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Carbon dioxide balance of a tropical peat swamp forest in Kalimantan, Indonesia
Tropical peatlands, which coexist with swamp forests, have accumulated vast amounts of carbon as soil organic matter. Since the 1970s, however, deforestation and drainage have progressed on an…
Effects of disturbances on the carbon balance of tropical peat swamp forests
- T. Hirano, H. Segah, K. Kusin, S. Limin, Hidenori Takahashi, M. Osaki
- Environmental Science
- 1 November 2012
Tropical peatlands have accumulated huge soil carbon over millennia. However, the carbon pool is presently disturbed on a large scale by land development and management, and consequently has become…
Beneficial effect of aluminum on growth of plants adapted to low pH soils
Plants in which growth was reduced by low and high Al applications were designated as Al-sensitive plant and Al-medium tolerant plants and plants tolerant to or stimulated by Al were classification based on the criteria of Al accumulation.
Analysis of bacterial communities on alkaline phosphatase genes in soil supplied with organic matter
The results raise the possibility that different ALP-harboring bacteria release different amounts and/or activity of ALP, and that the structure of ALP-Harboring bacterial communities may play a major role in determining overall soil ALP activity.
Redistribution of carbon and nitrogen compounds from the shoot to the harvesting organs during maturation in field crops
The results obtained showed that during the translocation of amino acids from leaves to harvesting organs through stems, the composition of free amino acids differed widely among organs and crops, and differed from that of protein amino acids.
Transcriptomic analysis of metabolic changes by phosphorus stress in rice plant roots
To investigate the alteration of gene expression of rice roots grown under P-deficient conditions, a transcriptomic analysis was conducted using a cDNA microarray on rice, and the up-regulation of some genes due to P deficiency was confirmed.
Secretion of phytase from the roots of several plant species under phosphorus-deficient conditions
The results indicate that the secretory phytase may provide an efficient mechanism for certain plants to utilize inositol hexaphosphate in soil.
Evolutionary control of leaf element composition in plants.
Identifying higher-level phylogenetic variation in leaf elemental composition increases the understanding of terrestrial nutrient cycles and the transfer of toxic elements from soils to living organisms.
Secreted acid phosphatase is expressed in cluster roots of lupin in response to phosphorus deficiency
It was suggested that decrease of internal P concentration stimulated both of the S-APase expression and cluster root formation, and was especially high in cluster roots formed under conditions of P -deficiency.
Evapotranspiration of tropical peat swamp forests
The undrained PSF (UF) had high and rather stable annual ET, independently of El Niño and La Niña events, in comparison with other tropical rainforests, and the positive relationship between ET and GWL indicates that drainage by a canal decreased ET at DF through lowering GWL.