Soil dissolved organic carbon: Influences of water-filled pore space and red clover addition and relationships with microbial biomass carbon
نویسندگان
چکیده
منابع مشابه
Variations in Soil Microbial Biomass Carbon and Soil Dissolved Organic Carbon in the Re-Vegetation of Hilly Slopes with Purple Soil
Crust restoration is increasingly being done but we lack quantitative information on soil improvements. The study aimed to elucidate the dynamics involving soil microbial biomass carbon and soil dissolved organic carbon in the re-vegetation chronosequences of a hillslope land with purple soil in Hengyang, Hunan Province. The soil can cause serious disasters with both soil erosion and seasonal d...
متن کاملDynamics of Soil Organic Carbon and Microbial Biomass Carbon in Relation to Water Erosion and Tillage Erosion
Dynamics of soil organic carbon (SOC) are associated with soil erosion, yet there is a shortage of research concerning the relationship between soil erosion, SOC, and especially microbial biomass carbon (MBC). In this paper, we selected two typical slope landscapes including gentle and steep slopes from the Sichuan Basin, China, and used the (137)Cs technique to determine the effects of water e...
متن کاملLake metabolism: Relationships with dissolved organic carbon and phosphorus
Recent literature has suggested that for many lakes and rivers, the respiratory breakdown of organic matter (R) exceeds production of organic matter by photosynthesis (gross primary production [GPP]) within the water body. This metabolic balance (GPP , R; ‘‘heterotrophy’’) implies that allochthonous organic matter supports a portion of the aquatic ecosystem’s respiration. Evidence that many lak...
متن کاملImportance of microbial soil organic matter processing in dissolved organic carbon production.
Soil dissolved organic carbon (DOC) sources and its seasonal dynamics are poorly known. We aimed to determine the contribution of plant and soil organic matter (SOM) to size classes of DOC in a field experiment with C3 to C4 vegetation change on two soil types through different seasons. Stable isotope ratios of DOC size classes were measured using size exclusion chromatography (SEC) coupled onl...
متن کاملAddition of External Organic Carbon and Native Soil Organic Carbon Decomposition: A Meta-Analysis
BACKGROUND Extensive studies have been conducted to evaluate the effect of external organic Carbon on native soil organic carbon (SOC) decomposition. However, the direction and extent of this effect reported by different authors is inconsistent. OBJECTIVE The objective was to provide a synthesis of existing data that comprehensively and quantitatively evaluates how the soil chemical propertie...
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ژورنال
عنوان ژورنال: Canadian Journal of Soil Science
سال: 2004
ISSN: 0008-4271,1918-1841
DOI: 10.4141/s02-030