 Citations
1,485 Views
17 Pages

21 August 2023

The dependence of the width of annual rings of woody plants on the characteristics of the snow cover is analyzed in various natural zones of the West Siberian Plain and adjacent mountainous areas: the maximum depth and water reserve for the entire wi...

  • Article
  • Open Access
5 Citations
3,203 Views
27 Pages

Identification of Bird Habitat Restoration Priorities in a Central Area of a Megacity

  • Yuncai Wang,
  • Xinghao Lu,
  • Ruojing Wang,
  • Yifei Jia and
  • Junda Huang

21 August 2023

Rapid global urbanization has caused habitat degradation and fragmentation, resulting in biodiversity loss and the homogenization of urban species. Birds play a crucial role as biodiversity indicators in urban environments, providing multiple ecosyst...

  • Article
  • Open Access
14 Citations
2,693 Views
14 Pages

21 August 2023

Pine wilt disease (PWD), caused by Bursaphelenchus xylophilus, is one of the most severe forest diseases worldwide. PWD causes devastating disasters to Chinese pine trees, seriously threatening forestry production and the forest ecological environmen...

  • Article
  • Open Access
32 Citations
3,107 Views
15 Pages

Comparison of Machine Learning Methods for Estimating Leaf Area Index and Aboveground Biomass of Cinnamomum camphora Based on UAV Multispectral Remote Sensing Data

  • Qian Wang,
  • Xianghui Lu,
  • Haina Zhang,
  • Baocheng Yang,
  • Rongxin Gong,
  • Jie Zhang,
  • Zhinong Jin,
  • Rongxiu Xie,
  • Jinwen Xia and
  • Jianmin Zhao

21 August 2023

UAV multispectral technology is used to obtain leaf area index (LAI) and aboveground biomass (AGB) information on Cinnamomum camphora (C. camphora) and to diagnose the growth condition of Cinnamomum camphora dwarf forests in a timely and rapid manner...

  • Article
  • Open Access
9 Citations
2,437 Views
18 Pages

21 August 2023

NaCl stress adversely affects plant growth. Tamarix ramosissima Ledeb (T. ramosissima), a halophyte, thrives in saline-alkali areas. Myo-inositol, a lipid-soluble compound, is crucial for stress response, but its role in mitigating NaCl damage remain...

  • Article
  • Open Access
8 Citations
2,086 Views
12 Pages

Ecological Stoichiometry of N and P across a Chronosequence of Chinese Fir Plantation Forests

  • Juan Cao,
  • Wende Yan,
  • Taimoor Hassan Farooq,
  • Xiaoyong Chen,
  • Jun Wang,
  • Chenglin Yuan,
  • Yaqin Qi and
  • Khalid Ali Khan

21 August 2023

Ecological stoichiometry is crucial in understanding nutrient dynamics and its impact on plant growth and development at various ecological scales. Among the different nutrients, nitrogen (N) and phosphorus (P) have been widely recognized as key elem...

  • Article
  • Open Access
6 Citations
2,458 Views
15 Pages

Leaf Plasticity of the Subtropical Evergreen Tree Phoebe bournei Increases with Ontogeny in Response to Sun and Shade

  • Xin-Bei Li,
  • Cheng-Cheng Liu,
  • Jia-Xin Chen,
  • Meng-Meng Zhang,
  • Jun-Hong Zhang,
  • Zai-Kang Tong and
  • Qi Yang

20 August 2023

Variation in shade tolerance is a primary mechanism driving succession in subtropical forests. However, little attention has been given to ontogenetic variation in light tolerance of late succession tree species such as Phoebe bournei. To investigate...

  • Article
  • Open Access
2 Citations
1,950 Views
16 Pages

20 August 2023

Chinese chestnut is an economically and ecologically valuable tree species that is extensively cultivated in China. Leaf traits play a vital role in the photosynthetic capacity, chestnut yield, and quality, making them important breeding objectives....

  • Article
  • Open Access
2 Citations
1,916 Views
15 Pages

19 August 2023

Plant chloroplast (cp) gene clusters consist of genes arranged closely together on the cp genome. These genes are organized in operon structures and participate in cotranscription, typically exhibiting conservation. Broken gene clusters have been obs...

  • Article
  • Open Access
8 Citations
2,801 Views
22 Pages

19 August 2023

Scientific and reasonable planning of urban forests is crucial to mitigate the UHI effect and create a comfortable local climate. This study focused on maximizing the synergistic effect of landscape design parameters (i.e., Landscape Shape Index (LSI...

