Influence of stand type and stand age on soil carbon storage in China’s arid and semi-arid regions

Cao, Jianjun; Zhang, Xiaofang; Deo, Ravinesh C.; Gong, Yifan; Feng, Qi

doi:10.1016/j.landusepol.2018.07.002

Cited by 30 publications

(21 citation statements)

References 74 publications

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“…Compared to the results of a 2018 study by Cao et al [38] that examined SOC in forty-year-old apricot stands (8.06 g kg −1 ) and forty-year-old poplar stands (7.31 g kg −1 ) in the same study region (Figure 1), the crop rotations studied in the present research generated a lower SOC (Table 1). This is likely because crops are planted once a year in the study area with three to four months for fallow, resulting in a lower SOC accumulation as a result of fewer C inputs [2].…”

Section: Effects Of Different Rotation Patterns On Soc and Soil Phcontrasting

confidence: 77%

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A Comparative Study of Rotation Patterns on Soil Organic Carbon in China’s Arid and Semi-Arid Regions

et al. 2020

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The practice of crop rotation can significantly impact carbon sequestration potential. In exploring whether crop rotation has the potential to improve soil carbon sequestration in China’s Loess Plateau, soil organic carbon (SOC), soil water content (SWC), soil bulk density (SBD), and soil pH were compared across the 0–1.0 m soil profile, under four crop rotation patterns: lentil–wheat–maize, wheat–potato–lentil, wheat–maize–potato, and wheat–flax–pea. The lentil–wheat–maize and wheat–maize–potato rotations have been practiced over the past 20 years, while the wheat–potato–lentil and wheat–flax–pea rotations were established in 1978 (~40 year rotations). The results showed that under the 20-year lentil–wheat–maize rotation, SOC was not significantly different to that of the wheat–maize–potato rotation, at 6.81 g kg−1 and 6.91 g kg−1, respectively. However, under the lentil–wheat–maize rotation, SWC (9.81%) and SBD (1.19 Mg m−3) were significantly higher, but soil pH (8.42) was significantly lower than the same metrics under wheat–maize–potato rotation (8.43% and 1.16 Mg m−3, and 8.50, respectively). For the 40-year rotations, SWC (9.19%) and soil pH (8.41) under the wheat–potato–lentil were not significantly different to that of the wheat–flax–pea (8.87%, and 8.40, respectively). SOC (6.06 g kg−1) was significantly lower, but SBD (1.18 Mg m−3) was significantly higher under the wheat–potato–lentil than the wheat–flax–pea (7.29 g kg−1, and 1.15 Mg m−3, respectively) rotations. Soil carbon sequestration for the lentil–wheat–maize and wheat–potato–lentil rotations was co-influenced by SWC, SBD, and soil pH, while for wheat–maize–potato and wheat–flax–pea rotations, it was co-influenced by SWC and soil pH. The economic value of the four studied crops is, in order: potato > maize > wheat > flax. The results of the present study suggest that the lentil–wheat–maize and maize–flax–pea rotations are the most suitable patterns to optimize simultaneous economic and ecological development of the study area.

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Section: Effects Of Different Rotation Patterns On Soc and Soil Phcontrasting

confidence: 77%

“…SBD was then calculated as SBD (Mg m −3 ) [37] = dry weight volume . The pH of a 2:5 soil: water suspension was measured using a Sartorius PB-10 pH meter [37], and the SOC (g kg −1 ) was determined with wet dichromate oxidation using an air-dried homogenized subsample of 0.2 g soil and titration with FeSO 4 [38].…”

Section: Soil Analysismentioning

confidence: 99%

A Comparative Study of Rotation Patterns on Soil Organic Carbon in China’s Arid and Semi-Arid Regions

et al. 2020

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“…These values were lower than those reported for tropical dry deciduous forests (37.5 Mg ha −1 for 50 cm, Chhabra et al 2003 Gray et al 2015). The amount of SOC content is determined by the rate of organic matter inputs, accumulation, rate of mineralization in different organic C pools (Post and Kwon 2000), stand type, and stand age (Cao et al 2018). The overall contribution of SOC to total forest C stock was found to be 29-38%.…”

