Evolution Characteristics of Wetland Landscape Pattern and Its Impact on Carbon Sequestration in Wuhan from 2000 to 2020 DOI Creative Commons

Jufang Song,

Ruidong Zhang,

Yiran Wang

et al.

Land, Journal Year: 2023, Volume and Issue: 12(3), P. 582 - 582

Published: Feb. 28, 2023

The wetland ecosystem is an important organic carbon pool on earth, and rich storage high density are present in vegetation soil. However, large areas of wetlands have been drained, the area has shrunk, degree fragmentation intensified due to rapid urbanization past 20 years. Enhancing ecological sequestration capacity a key task peaking neutrality, studying function urban urgently needed. In this work, Wuhan was taken as main research object. landscape pattern index calculated evolution characteristics were analyzed using remote sensing image interpretation data from 2000 2020. CASA model used estimate explore spatial temporal distribution sequestration. Spearman correlation study effects different parameters Results indicate following: (1) From 2020, total reduced by 158.99 km2, among which lakes, reservoirs marshes decreased 60.65 55.51 km2 41.77 respectively. patches irregularity increased, LPI, aggregation diversity decreased. (2) years, amount first then lowest 2010 (571,900 t). 2020 same that 2000, reaching 800,000 t. (3) A larger means more concentrated denser distribution, complex shape, diverse type, stronger for wetland. On contrary, becomes fragmented regular, disordered planning leads reduction types unit area, will decrease sink wetlands.

Language: Английский

Assessment of the sediment load in the pearl river estuary based on land use and land cover changes DOI
Chenxu Ji, Yuanzhi Zhang, Jens C. Nejstgaard

et al.

CATENA, Journal Year: 2025, Volume and Issue: 250, P. 108726 - 108726

Published: Jan. 24, 2025

Language: Английский

Citations

1
Identification, Mechanism and Countermeasures of Cropland Abandonment in Northeast Guangdong Province DOI Creative Commons

Xiaojian Li,

Linbing Ma,

Xi Liu

et al.

Land, Journal Year: 2025, Volume and Issue: 14(2), P. 246 - 246

Published: Jan. 24, 2025

Cropland serves as the most vital resource for agricultural production, while its security is primarily threatened by abandonment. Northeast Guangdong Province features a fragmented terrain and faces significant issue of farmland It crucial to analyze phenomenon cropland abandonment safeguard food security. However, due limitations in data sources attribution methods, previous studies struggled comprehensively characterize driving mechanisms abandoned land. Using from Sentinel time series remote-sensing images, we employed land use change trajectory method map Jiaoling County 2019 2023. Furthermore, proposed novel analytical framework quantify influence pathways interaction effects The results indicate that: (1) overall accuracy extraction 79.6%. During study period, rate showed trend “gradual rise followed sharp decline”, area reached maximum 2021. southeastern rural areas was serious stubborn. (2) slope has greatest explanatory power abandonment, total cultivated area, aggregation index cropland, distance road. Each factor threshold effect. (3) Topography, location, agriculture factors directly or indirectly affect rate, with direct influences 0.247, 0.255, −0.256, respectively. research findings offer valuable scientific guidance managing deepen our understanding formation mechanisms.

Language: Английский

Citations

1
Spatiotemporal changes of wetlands in China during 2000–2015 using Landsat imagery DOI
Meng Zhang, Huaiqing Zhang, Bo Yao

et al.

Journal of Hydrology, Journal Year: 2023, Volume and Issue: 621, P. 129590 - 129590

Published: April 29, 2023

Language: Английский

Citations

21
Long-term response of runoff and sediment load to spatiotemporally varied rainfall in the Lhasa River basin, Tibetan Plateau DOI
Dongmei Zhao, Donghong Xiong, Baojun Zhang

et al.

Journal of Hydrology, Journal Year: 2023, Volume and Issue: 618, P. 129154 - 129154

Published: Jan. 23, 2023

Language: Английский

Citations

18
Multi-scale spatiotemporal wetland loss and its critical influencing factors in China determined using innovative grid-based GWR DOI Creative Commons
Aohua Tian, Tingting Xu, Jay Gao

et al.

Ecological Indicators, Journal Year: 2023, Volume and Issue: 149, P. 110144 - 110144

Published: March 20, 2023

Wetlands serve as a critical habitat for many plants and animals. However, with urban expansion other processes, the wetlands in China are lost at an alarming rate recent decades. This study quantifies pace of wetland loss past two decades investigates hidden mechanisms via proposed innovative grid-based geographically weighted regression computing unified device architecture (Grid-GWR-CUDA) method. Also assessed this is relative importance four natural factors (precipitation, digital elevation model (DEM), slope, evaporation), human related (distance to city, distance roads, population, gross domestic product (GDP)) both national regional levels. The some compared across different regions. results indicated that GDP, population size DEM three most significant impacting on level. They still influential regions sub-national level while precipitation important factor only eastern Therefore, main causes attributed socioeconomic activities. Compared traditional (GWR) method, Grid-GWR-CUDA method enough handle large data volumes efficiently retaining all samples fine (e.g., 30 m) spatial resolution because computational efficiency significantly improved graphics processing unit (GPU) acceleration. It improves accuracy by several folds over ordinary least square GWR. has potential predict future if supplied latest land cover data.

