Litterfall 15n abundance indicates declining soil nitrogen. Pdf litterfall production and fine root dynamics in cool. Information and translations of litterfall in the most comprehensive. Litterfall production and litterfall c the mean litterfall for the 1y period of study was 11. It is also essential to know the litter decomposition rate, nutrient return through litter, decomposing macro. Manual part xi sampling and analysis of litterfall icp forests. This database is therefore limited to aboveground litterfall.
Litterfall dynamics along a successional gradient in a. Annual litterfall dynamics and nutrient deposition. Litterfall rates during the dry season were considerably higher than those of the rainy season 8. Pdf litterfall is a key parameter in the biogeochemical cycle linking the tree part to the. Litterfall production, the amount of organic matter on the forest floor, and litter decomposition rates were studied in an exotic nitrogen nfixing black locust robinia pseudoacacia plantation and an indigenous nonnfixing oak quercus liaotungensis forest near yanan, on the loess plateau, china. Litterfall, nutrient return, and leaflitter decomposition in four. Influence of site characteristics and thinning intensity. Free fulltext pdf articles from hundreds of disciplines, all in one place litterfall production and fine root dynamics in cooltemperate forests pdf paperity toggle navigation. However, the determination of forest litterfall production patterns is difficult due to many biophysical factors influencing the process. No correlation for humidity and rainfall against litterfall production was found.
Total annual litter production in different age stands varies from 1. Annual mean litterfall production in tropical seasonal forest tsf 9. Keumsan lter site article pdf available january 20 with 48 reads how we measure reads. Conclusions and perspectives are presented in section 7. K and renewal times were also significantly different among the sites. Litterfall leaves, woody free air co 2 enrichment experiment charles t. Our results suggest that litter production in the studied tdf is influenced by multiple. Litterfall production and fine root dynamics in cooltemperate forests article pdf available in plos one 126. Litter production, seasonal pattern and nutrient return in seven. In this study, we estimate the quantity of global hg deposition through litterfall using statistical modeling monte carlo simulation of. Pdf litterfall production, decomposition and nutrient. Pdf litterfall production in forests located at the pre.
Litterfall dynamics along a successional gradient in a brazilian. Article pdf available in annals of forest science 67. Litterfall was sampled biweekly during the snow free period may to november, depending on the latitude of the plot, and once at the end of winter. Pdf litterfall production of forests at the predelta. Forests free fulltext litterfall production prior to. Forests free fulltext carbon and nutrient inputs by. Hg deposition through litterfall represents an important input to terrestrial forest ecosystems via cumulative uptake of atmospheric hg most hg0 to foliage. Pdf litterfall production along successional and altitudinal.
Models of litterfall production for scots pine pinus. Pdf annual variations of litterfall production in a. Litterfall production is a quantitative parameter of stand vitality and. Production, decomposition, and release of nutrients from leaf and nonleaf litter were investigated in four subalpine forests of northwest himalaya, india. Drought effects on litterfall, wood production and. Litterfall production is a quantitative parameter of stand vitality and gives. In this study, we 1 quantified the litterfall production and carbon and nutrient fluxes in warmtemperate evergreen. The growing season is relatively long with an annual frostfree period. Leaf litter production of a tropical forest of bank santa marta.
Annual litterfall production prior to the arrival of hurricanes irma and maria varied from 4. Norby environmental sciences division, oak ridge national laboratory, oak ridge, tennessee 37831 usa. Litterfall is provided for as long as the mature forest exists. However, with the emergence of global warming as a serious concern in. Enhanced tropical forest productivity, facilitated by increasing carbon dioxide concentrations, could act as a substantial carbon sink. The monthly production of moisturefree dry weight per litterfall on average was. Litter production, decomposition, and nutrient release in. Changes in carbon pool and stand structure of a native. Comparison of litterfall production and leaf litter. The amount and pattern of litterfall and its nutrient return were studied in seven natural forests of. Litterfall 15 n abundance indicates declining soil nitrogen availability in a free.
Annual litterfall production increased with stand age. Global litter production, pools, and turnover times. Pdf evaluation of litterfall production is important for understanding nutrient cycling, forest growth, successional. View the article pdf and any associated supplements and figures for a period of 48 hours. Litterfall production and fluvial export in headwater catchments of the southern amazon article pdf available in journal of tropical ecology 2303 may 2007 with 112 reads how we measure reads. Hamiguitan is a younger ecosystem as its leaf component accounts for more than 70% of the total litter production. In this study, we investigated litterfall and fine root biomass and production in five deciduous and four coniferous forests at the gwangneung experimental forest in korea. Litterfall production in forests located at the predelta area of the parana river argentina. Soil carbon release enhanced by increased tropical forest.
