Soil Organic Carbon May Decline Under Climate Change: A Case Study in Mexican Forests DOI Creative Commons
Leticia Citlaly López-Teloxa, Alejandro Ismael Monterroso-Rivas

Land, Journal Year: 2024, Volume and Issue: 13(10), P. 1711 - 1711

Published: Oct. 18, 2024

Soil organic carbon is essential for ecosystem health, influencing water retention, soil fertility and biodiversity. However, climate change deforestation are reducing SOC globally. This study models projects changes in the of Mexican forest soils under different scenarios. Over 100 were developed relating to Lang index (precipitation temperature), altitude, slope, bulk density, texture depth. The results indicate that can be effectively modelled assess scenarios decision making. highest levels found tropical rainforests mesophyll forests lowest broadleaved Sonoran plain. Climate projected reduce ecosystems by up 11%, especially temperate forests. Conversely, expected experience a slight increase 3% due rising temperatures changing precipitation patterns. decline could lead increased HGH reduced storage capacity. highlights need sustainable management practices multidisciplinary research mitigate these impacts emphasises importance comprehensive strategies long-term environmental sustainability.

Language: Английский

Changing Dynamic of Tree Species Composition and Diversity: A Case Study of Secondary Forests in Northern China in Response to Climate Change DOI Open Access
Beichen Liu, Chengrui Liao, Chang YouHong

et al.

Forests, Journal Year: 2024, Volume and Issue: 15(2), P. 322 - 322

Published: Feb. 8, 2024

Climate warming is believed to have irreversible effects on biodiversity and ecosystem functions. Secondary forests are non-negligible ecosystems in northern China that attracted much attention because of their instability sensitivity global change. However, there no consensus the impact secondary forest succession. In this study, we explored response tree species diversity climate using a series field surveys combined with annual meteorological data from 2015 2021. Our results indicate temperature study area increased spring autumn, while precipitation spring, summer, autumn Changes composition were significant region China. The importance values many broadleaf increased, whereas those local coniferous decreased. Shannon–Wiener, Simpson, Margalef indices for pure significantly lower than mixed conifer–broadleaf (p < 0.05) highest value Pielou index was 0.05), it not different between Surprisingly, showed an unfavorable degradation trend under influence change, just same as forest. work provides experimental source research various change scenarios important reference predicting dealing adaptive management protection ecosystems.

Language: Английский

Citations

2
Effects of Simulated Acid Rain on Photosynthesis in Pinus massoniana and Cunninghamia lanceolata in Terms of Prompt Fluorescence, Delayed Fluorescence, and Modulated Reflection at 820 nm DOI Creative Commons

Pengzhou Shu,

Xiaofei Gong,

Yan‐Lei Du

et al.

Plants, Journal Year: 2024, Volume and Issue: 13(5), P. 622 - 622

Published: Feb. 24, 2024

The effects of simulated acid rain (SAR) on the photosynthetic performance subtropical coniferous species have not been thoroughly investigated. In this study, we treated two species, Pinus massoniana (PM) and Cunninghamia lanceolata (CL), with four gradients SAR then analyzed their activities through measurements gas exchange, prompt fluorescence (PF), delayed (DF), modulated reflection at 820 nm (MR820). Gas exchange analysis indicated that decrease in net rate (Pn) PM CL was unrelated to stomatal factors. For PF transients, induced positive K-band L-band, a significant reduction index (PIABS), quantum yield electron transfer per unit cross-section (ETO/CSm), maximal photochemical efficiency photosystem II (Fv/Fm). Analysis MR820 kinetics showed re-reduction PSI reaction center (P700+) plastocyanin (PC+) became slower occurred later times under treatment. DF signals, amplitude induction curve reduced maximum value (I1). These results suggested obstructed (PSII) donor-side acceptor-side capacity, impaired connectivity between PSII PSI, destroyed oxygen-evolving complex (OEC). However, better able withstand stress than CL, likely because activation protective mechanism.

