Effects of long-term organic matter application on soil carbon accumulation and nitrogen use efficiency in a double-cropping rice field

Tang, Haiming; Cheng, Kaikai; Shi, Lihong; Li, Chao; Wen, Li; Li, Weiyan; Sun, Mei; Sun, Geng; Long, Zedong

doi:10.1016/j.envres.2022.113700

Cited by 21 publications

(12 citation statements)

References 24 publications

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“…According to Guo et al, long-term organic fertilizer treatments strongly enhanced CO 2 emissions and potential mineralized carbon, and these changes in soil properties can be attributed to the variation in microbial communities [ 74 ]. Long-term fertilization tracking can also increase soil carbon sequestration in paddy fields and improve nitrogen utilization efficiency in rice [ 75 ]. Generally, Caragana microphylla , Haloxylon ammodendron , Caragana korshinskii , Calligonum mongolicunl, etc.…”

Section: Discussionmentioning

confidence: 99%

Long-Term Benefits of Cenchrus fungigraminus Residual Roots Improved the Quality and Microbial Diversity of Rhizosphere Sandy Soil through Cellulose Degradation in the Ulan Buh Desert, Northwest China

Li,

Zhang,

et al. 2024

Plants

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Long-term plant residue retention can effectively replenish soil quality and fertility. In this study, we collected rhizosphere soil from the residual roots of annual Cenchrus fungigraminus in the Ulan Buh Desert over the past 10 years. The area, depth, and length of these roots decreased over time. The cellulose content of the residual roots was significantly higher in the later 5 years (2018–2022) than the former 5 years (2013–2017), reaching its highest value in 2021. The lignin content of the residual roots did not differ across samples except in 2015 and reached its highest level in 2021. The total sugar of the residual roots in 2022 was 227.88 ± 30.69 mg·g−1, which was significantly higher than that in other years. Compared to the original sandy soil, the soil organic matter and soil microbial biomass carbon (SMBC) contents were 2.17–2.41 times and 31.52–35.58% higher in the later 3 years (2020–2022) and reached the highest values in 2020. The residual roots also significantly enhanced the soil carbon stocks from 2018–2022. Soil dehydrogenase, nitrogenase, and N-acetyl-β-D-glucosidase (S-NAG) were significantly affected from 2019–2022. The rhizosphere soil community richness and diversity of the bacterial and fungal communities significantly decreased with the duration of the residual roots in the sandy soil, and there was a significant difference for 10 years. Streptomyces, Bacillus, and Sphigomonas were the representative bacteria in the residual root rhizosphere soil, while Agaricales and Panaeolus were the enriched fungal genera. The distance-based redundancy analysis and partial least square path model results showed that the duration of residual roots in the sandy soil, S-NAG, and SMBC were the primary environmental characteristics that shaped the microbial community. These insights provide new ideas on how to foster the exploration of the use of annual herbaceous plants for sandy soil improvement in the future.

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Section: Discussionmentioning

confidence: 99%

Long-Term Benefits of Cenchrus fungigraminus Residual Roots Improved the Quality and Microbial Diversity of Rhizosphere Sandy Soil through Cellulose Degradation in the Ulan Buh Desert, Northwest China

Li,

Zhang,

et al. 2024

Plants

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“…This increase may be due to various agricultural management strategies that have been implemented to enhance SOC sequestration (Ding et al, 2012;Kan et al, 2022;Liu et al, 2020Liu et al, , 2021Muñoz-Romero et al, 2017;Pan et al, 2010). For example, no-till or minimum tillage, the return of straw residue return, and strategic fertilization have been demonstrated to effectively increase total SOC storage in paddy fields (Liu et al, 2021;Tang et al, 2022;Tian et al, 2015;Wang et al, 2015;Zhao et al, 2018). For more details, see Table S2.…”

Section: Increase In Soc Pools In Paddy Fieldsmentioning

confidence: 99%

“…On this basis, they further estimated that the stock of SOC in China's paddy topsoil (20 cm) could be ultimately increased to ~3.0 Pg C after well‐designed management and conservation practices (Pan et al., 2004). While there has been a significant effort to increase SOC in paddy soils (Tang et al., 2022; Tian et al., 2015; Wang et al., 2015; Zhao et al., 2018), future studies need to understand the mechanisms of SOC sequestration, and whether the agroecological region impacts both SOC content and the indeed mechanisms which drive its storage.…”

Section: Introductionmentioning

confidence: 99%

Significant accrual of soil organic carbon through long‐term rice cultivation in paddy fields in China

