Spatiotemporal Variation of Small and Micro Wetlands and Their Multiple Responses to Driving Factors in the high-latitude Region DOI
Yingbin Wang, Jiaxin Sun, Yao Wu

et al.

Wetlands, Journal Year: 2024, Volume and Issue: 44(8)

Published: Dec. 1, 2024

Language: Английский

Anthropogenic Activities Drive the Spatiotemporal Changes of Wetland Area in Tianjin, China DOI
Bin Wang, Wei Zhang, Lili Zhang

et al.

Environmental Management, Journal Year: 2025, Volume and Issue: unknown

Published: May 15, 2025

Language: Английский

Citations

0

An Improved Method for Estimating Blue Carbon Storage in Coastal Salt Marsh Wetlands: Considering the Heterogeneity of Soil Thickness DOI Creative Commons
Lina Ke,

Chengkai Yin,

Nan Lei

et al.

Land, Journal Year: 2025, Volume and Issue: 14(4), P. 776 - 776

Published: April 4, 2025

Coastal wetlands are vital ecosystems at the land–sea interface. They intercept land-based pollutants, regulate microclimates, and mediate carbon cycles. play a significant role in enhancing sequestration capacity maintaining ecological structure functioning. This study proposes an improved method for estimating blue storage coastal salt marsh wetlands, considering soil thickness, by utilizing enhanced Soil Land Inference Model (SoLIM) to estimate thickness with restricted number of sample points. The wetland index is integrated into Integrated Valuation Ecosystem Services Trade-offs (InVEST) estimation model, ultimately enabling visualization Liaohe Estuary wetland. Results indicate following: (1) studied area’s shows spatial distribution pattern that becomes progressively thinner from north south. more vegetation areas minor tidal flat areas, 52% region having between 40 60 cm. (2) In 2023, stock area estimated 389.85 × 106 t, high-value concentrated northern natural landscapes, low-value southern zone, characterized terrain human influence. coupled thickness–blue model provides methodological support refining wetlands. It also offers technical formulating policies on restoration, compensation, protection, management

Language: Английский

Citations

0

Ecosystem services of lake-wetlands exhibit significant spatiotemporal heterogeneity and scale effects in a multi-lake megacity DOI Creative Commons
Jiaoyang Xu,

Yixue Wang,

Mingjun Teng

et al.

Ecological Indicators, Journal Year: 2023, Volume and Issue: 154, P. 110843 - 110843

Published: Aug. 31, 2023

Climate change and anthropogenic disturbances are altering global lake-wetlands (LWs) their ecosystem services (ESs), posing a threat to sustainable development. Understanding the spatiotemporal heterogeneity scale effects of LWESs has risen be critical concern in management wetlands. Although large lakes or at macro-region well documented, complexity urbanizing areas remains further addressed. Here we aim reveal under coinciding wetland conservation urbanization through study Wuhan, multi-lake city central China. The variations from 1999 2019 were characterized by nine indicators based on time-series remote-sensing images statistical data. A V-shaped trend was observed area LWs over time, which decreasing 8.12% 1999–2010 while recovering 9.57% 2010–2019. LW loss main urban (MA) mainly encroached construction lands, restoration croplands rural (RA) completely offsets LWs. We found that rates most more severely degraded along rural–urban gradient, except for cultural services. Specifically, water supply (-57.39%), flood regulation (-34.19%), climate (-31.36%), biodiversity (-62.13%) damaged MA. However, carbon sink RA suffer severe degradation. Not only with but also showed obvious effects. larger LWs, higher ES capacity tends be. Smaller heavily encroached, worst capacities. These results highlight should no longer homogeneous, combine spatial heterogeneity. Due land resource constraints, those close center improve regulating supporting service capacities, away, improvements can pursued balance demand growth. Further, it is important conserve existing small over-encroachment.

Language: Английский

Citations

8

Spatiotemporal Dynamics and Driving Factors of Small and Micro Wetlands in the Yellow River Basin from 1990 to 2020 DOI Creative Commons
Guangqing Zhai, Jiaqiang Du, Lijuan Li

et al.