Language: Английский

Citations

2
Timber-timber composite (TTC) joints made of short-supply chain beech: Push-out tests of inclined screw connectors DOI Creative Commons
Martina Sciomenta,

Pasqualino Gualtieri,

Luca Spera

et al.

Materials and Structures, Journal Year: 2024, Volume and Issue: 57(7)

Published: Aug. 22, 2024

Abstract This paper presents the results of experimental investigations on six-layered, homogeneous glulam beams made Italian short supply chain beech ( Fagus sylvatica L.) . At first, were produced and mechanically characterized for bending, then, they employed to realize timber-timber composite joints tested under quasi-static monotonic loading. The test configurations adopted reproduce connections used in timber-to-timber structures applications new constructions. Outcomes terms connection stiffness, strength, static ductility failure modes are presented discussed. Moreover, stiffness carry out analytical verification at serviceability ultimate limit states extend validity proposed screw specimen’s configurations.

Language: Английский

Citations

2
Changes in soil inorganic carbon following vegetation restoration in the cropland on the Loess Plateau in China: A meta-analysis DOI
Zhenyu Zhao,

Keyu Ren,

Yang Gao

et al.

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 372, P. 123412 - 123412

Published: Nov. 21, 2024

Language: Английский

Citations

2
Modeling Shallow Landslide Runout Distance in Eocene Flysch Facies Using Empirical–Statistical Models (Western Black Sea Region of Türkiye) DOI Creative Commons
Müge Pınar Kömü, Hakan A. Nefeslioğlu, Candan Gökçeoğlu

et al.

ISPRS International Journal of Geo-Information, Journal Year: 2024, Volume and Issue: 13(3), P. 84 - 84

Published: March 8, 2024

Uncertainties related to runout distances in shallow landslide analyses may not only affect lives but also result economic losses. Owing the increase landslides, which are especially triggered by heavy rainfall, have been investigated decipher whether applications of a functional distance feasible. This paper aims give insights into modeling probability Eocene flysch facies Western Black Sea region Türkiye. There two main stages this study—which dominated empirical models, detection initiation points, and propagation—which help us understand visualize possible study area. Shallow point determination using machine learning has critical role ordered tasks study. Modified Holmgren simplified friction-limited model (SFLM) parameters were applied provide good approximation during propagation stage Flow-R software. The suggested for debris flows landslides comparatively. models had approximately same performance depending on flow parameters. While impacted total areas predicted amount 146 km2, estimated be about 101 km2. Considering inclusion RCP 4.5 8.5 precipitation scenarios analyses, shows that impact will decrease. investigation highly intriguing researchers.

Language: Английский

Citations

1
Paleosol charcoal: 12,700 years of high-altitude mediterranean vegetation history in relation to forest fires in the southwestern baetic cordillera (Spain) DOI Creative Commons
Rubén Pardo-Martínez, Mario Menjíbar-Romero, José Gómez Zotano

et al.

Quaternary International, Journal Year: 2024, Volume and Issue: 702, P. 1 - 12

Published: June 8, 2024

Mountain forests are sensitive ecosystems. This is why in recent years the dynamics of these forest ecotones have been researched from several different approaches. One has paleoecological perspective, which particularly interesting mountainous areas Mediterranean region, where interactions between climate, vegetation and anthropic activities documented for millennia. case Sierra de las Nieves Natural Park (southwestern Baetic Cordillera), a area that constitutes an important refuge flora southern Iberian Peninsula. At present, endemic trees such as Abies pinsapo Quercus faginea subs. alpestris found. However, its strategic geographical location may also served past other tree taxa. In order to reconstruct history this protected natural area, research aims use pedoanthracological analysis unexplored system. The results obtained allowed identify new paleopopulation Abies, finding provides keys on paleobiogeography species. oldest evidence genus at highest altitude those found date southwestern Cordillera, would confirm fir was present high elevations during Pleistocene-Holocene transition. Likewise, first anthracological Pinus nigra/sylvestris type end Cordillera obtained. Forest fires could one main factors be determined shaping evolution landscape, suggested by fire events identified soil analysis. information can useful conservation adaptive management most threatened their habitats face global change.

