Effect of sand-stabilizing shrubs on soil respiration in a temperate desert

Zhang, Zhishan; Li, Xinrong; Nowak, Robert S.; Wu, Pan; Gao, Yanhong; Zhao, Yang; Huang, Lei; Hu, Yigang; Jia, Ruibao

doi:10.1007/s11104-012-1465-3

Cited by 41 publications

(21 citation statements)

References 41 publications

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“…A mass of CO 2 was released into the soil following shrub and tree plantation in desert, mainly due to the decomposition of the increased organic matter (Zhang, Li, et al, ). In general, an increase in the soil CO 2 concentration would lead to the production of HCO 3 − .…”

Section: Discussionmentioning

confidence: 99%

Effects of vegetation rehabilitation on soil organic and inorganic carbon stocks in the Mu Us Desert, northwest China

et al. 2017

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In arid and semiarid areas, the importance of soil inorganic carbon (SIC) is at least as high as that of soil organic carbon (SOC) in affecting the regional carbon budget following vegetation rehabilitation. However, variations in SIC have been uncertain, and few studies have analyzed the interactions between the SOC and SIC pools. We measured SIC, SOC, δ13C‐SIC, and δ13C‐SOC after planting Mongolian pine (MP) and Artemisia ordosica (AO) on shifting sand land (SL) over 10 years in the Mu Us Desert, northwest China. The results showed that, compared to SL, SIC stocks at 0–100 cm in MP and AO lands significantly increased by 12.6 and 25.8 Mg ha−1, respectively; SOC stocks in MP and AO lands significantly increased by 24.0 and 38.4 Mg ha−1, respectively. Both δ13C‐SIC and δ13C‐SOC in the 2 plantation lands were significantly lower than those in SL were. All 315 samples exhibited a negatively linear relationship between SIC content and δ13C‐SIC (R2 = .70, p < .01) and showed positively linear relationships between SIC content and SOC content (R2 = .69, p < .01) and between δ13C‐SIC and δ13C‐SOC (R2 = .61, p < .01). The results demonstrated that vegetation rehabilitation on SL has a high potential to sequester SIC and SOC in semiarid deserts. The reduction in δ13C‐SIC and the relationship of SIC with δ13C‐SIC following vegetation rehabilitation suggested that SIC sequestration is likely caused by the formation of pedogenic inorganic carbon. The relationships between SIC and SOC and between δ13C‐SIC and δ13C‐SOC implied that the pedogenic inorganic carbon formation may be closely related to the SOC accumulation.

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Section: Discussionmentioning

confidence: 99%

Effects of vegetation rehabilitation on soil organic and inorganic carbon stocks in the Mu Us Desert, northwest China

et al. 2017

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“…In comparison to coarse‐textured soils, fine‐textured soils provided more space to adsorb substrate, microbes, and enzymes and thus had higher Q 10 [ Knorr et al ., ; Xu et al ., ; Balogh et al ., ; Zhang et al ., ]. Besides, root respiration seemed to be more sensitive to changes in SWC than to temperature in water‐limited ecosystems [ Deforest et al ., ; Cable et al ., ; Zhang et al ., ], which was the main reason Q 10 for R T relate significantly to soil texture.…”

Section: Discussionmentioning

confidence: 99%

“…However, the effect of SWC on Q 10 was not significant in our incubated experiment, reflecting that water constraints of substrate supply are not true for R M [ Knorr et al ., ; Xu et al ., ; Balogh et al ., ]. Therefore, it was likely that root respiration determines the behavior of Q 10 in R T , because Q 10 of roots respiration is higher than that of mineral soil [ Xu and Qi , ] and roots have high sensitivity to SWC variation in a water‐limited ecosystem [ Deforest et al ., ; Cable et al ., ; Zhang et al ., ]. On the other hand, high Q 10 for R T at high SWC levels (e.g., W4 and W5) is most possibly attributed to high carbon substrate availability, resulting from litterfall of vascular plants incorporated in soil under high SWC levels.…”

Section: Discussionmentioning

confidence: 99%

“…The reason maybe that the T a probe housed in the soil chamber was very close to the soil surface and T a reflects the true “functional” aspect of BSCs temperature. Many studies show that BSCs contribute more to soil CO 2 efflux than do microbes and roots in water‐limited ecosystems [e.g., Bowling et al ., ; Castillo‐Monroy et al ., ; Zhang et al ., ; Zhao et al ., ].…”

