scholarly journals Leaf-litter production in human-modified Amazonian forests following the El Niño-mediated drought and fires of 2015–2016

2021 ◽  
Vol 496 ◽  
pp. 119441
Author(s):  
Tainá Madalena Oliveira de Morais ◽  
Erika Berenguer ◽  
Jos Barlow ◽  
Filipe França ◽  
Gareth D. Lennox ◽  
...  
Keyword(s):  
Leaf Litter ◽  
El Niño ◽  
El Nino ◽  
Litter Production ◽  
Amazonian Forests ◽  
Leaf Litter Production

scholarly journals LITTER CONTRIBUTION ON DIFFERENT GEOMORPHOLOGICAL CONDITIONS IN THE ATLANTIC FOREST – STATE OF RIO DE JANEIRO, BRAZIL

FLORESTA ◽  
2019 ◽  
Vol 49 (3) ◽  
pp. 373
Author(s):  
Victória Maria Monteiro Mendonça ◽  
Gilsonley Lopes Santos ◽  
Marcos Gervasio Gervasio Pereira ◽  
Carlos Eduardo Gabriel Menezes
Keyword(s):  
Leaf Litter ◽  
Forest Floor ◽  
Rio De Janeiro ◽  
Deciduous Forest ◽  
Abiotic Factors ◽  
Nutrient Content ◽  
Litter Production ◽  
Forest Fragments ◽  
Small Sites ◽  
Leaf Litter Production

The deposition of leaf litter on the forest floor is influenced by biotic and abiotic factors where forest fragments are inserted, which is a major source of nutrients to the soil. The objective of this study was to evaluate the influence of the change in relief conditions (landform) in leaf litter contribution and nutrient content in a Submontane Seasonal Semi-deciduous Forest in Pinheiral (state of Rio de Janeiro, Brazil). It was selected two adjacent landforms with convex and concave relief type and they divided into small sites (SS), obeying the variation of the slope and topographic gradient. Five conic collectors with an area of 0.2834 m² were installed in each SS, totaling 30 collectors. The collections of leaf litter were carried out every 30 days during a year. The material retained in the traps was separated as the fractions; leaves, twigs, reproductive and other material to assess the proportion of each fraction in the leaf litter production and nutrient content of the fraction leaves. The contribution and nutrient content of litter are influenced by the type of landform and seasons of the year. The highest contribution was observed in the dry season, in the lower and middle SS of the landforms, and the highest nutrient levels occurred in the convex landform during the rainy season.

In situ leaf litter production, decomposition and nutrient release of dry Afromontane trees

2019 ◽  
Vol 83 (3) ◽  
pp. 176-190 ◽  
Author(s):  
Emiru Birhane ◽  
Tekleab Desalegn ◽  
Fassil Kebede ◽  
Kidane Giday ◽  
Hadgu Hishe ◽  
...  
Keyword(s):  
Leaf Litter ◽  
Nutrient Release ◽  
Litter Production ◽  
Leaf Litter Production

Small biodiversity effects on leaf litter production of a seasonal heath vegetation

2020 ◽  
Vol 31 (5) ◽  
pp. 877-886
Author(s):  
José Luiz Alves Silva ◽  
Alexandre Fadigas Souza ◽  
Louis Stephen Santiago ◽  
Anderson da Rocha Gripp ◽  
Ana Elizabeth Bonato Asato ◽  
...  
Keyword(s):  
Leaf Litter ◽  
Litter Production ◽  
Leaf Litter Production ◽  
Biodiversity Effects

scholarly journals Produksi Serasah Musiman pada Berbagai Spesies Mangrove di Pesisir Kabupaten Muna Barat, Sulawesi Tenggara

2020 ◽  
Vol 25 (3) ◽  
pp. 323-333
Author(s):  
Rahman Rahman ◽  
Yusli Wardiatno ◽  
Fredinan Yulianda ◽  
Iman Rusmana
Keyword(s):  
Leaf Litter ◽  
Mangrove Ecosystem ◽  
Litter Production ◽  
Bruguiera Gymnorrhiza ◽  
Rhizophora Stylosa ◽  
Rhizophora Apiculata ◽  
Sonneratia Alba ◽  
Wet Weight ◽  
Bruguiera Cylindrica ◽  
Leaf Litter Production

