Diurnal and seasonal dynamics of soil respiration at temperate Leymus chinensis meadow steppes in western Songnen Plain, China
نویسندگان
چکیده
منابع مشابه
Effects of Grazing and Mowing on Leymus Chinensis Grassland in the Songnen Plain of Northeastern China
Effects of mowing and grazing on a Leymus chinensis grassland in the Songnen plain of northeastern China were studied using eight replicates of four grazing and mowing treatments. Canopy cover and biomass of the dominant species (L. chinensis) were lower, and cover of the halophyte Suaeda corniculata higher, on grazed than ungrazed; ungrazed plots showed a response to mowing, but not grazing; s...
متن کاملComparative photosynthetic and growth characteristics of Leymus chinensis and Leymus secalinus in sandy and saline-alkaline soil on the Songnen Plains of China
Leymus chinensis and Leymus secalinus are perennial rhizome grasses; photosynthetic physiological characteristics were compared between them in Sandy and Saline-Alkaline Soils on the Songnen Plains of China. The contents of chlorophyll and soluble saccharides were positively correlated with photosynthetic characteristics. The photosynthetic capacity of L. chinensis was significantly greater tha...
متن کاملField-Scale Spatial Variation of Saline-Sodic Soil and Its Relation with Environmental Factors in Western Songnen Plain of China
The objectives of this study were to investigate the degree of spatial variability and variance structure of salinization parameters using classical and geostatistical method in Songnen Plain of China, which is one of largest saline-sodic areas in the World, and to analyze the relationship between salinization parameters, including soil salinity content (SC), electrical conductivity (EC), sodiu...
متن کاملPartitioning root and microbial contributions to soil respiration in Leymus chinensis populations
Based on the enclosed chamber method, soil respiration measurements of Leymus chinensis populations with four planting densities (30, 60, 90 and 120 plants/0.25 m) and blank control were made from July 31 to November 24, 2003. In terms of soil respiration rates of L. chinensis populations with four planting densities and their corresponding root biomass, linear regressive equations between soil...
متن کاملSoil Respiration and Organic Carbon Dynamics with Grassland Conversions to Woodlands in Temperate China
Soils are the largest terrestrial carbon store and soil respiration is the second-largest flux in ecosystem carbon cycling. Across China's temperate region, climatic changes and human activities have frequently caused the transformation of grasslands to woodlands. However, the effect of this transition on soil respiration and soil organic carbon (SOC) dynamics remains uncertain in this area. In...
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ژورنال
عنوان ژورنال: Chinese Geographical Science
سال: 2014
ISSN: 1002-0063,1993-064X
DOI: 10.1007/s11769-014-0682-5