Soil organic carbon sequestration following a secondary succession of agricultural abandonment in the karst region of southwest China

Liu, Man; Han, Guilin; Zhang, Qian

doi:10.1007/s12665-022-10606-3

Cited by 6 publications

(3 citation statements)

References 80 publications

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“…Soil environmental risks in Luobei county and Yilan county have been basically controlled, and the trend of aggravation of soil pollution has been initially curbed. The safe utilization rate of contaminated arable land has been stabilized at more than 90 percent, and the soil environmental condition of agricultural land is generally stable [38]. Meanwhile, the government's policies related to waste sorting can help farmers in these two places better understand the relevant knowledge and benefits of waste sorting, and also greatly promote the waste sorting behavior of farmers in these two places.…”

Section: Questionnaire Designmentioning

confidence: 99%

Research on the Influencing Factors of Farmers’ Intention to Sort Waste Based on TPB

Wang,

Zhang,

Xin

2024

Pol. J. Environ. Stud.

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Improving the efficiency of waste sorting plays a critical role in improving resource utilization efficiency and accelerating green and low-carbon development. Based on the theory of planned behavior (TPB), this study uses structural equation model (SEM) to study the factors that influence 650 farmers' intention to sort waste from the psychological angle of the farmers in Yilan county of Harbin city and Luobei county of Hegang city of Heilongjiang province. Notably, the study confirmed that attitude (ATT), subjective norms (SN) and perceived behavioral control (PBC) can affect farmers' waste sorting intention (INT) significantly and perceived behavioral control is the most important influencing factor of farmers' intention in waste sorting.Meanwhile, there is a positive correlation between the three factors of farmer's attitude, subjective norm and perceived behavioral control towards waste sorting.

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Section: Questionnaire Designmentioning

confidence: 99%

Research on the Influencing Factors of Farmers’ Intention to Sort Waste Based on TPB

Wang,

Zhang,

Xin

2024

Pol. J. Environ. Stud.

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“…The carbon pool of agricultural ecosystems forms an integral part of the carbon pool of terrestrial ecosystems. The carbon dioxide (CO 2 ) released from soil respiration can influence the carbon balance of ecosystems, identifying carbon sequestration in agricultural soils as a critical way to reduce CO 2 emissions (Zhang et al, 2020;Han et al, 2021;Liu et al, 2022). The active component of soil organic carbon (SOC) can reflect short-term changes in soil quality and plays a crucial role in farmland soil material cycling (Luo et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Soil bacterial community characteristics and its effect on organic carbon under different fertilization treatments

Kong,

Zhang,

Yuan

et al. 2024

Front. Microbiol.

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IntroductionBy implementing small-scale and efficient fertilization techniques, it is possible to enhance the activity of microorganisms, thereby improving soil carbon sequestration and ecological value in agriculture.MethodsIn this study, field experiments were conducted using various types of fertilizers: organic fertilizer, microbial fungal fertilizer, composite fertilizer, and an unfertilized control (CK). Additionally, different dosages of compound fertilizers were applied, including 0.5 times compound fertilizers, constant compound fertilizers, 1.5 times compound fertilizers and CK. Using advanced technologies such as Illumina MiSeq high-throughput sequencing, PICRUSt2 prediction, Anosim analysis, redundancy analysis, canonical correlation analysis, and correlation matrix, soil organic carbon (SOC) content and components, bacterial diversity, metabolic functions, and interaction mechanisms were examined in different fields.Results and DiscussionThe results showed pronounced effects of various fertilization modes on SOC and the bacterial community, particularly in the topsoil layer (0–20 cm). Organic fertilizer treatments increased the richness and diversity of bacterial communities in the soil. However, conventional doses and excessive application of compound fertilizers reduced the diversity of soil bacterial communities and SOC content. Additionally, different fertilization treatments led to an increase in easily oxidizable organic carbon (EOC) contents. Interestingly, the relationship between SOC components and soil bacteria exhibited inconsistency. EOC was positively correlated with the bacterial diversity index. Additionally, Chloroflexi exhibited a negative correlation with both SOC and its components. The influence of metabolismon primary metabolic functions on the content of SOC components in the soil was more notable. It included seven types of tertiary functional metabolic pathways significantly correlated with SOC components (p < 0.05).Purpose and SignificanceThese findings enhance the understanding of the relative abundance of bacterial communities, particularly those related to the carbon cycle, by adjusting agricultural fertilization patterns. This adjustment serves as a reference for enhancing carbon sinks and reducing emissions in agricultural soils.

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“…Plant growth accelerates the movement and transformation of substances in the soil [13], increases the cation exchange ability in the soil, reduces internal stress in the soil, and prevents the disintegration of soil aggregates. Plant growth also promotes the redistribution of inorganic carbon in the soil and increases the amount of inorganic carbon in the deep layer [14]. Therefore, research on changes in soil quality after vegetation restoration is urgently needed to understand the mechanisms underlying forest restoration in a more comprehensive manner.…”

Section: Introductionmentioning

confidence: 99%

Response of Soil Aggregate Composition and Stability to Secondary Succession and Plantation of a Broad-Leaved Korean Pine Forest after Clear-Cutting and Its Causes

Wang,

Chen,

et al. 2023

Forests

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The composition and stability of soil aggregates are important characteristics for evaluating soil health. The objective of this study was to explore the effects of different restoration modes and secondary succession sequences of Korean pine on the stability of forest soil aggregates after clear cutting and their causes. The stability and composition of soil aggregates in 0–10 cm, 10–20 cm, and 20–40 cm were analyzed in four natural forests in the secondary succession sequence and a Pinus koraiensis plantation in the clear-cutting area of Liangshui National Nature Reserve, and the effects of forest community characteristics and cementing materials on these aggregates were explored. With the advancement of succession, the large soil water-stable aggregates and mechanical aggregates increased, and the stability increased. From the pioneer community to the top community, the proportion of macroaggregates in the soil mechanical aggregates in the 20–40 cm soil layer increased by 36%, while that in the water-stable aggregates in the 10–20 cm soil layer increased by 19%. Compared with plantation, the stability of soil aggregates in natural forests with a similar age was stronger. Water-stable aggregates were negatively correlated with bulk density, density, and porosity, and positively correlated with organic-matter-related cement. The volume of the dominant tree, litter yield, tree species diversity, biomass of various tree species, and litter biomass in the undecomposed layer were the key indicators affecting the stability of aggregates. In terms of restoration measures, natural restoration is better than plantations with a single tree species. In addition, succession makes forest soil aggregates more stable. The change of dominant tree species leads to changes in soil aggregate stability, and the effect of organic-related cementing material was stronger than that of iron oxide.

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Soil organic carbon sequestration following a secondary succession of agricultural abandonment in the karst region of southwest China

Cited by 6 publications

References 80 publications

Research on the Influencing Factors of Farmers’ Intention to Sort Waste Based on TPB

Research on the Influencing Factors of Farmers’ Intention to Sort Waste Based on TPB

Soil bacterial community characteristics and its effect on organic carbon under different fertilization treatments

Response of Soil Aggregate Composition and Stability to Secondary Succession and Plantation of a Broad-Leaved Korean Pine Forest after Clear-Cutting and Its Causes

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