Yang,

Song,

Van Zwieten

et al. 2024

Global Change Biology

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Paddy fields serve as significant reservoirs of soil organic carbon (SOC) and their potential for terrestrial carbon (C) sequestration is closely associated with changes in SOC pools. However, there has been a dearth of comprehensive studies quantifying changes in SOC pools following extended periods of rice cultivation across a broad geographical scale. Using 104 rice paddy sampling sites that have been in continuous cultivation since the 1980s across China, we studied the changes in topsoil (0–20 cm) labile organic C (LOC I), semi‐labile organic C (LOC II), recalcitrant organic C (ROC), and total SOC. We found a substantial increase in both the content (48%) and density (39%) of total SOC within China's paddy fields between the 1980s to the 2010s. Intriguingly, the rate of increase in content and density of ROC exceeded that of LOC (I and II). Using a structural equation model, we revealed that changes in the content and density of total SOC were mainly driven by corresponding shifts in ROC, which are influenced both directly and indirectly by climatic and soil physicochemical factors; in particular temperature, precipitation, phosphorous (P) and clay content. We also showed that the δ13CLOC were greater than δ13CROC, independent of the rice cropping region, and that there was a significant positive correlation between δ13CSOC and δ13Cstraw. The δ13CLOC and δ13CSOC showed significantly negative correlation with soil total Si, suggesting that soil Si plays a part in the allocation of C into different SOC pools, and its turnover or stabilization. Our study underscores that the global C sequestration of the paddy fields mainly stems from the substantial increase in ROC pool.

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“…Incorporating exogenous organic matter is effective in elevating SOC levels, enhancing turnover capacity, maintaining and increasing soil organic matter levels, and improving soil fertility [30]. Research emphasizes a substantial increase in SOC content after prolonged organic fertilizer application or combined organic and inorganic fertilizer use [31]. Liu et al [32] reported positive linear correlations between long-term organic fertilizer application and increased total organic carbon content in farmlands.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Various Long-Term Fertilizer Applications on Soil Carbon Fractions in a Winter Wheat Monoculture Area

Yang,

Hu,

Chang

et al. 2023

Agronomy

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The Loess Plateau in China has long grappled with issues such as chronic soil erosion, poor soil structure, and diminished organic matter. Soil organic carbon plays a crucial role in enhancing soil fertility, and fertilization is a key tool that influences it. In a comprehensive field experiment, we examined five fertilization methods: no fertilization (CK); traditional fertilization used by local farmers (FP); nutrient-balanced fertilization with nitrogen, phosphorus, and potassium (OF); chemical fertilizers used in conjunction with organic fertilizers (OFM); and chemical fertilizers paired with bio-organic fertilizers (OFB). Our findings revealed that the OFM and OFB treatments were the most effective, explaining 84.35% and 81.26% of the variation in soil carbon sequestration, respectively. Further, the OF, OFM, and OFB treatments demonstrated superior effectiveness compared with the FP treatment in enhancing the soil carbon fractions. However, these fertilization patterns did not significantly alter the active-to-inert carbon ratio of the soil. OF, OFM, and OFB treatments enhanced the stability of soil carbon pools more than FP treatment. In structural equation modeling, factors such as microbial biomass nitrogen and phosphorus, soil pH, and β-N-acetyl glucosidase indirectly exhibited a limiting effect on the carbon pool stability index (CPSI), while β-glucosidase displayed an indirect positive correlation with the carbon fractions. In contrast, dissolved organic carbon, low-molecular-weight organic carbon, high-molecular-weight organic carbon, and crop yield demonstrated direct positive correlations with the CPSI. Consequently, both a balanced application of chemical fertilizers and the combination of organic and chemical fertilizers were effective in enhancing and sustaining the soil’s organic carbon content, thereby contributing to soil fertility stability. To this end, this study can inform the efficient selection and use of fertilizers, improving crop yield and soil carbon content.

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Effects of long-term organic matter application on soil carbon accumulation and nitrogen use efficiency in a double-cropping rice field

Cited by 21 publications

References 24 publications

Long-Term Benefits of Cenchrus fungigraminus Residual Roots Improved the Quality and Microbial Diversity of Rhizosphere Sandy Soil through Cellulose Degradation in the Ulan Buh Desert, Northwest China

Long-Term Benefits of Cenchrus fungigraminus Residual Roots Improved the Quality and Microbial Diversity of Rhizosphere Sandy Soil through Cellulose Degradation in the Ulan Buh Desert, Northwest China

Significant accrual of soil organic carbon through long‐term rice cultivation in paddy fields in China

The Effects of Various Long-Term Fertilizer Applications on Soil Carbon Fractions in a Winter Wheat Monoculture Area

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