Real-time biological early-warning system based on freshwater mussels’ valvometry data

Hydrology and earth system sciences, Год журнала: 2024, Номер 28(10), С. 2297 - 2311

Опубликована: Май 30, 2024

Abstract. Quantifying the effects of external climatic and anthropogenic stressors on aquatic ecosystems is an important task for scientific purposes management progress in field water resources. In this study, we propose innovative use biotic communities as real-time indicators, which offers a promising solution to directly quantify impact these ecosystem health. Specifically, investigated influence natural river floods riverine using freshwater mussels (FMs) reliable biosensors. Using valvometry technique, monitored valve gaping FMs analysed both amplitude frequency. The movement was tracked by installing magnet one Hall effect sensor other valve. magnetic between recorded Arduino board, its changes over time were normalised give opening percentage (how open were). data then continuous wavelet transform (CWT) analysis study time-dependent frequency signals. experiments carried out laboratory flume Paglia River (Italy). conducted with two configurations: freely moving bed immobilised vertical rods. Testing configuration necessary because same used order prevent from packing against downstream wall protection cage during or breaking their connection wires. These allowed us verify that show similar responses abrupt flow conditions free mussels. Moreover, produced more neat interpretable signals than free-moving due reduced number features resulting constraints. We response 13 under real flood 31 March 2022. showed rapid significant change gap escalated, confirming general behaviour observed presence increase flow. results highlight effectiveness biosensors timely detection environmental related emphasise utility CWT powerful signal-processing tool data. proposes integration FM development operational biological early-warning systems (BEWSs) aim monitoring protecting ecosystems. Future research should focus extending investigation responsiveness specific (e.g. turbidity, temperature, chemicals) testing applications proposed BEWSs heat waves droughts) hydropeaking, reservoir flushing, chemical contamination).

Язык: Английский

---

Carbon dioxide and methane fluxes in the growing and non-growing season in the Dajiuhu subtropical peatland: A five-year measurement using the eddy covariance technique

Agricultural and Forest Meteorology, Год журнала: 2024, Номер 355, С. 110135 - 110135

Опубликована: Июнь 28, 2024

Язык: Английский

---

Exploring the relative contribution of flood regimes and climatic factors to Carex phenology in a Yangtze River-connected floodplain wetland

The Science of The Total Environment, Год журнала: 2022, Номер 847, С. 157568 - 157568

Опубликована: Июль 23, 2022

Язык: Английский

---

Integrated effects of meteorological factors, edaphic moisture, evapotranspiration, and leaf area index on the net primary productivity of Winter wheat − Summer maize rotation system

Field Crops Research, Год журнала: 2023, Номер 302, С. 109080 - 109080

Опубликована: Авг. 2, 2023

Язык: Английский

---

Cloud-Based Remote Sensing for Wetland Monitoring—A Review

Remote Sensing, Год журнала: 2023, Номер 15(6), С. 1660 - 1660

Опубликована: Март 19, 2023

The rapid expansion of remote sensing provides recent and developed advances in monitoring wetlands. Integrating cloud computing with these techniques has been identified as an effective tool, especially for dealing heterogeneous datasets. In this study, we conducted a systematic literature review (SLR) to determine the current state-of-the-art knowledge integrating results SLR revealed that platform-as-a-service was only service model implemented practice wetland monitoring. Remote applications included prediction, time series analysis, mapping, classification, change detection. Only 51% reviewed literature, focused on regional scale, used satellite data. Additionally, found technologies are not integrated enough benefit from their potential Despite gaps, analysis economic benefits could be achieved by implementing To address gaps pave way further research, propose Internet Things (IoT) monitor wetlands effectively.

Язык: Английский

---

Water level drawdown makes boreal peatland vegetation more responsive to weather conditions

Global Change Biology, Год журнала: 2023, Номер 29(19), С. 5691 - 5705

Опубликована: Авг. 14, 2023

Abstract Climate warming and projected increase in summer droughts puts northern peatlands under pressure by subjecting them to a combination of gradual drying extreme weather events. The combined effect those on peatland functions is poorly known. Here, we studied the impact long‐term water level drawdown (WLD) contrasting conditions leaf phenology biomass production ground vegetation boreal peatlands. Data were collected during two growing seasons from WLD experiment including rich poor fen an ombrotrophic bog. Results showed that had strong both area development production, these responses differed between types. In bog, increased plant growth, while fen, reduced growth vegetation. Plant groups their response, as graminoids, shrubs tree seedlings benefited it. addition, adjusted lower WTs, was more responsive short‐term climatic variations. warmer resulted greater maximum earlier peaking index, vascular plants Sphagnum mosses at sites. particular, graminoids benefitted conditions. change towards sites general related observed transition functional type composition arboreal