Section: Discussionmentioning

confidence: 57%

Assessment of above- and belowground carbon pools in a semi-arid forest ecosystem of Delhi, India

et al. 2019

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Background: Assessment of carbon pools in semi-arid forests of India is crucial in order to develop a better action plan for management of such ecosystems under global climate change and rapid urbanization. This study, therefore, aims to assess the above-and belowground carbon storage potential of a semi-arid forest ecosystem of Delhi. Methods: For the study, two forest sites were selected, i.e., north ridge (NRF) and central ridge (CRF). Aboveground tree biomass was estimated by using growing stock volume equations developed by Forest Survey of India and specific wood density. Understory biomass was determined by harvest sampling method. Belowground (root) biomass was determined by using a developed equation. For soil organic carbon (SOC), soil samples were collected at 0-10-cm and 10-20-cm depth and carbon content was estimated. Results: The present study estimated 90.51 Mg ha −1 biomass and 63.49 Mg C ha −1 carbon in the semi-arid forest of Delhi, India. The lower diameter classes showed highest tree density, i.e., 240 and 328 individuals ha −1 (11-20 cm), basal area, i.e., 8.7 (31-40 cm) and 6.08 m 2 ha −1 (11-20 cm), and biomass, i.e., 24.25 and 23.57 Mg ha −1 (11-20 cm) in NRF and CRF, respectively. Furthermore, a significant contribution of biomass (7.8 Mg ha −1 ) in DBH class 81-90 cm in NRF suggested the importance of mature trees in biomass and carbon storage. The forests were predominantly occupied by Prosopis juliflora (Sw.) DC which also showed the highest contribution to the (approximately 40%) tree biomass. Carbon allocation was maximum in aboveground (40-49%), followed by soil (29.93-37.7%), belowground or root (20-22%), and litter (0.27-0.59%). Conclusion: Our study suggested plant biomass and soils are the potential pools of carbon storage in these forests. Furthermore, carbon storage in tree biomass was found to be mainly influenced by tree density, basal area, and species diversity. Trees belonging to lower DBH classes are the major carbon sinks in these forests. In the study, native trees contributed to the significant amount of carbon stored in their biomass and soils. The estimated data is important in framing forest management plans and strategies aimed at enhancing carbon sequestration potential of semi-arid forest ecosystems of India.

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“…The effects of specific afforestation species on soil moisture, soil organic carbon storage, nitrogen, and phosphorus have been widely researched (e.g., [15,[48][49][50]). However, studies of their influence on ρ s and soil pH are relatively scarce.…”

Section: Effects Of the Stand Type On ρ S And Phmentioning

confidence: 99%

“…As mentioned above, apricots are the main income source for local residents; accordingly, compaction from their activities at the surface resulted in different pressures being applied to the top and sub soils, leading to a significant effect of soil depth on ρ s . Moreover, grazing in the apricot stands was also one of the causes of this phenomenon [50]. Under the cultivated treatment, compaction and plowing are the primary reasons for why soil depth has a significant influence on ρ s .…”

Section: The Reasons For Effects Of Soil Depth On ρ S and Ph In Diffementioning

confidence: 99%

Effects of Afforestation on Soil Bulk Density and pH in the Loess Plateau, China

Zhang

Adamowski

Deo

et al. 2018

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Sustainable land management requires a clear understanding of the changes in soil quality. In exploring whether afforestation has the potential to improve the soil quality in China’s Loess Plateau, soil bulk density ( ρ s ) and pH were compared under five treatments: three forested treatments (16-and 40-year-old apricot stands, and 40-year-old poplar stands), and individual abandoned and cultivated treatments, serving as the controls. Bulk density across the 0–1.0 m soil profile under the 16-year-old apricot treatment (1.12 Mg m−3) and 40-year-old poplar treatment (1.16 Mg m−3) were significantly smaller than their counterparts under the cultivated (1.20 Mg m−3) and abandoned treatments (1.23 Mg m−3). Soil pH of the cultivated treatment (8.46) was significantly lower than that of the abandoned treatment (8.51) or than that of any forested treatment. The ρ s and pH were both affected by stand age, with the ρ s and pH of the 40-year-old apricot treatment being 0.10 Mg m−3 and 0.05 units greater, respectively, than those of the 16-year-old apricot treatment. Treatment and soil depth appeared to interact to influence the ρ s , but this same interaction did not influence the soil pH. This study suggested that afforestation species and stand age should be taken into consideration to harvest maximum benefits from the afforestation efforts.

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Influence of stand type and stand age on soil carbon storage in China’s arid and semi-arid regions

Cited by 30 publications

References 74 publications

A Comparative Study of Rotation Patterns on Soil Organic Carbon in China’s Arid and Semi-Arid Regions

A Comparative Study of Rotation Patterns on Soil Organic Carbon in China’s Arid and Semi-Arid Regions

Assessment of above- and belowground carbon pools in a semi-arid forest ecosystem of Delhi, India

Effects of Afforestation on Soil Bulk Density and pH in the Loess Plateau, China

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