  • Article
  • Open Access
10 Citations
2,336 Views
12 Pages

19 August 2023

Cyclocarya paliurus is a versatile tree species with immense potential for development, as it combines edible, medicinal, and ornamental functions. Low temperature is one of the important abiotic factors that affect plant survival and flourishing but...

  • Article
  • Open Access
5 Citations
2,160 Views
17 Pages

18 August 2023

In the context of global warming, timely and accurate drought monitoring is of great importance to ensure regional ecological security and guide agricultural production. This study established the Drought Severity Index (DSI), based on the potential...

  • Article
  • Open Access
10 Citations
2,225 Views
15 Pages

18 August 2023

Microbes are crucial components of soil, and their residue carbon plays a significant role in the formation and stabilization of soil carbon pools. However, current research on microbial residue carbon has predominantly focused on surface soils, with...

  • Article
  • Open Access
2 Citations
1,718 Views
10 Pages

A Comparative Study of Methods Recording Beekeeping Flora

  • Vasilios Liolios,
  • Dimitrios Kanelis,
  • Maria-Anna Rodopoulou and
  • Chrysoula Tananaki

18 August 2023

The knowledge of beekeeping flora of an area and of each plant’s provision is crucial for beekeepers to plan their hive transfers when practicing nomadic beekeeping. Thus, in the present study, we evaluated the use of pollen traps as a means of...

  • Article
  • Open Access
16 Citations
3,542 Views
17 Pages

Leisure Involvement, Leisure Benefits, and Subjective Well-Being of Bicycle Riders in an Urban Forest Park: The Moderation of Age

  • Wenguang Geng,
  • Qian Wan,
  • Hongyu Wang,
  • Yushunan Dai,
  • Lisheng Weng,
  • Meng Zhao,
  • Ying Lei and
  • Yumin Duan

18 August 2023

The prominence of participating in outdoor leisure activities has gained significance in individuals’ lives as a result of the rapid growth of the economy and the rise in available leisure time. The present study employed structural equation mo...

  • Article
  • Open Access
6 Citations
2,099 Views
17 Pages

Microwave Treatments and Their Effects on Selected Properties of Portuguese Pinus pinaster Aiton. and Eucalyptus globulus Labill. Wood

  • Fernando Júnior Resende Mascarenhas,
  • Alfredo Manuel Pereira Geraldes Dias,
  • André Luis Christoforo,
  • Rogério Manuel dos Santos Simões and
  • André Eduardo Palos Cunha

18 August 2023

The most widespread wood species in the Portuguese forest and the most widely utilized are maritime pine (Pinus pinaster) and eucalyptus (Eucalyptus globulus Labill). In the case of eucalyptus, except for the pulping sector, it might have limited usa...

  • Article
  • Open Access
10 Citations
2,963 Views
25 Pages

18 August 2023

Thinning is a practice that reduces competition for available soil resources, thereby promoting vegetation growth and affecting soil, which is involved in important ecosystem processes. Soil quality is directly influenced by various aspects such as g...

  • Article
  • Open Access
22 Citations
5,319 Views
14 Pages

Tree Health Condition in Urban Green Areas Assessed through Crown Indicators and Vegetation Indices

  • Luis Manuel Morales-Gallegos,
  • Tomás Martínez-Trinidad,
  • Patricia Hernández-de la Rosa,
  • Armando Gómez-Guerrero,
  • Dionicio Alvarado-Rosales and
  • Luz de Lourdes Saavedra-Romero

18 August 2023

The urban environment induces stress on trees and its impact can be identified by observing the condition of the crown. The aim of this study is to correlate the variables of crown density (Cdn), crown transparency (Ctr) and dieback (Cdie) with the f...

  • Article
  • Open Access
21 Citations
2,764 Views
21 Pages

18 August 2023

Pine wilt disease (PWD) is one of the most concerning diseases in forestry and poses a considerable threat to forests. Since the deep learning approach can interpret the raw images acquired by UAVs, it provides an effective means for forest health de...

  • Article
  • Open Access
4 Citations
1,976 Views
18 Pages

18 August 2023

Forest ecological security is an important guarantee for national security and the healthy development of forestry. Existing research has been limited to the comprehensive evaluation and obstruction factors of forest ecological security, and this stu...

