Predicting soil respiration using carbon stock in roots, litter and soil organic matter in forests of Loess Plateau in China

Zhang, Zhou; Zhang, Zhiqiang; Zha, Tonggang; Luo, Zhongkui; Zheng, Jingming; Sun, Osbert Jianxin

doi:10.1016/j.soilbio.2012.08.010

Cited by 78 publications

(50 citation statements)

References 32 publications

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“…Zhou et al (2013) also reported similar results that the SOC stock of natural woodland (61 Mg ha À1 ) was significantly higher than that of artificial woodland (16 Mg ha À1 ) at the 0-20 cm depth in the Caijiachuan watershed of the Loess Plateau. The SOC stock of shrubland at the 0-20 cm depth in this study was higher than 11.60 Mg ha À1 for natural shrubland (Prunus armniaca and Hippophae rhamnoide) in the Yangjuangou watershed of the Loess Plateau (Wang et al, 2011) and 5.90 Mg ha À1 for artificial shrubland Sum is the total soil organic carbon at the 0-100 cm depth; Values followed by capital letters within rows and lowercase letters within columns are significantly different at P < 0.05.…”

Section: Vegetation Restoration Approaches Influenced the Soc Stock Asupporting

confidence: 54%

Soil organic carbon sequestration potential of artificial and natural vegetation in the hilly regions of Loess Plateau

Wang

Guo

Sun

et al. 2015

Ecological Engineering

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Section: Vegetation Restoration Approaches Influenced the Soc Stock Asupporting

confidence: 54%

Soil organic carbon sequestration potential of artificial and natural vegetation in the hilly regions of Loess Plateau

Wang

Guo

Sun

et al. 2015

Ecological Engineering

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“…Current photosynthate is supplied for root and rhizosphere respiration (Hög-berg et al, 2001;Tang et al, 2005;Han et al, 2014). Litterfall is supplied for heterotrophic microbe respiration (Reichstein et al, 2002;Zhou et al, 2013). These processes are influenced by soil nitrogen content (Allison et al, 2008;Deng et al, 2010).…”

Section: Plant Drivers Of the Topographic Variation In Soil Respiratimentioning

confidence: 99%

Microtopographic variation in soil respiration and its controlling factors vary with plant phenophases in a desert–shrub ecosystem

et al. 2015

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Abstract. Soil respiration (R s ) and its biophysical controls were measured over a fixed sand dune in a desertshrub ecosystem in northwest China in 2012 to explore the mechanisms controlling the spatial heterogeneity in R s and to understand the plant effects on the spatial variation in R s in different phenophases. The measurements were carried out on four slope orientations (i.e., windward, leeward, north-and south-facing) and three height positions on each slope (i.e., lower, upper, and top) across the phenophases of the dominant shrub species (Artemisia ordosica). Coefficient of variation (i.e., standard deviation/mean) of R s across the 11 microsites over our measurement period was 23.5 %. Soil respiration was highest on the leeward slope, and lowest on the windward slope. Over the measurement period, plant-related factors, rather than microhydrometeorological factors, affected the microtopographic variation in R s . During the flower-bearing phase, root biomass affected R s most, explaining 72 % of the total variation. During the leaf coloration-defoliation phase, soil nitrogen content affected R s the most, explaining 56 % of the total variation. Our findings highlight that spatial pattern in R s was dependent on plant distribution over a desert sand dune, and plantrelated factors largely regulated topographic variation in R s , and such regulations varied with plant phenology.

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“…Mineralisation is a process, which depends among other things on moisture conditions, temperature, abundance and activity of microorganisms. A temporary reduction in one of the parameters could result in a decrease in the rate of mineralisation, which could result in a periodic absence of differences between the combinations (Zhou et al 2013).…”

Section: Resultsmentioning

confidence: 99%

The effect of wheat straw quality on the rate of its mineralisation in soil

Tatuśko¹,

Kosicka-Dziechciarek²,

Pluta³

2017

Soil Science Annual

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Abstract:The aim of this study was to assess the effect of straw of two spring wheat cultivars, Tybalt -with the culm filled with pith, and Ostka Smolicka -with the hollow culm, added to light textured soil, on the mineralisation rate of organic matter. The incubation experiment was established under laboratory conditions and comprised three experimental combinations: K1 was soil with an addition of pith-filled culms, K2 -soil with an addition of straw with hollow culms, and K0 -the control with no straw added. In all the combinations, mineral fertilisation was applied in the form of urea. Incubation lasted for 14 months. At specific dates the amounts of CO 2 released within 24 h and pH values were recorded. The rate of organic matter mineralisation was expressed in mg CO 2 ⋅d -1 . Analyses showed that the addition of straw, both with pith-filled and hollow culms, significantly influenced the mineralisation of organic matter in the first months of incubation. Mineralisation was most intensive in the soil incubated with straw with hollow culms. The large amount of released carbon dioxide in the first days of incubation caused a decrease in pH both in the control soil and in soils with the addition of straw. The change in the soil reaction to its initial value was recorded at day 222 for the soil combination K0 and at day 250 of incubation in soils fertilised with straw.

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Predicting soil respiration using carbon stock in roots, litter and soil organic matter in forests of Loess Plateau in China

Cited by 78 publications

References 32 publications

Soil organic carbon sequestration potential of artificial and natural vegetation in the hilly regions of Loess Plateau

Soil organic carbon sequestration potential of artificial and natural vegetation in the hilly regions of Loess Plateau

Microtopographic variation in soil respiration and its controlling factors vary with plant phenophases in a desert–shrub ecosystem

The effect of wheat straw quality on the rate of its mineralisation in soil

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