Mangrove litter production is important in the displacement of organic matter from mangrove vegetation to water such as in the coast of West Muna Regency. However, one factor influencing it is the frequency of rainfall. This research, therefore, aims to determine the influence of the frequency of rainfall in mangrove ecosystem by obtaining data through the fractional wet weight. The results showed that the biomass fraction with the largest amount were Rhizophora mucronata, Rhizophora apiculata, and Sonneratia alba with of 31.59; 31.07; and 30.96%, respectively, while the lowest was Rhizophora stylosa, Bruguiera cylindrica, and Bruguiera gymnorrhiza with of 30.07; 30.10; and 31.95%, respectively. The species with the largest leaf litter production was Bruguiera cylindrica, with of 1.72 g.m-2.day-1 which occurred in April and the lowest was Rhizophora apiculata, 0.24 g.m-2.day-1 in August. The species with the largest leaf litter production was Bruguiera cylindrica, 1.96 g.m-2.day-1 which occurred in May and the lowest was Sonneratia alba, 0.29 g.m-2.day-1 in August. In addition, the species with the largest fruit litter production was Rhizophora apiculata, 1.76 g.m-2.day-1 in April and the lowest was Sonneratia alba, 0.32 g.m-2.day-1 in September. The total litter production was 18,75 g.m-2.day-1 consisted of 6,69 g.m2.day-1 leaf litter, 6,54 g.m-2.day-1 branch litter, and 5,52 g.m-2.day-1 fruit litter. The higher the frequency of the rain, the greater the litter production.   Keywords: biomass fraction, seasonal litter production, West Muna Regency

scholarly journals PRECIPITATION DEFICITS AND HIGH TEMPERATURE INCREASE LEAF LITTERFALL IN OPEN RESTINGA VEGETATION, IN SOUTHERN BRAZIL

2020 ◽  
Vol 24 (04) ◽  
pp. 803-818
Author(s):  
Anderson da Rocha Gripp ◽  
◽  
Luísa Alícida Fernandes Tavares ◽  
Leticia da Silva Brito ◽  
Adriano Caliman ◽  
...  
Keyword(s):  
Water Stress ◽  
Leaf Litter ◽  
Climatic Conditions ◽  
Litter Production ◽  
Leaf Production ◽  
Leaf Litterfall ◽  
Precipitation Regimes ◽  
Annual Scale ◽  
Cam Photosynthesis ◽  
Leaf Litter Production

Climate is an important driver of litterfall along different ecosystems. However, little is known about how climate affects litter production in plant communities of Restinga. The aim of this study is to characterize the temporal variation in leaf litter production in an Open Clusia Formation in Restinga de Jurubatiba National Park, from 2001 to 2018, and assess how local variability in litter production reflects the local climatic conditions and its variability. We tested the hypothesis that monthly leaf litterfall increases in dry months and in drier and warmer than average months; we also evaluated if annual leaf litterfall increases in wetter and warmer years following leaf production patterns, that increases in these conditions. We found that litterfall peaks in the drier months. This pattern is consistent for many tropical ecosystems, even evergreen ecosystems, and may have evolved as a strategy that result in reduced water stress by plants, during drier and warmer periods, or may simply be a stress symptom. However, we also found that decreases in monthly rainfall and increases in monthly ∆Temperature (temperature observed minus estimated based on 1970-2000 interval) stimulate leaf litter production. Hot and warmer than average years also seem to stimulate leaf litterfall. It suggests that annual leaf litterfall and leaf production are less affected by precipitation regimes than variations in temperature (or radiation, which is directly related to temperature). It may result from the fact that Clusia hilariana, the dominant species in this ecosystem which accounts to 80 % of leaf litterfall, is a CAM photosynthesis species, a characteristic commonly associated with avoidance of water stress by plants. Although leaf litterfall seems to be predominantly driven by climate at annual scale, only 15 % of its variation was associated to climate at seasonal scale, suggesting that local factors control litterfall at lower temporal scales in Open Clusia Formation.

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