A comparative study of coastal wetland soil bacterial and fungal colonies following Spartina alterniflora invasion DOI Creative Commons

Zhiyong Zhu,

Chengfeng Yu,

Min Xu

et al.

Ecological Indicators, Journal Year: 2023, Volume and Issue: 156, P. 111207 - 111207

Published: Nov. 6, 2023

The current body of research on the impact plant invasion bacterial and fungal communities in coastal wetlands remains limited. This study focuses analysis soil samples collected from at three distinct stages: before (BI), during (DI), after Spartina alterniflora (AI). Overall, total organic carbon (TOC), moisture, available phosphorus (AP), potassium (AK) changed significantly invasion, with these changes explaining variation within colonies. Nevertheless, factors colonies had little statistical significance. Additionally, composition functional diversity exhibited more significant invasion. Specifically, were observed Tenericutes, Actinobacteria, Fusobacteria, Patescibacteria, while a enrichment genus Prevotellaceae_UCG_001 was noted However, only p value reduction AI compared to BI Dothideomycete order level fungi. For colonies, abundance substances involved glycosphingolipid synthesis other metabolic pathways KEGG Level 3 also decreased significantly, their ecological niche width increased significantly. Conversely, somewhat shape abundance, but they reacted reduced sensitivity. neutral community model, which showed higher rates migration for both fungi bacteria, validated outcomes. dynamic that occur ecosystems as result are highlighted work.

Language: Английский

Mapping and classification of Liao River Delta coastal wetland based on time series and multi-source GaoFen images using stacking ensemble model DOI Creative Commons

Huiya Qian,

Nisha Bao,

Dantong Meng

et al.

Ecological Informatics, Journal Year: 2024, Volume and Issue: 80, P. 102488 - 102488

Published: Jan. 20, 2024

Language: Английский

Citations

19
Research on tourism ecological safety evaluation of Huizhou Cultural and ecological reserve based on entropy -TOPSIS DOI Creative Commons
Yanlong Guo,

Jiaying Yu,

Yelin Zhu

et al.

Heliyon, Journal Year: 2024, Volume and Issue: 10(2), P. e24325 - e24325

Published: Jan. 1, 2024

Tourism ecological security is the basic guarantee for sustainable development of tourist sites, Huizhou Cultural and Ecological Reserve an important area im-plementation protection in China, it great significance to carry out research on tourism security. The study adopted DPSIR model construct a comprehensive evaluation index system used entropy value-TOPSIS ArcGIS software analyze inter-annual changes spatial change characteristics area. results show that: firstly, safety from 2010 2021 shows trend "decreasing-increasing" overall increasing trend; secondly, all sub-systems or stabilizing state recent years during 2010–2021; response increas-ing years; years. Secondly, subsystems showed increase stabilization between 2021, are main systems improve area; thirdly, difference level each county increased then narrowed usually shifted neighboring levels, probability transfer-ring across levels was relatively small. , Shexian County, Yixian Qimen Tunxi District, eco-safety Huangshan Hui-zhou Jixi Xiuning County at faster rate than other counties. further extends scale district level, tries explore relevant factors affecting tourism, proposes countermeasures based re-sults, which will bring some reference value governance policy formulation this kind research.

Language: Английский

Citations

8
Distribution and disturbance dynamics of habitats suitable for Suaeda salsa DOI Creative Commons

Chenchen Cao,

Fangli Su, Fei Song

et al.

Ecological Indicators, Journal Year: 2022, Volume and Issue: 140, P. 108984 - 108984

Published: May 19, 2022

Suaeda salsa, as the last biological barrier of coastal wetlands from land to sea, is one best nature-based restoration solution for shoreline stabilization and soil improvement in wetlands. The quality habitat determines potential scope wetland ecological restoration. To enlarge salsa area prevent erosion degradation shorelines, we assessed suitability habitats growth identified causes encroachment into areas suitable growth. Assessing community its disturbance status can not only effectively determine restoration, but also propose targeted solutions according interference factors. Moreover, this way greatly improve survival rate coverage reduce unnecessary input loss, enhance ability resist degradation, maintain stability integrity ecosystem. In study, based on data 180 sampling points Liaohe estuary wetland, was identified, MaxEnt model (habitat model) used analyze distribution area. interannual changes reclamation activities during past 30 years were extracted Landsat remote sensing images, temporal spatial dynamic relationship between analyzed. dominant factors affecting water salinity well Cd Zn levels, with influence weights 49.1%, 28.9%, 18.0%, respectively, a total weight 96%. Compared existing 596 hm2 vegetation highly 12,306 hm2, whereas medium 12,100 hm2. Reclamation aquaculture accounted 33.31% main reasons fragmentation. study explained difficulty due unsuitable quality, revealed strong conflict environmental protection, suggesting that protection should consider industrial strategy. reconstruction, sustainable management communities be achieved by reducing proportion areas. This improves theory degraded provides theoretical basis programs.

Language: Английский

Citations

28
Microbial composition in saline and alkaline soils regulates plant growth with P-solubilizing bacteria DOI

Xiaodan Sun,

Wei Wang,

Shijie Yi

et al.

Applied Soil Ecology, Journal Year: 2024, Volume and Issue: 203, P. 105653 - 105653

Published: Sept. 24, 2024

Language: Английский

Citations

6
Spatiotemporal Dynamics of Ecological Vulnerability and Its Influencing Factors in Shenyang City of China: Based on SRP Model DOI Open Access

Hanlong Gu,

Chongyang Huan,

Fengjiao Yang

et al.