  • Article
  • Open Access
11 Citations
6,087 Views
17 Pages

Mapping Land Use and Land Cover Classes in São Paulo State, Southeast of Brazil, Using Landsat-8 OLI Multispectral Data and the Derived Spectral Indices and Fraction Images

  • Yosio E. Shimabukuro,
  • Egidio Arai,
  • Gabriel M. da Silva,
  • Tânia B. Hoffmann,
  • Valdete Duarte,
  • Paulo R. Martini,
  • Andeise Cerqueira Dutra,
  • Guilherme Mataveli,
  • Henrique L. G. Cassol and
  • Marcos Adami

18 August 2023

This work aims to develop a new method to map Land Use and Land Cover (LULC) classes in the São Paulo State, Brazil, using Landsat-8 Operational Land Imager (OLI) data. The novelty of the proposed method consists of selecting the images based...

  • Article
  • Open Access
3 Citations
2,878 Views
16 Pages

18 August 2023

Understanding the effects of nitrogen (N) deposition on plant functional traits can provide insights into their adaptation strategies. We conducted an N application experiment (0, 5, 10, 15 g N m−2) with potted saplings of the endangered specie...

  • Article
  • Open Access
1 Citations
2,604 Views
20 Pages

18 August 2023

Forestry carbon sinks are an important measure for enabling China to cope with global climate change and realize its “double carbon” goal. Carbon sink afforestation projects (CSAPs) are a type of forestry carbon sink projects, and the question of whe...

  • Article
  • Open Access
10 Citations
4,288 Views
22 Pages

Unveiling the Diversity of Bangka Island’s Mangroves: A Baseline for Effective Conservation and Restoration

  • Suci Puspita Sari,
  • Nico Koedam,
  • Aditya Pamungkas,
  • Muhammad Rizza Muftiadi and
  • Frieke Van Coillie

17 August 2023

The current state of the mangrove ecosystem on Bangka Island requires urgent attention from the local government to protect, restore, and conserve the remaining mangrove areas. Hence, this study endeavors to assess the species composition of mangrove...

  • Article
  • Open Access
9 Citations
3,723 Views
14 Pages

Distribution of Genes and Microbial Taxa Related to Soil Phosphorus Cycling across Soil Depths in Subtropical Forests

  • Hao Lv,
  • Jie Yang,
  • Siwen Su,
  • Yue Liu,
  • Jie Feng,
  • Yuxiang Sheng,
  • Ting Wang,
  • Jinwen Pan,
  • Li Tang and
  • Guangjun Wang
  • + 2 authors

17 August 2023

Although many studies have focused on the roles of soil microbes in phosphorus (P) cycling, little is known about the distribution of microbial P cycling genes across soil depths. In this study, metagenomic sequencing was adopted to examine the diffe...

  • Article
  • Open Access
9 Citations
4,452 Views
15 Pages

Effect of Temperature, Seed Size, Sowing Depth, and Position on Seed Germination and Seedling Growth of Bauhinia retusa Roxb. and Bauhinia variegata L.

  • Neeraj Yadav,
  • Vinod Prasad Khanduri,
  • Bhupendra Singh,
  • Chatar Singh Dhanai,
  • Manoj Kumar Riyal,
  • Deepa Rawat,
  • Taufiq Ahmad and
  • Munesh Kumar

17 August 2023

In urban forestry plantations are implemented in different cities of the world for social and environmental benefits. Bauhinia retusa and Bauhinia variegata are important species and to be used as large-scale plantation programs in urban forestry whi...

  • Article
  • Open Access
1 Citations
2,099 Views
20 Pages

Spectral Analysis, Biocompounds, and Physiological Assessment of Cork Oak Leaves: Unveiling the Interaction with Phytophthora cinnamomi and Beyond

  • Rui Guerra,
  • Rosa Pires,
  • António Brázio,
  • Ana Margarida Cavaco,
  • Gabriela Schütz and
  • Ana Cristina Coelho

17 August 2023

The cork oak tree (Quercus suber L.) symbolizes the Montado landscape in Portugal and is a central element in the country’s social and economic history. In recent decades, the loss of thousands of cork oaks has been reported, revealing the ongo...

  • Article
  • Open Access
1 Citations
2,275 Views
18 Pages

A Statistical Approach to Macrofungal Diversity in a Mediterranean Ecosystem of the Iberian Peninsula Dominated by the Holm Oak (Quercus ilex L. subsp. ballota (Desf.) Samp.)

  • Abel Fernández-Ruiz,
  • José Luis Vicente-Villardón,
  • José Sánchez-Sánchez,
  • Prudencio García-Jiménez,
  • Sergio Sánchez-Durán and
  • David Rodríguez-de la Cruz

17 August 2023

The fungal biodiversity associated with a stable plant community appears to vary from year to year. To analyse the annual behaviour in the formation of fruiting bodies, a statistical study of the data obtained for 4 years (2009–2012) in an appa...

