Results 211 to 220 of about 6,079,493 (254)

Linking Ecosystem Risk, Health, Services to Ecological Security Assessment in the Yellow River Basin: Spatiotemporal Dynamics and Nonlinear Driving Characteristics

Land Degradation &Development, EarlyView.
ABSTRACT A scientific assessment of ecological security (ES) and its nonlinear mechanism for key driving factors in the Yellow River Basin (YRB) is of great significance for ecological protection and sustainable development. This study proposes an ES assessment framework, which links ecosystem risk (ER), ecosystem health (EH), and ecosystem services ...
Menghao Yang, Ming Wang, Haipeng Zhang, Zhihong Yao   +3 more
wiley   +1 more source

Species‐Specific Shrub Encroachment Drives Divergent Soil Fungal Assembly Processes and Network Structures in Alpine Meadows

Land Degradation &Development, EarlyView.
ABSTRACT Shrub encroachment is rapidly transforming alpine meadow ecosystems worldwide, yet its consequences for belowground microbial organization remain insufficiently understood, particularly when different shrub species exert contrasting ecological effects.
Yang Liu, Hong Xiao, Yuping Rong, Kuiju Niu, Kai Ma, Yun Wang, Xin Zhang, Linqian Song   +7 more
wiley   +1 more source

Effects of Composite Reclamation Models of Sea Buckthorn, A Pioneer Species in Semi‐Arid Regions, on Soil Quality and Microbial Communities

Land Degradation &Development, EarlyView.
ABSTRACT Open‐pit coal mining severely degrades soil and ecosystem functions, constraining regional sustainability. Vegetation‐based reclamation has therefore been widely adopted as an effective approach to promote soil recovery and ecosystem restoration.
Bo Wen, Yun Li, Haixin Yang, Pengjie Guo, Donggang Guo, Yu Lin, Xianyun Zheng, Quanxi Zhang   +7 more
wiley   +1 more source

Cotton strips as a model substrate for analysis of leaf‐litter‐colonizing microbial assemblages in streams

Limnology and Oceanography: Methods, EarlyView.
Abstract Leaf‐litter decomposition is a key indicator of the functional integrity of stream ecosystems and cotton strips have been employed as a standard substrate for quantification of litter‐decomposition rates in streams across the globe. Cotton strips also offer a standardized method for assessing structural integrity of stream microbial ...
Trinity Shoemaker, Cynthia Nguyen, Scott D. Tiegs, David M. Costello, John J. Kelly   +4 more
wiley   +1 more source

Technopolitical Energy Governance as Administrative Closure: Digitalisation and the Depoliticisation of Energy Politics in Iran and Saudi Arabia

Public Administration and Development, EarlyView.
ABSTRACT Digitalisation is widely framed as a route to more efficient and participatory public administration. In authoritarian settings, however, digital governance often works less as administrative improvement than as a technopolitical instrument for managing dissent and insulating policy from contestation.
Arash Beidollahkhani
wiley   +1 more source

Increased utilitarian value of invasive species in regions with long invasion history may limit public engagement for invasion control

PLANTS, PEOPLE, PLANET, EarlyView.
Positive perceptions of invasive species can hinder effective management, especially if management efforts that are rooted in scientific theories are misaligned with local ecological knowledge. We documented local ecological knowledge about land invasibility as predicted by invasion biology theories. Participants with greater local ecological knowledge
Laurel Mael Philpott, Orou G. Gaoue
wiley   +1 more source

Detection of Molecular High Explosives in Post‐detonation Residue: Environmental Persistence of Days to Months

Propellants, Explosives, Pyrotechnics, EarlyView.
Atmospheric flow tubemass spectrometry detects trace RDX residue in soil and dust collected days to months after large explosive detonations. Post‐detonation soil samples contain detectable RDX aligned with prevailing wind direction and generally decreasing over weeks, while dust and soil samples still show picogram‐level RDX months later, providing ...
Elizabeth H. Denis, Robert G. Ewing, Garret L. Hart, Megan K. Nims, Kelsey A. Morrison, Shannon E. Schrader, Brandy N. Gartman, Michael P. Foxe, Christine Johnson   +8 more
wiley   +1 more source

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An R-Peak Detection Method Based on Peaks of Shannon Energy Envelope

Biomedical Signal Processing and Control, 2013
In a real-time electrocardiogram (ECG) monitoring system, to detect the R-peak in each beat with low delay, high accuracy and high speed is an important and fundamental task. Aiming at satisfying these requirements, a novel R-peak detection algorithm based on Shannon energy envelope (PSEE) is introduced.
Hong-hai Zhu, Jun Dong
exaly   +2 more sources

Onicescu Information Energy in Terms of Shannon Entropy and Fisher Information Densities

Molecular Physics, 2012
Following recent studies concerning the use of information theory in electronic structure theory of atomic and molecular systems, an analytical relationship between Onicescu information energy and densities of Shannon entropy and the two forms of the Fisher information has been presented.
Afshan Mohajeri, Mojtaba Alipour
exaly   +2 more sources

A Unified Carnot Thermodynamic and Shannon Channel Capacity Information-Theoretic Energy Efficiency Analysis

IEEE Transactions on Communications, 2014
In this paper we employ the Shannon channel capacity theorem and classical thermodynamic Carnot's Law to derive the kT ln 2 minimum energy dissipation per bit for a communications channel. We then extend the analysis, incorporating forward error correction (FEC) to show an asymptotic energy efficiency approach to the Carnot/Shannon limit. For the first
Michael Parker, Stuart D Walker
exaly   +4 more sources