International Journal of Environmental Research and Public Health, Journal Year: 2023, Volume and Issue: 20(2), P. 1525 - 1525

Published: Jan. 14, 2023

For Shenyang, the central city of Northeast China, its municipal-level Territorial Spatial Planning is great significance to whole China. an essential carrier China’s ecological civilization construction. The demarcation “three districts and three lines” defines scope protection areas, which guiding future development regional vulnerability assessment can provide reference for pattern planning red lines in lines”. In order explore spatial distribution predict trend guide construction Shenyang certain basis Shenyang’s delineation This paper based on “sensitivity-resilience-pressure” model selected 13 indexes, evaluate from 2010 2020. Furthermore, characteristics influencing factors are summarized using autocorrelation analysis geographic detector model, 2025 predicted by CA-Markov model. results show that: (1) 2010, 2015 2020, total area slightly vulnerable areas was large, showed a gradually change south north west east. (2) geographical detectors that normalized difference vegetation index, economic density nighttime light intensity main driving Shenyang. (3) forecast result reliable. 2025, will be mainly extreme increase 2025. research some Planning, have promoting sustainable balancing development.

Language: Английский

Citations

13
Spatial Relationships and Impact Effects between Urbanization and Ecosystem Health in Urban Agglomerations along the Belt and Road: A Case Study of the Guangdong-Hong Kong-Macao Greater Bay Area DOI Open Access

Yan Wu,

Yingmei Wu, Chen Li

et al.

International Journal of Environmental Research and Public Health, Journal Year: 2022, Volume and Issue: 19(23), P. 16053 - 16053

Published: Nov. 30, 2022

A healthy ecosystem is fundamental for sustainable urban development. Rapid urbanization has altered landscape patterns and ecological functions, resulting in disturbances to health. Exploring the effects of on health spatial relationships between them significant cities along “Belt Road” aiming achieve regional This study took Guangdong–Hong Kong–Macao Greater Bay Area (GBA) as an example measured level (UL) index (EHI) from 2000 2020 using multisource data. We used bivariate autocorrelation, geographically weighted regression model (GWR), optimal parameters-based geographical detector (OPGD) clarify impact relationship multiple perspectives. The major findings this were: (1) EHI GBA decreased significantly during period, dropping 0.282 0.255, whereas UL increased significantly, exhibiting opposite distribution features; (2) there was a negative correlation heterogeneity high–low low–high types GBA; (3) were predominant becoming more pronounced central GBA. Moreover, had increasingly effect, leading deterioration health, Population drove land urbanization, which became main factor affecting Overall, effect with being particularly prominent core junctions GBA, require urgent attention. results provide basis decision making context steady protection Road”.

Language: Английский

Citations

18
Estimating soil organic carbon using UAV and Sentinel-2 images and multilayer perceptron regression in Coastal Wetland DOI

Xia Lu,

Keke Liu, Shuang He

et al.

International Journal of Remote Sensing, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 26

Published: Jan. 16, 2025

Hyperspectral imagery from an Unmanned Aerial Vehicle (UAV) has been used to predict soil organic carbon (SOC) content. This study compared UAV hyperspectral with Sentinel-2A multispectral and spectra in the laboratory SOC content Suaeda salsa (S. salsa) coastal wetland. Characteristic variables were determined through correlation analysis comparing observed constructed spectral indices of SOC, index variables, bands. Predict Models by multilayer perceptron (MLP), prediction accuracy was evaluated spatial maps produced. The results showed that estimating using UAV, Sentinel imagery, great potential when MLP algorithm. can be accurately predicted without map. estimation better based on than model determination coefficients (R2) 0.838 0.638, root mean square error (RMSE) 0.398 0.596 g kg−1, ratio performance deviations (RPD) 2.485 1.660, bias − 0.028 0.085 respectively. demonstrated stability uncertainty standard (SD) 0.226 0.291 generated both presented more subtle variation information interpolation results. Although lower Sentinel-2A, could disclose fine distribution at local level. estimate wetlands but a higher cost freely available images. We recommend sentinel regional, national, or even global levels.

Language: Английский

Citations

0
Classification of coastal wetlands in the Liaohe Delta with multi-source and multi-feature integration DOI

Tongtong Shi,

Chang Wang, Zhang Wen

et al.

Environmental Monitoring and Assessment, Journal Year: 2025, Volume and Issue: 197(3)

Published: Feb. 5, 2025

Language: Английский

Citations

0
Suaeda Salsa Hyperspectral Index (SSHI) for mapping S. salsa in coastal wetlands using hyperspectral satellite imagery: case studies in northern coastal China DOI Creative Commons

Mengyao Zhang,

Yinghai Ke, Kun Shang

et al.

GIScience & Remote Sensing, Journal Year: 2025, Volume and Issue: 62(1)

Published: May 9, 2025

Language: Английский

Citations

0
Suaeda salsa spectral index for Suaeda salsa mapping and fractional cover estimation in intertidal wetlands DOI
Yinghai Ke, Yue Han,

Liyue Cui

et al.

ISPRS Journal of Photogrammetry and Remote Sensing, Journal Year: 2023, Volume and Issue: 207, P. 104 - 121

Published: Dec. 2, 2023

Language: Английский

Citations

8