  • Article
  • Open Access
2 Citations
2,328 Views
11 Pages

Performance of Harvesting Residue Treatment Methods in South African Pine Plantations

  • Henny M. Zitha,
  • Muedanyi M. Ramantswana and
  • Raffaele Spinelli

17 August 2023

Forest harvesting generates variable amounts of residue that pose a fire hazard and a hindrance to regeneration and must be managed accordingly. In South Africa, burning is the most common residue management method, but there is interest in introduci...

  • Article
  • Open Access
3 Citations
3,082 Views
16 Pages

17 August 2023

Commercial plantations of Eucalyptus species have been established in Malaysia, especially during the past 10 years, with the aim of sustaining the supply of wood and timber products for industrial use in Malaysia. As part of an assessment of fungal...

  • Article
  • Open Access
14 Citations
2,447 Views
15 Pages

16 August 2023

Castanopsis hystrix is a major community-building species in the top communities of southern subtropical China, with a high natural regeneration capacity. However, excessive logging and the introduction of exotic tree species have substantially reduc...

  • Article
  • Open Access
2 Citations
2,830 Views
16 Pages

Development of an Advanced-Generation Multi-Objective Breeding Population for the 4th Cycle of Chinese Fir (Cunninghamia lanceolata (Lamb.) Hook.)

  • Benwen Zhao,
  • Liming Bian,
  • Qihang Feng,
  • Jinzhang Wu,
  • Xuefeng Zhang,
  • Renhua Zheng,
  • Xueyan Zheng,
  • Zhiyuan Yang,
  • Zhiqiang Chen and
  • Jisen Shi
  • + 1 author

16 August 2023

Chinese fir (Cunninghamia lanceolata (Lamb.) Hook.) is an important timber species native to southern China. While the single, unstructured breeding strategy was employed in the past three cycles of breeding, it is no longer adequate for managing a m...

  • Article
  • Open Access
3 Citations
1,704 Views
18 Pages

Assessing the Versatility of Bioextraction to Preserve Waterlogged Wood

  • Mathilde Monachon,
  • Charlène Pelé-Meziani,
  • Sathiyanarayanan Ganesan,
  • Sabine de Weck,
  • Friederike Moll-Dau,
  • Janet Schramm,
  • Katharina Schmidt-Ott and
  • Edith Joseph

16 August 2023

An innovative bio method was investigated to extract harmful iron and sulfur species from waterlogged wood samples. The method was compared with a chemical treatment. Both approaches were applied on lacustrine and marine samples, from different wood...

  • Article
  • Open Access
6 Citations
1,713 Views
14 Pages

Comparison of Parameter Estimation Methods Based on Two Additive Biomass Models with Small Samples

  • Nina Xiong,
  • Yue Qiao,
  • Huiru Ren,
  • Li Zhang,
  • Rihui Chen and
  • Jia Wang

16 August 2023

Accurately estimating tree biomass is crucial for monitoring and managing forest resources, and understanding regional climate change and material cycles. The additive model system has proven reliable for biomass estimation in Chinese forestry since...

  • Article
  • Open Access
2 Citations
1,977 Views
14 Pages

Effects of Distance and Neighbor Size on Abies hickelii: The Asymmetric Competition Is Aggravated in an Endangered Species

  • Pablo Antúnez,
  • Iván Hernández-Cruz,
  • Fatima Ibrahim-Abdulsalam,
  • Ricardo Clark-Tapia,
  • Faustino Ruiz-Aquino and
  • César Valenzuela-Encinas

16 August 2023

One of the hypotheses in the field of forest ecology suggests that competition among individual plants is asymmetric or unidirectional. This notion holds particular significance for endangered species, necessitating a comprehensive assessment of the...

  • Article
  • Open Access
3 Citations
2,230 Views
13 Pages

15 August 2023

In the process of vegetation restoration for karst desertification management, the lack of scientific and rational intercropping technology and the blind application of large amounts of nitrogen fertilizer have made the soil the main source of atmosp...

  • Article
  • Open Access
2 Citations
2,633 Views
14 Pages

15 August 2023

Soil salinity is a worldwide problem that adversely affects plant growth and development. Soil salinization in Xinjiang of China is very serious. Ping’ou hybrid hazelnut, as an important ecological and economic tree species, as well as a salt-t...

