Results 51 to 60 of about 4,928 (219)

Large‐scale characterization of horizontal forest structure from remote sensing optical images

Remote Sensing in Ecology and Conservation, EarlyView.
Sub‐meter resolution remote sensing data and tree crown segmentation techniques hold promise in offering detailed information that can support the characterization of forest structure from a horizontal perspective, offering new insights in the tree crown structure at scale.
Xin Xu, Martin Brandt, Xiaowei Tong, Maurice Mugabowindekwe, Yuemin Yue, Sizhuo Li, Qiue Xu, Siyu Liu, Florian Reiner, Kelin Wang, Zhengchao Chen, Yongqing Bai, Rasmus Fensholt   +12 more
wiley   +1 more source

Characterizing the Spatial Variations of Forest Sunlit and Shaded Components Using Discrete Aerial Lidar

Remote Sensing, 2020
Forest three-dimensional (3-D) structure, in the vertical dimension, consists of at least two components, including overstory and a forest background matrix (i.e., shrubs, grass, and bare earth).
Xiaofei Wang, Guang Zheng, Zengxin Yun, Zhaoshang Xu, L. Monika Moskal, Qingjiu Tian   +5 more
doaj   +1 more source

Using Airborne Laser Scanning and Sentinel‐2 to Understand Subcanopy Light Regimes and Understory Diversity of Vascular Plants in Temperate Mountain Forests

Remote Sensing in Ecology and Conservation, EarlyView.
This study demonstrates that not just Airborne Laser Scanning, but also Sentinel‐2 can effectively estimate absolute canopy cover and canopy cover heterogeneity ‐ structural metrics that determine the subcanopy light regime, found to be linked to the vascular plant species richness in the understory of temperate mountain forests.
Felix Wieland‐Glasmann, Cornelius Senf, Kristin H. Braziunas, Rupert Seidl, Peter Annighöfer   +4 more
wiley   +1 more source

Water relations of pine seedlings in contrasting overstory environments

, 2009
Overstory conditions influence understory microclimate and resource availability, leading to gradients in evaporative demand and moisture availability that influence seedling water relations. Partial canopies may either reduce seedling moisture stress by
Palik, Brian J., Webster, Christopher R., Powers, Matthew D., Pregitzer, Kurt S.   +3 more
core   +1 more source

Response of foliar functional traits to experimental N and P addition among overstory and understory species in a tropical secondary forest

Global Ecology and Conservation, 2020
The plasticity of morphological, physiological and developmental traits can reflect the plant adaptation to diverse environmental changes. How the foliar morphological and physiological traits with different functional groups in response to N and P ...
Qifeng Mo, Wenjuan Wang, Yiqun Chen, Zhongtong Peng, Qing Zhou   +4 more
doaj   +1 more source

Comprehensive evaluation of global CI, FVC, and LAI products and their relationships using high-resolution reference data

Science of Remote Sensing, 2022
In recent decades, several global clumping index (CI), fractional vegetation cover (FVC), and leaf area index (LAI) products have been generated using a range of optical satellite sensors.
Sijia Li, Hongliang Fang, Yinghui Zhang, Yao Wang   +3 more
doaj   +1 more source

A high‐altitude thermal infrared method for estimating moose abundance and demography in Rocky Mountain National Park, USA

Wildlife Biology, EarlyView.
Resource managers require accurate estimates of large herbivore abundance and demography to maintain ecological integrity. Common methods to count these species, including observations from low altitude helicopter flights, may conflict with other protected area management objectives and struggle to produce precise estimates for more cryptic species. To
Hanem G. Abouelezz, N. Thompson Hobbs
wiley   +1 more source

Does a decision support tool designed to depict West Nile virus risk explain variation in ruffed grouse Bonasa umbellus use of managed forests?

Wildlife Biology, EarlyView.
Infectious diseases are commonly cited as significant contributors to wildlife population declines. It is, therefore, important to investigate the extent to which tools designed to mitigate the effects of infectious diseases explain wildlife responses to habitat management.
Jacob Goldman, Darin J. McNeil, Lauren M. Chronister, Randall Koleck, Samuel Lapp, Jeffery T. Larkin, Reina Tyl, Justin Kitzes, Jeffery L. Larkin   +8 more
wiley   +1 more source

Spatially Distributed Overstory and Understory Leaf Area Index Estimated from Forest Inventory Data

, 2022
Forest change affects the relative magnitudes of hydrologic fluxes such as evapotranspiration (ET) and streamflow. However, much is unknown about the sensitivity of streamflow response to forest disturbance and recovery.
Sara A. Goeking, David G. Tarboton
core   +1 more source

Regional-scale data assimilation with the Spatially Explicit Individual-based Dynamic Global Vegetation Model (SEIB-DGVM) over Siberia

Progress in Earth and Planetary Science, 2021
This study examined the regional performance of a data assimilation (DA) system that couples the particle filter and the Spatially Explicit Individual-based Dynamic Global Vegetation Model (SEIB-DGVM).
Hazuki Arakida, Shunji Kotsuki, Shigenori Otsuka, Yohei Sawada, Takemasa Miyoshi   +4 more
doaj   +1 more source