Язык: Английский

---

Research Progress in the Field of Peatlands in 1990–2022: A Systematic Analysis Based on Bibliometrics

Land, Год журнала: 2024, Номер 13(4), С. 549 - 549

Опубликована: Апрель 19, 2024

Peatlands are major natural carbon pool in terrestrial ecosystems globally and essential to a variety of fields, including global ecology, hydrology, ecosystem services. Under the context climate change, management conservation peatlands has become topic international concern. Nevertheless, few studies have yet systematized overall dynamics existing peatland research. In this study, based on an approach integrating bibliometrics literature review, we systematically analyzed research from perspective. Alongside traditional bibliometric analyses (e.g., number publications, impact, hot areas), recent top keywords were found, ‘oil palm’, ‘tropical peatland’, ‘permafrost’, so on. Furthermore, six topics identified: (1) development impacts degradations, (2) history factors formation, (3) chemical element contaminants peatlands, (4) tropical (5) peat adsorption its humic acids, (6) influence ecosystem. addition, review found that adverse consequences degradation change merit greater attention, peatland-mapping techniques suitable for all regions lacking, unified assessment stocks urgently needs be established, spanning countries, reliable system assessing peatland-ecosystem services implemented expeditiously. argued enhanced integration will bridge knowledge gaps facilitate systematic synthesis as complex systems, which is imperative need.

Язык: Английский

---

Enhancing peatland monitoring through multisource remote sensing: optical and radar data applications

International Journal of Remote Sensing, Год журнала: 2024, Номер 45(18), С. 6372 - 6394

Опубликована: Авг. 30, 2024

Peatlands play a pivotal role in global carbon cycling and the conservation of biodiversity even though they cover small fraction Earth's terrestrial surface. These ecosystems are, however, increasingly vulnerable due to climate change impacts anthropogenic activities, leading significant degradation many areas. This review compiles analyses various studies that employ remote sensing for comprehensive peatland mapping monitoring. Remote offers detailed insights into critical features, including classification vegetation, assessment water table dynamics, vegetation condition diversity estimation stocks. Furthermore, delineates utility monitoring recovery processes restored peatlands, highlighting scarcity long-term studies. It also emphasizes potential integrating hyperspectral, multispectral SAR data as well cross-scale analyses. Concluding with future directions, underscores necessity enhanced upscaling techniques, integration multi-sensor application modelling enrich our understanding management ecosystems.

Язык: Английский

---

Changes in soil dissolved organic matter optical properties during peatland succession

Ecological Indicators, Год журнала: 2022, Номер 143, С. 109386 - 109386

Опубликована: Сен. 6, 2022

Dissolved organic matter (DOM) is the most active component in soil environment. Understanding chemical diversity of DOM and interaction physicochemical properties are key to managing peatland under succession. In this study, we aimed understand effects succession on DOM. We collected samples (topsoil: 0–10 cm, subsoil: 10–20 cm) from during different stages mid–high latitude northern regions, determined changes quantity quality using fluorescence spectroscopy parallel factor analysis. found that altered effectiveness nutrients water content. During succession, content humus-like substances topsoil increased protein-like material decreased, whereas subsoil remained stable. pH was affecting change composition The variation may be related vegetation composition. results suggest fluorescent components respond significantly driven by conclusion, our reveal optical factors influence peatlands This suggests can modified simultaneous cover.

Язык: Английский

---

Heterogeneous impacts of carbon emission trading on green innovation: Firm-level in China

Energy & Environment, Год журнала: 2023, Номер 35(7), С. 3504 - 3529

Опубликована: Апрель 19, 2023

As an important market-based environmental policy, carbon emissions trading has played increasingly role in promoting energy conservation, emission reduction, and green innovation. The Chinese government started to implement a Carbon Emission Trade scheme 2013 successively. This study uses multi-period difference investigate the impact of on innovation panel data listed companies from 2008 2020. results show that: (1) significantly improves by 0.1916%. robust test verifies results. (2) is heterogeneous at regional, industrial, firm levels. From regional level, stronger effect regions with high marketization low emissions. industry policy effects are more pronounced technology-intensive industries power industry, negative generated Chemical steel, paper industries. enterprise shows better state-owned enterprises, large enterprises. (3) enhances reducing corporate financing constraints, improving human capital, strengthening government. (4) enhancement balances benefits. Increasing price, market size activity inhibit increase Based findings, provides new reference for establishment market.

Язык: Английский

---