Language: Английский

Citations

1
Forest Structure Regulates Response of Erosion-Induced Carbon Loss to Rainfall Characteristics DOI Open Access
Weiwei Wang, Chao Xu, Teng‐Chiu Lin

et al.

Forests, Journal Year: 2024, Volume and Issue: 15(7), P. 1269 - 1269

Published: July 21, 2024

Forestation is a common measure to control erosion-induced soil and carbon (C) loss, but the effect can vary substantially between different types of forest. Here, we measured event-based runoff, soil, dissolved organic (DOC), particulate (POC) total C loss with runoff plots (20 m × 5 m) in broad-leaved coniferous forest subtropical China explored their relationships rainfall amount, average intensity, maximum 5-min intensity erosivity. The had denser canopy sparse understory vegetation while relatively open dense vegetation. results showed that DOC, POC losses were all significantly higher than despite potentially interception associated greater leaf area index mean was 3.03 ± 0.20 m3 ha−1 event−1 (mean standard error) 12.49 0.18 (kg event−1) 1.12 0.16, 0.045 0.003, 0.118 0.016 0.163 0.017, respectively, 0.66 0.09, 0.020 0.002, 0.060 0.009 0.081 0.010, Runoff DOC driven by two forests, key characteristic driving from due patterns. Soil, mostly amount EI30 conifer Our findings highlight response characteristics differs same age contrasting overstory covers. Moreover, our study underscores overlooked significance regulating these effects. Thus, call for inclusion modeling erosion ecosystems.

Language: Английский

Citations

0
Linking Land Use and Land Cover Changes and Ecosystem Services’ Potential in Natura 2000 Site “Nordul Gorjului de Vest” (Southwest Romania) DOI Creative Commons
Simona Mariana Popescu, Oana Mititelu‐Ionuș,

Dragoş Mihail Ştefănescu

et al.

Land, Journal Year: 2024, Volume and Issue: 13(5), P. 650 - 650

Published: May 10, 2024

Considering that land use and cover (LULC) change is one of the most important challenges to biodiversity today, we used Copernicus products analyze LULC changes at level “Nordul Gorjului de Vest” Natura 2000 site (Romania) from 1990 2018. The interpretation impact these on areas with very high potential for three regulating ecosystem services (ESs) (local climate regulation, regulation waste, water purification) was performed. Forest habitats are major class category in site, broad-leaved forest as dominant class. In terms lost or gained by different classes each analyzed time interval, transformations took place period 2000–2006, which were also reflected overall study (1990–2018). During this frame, conversion transitional shrubs into forest, second largest transition absolute area changed, led, contribution rates, an increase two ESs. woodland shrub conductive only synergy all pairwise interactions between

Language: Английский

Citations

0
Soil Organic Carbon May Decline Under Climate Change: A Case Study in Mexican Forests DOI Creative Commons
Leticia Citlaly López-Teloxa, Alejandro Ismael Monterroso-Rivas

Land, Journal Year: 2024, Volume and Issue: 13(10), P. 1711 - 1711

Published: Oct. 18, 2024

Soil organic carbon is essential for ecosystem health, influencing water retention, soil fertility and biodiversity. However, climate change deforestation are reducing SOC globally. This study models projects changes in the of Mexican forest soils under different scenarios. Over 100 were developed relating to Lang index (precipitation temperature), altitude, slope, bulk density, texture depth. The results indicate that can be effectively modelled assess scenarios decision making. highest levels found tropical rainforests mesophyll forests lowest broadleaved Sonoran plain. Climate projected reduce ecosystems by up 11%, especially temperate forests. Conversely, expected experience a slight increase 3% due rising temperatures changing precipitation patterns. decline could lead increased HGH reduced storage capacity. highlights need sustainable management practices multidisciplinary research mitigate these impacts emphasises importance comprehensive strategies long-term environmental sustainability.

Language: Английский

Citations

0