Greater nitrous and nitric oxide emissions from the soil between rows than under the canopy in subtropical tea plantations

Han, Zhaoqiang; Wang, Jinyang; Xu, Pinshang; Sun, Zhirong; Ji, Cheng; Liu, Shuqing; Wu, Shuang; Liu, Shuwei

doi:10.1016/j.geoderma.2021.115105

Cited by 18 publications

(6 citation statements)

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“…On account of the "fertility islands" effects that the soil fertility gradually decreased from the inside to the outside under the tree canopy (San Emeterio et al, 2021). Nevertheless, our research revealed that even the point between trees (P50), which was weakly affected by fertilization and tree growth, can somehow enhance the soil nutrients availability (Han et al, 2021). This further corroborated that the C. camphora tree planting can improve the soil fertility.…”

Section: Effects Of Cinnamomum Camphora Coppice Planting On Soil Fert...supporting

confidence: 68%

Effects of Cinnamomum camphora coppice planting on soil fertility, microbial community structure and enzyme activity in subtropical China

et al. 2023

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Cinnamomum camphora (C. camphora) is a broad-leaved evergreen tree cultivated in subtropical China. Currently, the use of C. camphora clonal cuttings for coppice management has become popular. However, the effects of C. camphora coppice planting on soil abiotic and biotic variances remained unclear. In this study, we collected soil from three points in the seven-year C. camphora coppice planting land: under the tree canopy (P15), between trees (P50), and abandoned land (Control) to investigate the effects of C. camphora coppice planting on soil fertility, microbial community structure and enzyme activity. The results revealed that C. camphora coppice planting significantly increased soil fertility in the point under the tree canopy (P15) and point between trees (P50), and P15 had more significant effects than P50. Meanwhile, in P15 and P50, soil bacterial, fungal alpha-diversity were improved and microbial community structures were also changed. And the changes of soil organic carbon and total nitrogen promote the transformation of soil bacterial, fungal community structures, respectively. In addition, C. camphora coppice planting significantly (p < 0.05) increased soil urease (UE), polyphenol oxidase, and peroxidase activities, while significantly decreased soil ACP activity. This study demonstrated that the C. camphora coppice planting could improve soil fertility in subtropical China, which promoted the transformation of soil microbial community from oligotrophs (K-strategist) to copiotrophs (r-strategist). Thus, this work can provide a theoretical basis for soil nutrient variation and productive management of C. camphora coppice plantation in subtropical China.

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Section: Effects Of Cinnamomum Camphora Coppice Planting On Soil Fert...supporting

confidence: 68%

Effects of Cinnamomum camphora coppice planting on soil fertility, microbial community structure and enzyme activity in subtropical China

et al. 2023

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“…Field plots were arranged in a randomized complete block design, and the size of each field plot is 18 m 2 . The distance between the canopies was approximately 0.3 m, and the breadth of the canopy was about 0.8 m (Han, Wang, Xu, Sun, et al, 2021). According to the local practice, N fertilizer was applied at a rate of 450 kg N ha −1 yr −1 , divided into basal fertilizer and top‐dressing.…”

Section: Methodsmentioning

confidence: 99%

Microbial diversity and the abundance of keystone species drive the response of soil multifunctionality to organic substitution and biochar amendment in a tea plantation

Han

et al. 2022

GCB Bioenergy

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High nitrogen (N) fertilizer inputs accelerate soil acidification and degradation in tea plantations, thus posing a threat to soil microbial diversity, species composition, and ecosystem service functions. The effects of organic fertilizer and biochar applications on improving soil fertility have been extensively studied on cropland; however, little is known about their effectiveness in promoting soil multifunctionality on rapidly expanding acidic soils in tea plantations. In this study, we conducted a two‐year field experiment in a subtropical tea plantation to investigate the effects of organic fertilizer substitution and biochar amendment on soil microbial communities and multifunctionality. The results showed that soil multifunctionality was enhanced in plots amended with organic fertilizer and biochar. Soil multifunctionality was significantly and positively correlated with alpha‐diversity of bacteria but not fungi. We also found that organic fertilizer substitution and biochar amendment improved soil multifunctionality by altering the abundance of keystone species. The abundance of keystone species classified as module hubs in the bacterial co‐occurrence network contributed significantly and positively to soil multifunctionality. In contrast, the keystone species categorized as module hubs in the fungal co‐occurrence network negatively affected soil multifunctionality. Soil pH was a key driver of soil microbial community composition, indicating that the increase in soil pH under organic fertilizer and biochar amendment had a crucial role in biological processes. These results suggest that organic substitution and biochar amendment are beneficial in preventing soil degradation and maintaining soil multifunctionality in subtropical tea plantations.

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“…A high N surplus usually means an increased potential loss of N from agricultural soils to the environment, leading to a lower N use efficiency. A growing body of experimental evidence indicates that the intensities of gaseous reactive N emissions, especially N2O and NO, from soils grown in OVT are generally greater than from cereal cropping systems [17][18][19][20][21][22][23][24] . Therefore, a better understanding of the characteristics of gaseous reactive N emissions from intensive cash crop cultivation and its contribution to the agricultural sector is an essential step toward the green development of agriculture.…”

Section: Introductionmentioning

confidence: 99%

Gaseous Reactive Nitrogen Losses From Orchards, Vegetables and Tea Plantations

2022

Front. Agr. Sci. Eng.

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Greater nitrous and nitric oxide emissions from the soil between rows than under the canopy in subtropical tea plantations

Cited by 18 publications

References 50 publications

Effects of Cinnamomum camphora coppice planting on soil fertility, microbial community structure and enzyme activity in subtropical China

Effects of Cinnamomum camphora coppice planting on soil fertility, microbial community structure and enzyme activity in subtropical China

Microbial diversity and the abundance of keystone species drive the response of soil multifunctionality to organic substitution and biochar amendment in a tea plantation

Gaseous Reactive Nitrogen Losses From Orchards, Vegetables and Tea Plantations

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