Results 111 to 120 of about 125,509 (280)

Drivers of remotely sensed tree height heterogeneity across spatial scales: Tree species diversity effects depend on local conditions and forest type

open access: yesEcological Indicators
Forests with high structural complexity provide a variety of ecosystem functions and services. They are further associated with greater ecosystem stability.
Elisabeth Rahmsdorf   +8 more
doaj   +1 more source

Seasonal Dynamics of Soil Multitrophic Biodiversity, Co‐Occurrence Network and Assembly Mechanisms Under Typical Vegetation Restoration Patterns in Karst Region

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Previous studies often overlooked the dynamic effects of karst vegetation restoration on soil multi‐trophic biodiversity and the underlying community‐assembly mechanisms. To fill this gap, we performed a seasonal comparative analysis of soil biodiversity, co‐occurrence network architecture, and assembly processes across three representative ...
Xiang Zhang   +8 more
wiley   +1 more source

Evaluating the reliability of the 1-meter resolution meta-estimated global canopy height map for estimating forest structural metrics in Alpine environment

open access: yesEcological Informatics
Monitoring forests globally through the assessment of structural characteristics is indispensable in times of increasing disturbances and biodiversity loss.
Michele Torresani   +12 more
doaj   +1 more source

A Machine-Learning Approach to PolInSAR and LiDAR Data Fusion for Improved Tropical Forest Canopy Height Estimation Using NASA AfriSAR Campaign Data

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2018
This paper investigates the benefits of integrating multibaseline polarimetric interferometric SAR (PolInSAR) data with LiDAR measurements using a machine-learning approach in order to obtain improved forest canopy height estimates.
Maryam Pourshamsi   +3 more
semanticscholar   +1 more source

Ecosystem retrogression enhances cross‐domain microbial stability and increases the genetic potential for nutrient cycling

open access: yesmLife, EarlyView.
Abstract Ecosystem retrogression drives nutrient depletion, reduced productivity, and profound reorganization of soil microbial communities. Using amplicon sequencing and genome‐resolved metagenomics, we examined how cross‐domain microbial networks and functional gene potential respond to long‐term phosphorus and nitrogen limitation along the well ...
Javier A. Ceja‐Navarro   +11 more
wiley   +1 more source

Measuring rainfall to a forest canopy: an assessment of the performance of canopy level raingauges [PDF]

open access: yesHydrology and Earth System Sciences, 2004
Accurate rainfall measurements are crucial for water resource and environmental assessments but can be difficult to achieve in extensive areas of forest. This paper reviews the different techniques for measuring rainfall to a forest area and presents
M. Robinson   +6 more
doaj  

Canscora agni (Gentianaceae), a new species from the fire‐prone Indian savannas

open access: yesNordic Journal of Botany, EarlyView.
We describe Canscora agni from the Indian savannas as a distinct species which differs from its allied species Canscora alata in having fewer and shorter leaves, pedicel‐wings unequal across the length, bracts with glandular hair on the margins, calyx‐wings being four, wider, up to 2.3 mm, with distinct reticulate venation and having ovary length up to
Ashish N. Nerlekar   +1 more
wiley   +1 more source

Canopy Height Estimation in French Guiana with LiDAR ICESat/GLAS Data Using Principal Component Analysis and Random Forest Regressions

open access: yesRemote Sensing, 2014
Estimating forest canopy height from large-footprint satellite LiDAR waveforms is challenging given the complex interaction between LiDAR waveforms, terrain, and vegetation, especially in dense tropical and equatorial forests.
Ibrahim Fayad   +7 more
doaj   +1 more source

Naturalness indicators of forests in Southern Sweden derived from the canopy height model

open access: yesEuropean Journal of Remote Sensing
Forest canopies embody a dynamic set of ecological factors, acting as a pivotal interface between the Earth and its atmosphere. They are not only the result of an ecosystem's ability to maintain its inherent ecological processes, structures, and functions but also a reflection of human disturbance.
Marco L. Della Vedova, Mattias Wahde
openaire   +3 more sources

Life history stability under climate change: a wildflower at the northern edge of its range

open access: yesNordic Journal of Botany, EarlyView.
Stabilities of life history traits for a widespread native perennial wildflower, Rudbeckia laciniata L., are described for five populations near the northern edge of its range in North America. Theory proposes that such populations experience variable levels of stress as suitable abiotic conditions shift north or south from year to year, which ...
Robert J. Lamb, Patricia A. MacKay
wiley   +1 more source

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