Remote Sensing, Journal Year: 2024, Volume and Issue: 16(3), P. 567 - 567

Published: Feb. 1, 2024

Comprehending the spatiotemporal dynamics and driving factors of small micro wetlands (SMWs) holds paramount significance in their conservation sustainable development. This paper investigated evolution mechanisms SMWs Yellow River Basin, utilizing buffer zones, overlay analysis, Geodetector model based on Landsat satellite images an open-surface water body dataset from 1990 to 2020. The results revealed that (1) 2020, Basin exhibited overall pattern fluctuation reduction. total area decreased by approximately 1.12 × 105 hm2, with predominant decline occurring 0–1 hm2 1–3 size categories. In terms spatial distribution, Qinghai Gansu significantly, while Inner Mongolia, Henan, Shandong gradually increased. (2) From were mostly converted into grassland cropland, some transformed impervious surface barren, only a percentage other land types basin. (3) alterations influenced factors, interplay exhibiting nonlinear or bilinear enhancement. Among these annual precipitation, elevation, potential evapotranspiration primary natural influencing changes distribution SMWs. On hand, use cover type, gross domestic product (GDP), road distance main anthropogenic factors.

Language: Английский

Citations

2

A novel spatiotemporal urban land change simulation model: Coupling transformer encoder, convolutional neural network, and cellular automata DOI

Haiyang Li,

Zhao Liu, Xu Lin

et al.

Journal of Geographical Sciences, Journal Year: 2024, Volume and Issue: 34(11), P. 2263 - 2287

Published: Nov. 1, 2024

Language: Английский

Citations

2

Multi-source remote sensing data and image fusion technology reveal significant spatiotemporal heterogeneity of inundation dynamics in a typical large floodplain lake system DOI Creative Commons
Xuchun Ye, Juan Wu, Xianghu Li

et al.

Journal of Hydrology Regional Studies, Journal Year: 2023, Volume and Issue: 50, P. 101541 - 101541

Published: Oct. 5, 2023

The Poyang Lake, which is located on the south bank of middle-lower Yangtze River basin. lake largest freshwater in China, and also a typical floodplain world. spatiotemporal heterogeneity inundation dynamics large system has not been paid enough attention. Based reconstructed high spatial temporal resolution dataset using image fusion model multi-source remote sensing data, this study systematically analyzed Lake- system. It found that within same lake, inundated area frequency different regions (the main region adjacent region) can have asynchronous intra-annual fluctuation opposite inter-annual change trend. This highly related to hydrological complexity lake: relative impacts catchment inflow varies across lake. stage-area relationship at central station along flow direction highest linear correlation, might provide more accurate estimates surface/volume. In addition, highlights importance spatial-temporal data for assessment lakes. All results enrich understanding complex regime lakes are valuable practice water resources management ecological conservation such

Language: Английский

Citations

5

Wetlands Mapping and Monitoring with Long-Term Time Series Satellite Data Based on Google Earth Engine, Random Forest, and Feature Optimization: A Case Study in Gansu Province, China DOI Creative Commons
Jian Zhang, Xiaoqian Liu, Yao Qin

et al.

Land, Journal Year: 2024, Volume and Issue: 13(9), P. 1527 - 1527

Published: Sept. 20, 2024

Given global climate change and rapid land cover changes due to human activities, accurately identifying, extracting, monitoring the long-term evolution of wetland resources is profoundly significant, particularly in areas with fragile ecological conditions. Gansu Province, located northwest China, contains all types except coastal wetlands. The complexity its has resulted a lack accurate comprehensive information on changes. Using Province as case study, we employed GEE platform Landsat time-series satellite data, combining high-quality sample datasets feature-optimized multi-source feature sets. random forest algorithm was utilized create classification maps for across eight periods from 1987 2020 at 30 m resolution quantify area type. results showed that mapping method achieved robust results, an average overall accuracy (OA) 96.0% kappa coefficient 0.954 years. marsh type exhibited highest user (UA) producer (PA), 96.4% 95.2%, respectively. Multi-source aggregation optimization effectively improve accuracy. Topographic seasonal features were identified most important extraction, while textural least important. By 2020, total 10,575.49 km2, decrease 4536.86 km2 compared 1987. marshes decreased most, primarily converting into grasslands forests. River, lake, constructed generally increasing trend fluctuations. This study provides technical support protection offers reference mapping, monitoring, sustainable development arid semi-arid regions.

