WorldCat Identities

Kawamura, Kimitaka

Overview
Works: 13 works in 20 publications in 2 languages and 24 library holdings
Roles: Contributor
Publication Timeline
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Most widely held works by Kimitaka Kawamura
Teion kankyō no kagaku jiten( Book )

7 editions published in 2016 in Japanese and held by 8 WorldCat member libraries worldwide

Chikyū shisutemu kagaku no kiso : Kawaritsuzukeru taiki kankyō( Book )

2 editions published in 2004 in Japanese and held by 3 WorldCat member libraries worldwide

Taiki suiken no chikyū kagaku( Book )

1 edition published in 2005 in Japanese and held by 3 WorldCat member libraries worldwide

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1 edition published in 2018 in English and held by 1 WorldCat member library worldwide

Taiki suiken no chikyū kagaku( Book )

1 edition published in 2005 in Japanese and held by 1 WorldCat member library worldwide

Alkenone and boron based Oliocene pCO2 records, supplementary data to: Seki, Osamu; Foster, Gavin L; Schmidt, Daniela N; Mackensen, Andreas; Kawamura, Kimitaka; Pancost, Richard D (2010): Alkenone and boron based Pliocene pCO2 records. Earth and Planetary Science Letters, 292(1-2), 201-211 by Osamu Seki( )

in English and held by 1 WorldCat member library worldwide

The Pliocene period is the most recent time when the Earth was globally significantly (3?C) warmer than today. However, the existing pCO2 data for the Pliocene are sparse and there is little agreement between the various techniques used to reconstruct palaeo-pCO2. Moreover, the temporal resolution of the published records does not allow a robust assessment of the role of declining pCO2 in the intensification of the Northern Hemisphere Glaciation (INHG) and a direct comparison to other proxy records are lacking. For the first time, we use a combination of foraminiferal (delta11B) and organic biomarker (alkenone-derived carbon isotopes) proxies to determine the concentration of atmospheric CO2 over the past 5 Ma. Both proxy records show that during the warm Pliocene pCO2 was between 330 and 400 ppm, i.e. similar to today. The decrease to values similar to pre-industrial times (275-285 ppm) occurred between 3.2 Ma and 2.8 Ma - coincident with the INHG and affirming the link between global climate, the cryosphere and pCO2
Significant influence of fungi on coarse carbonaceous and potassium aerosols in a tropical rainforest( )

1 edition published in 2015 in English and held by 1 WorldCat member library worldwide

Abstract Fungal spores are ubiquitous in the Earth's atmosphere, especially in the environment of tropical rainforests with intense biological activities. To assess the impact of fungi on chemical components of atmospheric aerosols at a Chinese tropical rainforest site, size-segregated fungal spore tracers (i.e. arabitol and mannitol) were measured along with major aerosol components, including carbonaceous species and water-soluble inorganic ions. The fungal spore tracers were found to be predominately associated with coarse particles, in which organic carbon (OC) and potassium (K+) were also present at significant levels. Enhanced amounts of fungal spore tracers were closely linked to rainfall events. Moreover, fungal spore tracers exhibited positive correlations with relative humidity and negative correlations with wind speed, temperature or radiation. The relationships between fungal spore tracers and meteorological factors are consistent with the emission features of actively discharged fungal spores, which are generally associated with sugar alcohols and by-products such as the inorganic ion K+. The excellent correlations between fungal spore tracers and OC or K+ in the coarse particles further suggested their common emission sources. Absolute principal factor analysis further identified fungi as the largest contributor to coarse OC and K+ (both at ∼66%) in this rainforest
Contributions and source identification of biogenic and anthropogenic hydrocarbons to secondary organic aerosols at Mt. Tai in 2014( )

1 edition published in 2017 in English and held by 1 WorldCat member library worldwide

Growth of organic aerosols by biogenic semi-volatile carbonyls in the forestal atmosphere by Sou Matsunaga( )

1 edition published in 2003 in English and held by 1 WorldCat member library worldwide

Wet deposition of low molecular weight mono- and di-carboxylic acids, aldehydes and inorganic species in Los Angeles( )

1 edition published in 2001 in English and held by 1 WorldCat member library worldwide

Detritivore stoichiometric diversity alters litter processing efficiency in a freshwater ecosystem( )

1 edition published in 2015 in English and held by 1 WorldCat member library worldwide

Abstract : Many studies have estimated relationships between biodiversity and ecosystem functioning, and observed generally positive effects. Because detritus is a major food resource in stream ecosystems, decomposition of leaf litter is an important ecosystem process and many studies report the full range of positive, negative and no effects of diversity on decomposition. However, the mechanisms underlying decomposition processes in fresh water remain poorly understood. Organism body stoichiometry relates to consumption rates and tendencies, and decomposition processes of litter may therefore be affected by diversity in detritivore body stoichiometry. We predicted that the stoichiometric diversity of detritivores (differences in C: nutrient ratios among species) would increase the litter processing efficiency (litter mass loss per total capita metabolic capacity) in fresh water through complementation regarding different nutrient requirements. To test this prediction, we conducted a microcosm experiment wherein we manipulated the stoichiometric diversity of detritivores and quantified mass loss of leaf litter mixtures. We compared litter processing efficiency among litter species in each microcosm with single species detritivores, and observed detritivores with nutrient-rich bodies tended to prefer litter with lower C: nutrient ratios over litter with higher C: nutrient ratios. Furthermore, litter processing efficiencies were significantly higher in the microcosms containing species of detritivores with both nutrient-rich and -poor bodies than microcosms containing species of detritivores including only nutrient-rich or -poor bodies. This might mean a higher stoichiometric diversity of detritivores increased litter processing efficiency. Our results suggest that ecological stoichiometry may improve understanding of links between biodiversity and ecosystem function in freshwater ecosystems
 
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Audience level: 0.89 (from 0.85 for Chikyū sh ... to 0.99 for Taiki suik ...)

Alternative Names
Kawamura, Kimitaka, 1951-

カワムラ, キミタカ

カワムラ, キミタカ, 1951-

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