Elevation, Soil and Environmental Factors Determine the Spatial and Quantitative Distribution of Qinghai Spruce Recruitment Biomass in Mountainous (Alpine) Watersheds DOI Open Access

Jinxain Liu,

Aristeidis Kastridis,

Erwen Xu

et al.

Forests, Journal Year: 2024, Volume and Issue: 15(11), P. 1839 - 1839

Published: Oct. 22, 2024

Soil heterogeneity observed in the alpine environment plays a very important role growth of forest recruitment. However, mechanisms by which biomass accumulation and allocation patterns recruitment respond to such environmental differences are unclear, hinders thorough understanding climate change’s impact on biomass. We hypothesized that soil influences distribution Qinghai spruce along with elevation. In frame this study, carried out northern Tibetan Plateau, data were combined derived from 24 sample plots, while permutation multifactor ANOVA multiple linear regression utilized reveal characteristics recruits’ above- below-ground their response heterogeneity. According results, mainly affected at different elevations, root–shoot ratio variability was influenced combination other factors. organic carbon (SOC) had greatest effect recruits, R2 0.280 0.257, respectively. moisture content (SMC) significant ratio, 0.168 0.165, total nitrogen (TN) main influencing factors above-ground contribution rates 43.15% 35.28%, also 42.52% 37.24%, respectively, both them positive accumulation, magnitude influence varied elevation gradient. factor rate 54.12%. Decreasing would significantly increase recruits promote plants allocate more root growth. Changes not only intensity its pattern but even led change negative effects.

Language: Английский

Effectiveness of Torrential Erosion Control Structures (Check Dams) Under Post-Fire Conditions—The Importance of Immediate Construction DOI Creative Commons

Alexandros Theofanidis,

Aristeidis Kastridis,

Marios Sapountzis

et al.

Land, Journal Year: 2025, Volume and Issue: 14(3), P. 629 - 629

Published: March 16, 2025

This study examines the effectiveness of torrential erosion control structures (concrete check dams) to mitigate post-fire sediment transport within Seich Sou Forest in Thessaloniki, Greece. Four years after fire 1997, which burned 68% forest, dams were constructed (in 2001) and catchments Eleonas Panteleimon. In 2022, our team conducted field surveys, size, effective storage capacity, siltation 40 recorded. The results revealed that stored 14.36% 18.81% their total capacity Panteleimon catchments, respectively, with average annual levels 0.33 t/ha/year 0.21 t/ha/year. These low rates could be attributed shallow, rocky soils rapid vegetation recovery. However, this highlights timely construction immediately have significantly increased effectiveness. showed if fire, they would retain 6.17 (Eleonas) 7.08 (Panteleimon), during first three years. values are agreement previously published studies Mediterranean ecosystems. highlighted importance increase reduce soil transportation.

Language: Английский

Citations

1
Effects of Repeated Low‐Severity Fires on Particle Detachment Capacity and Soil Properties in Rills of Semi‐Arid Forests DOI Open Access
Misagh Parhizkar, Manuel Esteban Lucas‐Borja, Pietro Denisi

et al.

Land Degradation and Development, Journal Year: 2025, Volume and Issue: unknown

Published: March 23, 2025

ABSTRACT In forest ecosystems, in addition to wildfire hazards, low‐severity fires may alter some soil properties and trigger erosion, especially on long steep slopes. The literature the hydrological effects of fire with variable intensity is ample, but studies post‐fire variability detachment capacity rills (hereafter D c ) are scarce. Moreover, repeated low severity particle have never been evaluated. To fill this gap, study has explored whether influence rill formation process by measuring samples collected semi‐arid forests Northern Iran flume experiments. Fires noticeably increased (up 45%) over five compared unburned sites. were always noticeable almost all those contrast, its significant impacts soils a different number limited bulk density, concentrations ions, cation exchange capacity. Therefore, suggests proper control recreational activities limit burning frequency. simple models set up estimate erodibility factor critical shear stress (important input parameters for process‐based erosion models) repeatedly burned soils. was accurately estimated from stream power or unit value using linear equations. provided more reliable predictions (coefficients efficiency Nash Sutcliffe 0.75) value. findings useful hydrologists land managers prediction conservation tasks, respectively, delicate ecosystems.

Language: Английский

Citations

0
Effectiveness of mulching after mechanised construction of firebreaks on the hydrological and erosive response of soil in a Mediterranean forest affected by a severe wildfire DOI

Asmae Amiri Ghanat Saman,

Manuel Esteban Lucas‐Borja, Rocío Soria

et al.

