Results 111 to 120 of about 8,405,149 (309)

Spatiotemporal dynamics and drivers of algal blooms in chinese lakes: A multi-phenological index analysis

open access: yesEcological Indicators
Algal blooms (AB) caused by eutrophication pose a global threat to freshwater ecosystems and human water security. Existing studies lack standardized definitions and methodologies for phenological indicators, hindering quantitative comparisons and ...
Yufeng Yang   +4 more
doaj   +1 more source

Technical Feasibility Study of Autonomous Field Robot‐Based on‐the‐go Assessment of Soil Nutrients Using Ion‐Sensitive Field‐Effect Transistors

open access: yesAdvanced Robotics Research, EarlyView.
Autonomous field robots equipped with ISFET‐based sensors enable rapid, spatially resolved soil nutrient analysis directly in the field. An automated system based on the BoniRob platform is presented for standardized on‐site extraction and measurement of key macronutrients and soil pH.
Vadim Riedel   +3 more
wiley   +1 more source

An Ecological Quality Evaluation of Large-Scale Farms Based on an Improved Remote Sensing Ecological Index

open access: yes
The ecological quality of large-scale farms is a critical determinant of crop growth. In this paper, an ecological assessment procedure suitable for agricultural regions should be developed based on an improved remote sensing ecological index (IRSEI ...
Jun Wang   +3 more
core   +1 more source

Nutritional resilience underpins fish invasion in subtropical waters

open access: yesCommunications Earth & Environment
Biological invasions are often explained by species traits and environmental tolerance, but the nutritional quality of available food is rarely considered.
Xiao Wang   +6 more
doaj   +1 more source

Revealing long-term dynamics and spatiotemporal drivers of anthropogenic nutrients inputs in China: The effects of dietary and socioeconomic factors

open access: yesResources, Environment and Sustainability
Anthropogenic nutrient inputs in developing countries have substantially shaped global nutrient balance pattern for the past decades, responsible for the expanding eutrophication and pollutions. The massive alteration of socioeconomic factors and dietary
Jia Liu   +4 more
doaj   +1 more source

CD9+ B Cells Induce T Follicular Helper Cell Apoptosis to Regulate Germinal Center Regression

open access: yesAdvanced Science, EarlyView.
A unique subset of CD9+ B cells regulates germinal center B (GC‐B) cell regression by inducing T follicular helper (Tfh) cell apoptosis through multiple signaling pathways, such as ALCAM‐CD6. FOXP1 plays a key role in GC‐B cell differentiation. These findings clarify mechanisms of GC degeneration and termination and offer potential targets for adenoid ...
Wenjing Liao   +27 more
wiley   +1 more source

Unraveling the Impacts of River Network Connectivity on Ecological Quality Dynamics at a Basin Scale

open access: yes
The ecological quality of river basins is significantly influenced by the complex network of river structures and their connectivity. This study measured the temporal and spatial variability of ecological quality, as reflected by remote sensing ...
Baoshan Cui   +7 more
core   +1 more source

Consensus Formation and Change are Enhanced by Neutrality

open access: yesAdvanced Science, EarlyView.
Neutral agents are shown to enhance both the formation and overturning of consensus in collective decision‐making. A general mathematical model and experiments with locusts and humans reveal that neutrality enables robust consensus via simple interactions and accelerates consensus change by reducing effective population size.
Andrei Sontag   +3 more
wiley   +1 more source

Heavy metals in mining and agricultural ecotone: vertical distribution, ecological risks, and health implications

open access: yesScientific Reports
Heavy metal contamination in the mining–agriculture ecotones is influenced by lithogenic enrichment, industrial emissions, and agricultural inputs. Currently, knowledge of the vertical patterns and risk pathways in these environments is insufficient.
Yongjiang Zhang   +6 more
doaj   +1 more source

Sources and distribution of soil organic matter in mangrove wetland of Qi’ao Island: Insights from stable isotope composition and fluorescence spectroscopy

open access: yesEcological Indicators
Mangrove coastal wetland soils store a large amount of organic matter (OM), playing a significant role in the global carbon and nitrogen cycle. However, the sources and distribution of soil OM in mangrove wetlands remain unclear.
Haixiao Zhao   +5 more
doaj   +1 more source

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