  • Article
  • Open Access
2 Citations
1,391 Views
13 Pages

15 August 2023

This article presents the results of research on the influence of polymetallic-dust aerial emissions on the pollution levels in the soil and plants by heavy metals, which have been under the impact of the “Severonickel” smelter complex on...

  • Article
  • Open Access
7 Citations
3,034 Views
12 Pages

Diversity of Endomycorrhizal Fungi in Argan Forest Stands: Implications for the Success of Reforestation Programs

  • Matike Ganoudi,
  • Imane Ouallal,
  • Abdelali El Mekkaoui,
  • Majid Mounir,
  • Mohammed Ibriz and
  • Driss Iraqi

15 August 2023

Over the last few decades, argan trees (Argania spinosa L.) skeels have faced harsh ecological conditions and anthropogenic pressure, leading to a dramatic decline in surface and density of cultivation. Nowadays, most techniques used to regenerate ar...

  • Article
  • Open Access
7 Citations
2,588 Views
30 Pages

Genome-Wide Identification, Characterization, and Expression Profiling of the Glutaredoxin Gene Family in Tea Plant (Camellia sinensis)

  • Dong Jiang,
  • Wenhai Yang,
  • Jianhui Pi,
  • Guoqun Yang,
  • Yong Luo,
  • Shenxiu Du,
  • Ning Li and
  • Li-Jun Huang

15 August 2023

Glutaredoxins (GRXs) are a widely distributed group of small oxidoreductases that play an important role in responding to oxidative stress and maintaining redox homeostasis in living organisms. However, there has been no report on the GRX gene family...

  • Review
  • Open Access
12 Citations
3,059 Views
12 Pages

Adaptive Strategies Employed by Clonal Plants in Heterogeneous Patches

  • Pan Yang,
  • Li Huang,
  • Suni He,
  • Xianghua Zeng,
  • Yinyi Chen and
  • Haimiao Wang

15 August 2023

Heterogeneity is widespread in natural environments; as a result, connected clonal ramets often live in areas characterized by patches of different resources. Specifically, clonal plants are frequently affected by conditions of heterogeneous water st...

  • Article
  • Open Access
12 Citations
4,807 Views
23 Pages

Fostering Innovation, Transition, and the Reconstruction of Forestry: Critical Thinking and Transdisciplinarity in Forest Education with Strategy Games

  • Patrick O. Waeber,
  • Mariana Melnykovych,
  • Emilio Riegel,
  • Leonel V. Chongong,
  • Regie Lloren,
  • Johannes Raher,
  • Tom Reibert,
  • Muhammad Zaheen,
  • Oleksandr Soshenskyi and
  • Claude A. Garcia

15 August 2023

Forest education plays a crucial role in achieving the Sustainable Development Goals and promoting sustainable forest management amidst global challenges. However, existing programs struggle to keep pace with rapidly evolving crises and uncertainties...

  • Article
  • Open Access
1 Citations
1,839 Views
12 Pages

15 August 2023

Accurately predicting soil respiration (Rs) has received considerable attention recently due to its importance as a significant carbon flux back to the atmosphere. Even small changes in Rs can have a significant impact on the net ecosystem productivi...

  • Article
  • Open Access
5 Citations
3,318 Views
14 Pages

Trends in Brazil’s Forestry Education: Overview of the Forest Engineering Programs

  • Rodrigo Hakamada,
  • Silvio Frosini de Barros Ferraz,
  • Eduardo Moré Mattos and
  • Belkis Sulbarán-Rangel

15 August 2023

Our study aims to provide a comprehensive overview of forestry programs in Brazil, including a comparative analysis with other countries while considering geographical factors. Over the past 25 years, the number of forestry programs in Brazil has inc...

  • Article
  • Open Access
5 Citations
3,406 Views
16 Pages

15 August 2023

Growth and increment are extremely important in sustainable forest management, and in forest inventory they are periodically measured in a permanent sampling unit. The age of a tree is often unknown, especially in natural, community, and urban forest...

  • Article
  • Open Access
1 Citations
2,457 Views
13 Pages

The Identification of the Abundance of European Larch Trees in Polish Forests

  • Agnieszka Jankowska,
  • Jacek Sagan and
  • Michał Potocki

15 August 2023

The purpose of the study was to identify the abundance of European larch trees in Polish forests, taking into account the size of areas and their location. A dendrometric analysis (volume, age of trees) was performed as a source of knowledge on the a...

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Forests - ISSN 1999-4907