Regional Carbon Storage Dynamics Driven by Tea Plantation Expansion: Insights from Meitan County, China

Land, Journal Year: 2025, Volume and Issue: 14(2), P. 227 - 227

Published: Jan. 22, 2025

Over the past two decades, tea plantation area in Meitan County, China, has expanded nearly 30-fold, driving significant land use and cover changes (LUCC) with unclear impacts on regional carbon storage. This study uses PLUS-InVEST model to analyze LUCC storage from 2000 2020 predict future by 2060. Results show a decline total 3977.83 × 104 t 3960.85 2020, primarily due reductions cultivated grassland. Although forest plantations increased, overall trend remained negative. Multi-scenario simulations indicate that sustainable development scenario (SDS) mitigates loss, decrease of 31.53 t, compared larger natural (NDS) economic (EDS) scenarios. Under SDS scenario, grassland increased while construction expansion was controlled. emphasizes optimizing agricultural management enhance sequestration protect ecosystems, highlighting need for balance between ecological protection County.

Language: Английский

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Spatiotemporal dynamics and driving factors of county-level carbon storage in the Loess Plateau: A case study in Qingcheng County, China

Ecological Indicators, Journal Year: 2022, Volume and Issue: 144, P. 109460 - 109460

Published: Sept. 20, 2022

There are more than 2,800 counties in China, including 341 the Loess Plateau region. The county is basic unit of administrative management and considered to be best scale for land use control, environmental planning policy implementation. Since 1990 s, socioeconomic development implementation ecological engineering have greatly changed cover (LULC) patterns counties, presumably county’s carbon. However, accurate assessment carbon storage driving factors remains a challenge. This paper selected Qingcheng County, typical Plateau, used multi-source data comprehensive modeling methods evaluate analyze temporal spatial trends County from 2000 2030. results showed that: (1) terrestrial ecosystem increased 2030 Qingcheng, it was mainly distributed grassland forest, accounting 49 %–53 % 36 %–40 total storage, respectively. (2) had obvious promotion effect on ecosystem. precipitation temperature past 20 years provided favorable climatic conditions engineering. In addition, also affected by economic development, input intensity, population size. These findings provide recommendations achieving sustainable at county-level. study contributes deeper understanding relationship between LULC caused natural environment factors.

Language: Английский

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Assessing the impact of land use and changes in land cover related to carbon storage by linking trajectory analysis and InVEST models in the Nandu River Basin on Hainan Island in China

Frontiers in Environmental Science, Journal Year: 2022, Volume and Issue: 10

Published: Oct. 3, 2022

This study aims to evaluate the effects of spatiotemporal patterns land-use and land-cover (LULC) changes on dynamics carbon storage in a tropical region China by linking trajectory analysis LULC InVEST model. Based remote sensing (RS), geographic information system (GIS) change trajectories, evolution was explored. could be coupled with trajectories model for quantitative spatial distribution temporal variation regional stocks. The results showed that during 2000–2020 period, built-up land continually increased 206.05 km 2 through urban expansion, forestland became dominant type land, an area 357.39 . In addition use, 4.87 Tg C. anaphasic had largest ratio at 7.05% total area, while prophasic contributed increase storage, 5.87 Moreover, repetitive no impact sinks sources, whereas continual imposed passive impacts storage. These advances research underpin scientific efforts improve understanding relationship between optimization structure service Nandu River Basin.

Language: Английский

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Spatio-temporal evolution and driving factors of carbon storage in the Western Sichuan Plateau

Scientific Reports, Journal Year: 2022, Volume and Issue: 12(1)

Published: May 17, 2022

Abstract The carbon sequestration function of the ecosystem is one most important functions service, and it great significance to study spatio-temporal differentiation storage for promoting regional sustainable development. Ecosystems on Western Sichuan Plateau are highly variable, but its driving factors not yet clear. In this study, basis land use monitoring data, meteorological demographic data interpreted from Landsat remote sensing image, through GIS analysis tools, module InVEST (Integrated Valuation Ecosystem Services Trade-offs) model was used estimate geodetector detect spatial differentiation. results show that: (1) increased 1.2455 × 10 t 1.2438 in past 20 years, developed a healthy way overall. (2) Carbon High-High Low-Low aggregation characteristics, area decreased by 1481.81 km 2 311.11 respectively, cluster effect gradually weakened. (3) HAI leading factor causing storage, followed temperature NDVI; interaction between significantly enhances indicating that change result joint action natural socioeconomic factors. provide some theoretical development differentiated ecological regulation models strategies, help promote high-quality

Language: Английский

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Contribution of soil aggregate particle size to organic carbon and the effect of land use on its distribution in a typical small watershed on Loess Plateau, China