Language: Английский

Citations

17
Exploring the long-term dynamics of detailed wetland types and their driving forces in coastal metropolitan areas from 1990 to 2020 DOI Creative Commons
Kaifeng Peng, Weiguo Jiang, Peng Hou

et al.

International Journal of Applied Earth Observation and Geoinformation, Journal Year: 2024, Volume and Issue: 132, P. 104012 - 104012

Published: July 13, 2024

The Guangxi Beibu Gulf Economic Zone (GBGEZ) and Guangdong–Hong Kong–Macao Greater Bay Area (GBA) have rich wetlands. However, long-term maps with detailed wetland types in these two regions are scarce, studies on the driving forces of changes insufficient. To this end, our study produced to explore dynamics their forces. From 1990 2020, mangrove, tidal flat, coastal shallow water reservoir had similar change trends metropolitan areas. For GBGEZ between serious degradation, slight obvious restoration areas 569.23 km2, 426.89 274.83 km2 375.78 respectively; for GBA, four 986.80 1854.63 547.34 2183.57 respectively. Overall, degradation GBA were significantly larger than that GBGEZ. Sample-based analysis indicated mainly attributed direct drivers, suffering more from influence drivers. Specifically, over 90 % degradations 89 restorations affected by drivers (e.g. aquaculture). Serious most land reclamation) 2010 indirect 2020 shrinkage). restorations, them factors expansion) while new reservoir). could offer valuable information support protection urban sustainable development.

Language: Английский

Citations

8
Study on spatiotemporal changes of wetlands based on PLS-SEM and PLUS model: The case of the Sanjiang Plain DOI Creative Commons

Jinhao Shi,

Peng Zhang, Yang Liu

et al.

Ecological Indicators, Journal Year: 2024, Volume and Issue: 169, P. 112812 - 112812

Published: Nov. 9, 2024

Language: Английский

Citations

8
Comparative profiling of microbial communities and volatile organic compounds in fermented wrapper, binder, and filler cigar tobaccos DOI Creative Commons
Mingzhu Zhang,

Dongfeng Guo,

Haiqing Wang

et al.

Chemical and Biological Technologies in Agriculture, Journal Year: 2024, Volume and Issue: 11(1)

Published: May 8, 2024

Abstract Background Economic benefits for tobacco growers are closely linked to the quality of fermented cigar leaves (CTLs). This research focused on an in-depth examination microbial community and flavor compounds within CTLs, specifically analyzing wrapper, binder, filler components a cigar. The primary objective was unravel complex relationship between composition resultant profiles, thereby providing insights that could enhance economic value CTLs. Results study revealed distinct variations in chemicals microbiota across different sections Prominent species identified CTLs included Corynebacterium , Pseudomonas Staphylococcus Aspergillus Cladosporium . Bidirectional orthogonal partial least squares (O2PLS) analysis pinpointed five bacterial four fungal as key contributors compound formation. Additionally, considering Within-module Among-module connectivity highlighted two thirteen genera keystone species. from Partial Least Squares Structural Equation Modeling (PLS-SEM) further underscored influential role microorganisms defining CTLs' profile. Conclusions findings illuminate intricate interplay microbes traditional fermentation process Graphical

Language: Английский

Citations

7
Analysis of surface water area dynamics and driving forces in the Bosten Lake basin based on GEE and SEM for the period 2000 to 2021 DOI
Xingyou Li, Zhang Fei,

Jingchao Shi

et al.

Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: 31(6), P. 9333 - 9346

Published: Jan. 8, 2024

Language: Английский

Citations

6
Riverine wetland dynamics and health assessment: A case study in the urban agglomerations along the Yellow River in China’s Ningxia Hui Autonomous Region DOI Creative Commons

Zuqiao Gao,

Changbin Li,

Songbing Zou

et al.

Ecological Indicators, Journal Year: 2024, Volume and Issue: 162, P. 111965 - 111965

Published: April 12, 2024

Riverine wetland is one of the important cityscapes along rivers, featuring powerful eco-hydrological regulations in safeguarding urban security and serving its quality. Over past several decades, intensified climate change, together with upgraded human activities, have deeply disturbed riverine worldwide caused variations amount pattern, which might lead to negative effects on ecosystem health (WEH), thus threaten sustainability agglomerations. To better understand mechanism above effectiveness, Urban Agglomerations Yellow River China's Ningxia Hui Autonomous Region (RUAN) was taken as an example present study. First, by establishing object-oriented remote sensing image classification system based Classification Regression Tree (CART), distribution years 2000, 2009 2018 were determined for a two-Stage (ST-I: 2000–2009, ST-II: 2009–2018) comparative research. Second, transition matrix landscape index used measure spatiotemporal dynamics two stages. Third, Pressure-State-Response (P-S-R) model, system, constructed comprehensively assess WEH there. Results revealed that: (1) Wetlands RUAN are dominated artificial ones, presenting overall increase area during statistical period, varying different trends Conversion between wetlands non-wetlands found frequent urbanization, leading remarkable changes patterns space. (2) Rivers basic forming RUAN, natural increased period. In general, patches diversity increased, shapes that became homogenized. Accordingly, aggregation decreased fragmentation worsened. (3) most experienced external pressure deterioration state, showing degradation. Meanwhile, more fundamental state itself, disturbance seemed function less. Above findings confirmed vulnerability urbanization arid circumstance. It worthy strengthening protection existing minimizing or eliminating conversion, ensure serve

Language: Английский

Citations

6