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Registros recuperados: 6
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Assessment of nutrient returns in a tropical dry forest after clear-cut without burning. Repositório Alice
AMORIM, L. B.; SALCEDO, I. H.; PAREYN, F. G. C.; ALVAREZ, I. A..
Tropical dry forests (TDFs) are being deforested at unprecedented rates. The slash/burn/ agriculture/fallow-extensive livestock sequence causes significant nutrient losses and soil degradation. Our aim is to assess nutrient inputs and outputs in a TDF area under an alternative management system, for exclusive wood production. The study involved clear-cutting a preserved caatinga TDF site without burning, quantifying nutrients exported in firewood/ timber and nutrients returned to the soil from the litter layer plus the slash debris, left to decompose unburned on the soil surface. Before clear-cut, the litter layer on the forest floor contained 6.1 t ha of dry matter (DM). After clear-cut, the aboveground biomass was 61.9 t DM ha-1 (consisting of 21.5 t DM...
Tipo: Artigo de periódico Palavras-chave: Litter decomposition; Debris decomposition; Nutrient cycling.; Caatinga..
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1002495
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Co-occurrence patterns of litter decomposing communities in mangroves indicate a robust community resistant to disturbances. Repositório Alice
TAKETANI, R. G.; MOITINHO, M. A.; MAUCHLINE, T.; MELO, I. S. de.
Abstract: Background. Mangroves are important coastal ecosystems known for high photosynthetic productivity and the ability to support marine food chains through supply of dissolved carbon or particular organic matter. Most of the carbon found in mangroves is produced by its vegetation and is decomposed in root associated sediment. This process involves a tight interaction between microbial populations, litter chemical composition, and environmental parameters. Here, we study the complex interactions found during litter decomposition in mangroves by applying network analysis to metagenomic data.
Tipo: Separatas Palavras-chave: Litter decomposition; Mangue; Planta; Decomposição; Bactéria; Mangrove forests; Metagenomics.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1098904
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Nutrient scarcity strengthens soil fauna control over leaf litter decomposition in tropical rainforests ArchiMer
Peguero, Guille; Sardans, Jordi; Asensio, Dolores; Fernández-martínez, Marcos; Gargallo-garriga, Albert; Grau, Oriol; Llusià, Joan; Margalef, Olga; Márquez, Laura; Ogaya, Romà; Urbina, Ifigenia; Courtois, Elodie A.; Stahl, Clément; Van Langenhove, Leandro; Verryckt, Lore T.; Richter, Andreas; Janssens, Ivan A.; Peñuelas, Josep.
Soil fauna is a key control of the decomposition rate of leaf litter, yet its interactions with litter quality and the soil environment remain elusive. We conducted a litter decomposition experiment across different topographic levels within the landscape replicated in two rainforest sites providing natural gradients in soil fertility to test the hypothesis that low nutrient availability in litter and soil increases the strength of fauna control over litter decomposition. We crossed these data with a large dataset of 44 variables characterizing the biotic and abiotic microenvironment of each sampling point and found that microbe-driven carbon (C) and nitrogen (N) losses from leaf litter were 10.1 and 17.9% lower, respectively, in the nutrient-poorest site,...
Tipo: Text Palavras-chave: Biogeochemistry; Extracellular enzyme activity; Litter decomposition; Nutrients; Soil fauna.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00513/62424/69469.pdf
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Predicting leaf litter decomposability: an exploratory assessment of leaf traits, litter traits and spectral properties in six Mediterranean herbaceous species Ecología austral
Pérez-Harguindeguy,Natalia; Cortez,Jacques; Garnier,Eric; Gillon,Dominique; Poca,María.
Several studies attempted to find quick and easy methods to assess litter decomposability. We tested three frequently used methods on 6 Mediterranean herbaceous species from different plant families and life forms: (1) ‘green leaves traits’: traits of living leaves related to the strategies of living plants; (2) ‘litter traits’: litter respiration during in vitro incubation and initial litter properties; and (3) ‘leaf and litter spectral properties’: the spectral characteristics (NIR) of green leaves and litter. We analyzed the relationship between these methods and their consistency to assess litter decomposability in the field. Green leaves spectral properties were the most accurate to predict...
Tipo: Info:eu-repo/semantics/article Palavras-chave: NIRS; Forbs; Grasses; Litter decomposition; Litter quality; Functional markers.
Ano: 2015 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2015000100007
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The effects caused by the replacement of native riparian forest with Eucalyptus sp. on the benthic macro-invertebrate community. Repositório Alice
REMOR, M. B.; SANTOS, C.; SAMPAIO, S. C.; SGARBI, L. F..
The replacement of native riparian forests with exotic plants, especially Eucalyptus sp. can cause changes in ecological processes of small orders rivers. The leaves of Eucalyptus sp. have lower nutrients concentration, higher hardness and secondary metabolites which inhibit the decomposing micro-organisms and benthic macro-invertebrate colonization, which are the connection between the dead organic matter and the rest of the food chain. Thus the aim of the study was to test the following hypothesis: leaf decomposition rate will be lower in the substrate composed of Eucalyptus sp. leaves, when compared to the substrate composed of native tree species leaves; the benthic macro-invertebrates diversity will be lower in the substrate composed of Eucalyptus sp....
Tipo: Artigo de periódico Palavras-chave: Riparian forest; Exotic plants; Litter decomposition; Decomposição de serrapilheira; Litter bag; Degradative succession; Sucessão degradativa; Diversity; Diversidade; Mata ciliar; Planta exótica.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/982268
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ปริมาณการร่วงหล่นและการสลายตัวของซากพืชในสวนป่าไม้ ต่างถิ่น ณ ดอยอ่างขาง จังหวัดเชียงใหม่ Thai Agricultural
Putchanat Sang-on.
Thesis (M.Sc. in Forestry)
Tipo: PhysicalObject Palavras-chave: Exotic tree plantation; Litterfall; Litter decomposition; Doi Angkhang; ป่าไม้; การร่วงหล่น; การสลายตัว; ซากพืช; อัตราการปลดปล่อยสารอาหาร; สวนป่าไม้.
Ano: 2007 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5462
Registros recuperados: 6
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