Litterfall production is a quantitative parameter of stand vitality and gives additional information to visual assessment of tree vitality already observed in each plot. In nearly every data source only aboveground litterfall production was reported. Seasonal variations in litter production and litter. In this method, fine root growth into a rootfree soil in situ is measured to estimate the production 30,48. However, if ash was reported separately from dry mass, the ash weight was subtracted and ash free dry weight was reported. Litterfall production was studied for 30 months in two contrasting pinus sylvestris l. Litterfall from the mixed forest showed a significant seasonal dynamic p free period. Evaluation of litterfall production of casuarina in farm forestry plantation is important for understanding nutrient turnover, c and n fluxes as well as c and n pools. Litterfall, plant litter, leaf litter, tree litter, soil litter, or duff, is dead plant material such as leaves, bark, needles, twigs, and cladodes that have fallen to the ground. Litterfall production of forests at the predelta area of the parana river argentina article pdf available in annals of forest science 303 may 2010 with 54 reads how we measure reads. Litter decomposition and the formation of humus are processes that are dependent on vegetation and the quality and quantity of its litter production e.
Pdf sampling and analysis of litterfall researchgate. A global database of litterfall mass and litter pool. The chemical composition of litterfall and soil was also examined. This detritus or dead organic material and its constituent nutrients are added to the top layer of soil, commonly known as the litter layer or o horizon o for organic. This study aimed to determine the influence of soil traits, vegetation structure and climate on litterfall dynamics along a successional gradient in a tropical dry forest tdf in southeastern brazil. Monthly litterfall production ranged between 10671907 kg ha1, in comparison with other coniferous stands around the world, this study revealed a higher litterfall. Litterfall production and fine root dynamics in cool. There is a large uncertainty in the estimate of global dry deposition of atmospheric mercury hg.
Pdf litterfall production under pine plantations in the. Litterfall and wood production recovered rapidly following cessation of the drought. Becker et al annual litterfall dynamics and nutrient deposition and disturbed conditions is important to assess the overall impact of anthropogenic land use on tropical forest ecosystems. Litterfall produced by plants is the main source of organic matter for forest soil. General description of litterfall and littermass data categories. Assessing the relative role of climate on litterfall in mediterranean. The countries are free to select the type of traps for the monitoring of litterfall. The study of quantitative aspects of litterfall is an important part of forest ecology, dealing with a major pathway for both energy and nutrient transfer in ecosystem. Mgha was not significant different from litterfall in the young stand nearby p0. Litterfall production, decomposition and nutrient use efficiency in three different tropical forest ecosystems in sw china were studied for 10 years. As nutrient availability ultimately influences primary production, the amount, seasonality and the rate of decomposition of litterfall have profound.
Linking spatial patterns of leaf litterfall and soil. Annual variations of litterfall production in a broadleaved deciduous forest at the mt. The significance of liquid fuel production from woody. Litter production and accumulation as an indicator of.
We used a chronosequence design consisting of three successional stages early, intermediate, and oldgrowth defined based on forest age and vertical and horizontal structures. Total annual litter fall in four communities varied from 2950. Linking spatial patterns of leaf litterfall and soil nutrients in a tropical forest. Changes in litterfall are responses to disturbances caused by pests or environmental factors like spring frost, drought, wind, pollution.
Litterfall production, decomposition and nutrient accumulation in sundarbans mangrove forests, bangladesh article pdf available in forest science and technology. On an annual basis, needle litterfall accounts for the main part ca. Definitions definitions of litter production also referred to as litterfall and detrital production and litter pool forest floor mass or. Litterfall production and decomposition are important ecosystem processes closely linked to terrestrial ecosystem structure and function e.
Assessment of global mercury deposition through litterfall. All free standing woody stems with dbh 1 cm at cm from the ground diameter at breast. Litterfall production and fine root dynamics in cooltemperate forests. Review paper energy production from biomass part 1.
Knowledge about carbon and nutrient fluxes by litterfall is important for understanding nutrient cycling in geologically unique ecosystems. Canopy litterfall represents the major aboveground pathway by which carbon and nutrients are returned to the forest floor cole and rapp, 1981. In general, both upper elevation stands produced less fine litter than several other tropical montane rain forests fig. Current understanding of litterfall and fine root dynamics in temperate forests is limited, even though these are the major contributors to carbon and nutrient cycling in the ecosystems. B litterfall production and nutrient return to the forest floor 69 litterfall trap.
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