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Forests, Volume 14, Issue 8

August 2023 - 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
12 Citations
2,689 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
1,362 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
4 Citations
2,933 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
9 Citations
2,395 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
28 Citations
2,875 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
8 Citations
2,217 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
6 Citations
1,872 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
4 Citations
2,217 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
1,776 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
1,755 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...

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Forests - ISSN 1999-4907Creative Common CC BY license