Language: Английский

Citations

1

Dynamic Change Characteristics of Wetlands in Hefei and their Driving Factors Along the Urban–Rural Gradient DOI Creative Commons
Hui Zhang, Chuntao Li, Yichen Zhang

et al.

Wetlands, Journal Year: 2024, Volume and Issue: 44(7)

Published: Sept. 18, 2024

Language: Английский

Citations

1

Future Reductions in Suitable Habitat for Key Tree Species Result in Declining Boreal Forest Aboveground Biomass Carbon in China DOI Open Access
Bin Zhu, Zengxin Zhang, Rui Kong

et al.

Forests, Journal Year: 2023, Volume and Issue: 14(10), P. 2053 - 2053

Published: Oct. 13, 2023

China’s forest ecosystem plays a crucial role in carbon sequestration, serving as cornerstone journey toward achieving neutrality by 2060. Yet, previous research primarily emphasized climate change’s influence on neglecting tree species’ suitable area changes. This study combinates the Lund–Potsdam–Jena model (LPJ) and maximum entropy (MaxENT) to reveal coupling impacts of changes aboveground biomass (ABC) China. Key findings include following: (1) forests are distributed unevenly, with northeastern (temperate coniferous broad-leaved mixed forest, TCBMF), southwestern, southeastern regions (subtropical evergreen SEBF) primary hubs. Notably, ABC rates TCBMF exhibited worrisome decline, whereas those SEBF showed an increasing trend from 1993 2012 based satellite observation LPJ simulation. (2) Under different future scenarios, is projected decline steadily 2015 2060, SSP5-8.5 scenario recording greatest (−4.6 Mg/ha/10a). Conversely, expected increase under all scenarios (2015–2060), peaking at 1.3 Mg/ha/10a SSP5-8.5. (3) Changes highly attributed area. By for Larix gmelinii will significantly reduce peak 65.71 × 104 km2 SSP5-8.5, while Schima superba Gardner & Champ Camphora officinarum expand peaks 94.07 104.22 km2, respectively. The geographic detector’s results indicated that bi-variate nonlinear enhanced effects change. These would offer effective strategies neutrality.

Language: Английский

Citations

1

Dynamic change characteristics of wetlands in Hefei and their driving factors along the urban–rural gradient DOI Creative Commons
Hui Zhang, Chuntao Li, Yichen Zhang

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Feb. 7, 2024

Abstract Context Wetlands persistently diminish due to their own vulnerability, along with the combined impact of changes in ecological surroundings and interference from anthropogenic interventions. Comprehending driving mechanisms wetland is crucial for conservation. Objectives This research seeks analyze dynamic change characteristics wetlands Hefei. The objective establish a framework urban-rural gradient analysis, exploring interventions factors, as well interactions, on dynamics across different regions. Methods In this research, an was defined utilizing clustering indicator derived composition configuration land use. optimal parameters-based geographical detector (OPGD) performed quantitative statistical analysis forces behind under urban–rural gradients. Results results indicate that: (1) From 1990 2020, area exhibited ongoing diminishing tendency. (2) can be classified into four categories: urban, agricultural village, semi-ecological village. (3) factors vary types most significant influencing each type region during periods are cropland proportion, impervious surface, OC, silt, GDP. (4) Interactions among generally exhibit stronger explanatory power. Conclusions reveal that underlie information supports development more targeted restoration protection plans, contributing improved synergy between urban rural conservation efforts.

Language: Английский

Citations

0