Assessing the Impacts of Forest Conversion and Seasonal Dynamics on Soil Nutrient Heterogeneity of Termite Mounds

Published: Jan. 1, 2025

Termite mounds create nutrient hotspots, boosting soil heterogeneity and microhabitat complexity. However, the of termite across various forest types seasons remains inadequately explored. We tested effects (tropical natural rubber plantation) seasonal change (dry wet season) on around mounds. observed six in plantation eight forest. Soil samples were systematically collected from nests their adjacent areas at varying distances (0m, 0.5m, 1m, 1.5m, 2m, 3m, 4m, 5m). was significantly higher for exchangeable micronutrients including calcium, magnesium, manganese aluminum, whereas forest, macronutrients total carbon, nitrogen, phosphorus, nitrite nitrate showed heterogeneity. Some much compared to due possible accumulation base cations lower layers mound stablility acidification minimally impact caused by This underscores consistent unique influence heterogeneity, regardless variations. Understanding highlights critical role shaping distribution, maintaining biodiversity, enhancing ecosystem resilience, thus could be applicable improving ecological models guiding conservation strategies.

Language: Английский

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Short-Term Effects of Three Tree Species on Soil Physicochemical Properties and Microbial Communities During Land-Use Change from Farmland to Forests

Forests, Journal Year: 2025, Volume and Issue: 16(2), P. 362 - 362

Published: Feb. 17, 2025

In recent decades, much of China’s farmland has been transformed into forests due to the Conversion Farmland Forests and Grasses Project. While past research mainly examined soil nutrients water conservation, less attention given microbial communities. This study effects converting Pleioblastus amarus (PA), Populus deltoides (PD), or Zanthoxylum bungeanum (ZB) on physiochemical properties, enzymes, communities, using abandoned land (AL) as control, over a period five years. The results showed that PA increased organic carbon (SOC) content, although not significantly, while significantly boosting C:N C:P ratios urease activity compared AL. PD notably reduced amylase cellulase activities, well fungal Shannon index. Additionally, beta diversity both bacterial communities in stand was clearly distinct from AL other tree species. SOC total potassium significant correlations with Moreover, community changes ZB stands were driven by genera Steroidobacter, Roseisolibacter, Serendipita, negatively correlated ratios, activity. contrast, primarily influenced order Capnodiales, family Capnodiaceae, genus Chaetocapnodium, species Chaetocapnodium philippinense, which positively pH, Furthermore, “Metabolism” identified primary function, forest altered nutritional type Saprotroph Pathotroph–Saprotroph–Symbiotroph, particularly stand. These findings indicate forest, bamboo P. amarus, impacts trophic source this

Language: Английский

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Exposed Subsoil Under Recovery for 30 Years: Influence of Management Strategies on Soil Physical Attributes and Organic Matter

Soil Systems, Journal Year: 2025, Volume and Issue: 9(1), P. 17 - 17

Published: Feb. 19, 2025

This study aimed to evaluate the residual effect of different management practices on a subsoil that has been exposed since 1969, which under recovery for 30 years. The soil is an Oxisol, and its assessment was conducted in 2023 2024. experiment included nine treatments, with two controls, native vegetation soil, while remaining treatments combined green manures (velvet bean, pigeon pea replaced by jack bean), liming, liming + gypsum application from 1992 1997. Starting 1999, Urochloa decumbens planted all plots, 2009, Cerrado tree species naturally emerged. following parameters were evaluated: gravimetric moisture, aggregate stability, infiltration rate, bulk density, penetration resistance, organic matter content. Soil techniques reduced mechanical resistance 50% density 19.47%. velvet bean increased moisture 11.32% compared mobilized soil. exhibited rate 90% lower than other treatments. Conservation content, particularly 0–5 cm layer. Additionally, mucuna 7% 10–20 layer enhanced carbon strategies involving initial use or positively influenced at 5–10 depths. Furthermore, pea/jack improved attributes such as infiltration, density. It concluded manuring enhances physical properties being effective alternatives are capable impacting recovery.

Language: Английский

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Converting larch monocultures to mixed-species forests: Ten-year impacts of canopy manipulation on understory regeneration

Forest Ecology and Management, Journal Year: 2025, Volume and Issue: 585, P. 122611 - 122611

Published: March 17, 2025

Language: Английский

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