scholarly journals Weight Loss and Nutrient Dynamics during Leaf Litter Decomposition of Quercus variabilis and Pinus densiflora at Mt. Worak National Park

2008 ◽  
Vol 31 (4) ◽  
pp. 291-295 ◽  
Author(s):  
Jeong NamGung ◽  
A-Reum Han ◽  
Hyeong-Tae Mun
2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Yukiya Minamino ◽  
Nobuhide Fujitake ◽  
Takeshi Suzuki ◽  
Shinpei Yoshitake ◽  
Hiroshi Koizumi ◽  
...  

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.


Oikos ◽  
2005 ◽  
Vol 110 (1) ◽  
pp. 133-145 ◽  
Author(s):  
Jennifer A. Schweitzer ◽  
Joseph K. Bailey ◽  
Stephen C. Hart ◽  
Gina M. Wimp ◽  
Samantha K. Chapman ◽  
...  

2011 ◽  
Vol 27 (2) ◽  
pp. 205-210 ◽  
Author(s):  
Krista A. Capps ◽  
Manuel A. S. Graça ◽  
Andrea C. Encalada ◽  
Alexander S. Flecker

Decomposition of leaf litter is an important process that releases energy and nutrients in both terrestrial and aquatic environments (Moore et al. 2004, Wallace et al. 1997); therefore, the physical, chemical and biological processes controlling leaf-litter decomposition rates can affect nutrient cycling and productivity in these systems (Cross et al. 2007, Wood et al. 2009). Several studies have shown that leaf decomposition is faster in aquatic than in terrestrial habitats due to relatively constant temperatures, continuous leaching and the physical breakdown of leaves by flowing water (Hutchens & Wallace 2002, Langhans & Tockner 2006, Langhans et al. 2008). Yet, comparatively few studies have examined these relationships in tropical systems with flooded forests. Flooding is a predominant feature of the upper Amazon Basin, but its occurrence and magnitude is complex and not strictly seasonal (Junk et al. 1989). To identify the dominant energy pathways and understand the nutrient dynamics of upper Amazon rain forests, it is imperative to investigate organic matter processing in the aquatic/terrestrial transition zones of these ecosystems.


2001 ◽  
Vol 65 (4) ◽  
pp. 1334-1347 ◽  
Author(s):  
Terrell T. Baker ◽  
B. Graeme Lockaby ◽  
William H. Conner ◽  
Calvin E. Meier ◽  
John A. Stanturf ◽  
...  

2008 ◽  
Vol 13 (1) ◽  
pp. 25-34 ◽  
Author(s):  
Atiqur Rahman Barbhuiya ◽  
Ayyanadar Arunachalam ◽  
Prabhat Chandra Nath ◽  
Mohammed Latif Khan ◽  
Kusum Arunachalam

2020 ◽  
Vol 30 (1) ◽  
pp. 32-38
Author(s):  
S. Bhattarai ◽  
B. Bhatta

Leaf-litter decomposition in terrestrial ecosystems has a major role in recycling the nutrients to the soil. Nutrient dynamics is the way nutrients cycle in an ecosystem. The present study was conducted for five selected tropical tree species viz. Shorea robusta, Ficus hookeri, Mallotus philippensis, Artocarpus lakoocha and Dillenia pentagyna at Hetauda, Makawanpur. This paper aims to determine the litter decomposition rate-constant and nutrient mineralization pattern of the selected species. The litter-bag method was used to assess the decomposition and nutrient dynamics for one year. Both decomposition rate-constant and weight loss were highest for M. philippensis (% weight loss = 73.49; k = 0.33) and lowest for S. robusta (% weight loss = 54.01; k = 0.18). In general, weight remaining showed a strong negative correlation with N and P concentration but a slightly negative with K. However, the remaining weight of litter showed a strong positive correlation with C : N ratio, thus indicating a good predictor of mass loss and mineralization. The study showed that there was no net release of nitrogen during the one-year study period; however, the net P release was found to be highest for S. robusta followed by D. pentagyna and the net K release was highest in F. hookeri followed by A. lakoocha.


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