Dynamics of soil and root C stocks following afforestation of croplands with poplars in a semi-arid region in northeast China

Hu, Ya-Lin; Zeng, De‐Hui; Chang, Scott X.; Mao, Rong

doi:10.1007/s11104-012-1539-2

Cited by 19 publications

(10 citation statements)

References 35 publications

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“…We detected a positive and statistically significant relationship between tree basal area and soil C concentration, in which the youngest sites had a lower tree basal area and soil C concentration than the older stands (28 yr old and 60 yr old stands), which has also been reported by other studies (Hu et al 2013, García-Oliva et al 2014. These results can be explained by the high levels of tree mortality that occur during high-severity forest fires, depleting litter inputs to the mineral soil.…”

Section: Top Mineral Soil C N and P Contentssupporting

confidence: 86%

“…Additionally, forest canopy opening promotes litter decomposition by raising organic layer temperatures (Smithwick et al 2005, Nave et al 2011. The positive relationship between organic layer mass and tree basal area suggests that leaf litter production is lower in the youngest sites (8 yr old stands), and that the input of new organic matter to the soil is not at an equilibrium between litterfall production and litter decomposition, which has been confirmed in previous studies (Buschiazzo et al 2004, Hu et al 2013.…”

Section: Discussionsupporting

confidence: 71%

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Soil Carbon and Nutrient Recovery after High-Severity Wildfire in Mexico

et al. 2015

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Fire severity can increase above historical levels due to factors such as human-derived fire suppression and climate change. Studies about the effects of high-severity fires on soil carbon and nutrients in pine forest at tropical latitudes are still rare. We analyzed the changes in carbon (C), nitrogen (N), and phosphorus (P) contents in the organic layer and the top mineral soil layer in a post-fire chronosequence of Pinus douglasiana Martínez-dominated forest stands in central-western Mexico 8 yr, 28 yr, and 60 yr following a high-severity fire. We found that fire significantly affected the total C, N, and P contents in the organic layer, explained mainly by mass losses. We did not detect differences in C, N, and P contents (Mg ha-1) in the mineral soil, but C and N concentrations (mg g-1

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Section: Top Mineral Soil C N and P Contentssupporting

confidence: 86%

Section: Discussionsupporting

confidence: 71%

Soil Carbon and Nutrient Recovery after High-Severity Wildfire in Mexico

et al. 2015

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“…The relatively high SOC stocks were driven mainly by relatively high organic matter inputs (mainly litter and fine root decomposition as well as root rhizodeposition) and relatively low CO 2 emissions from SOC mineralization (Cardinael et al, ). Hu, Zeng, Chang, and Mao () reported that, compared with croplands, plantations obtained larger amounts of dead and decomposing litter input, whereas croplands suffered from repeated biomass removal. Additionally, greater amounts of soil microorganisms and fauna as well as increased fauna diversity accelerate organic matter turnover efficiency, and deep‐rooted perennial trees in agroforestry systems are crucial factors in SOC accumulation (Don, Schumacher, & Freibauer, ; Zhao, Zhang, Wu, Li, & Zhao, ).…”

Section: Discussionmentioning

confidence: 99%

Afforestation and agroforestry enhance soil nutrient status and carbon sequestration capacity in eastern China

Guo

Wang

et al. 2019

Land Degrad Dev

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Afforestation and agroforestry both sequester atmospheric carbon (C) and store C in the soil. However, the response of soil nutrients and soil organic carbon (SOC) to these practices has not been fully examined, especially in deep soil layers. We therefore investigated the effects of afforestation and agroforestry on the nutrient contents and organic carbon (OC) stocks within a 100-cm depth in eastern China. The soil nutrient contents and stoichiometry as well as the SOC contents and stocks exhibited different vertical patterns and varied among the five planting systems.The total nitrogen (TN), total phosphorus (TP), and SOC contents decreased dramatically at a 20-cm depth, and the total potassium (TK) content exhibited a different pattern. Compared with adjacent croplands and nurseries, the forest plantation and agroforestry systems had higher SOC stocks, ranging from 42.9 to 111.6 t·hm −2 in the whole soil profile. The SOC distribution among the depth gradient varied among planting systems, and the topsoil SOC stocks played crucial roles in total SOC storage within a depth of 100 cm in the cropland and nursery systems. The soil pH and bulk density (BD) were negatively correlated with the SOC content, and a significant positive linear relationship occurred between the TN and SOC contents and between the TP and SOC contents. We recommend that combinations of nitrogen (N) and phosphorus (P) fertilizers would benefit SOC storage and improve stabilization in agroforestry and plantation systems.

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“…Fire severity affects stand structure of forest and soil recovery, and its effects may last many years after a fire (Dzwonko et al, 2015;Miquelajauregui et al, 2016). In this study, litter mass increased with increasing recovery time after fire, and the linear regressions between litter mass and SOC, TBA and SOC, and litter mass and SOC were positive, which may indicate that the input of organic matter is less than litter production and decomposition (Hu et al, 2013). These findings suggested that fire severity had long-term impacts on litter mass and TBA and TBA impacted SOC through litter mass losses.…”

Section: Soil Property and Stand Structurementioning

confidence: 53%

Effects of recovery time after fire and fire severity on stand structure and soil of larch forest in the Kanas National Nature Reserve, Northwest China

Liu

Cun-de

2019

J. Arid Land

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Forest recovery may be influenced by several factors, of which fire is the most critical. However, moderate-and long-term effects of fire on forest recovery are less researched in Northwest China. Thus, the effects of different forest recovery time after fire (1917 (served as the control), 1974, 1983 and 1995) and fire severities (low, moderate and high) on larch (Larix sibirica Ledeb.) forest were investigated in the Kanas National Nature Reserve (KNNR), Northwest China in 2017. This paper analyzed post-fire changes in stand density, total basal area (TBA), litter mass, soil organic carbon (SOC) and soil nutrients (total nitrogen, total phosphorus and total potassium) with one-way analyses of variance. Results indicate that litter mass, TBA, SOC and soil nutrients increased with increasing recovery time after fire and decreasing fire severity, while the stand density showed an opposite response. The effects of fire disturbance on SOC and soil nutrients decreased with increasing soil depth. Moreover, we found that the time of more than 43 a is needed to recover the litter mass, TBA, SOC and soil nutrients to the pre-fire level. In conclusion, high-severity fire caused the greatest variations in stand structure and soil of larch forest, and low-severity fire was more advantageous for post-fire forest stand structure and soil recovery in the KNNR. Therefore, low-severity fire can be an efficient management mean through reducing the accumulation of forest floor fuel of post-fire forests in the KNNR, Northwest China.

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Dynamics of soil and root C stocks following afforestation of croplands with poplars in a semi-arid region in northeast China

Cited by 19 publications

References 35 publications

Soil Carbon and Nutrient Recovery after High-Severity Wildfire in Mexico

Soil Carbon and Nutrient Recovery after High-Severity Wildfire in Mexico

Afforestation and agroforestry enhance soil nutrient status and carbon sequestration capacity in eastern China

Effects of recovery time after fire and fire severity on stand structure and soil of larch forest in the Kanas National Nature Reserve, Northwest China

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