Section: Methodsmentioning

confidence: 99%

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Soil respiration sensitivities to water and temperature in a revegetated desert

Zhang

Dong²,

et al. 2015

JGR Biogeosciences

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Soil respiration in water-limited ecosystems is affected intricately by soil water content (SWC), temperature, and soil properties. Eight sites on sand-fixed dunes that revegetated in different years since 1950s, with several topographical positions and various biological soil crusts (BSCs) and soil properties, were selected, as well as a moving sand dune (MSD) and a reference steppe in the Tengger Desert of China. Intact soil samples of 20 cm in depth were taken and incubated randomly at 12 levels of SWC (0 to 0.4 m 3 m À3 ) and at 9 levels of temperature (5 to 45°C) in a growth chamber; additionally, cryptogamic and microbial respirations (R M ) were measured. Total soil respiration (R T , including cryptogamic, microbial, and root respiration) was measured for 2 years at the MSD and five sites of sand-fixed dunes. The relationship between R M and SWC under the optimal SWC condition (0.25 m 3 m À3 ) is linear, as is the entire range of R T and SWC. The slope of linear function describes sensitivity of soil respiration to water (SRW) and reflects to soil water availability, which is related significantly to soil physical properties, BSCs, and soil chemical properties, in decreasing importance. Inversely, Q 10 for R M is related significantly to abovementioned factors in increasing importance. However, Q 10 for R T and respiration rate at 20°C are related significantly to soil texture and depth of BSCs and subsoil only. In conclusion, through affecting SRW, soil physical properties produce significant influences on soil respiration, especially for R T . This indicates that a definition of the biophysical meaning of SRW is necessary, considering the water-limited and coarse-textured soil in most desert ecosystems.

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“…Soil respiration rate (Rs), the flux of carbon dioxide (CO 2 ) from the soil to the atmosphere, is probably the least understood component of the terrestrial carbon cycle, and it may change the carbon sequestration potential of the soil (Raich and Tufekciogul 2000;Rey et al 2011;Talmon et al 2011). However, information is lacking on how Rs changes during the succession of the plant-soil system after dune stabilization (e.g., Zhang et al 2013) and how it affects the carbon sequestration potential of the desert ecosystem.…”

Section: Introductionmentioning

confidence: 99%

Evolution of soil respiration depends on biological soil crusts across a 50-year chronosequence of desert revegetation

Zhang

Zhao

Dong

et al. 2016

Soil Science and Plant Nutrition

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Despite intensive study in recent decades, soil respiration rate (Rs) and its evolution accompanying vegetation succession remain perplexing. Using a 50-year chronosequence of sand-fixing revegetation in the Tengger Desert of China, we took intact soil columns of 20 cm in depth, incubated them at 12 levels of soil water content (0-0.4 m 3 m −3) and at nine temperatures (5-45°C) in a growth chamber, and measured Rs. The results showed that Rs increased rapidly 15 to 20 years following revegetation but stabilized after 25 years. Rs for soils covered with moss crusts were markedly higher than those covered with algal crusts. Further, Rs correlated significantly with sand content (negatively) and fine particle contents (positively), and increased exponentially with increased soil organic matter (SOM) and total nitrogen (TN) contents. Soil texture had a stronger influence on Rs than did SOM and TN. Also, Rs increased linearly with increased coverage and depth of biological soil crusts, which had a more pronounced influence on Rs than did soil physicochemical properties. Our results suggest that the capacity of carbon sequestration likely increases during the 50-year period after revegetation because the linear increase in SOM outweighs the limited sigmoidal increase in Rs.

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Effect of sand-stabilizing shrubs on soil respiration in a temperate desert

Cited by 41 publications

References 41 publications

Effects of vegetation rehabilitation on soil organic and inorganic carbon stocks in the Mu Us Desert, northwest China

Effects of vegetation rehabilitation on soil organic and inorganic carbon stocks in the Mu Us Desert, northwest China

Soil respiration sensitivities to water and temperature in a revegetated desert

Evolution of soil respiration depends on biological soil crusts across a 50-year chronosequence of desert revegetation

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