Ecological Indicators, Journal Year: 2023, Volume and Issue: 155, P. 110988 - 110988

Published: Sept. 26, 2023

Soil organic carbon (SOC) is an important pool in the global cycle, playing a vital role moderating atmospheric CO2 concentrations. largest terrestrial ecosystems and, as basic unit of soil structure, aggregates are key to protecting pools. However, influence aggregate particle size, SOC distribution, and contribution different sizes still unclear, particularly under land use types. In this study, samples were collected from five types (slope farmland (SF), forest (FL), grassland (GL), shrubland (SL), terraced field (TF)) typical small watershed Loess Plateau, China. We analyzed composition, stability after dry wet sieving, content aggregates, effects on distribution SOC. The results showed that, surface (0 ∼ 20 cm) water-stable relatively stable, FL, mean weight diameter (MWD) value was 2.16 mm. Deep (40 60 non-water stable more GL optimal, MWD 3.94 total nitrogen (TN) significantly correlated with indicators (p < 0.01). (0.25 2 mm) highest lowest microaggregates (<0.25 use. carbon/nitrogen (C/N) ratio higher SF (the C/N 23.17) 31.04) than other uses 0.01) 20–40 cm layer. soil, contributed>50% TF. deep all made rate at 57%. These findings indicate that sequestration study area can be improved by combination appropriate management ecological construction increase strengthen fixation protection SOC, reduce emissions soil.

Language: Английский

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The interactions among landscape pattern, climate change, and ecosystem services: progress and prospects

Regional Environmental Change, Journal Year: 2023, Volume and Issue: 23(2)

Published: May 2, 2023

Language: Английский

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Spatial heterogeneity and driving mechanisms of carbon storage in the urban agglomeration within complex terrain: Multi-scale analyses under localized SSP-RCP narratives

Sustainable Cities and Society, Journal Year: 2024, Volume and Issue: 109, P. 105520 - 105520

Published: May 23, 2024

Language: Английский

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The study on the spatiotemporal changes in tradeoffs and synergies of ecosystem services and response to land use/land cover changes in the region around Taihu Lake

Heliyon, Journal Year: 2024, Volume and Issue: 10(13), P. e33375 - e33375

Published: June 21, 2024

Interactions among ecosystem services (ESs) involve tradeoffs and synergies. Quantitatively studying the trade-off synergistic relationships between land use/land cover change (LULC) ESs enables precise identification of quality status driving factors within region, which is crucial for rational resource allocation environmental protection. In this study, spatial temporal characteristics three carbon storage (CS), soil retention (SR) habitat (HQ) are explored by using InVEST model GIS technology in region around Taihu Lake, synergies determined based on difference comparison. The results indicate that: (1) study area has a downward trajectory CS HQ from 1990 to 2020, while SR experiences some fluctuations. distribution exhibits high levels southwest low northeast. (2) most sensitive regions where pronounced occur primarily newly construction southwestern mountainous hilly areas. regions, there often observed SR, as well SR. Conversely, predominantly negative synergy mainly HQ. terrain, due changes landscape patterns, exhibit higher relationships. (3) LULC significant driver ESs, area, necessitating integrated research economic, social climate perspectives.

Language: Английский

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Effectiveness of nature reserves in China: Human footprint and ecosystem services perspective

Applied Geography, Journal Year: 2024, Volume and Issue: 171, P. 103359 - 103359

Published: Aug. 13, 2024

Language: Английский

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Impacts of Land-Use Change on the Spatio-Temporal Patterns of Terrestrial Ecosystem Carbon Storage in the Gansu Province, Northwest China

Remote Sensing, Journal Year: 2022, Volume and Issue: 14(13), P. 3164 - 3164

Published: July 1, 2022

Land-use change is supposed to exert significant effects on the spatio-temporal patterns of ecosystem carbon storage in arid regions, while relative size land-use effect under future environmental conditions still less quantified. In this study, we combined a dataset with satellite-based high-resolution biomass and soil organic determine role affecting from 1980 2050 Gansu province China, using MCE-CA-Markov InVEST models. addition, quantify comparison other drivers, also considered climate change, CO2 enrichment, cropland forest managements The results show that increased by 208.9 ± 99.85 Tg C 2020, 12.87% which was caused rest managements. change-induced sequestration mainly associated category conversion farmland grassland as well saline land desert farmland, driven grain-for-green projects Loess Plateau oasis cultivation Hexi Corridor. Furthermore, it projected 2020 will −14.69 12.28 57.83 53.42 (from 105.62 51.83 177.03 94.1 C) for natural development (ecological protection) scenario. By contrast, individually increase 56.46 9.82 (165.84 40.06 scenario, respectively. Our highlight importance ecological protection restoration enhancing especially conditions.

Language: Английский

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