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 381, P. 125286 - 125286

Published: April 9, 2025

Language: Английский

Citations

0
Evaluating quality and price dynamics of wood pellets in the Portuguese market: Impacts of geopolitical and economic factors DOI
Rui Pinho, Miguel Oliveira,

Bruno M. M. Teixeira

et al.

Energy Strategy Reviews, Journal Year: 2025, Volume and Issue: 59, P. 101719 - 101719

Published: April 12, 2025

Language: Английский

Citations

0
The influence of hydrometeorological factors on tree growth in mountainous watersheds of the Qilian mountains in China DOI Creative Commons

Wenmao Jing,

Xiaofeng Ren, Aristeidis Kastridis

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: April 23, 2025

To examine the influence of hydrometeorological factors on forest ecosystems, this study focused growth response Qinghai spruce (Picea crassifolia Kom.) to factors, such as soil moisture, relative humidity, vapor pressure deficit, temperature, precipitation and wind speed, in a mountainous watershed. The Dayekou watershed, which is situated Qilian Mountains, was used increase stem diameter based daily-monthly fluctuations, cumulative growth, expansion parameters. diameters six dominant trees (categorized three classes) were recorded using Dendrometer DRL26 tree monitor combined with monitoring data. statistically analyzed. results indicated that daily fluctuation exhibited parabolic pattern, could be divided into stages: contraction (from 10:00 21:00), expanding 21:00 5:00 following day), 11:00 day). monthly also trend, initial (May), rapid (June-July) slow (August-October). At 40 cm depth, water content, air atmospheric all showed positive correlations (P < 0.01), while saturated differential, photosynthetically active radiation negative 0.01). Our demonstrated at depth had highest impact spruce's diameter. Changes these due potential climate change will affect future.

Language: Английский

Citations

0
The Effect of Hydrometeorological Factors on Tree Growth (Abies borisii-regis Mattf.) in Mountainous Watersheds (Central Greece) DOI Open Access
Aristeidis Kastridis, Dimitrios Koutsianitis, Dimitrios Stathis

et al.

Forests, Journal Year: 2025, Volume and Issue: 16(5), P. 750 - 750

Published: April 27, 2025

Tree ring chronologies (tree width—TRW, earlywood—EW, latewood—LW) were constructed to investigate fir’s (Abies borisii-regis Mattf.) response key hydrometeorological factors, namely precipitation, temperature and drought (12-month Standardized Precipitation Evapotranspiration Index, SPEI-12). There has been only one previously published study conducted in the northern area of species’ expansion (Albania). The current was southern (Central Greece). most important factor that affected tree growth. May precipitation positively correlated with LW, while June July both EW LW. Previous September Interestingly, negatively EW. High temperatures April showed a positive relation high all chronologies, August related autumn previous year significantly (negatively) influenced chronologies. SPEI index revealed wet conditions during growth for affect LW formation. Wet also had effect on similar behavior showing is driving fir results highlight importance summer rainfall controlling Mediterranean regions. significant knowledge susceptibility Abies Mattf. climate variability highlighted its consequences future forest management plans.

Language: Английский

Citations

0
Elevation, Soil and Environmental Factors Determine the Spatial and Quantitative Distribution of Qinghai Spruce Recruitment Biomass in Mountainous (Alpine) Watersheds DOI Open Access

Jinxain Liu,

Aristeidis Kastridis,

Erwen Xu

et al.

Forests, Journal Year: 2024, Volume and Issue: 15(11), P. 1839 - 1839

Published: Oct. 22, 2024

Soil heterogeneity observed in the alpine environment plays a very important role growth of forest recruitment. However, mechanisms by which biomass accumulation and allocation patterns recruitment respond to such environmental differences are unclear, hinders thorough understanding climate change’s impact on biomass. We hypothesized that soil influences distribution Qinghai spruce along with elevation. In frame this study, carried out northern Tibetan Plateau, data were combined derived from 24 sample plots, while permutation multifactor ANOVA multiple linear regression utilized reveal characteristics recruits’ above- below-ground their response heterogeneity. According results, mainly affected at different elevations, root–shoot ratio variability was influenced combination other factors. organic carbon (SOC) had greatest effect recruits, R2 0.280 0.257, respectively. moisture content (SMC) significant ratio, 0.168 0.165, total nitrogen (TN) main influencing factors above-ground contribution rates 43.15% 35.28%, also 42.52% 37.24%, respectively, both them positive accumulation, magnitude influence varied elevation gradient. factor rate 54.12%. Decreasing would significantly increase recruits promote plants allocate more root growth. Changes not only intensity its pattern but even led change negative effects.

Language: Английский

Citations

0