scholarly journals Nutrient cycling in deciduous forest ecosystems of the Sierra de Gata mountains: nutrient supplies to the soil through both litter and throughfall

1998 ◽  
Vol 55 (7) ◽  
pp. 771-784 ◽  
Author(s):  
Juan F. Gallardo ◽  
Alejandro Martín ◽  
Gerardo Moreno ◽  
Ignacio Santa Regina
Keyword(s):  
Nutrient Cycling ◽  
Forest Ecosystems ◽  
Deciduous Forest

scholarly journals Effect of biochar addition on leaf-litter decomposition at soil surface during three years in a warm-temperate secondary deciduous forest, Japan

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Yukiya Minamino ◽  
Nobuhide Fujitake ◽  
Takeshi Suzuki ◽  
Shinpei Yoshitake ◽  
Hiroshi Koizumi ◽  
...  
Keyword(s):  
Carbon Sequestration ◽  
Leaf Litter ◽  
Litter Decomposition ◽  
Forest Floor ◽  
Nutrient Dynamics ◽  
Forest Ecosystems ◽  
Deciduous Forest ◽  
Soil Surface ◽  
Leaf Litter Decomposition ◽  
Dry Conditions

AbstractThe addition of biochar to the forest floor should facilitate efficient carbon sequestration. However, little is known about how biochar addition effects litter decomposition, which is related to carbon and nutrient dynamics in forest ecosystems. This study evaluated the effect of biochar addition on leaf litter decomposition in a forest ecosystem. To examine whether leaf litter decomposition was stimulated above and below biochar, litterbag experiments were carried out for about 3 years in a field site where biochar was added at the rate of 0, 5 and 10 t ha−¹ (C0, C5 and C10 plots) to the forest floor in a temperate oak forest, Japan. Biochar addition at C10 significantly enhanced litter decomposition below biochar for 2 years after treatment and above biochar for 1 year after treatment. Litter water content in biochar plots tended to increase under dry conditions. Biochar addition enhanced litter decomposition because of increased microbial activity with increased moisture content and accelerated the decomposition progress rather than changing the decomposition pattern. However, the carbon emission through changing leaf litter decomposition was small when compared with the carbon addition by biochar, indicating that biochar could be an effective material for carbon sequestration in forest ecosystems.

scholarly journals Ectomycorrhizal Fungi: Participation in Nutrient Turnover and Community Assembly Pattern in Forest Ecosystems

Forests ◽  
2020 ◽  
Vol 11 (4) ◽  
pp. 453
Author(s):  
Yanjiao Liu ◽  
Xiangzhen Li ◽  
Yongping Kou
Keyword(s):  
Climate Change ◽  
Nutrient Cycling ◽  
Ectomycorrhizal Fungi ◽  
Host Plants ◽  
Forest Ecosystems ◽  
Global Climate ◽  
Soil Conditions ◽  
Fenton Chemistry ◽  
Soil P ◽  
Historical Factors

Ectomycorrhizal fungi (EcMF) are involved in soil nutrient cycling in forest ecosystems. These fungi can promote the uptake of nutrients (e.g., nitrogen (N) and phosphorus (P)) and water by host plants, as well as facilitate host plant growth and resistance to stresses and diseases, thereby maintaining the aboveground primary productivity of forest ecosystems. Moreover, EcMF can acquire the carbon (C) sources needed for their growth from the host plants. The nutrient regulation mechanisms of EcMF mainly include the decay of soil organic matter via enzymatic degradation, nonenzymatic mechanism (Fenton chemistry), and priming effects, which in turn promote C and N cycling. At the same time, EcMF can secrete organic acids and phosphatases to improve the availability of soil P, or increase mycelium inputs to facilitate plant acquisition of P. The spatiotemporal distribution of EcMF is influenced by a combination of historical factors and contemporary environmental factors. The community of EcMF is associated with various factors, such as climate change, soil conditions, and host distribution. Under global climate change, investigating the relationships between the nutrient cycling functions of EcMF communities and their distribution patterns under various spatiotemporal scales is conducive to more accurate assessments of the ecological effects of EcMF on the sustainable development of forest.

scholarly journals Diversity of soil mites (Acari: Mesostigmata: Gamasina) in various deciduous forest ecosystems of Muntenia region (southern Romania)

2013 ◽  
Vol 50 (1) ◽  
pp. 3-16 ◽  
Author(s):  
Minodora Manu
Keyword(s):  
Forest Ecosystems ◽  
Soil Moisture Content ◽  
Deciduous Forest ◽  
Abiotic Factors ◽  
Slope Angle ◽  
Main Task ◽  
Soil Mites ◽  
Geographical Position ◽  
Taxonomical Classification ◽  
Mite Communities

Abstract The main task of the research was to investigate the diversity of predatory soil mites (Gamasina) in 8 types of forest ecosystems: alder (Călugăreni, Clinceanca, Azuga Valley, Cumpătu), oak-hornbeam (Baloteşti, Băneasa), beech (Şotrile), and fir-beech (Lunca Mare) in Muntenia region. Taxonomical classification and statistical methods used in this study show similarities as well as differences between their predatory mite communities. In total, 467 mites of 57 gamasid species were identified, belonging to 28 genera and 12 families. Veigaia nemorensis, Prozercon fimbriatus, P. kochii, and P. traegardhi were most abundant. Geographical position, abiotic factors (soil type, slope angle, soil moisture content, pH) and biotic ones (vegetation structure: herbs, shrubs or trees) were related to differences in gamasid species composition between the investigated forest ecosystems.

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