Long-term cover cropping seasonally affects soil microbial carbon metabolism in an apple orchard

Yang, Jianfeng; Zhang, Tairan; Zhang, Rongqin; Huang, Qianqian; Li, Huike

doi:10.1080/21655979.2019.1622991

Cited by 20 publications

(8 citation statements)

References 25 publications

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“…The difference of diversity indexes may be related to the amount of straw mulching and the mulching time, which result in large differences in the physical and chemical properties of the soil. This has a significant effect on the soil bacterial community structure and species diversity (Huang et al, 2019). Such differences, indeed, are thought to be the result of a combina-tion of multiple external environmental factors such as crop species, soil type, soil moisture, and soil temperature (Zhang et al, 2018).…”

Section: Effects Of Ground Cover On Soil Bacterial Community Diversitymentioning

confidence: 99%

Long‐term ground cover affects soil bacterial community and carbon metabolism in the Loess Plateau, China

Zhang

Wang

et al. 2022

Soil Science Soc of Amer J

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Farmland mulching can maintain soil nutrients, which plays a positive role in agricultural planting in the arid area. However, the composition of the soil microbial community and the C cycle involved is unclear under farmland mulching. Based on the Changwu Agro-Ecological Experiment Station, this study set up a long-term positioning experiment to explore the effect on soil bacterial community structure and C metabolism capacity. In this study, we include five treatments: control uncovered (CK), plastic film mulching (PF), high amount of straw mulching carried out in July, August, and September every year (St 90 ), low amount of straw mulch throughout the growth period (S 45 ), and high amount of straw cover throughout the growth period (S 90 ). We combined Illumina MiSeq sequencing and Biolog-ECO technology to analyze the functional characterization of soil bacterial community composition in terms of C source metabolism. The results indicated that the soil bacteria showed a high degree of epistatic clustering, and the operational taxonomic unit numbers of soil bacteria decrease as St 90 , S 45 , PF, CK, and S 90 . Redundancy analysis showed that soil available P, NH 4 + -N, soil moisture content were the main environmental factors affecting bacterial community composition. Proteobacteria, Acidobacteria, and Actinobacteria are the main dominant flora in this area. Soil bacterial C metabolism was highest under PF treatment. Structural equation modeling (SEM) shows that surface cover has direct and indirect effects on bacterial C metabolism capacity and diversity through soil physicochemical properties. Reasonable mulching methods have a positive effect on the sustainable development of agro-ecosystems in arid areas. Abbreviations: AP, available phosphorus; AWCD, average well color development; CK, control uncovered; MC, soil moisture content; MFC, soil maximum water holding capacity in the field; NH 4 + -N, soil ammonium nitrogen; NO 3 − -N, nitrate-nitrogen; OTU, operational taxonomic units; PF, plastic film mulch; RDA, redundancy analysis; S 45 , low amount of straw mulch throughout the growth period; S 90 , high amount of straw cover throughout the growth period; SEM, structural equation modeling; SOC, soil organic carbon; St 90 , high amount of straw mulching is carried out in July, August, and September; TC, total carbon; TN, total nitrogen; TP, total phosphorus.

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Section: Effects Of Ground Cover On Soil Bacterial Community Diversitymentioning

confidence: 99%

Long‐term ground cover affects soil bacterial community and carbon metabolism in the Loess Plateau, China

Zhang

Wang

et al. 2022

Soil Science Soc of Amer J

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“…A growing body of research indicates that cover crops increase landscape resilience [30,31]. Integrating cover crops into both summer and winter crop rotations can improve water infiltration, decrease soil surface evaporation, and decrease the amount of soil water through plant use [32][33][34][35][36]. Because cover crops are planted after the primary crop is harvested, their benefits for flood control would be primarily limited to winter or early spring when fewer major flooding events occur.…”

Section: Cover Crops and No-tillmentioning

confidence: 99%

Natural Infrastructure Practices as Potential Flood Storage and Reduction for Farms and Rural Communities in the North Carolina Coastal Plain

et al. 2021

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Increased global temperatures resulting from anthropogenically induced climate changes have increased the frequency and severity of adverse weather events, including extreme rainfall events, floods, and droughts. In recent years, nature-based solutions (NBS) have been proposed to retain storm runoff temporarily and mitigate flood damages. These practices may help rural farm and forest lands to store runoff and reduce flooding on farms and downstream communities and could be incorporated into a conservation program to provide payments for these efforts, which would supplement traditional farm incomes. Despite their potential, there have been very few methodical assessments and detailed summaries of NBS to date. We identified and summarized potential flood reduction practices for the Coastal Plain of North Carolina. These include agricultural practices of (1) cover cropping/no-till farming; (2) hardpan breakup; (3) pine or (4) hardwood afforestation, and (5) agroforestry; establishing the wetland and stream practices of (6) grass and sedge wetlands and earthen retention structures, (7) forest wetland banks, and (8) stream channel restoration; and establishing new structural solutions of (9) dry dams and berms (water farming) and (10) tile drainage and water retention. These practices offer different water holding and storage capacities and costs. A mixture of practices at the farm and landscape level can be implemented for floodwater retention and attenuation and damage reduction, as well as for providing additional farm and forest ecosystem services.

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“…Planting apple trees promotes the national policy of returning farmland to forest and grassland and further contributes to improvements in the environment [22][23][24]. In addition, the income provided by the apple industry has lifted several people out of poverty, improved the rural economy and promoted the long-term development of agricultural industrialization [25,26]. Grass cover could reduce soil and water losses, thereby improving the fertilizer utilization efficiency and soil conditions in apple orchards [11,16].…”

Section: Introductionmentioning

confidence: 99%

“…Grass cover could reduce soil and water losses, thereby improving the fertilizer utilization efficiency and soil conditions in apple orchards [11,16]. Grass cover treatment has been shown to impact soil temperature and water content, soil microbial carbon, apple tree growth and apple yields in apple orchards [11,25,26].…”

Section: Introductionmentioning

confidence: 99%

Short-Term Effects of Cover Grass on Soil Microbial Communities in an Apple Orchard on the Loess Plateau

Park

2021

Forests

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Grass cover may improve soil environmental conditions in apple orchards. However, the mechanisms for how the soil microbial community changes after cover grass treatments are not well understood. In this study, we analyzed soil properties, microbial community diversity and composition in an apple orchard after being covered with native wild grasses for 3 years on the Loess Plateau, China. The ratios of cover grass were 0% (no cover, NC), 20% (low-intensity cover, LIC), 40% (moderate-intensity cover, MIC1), 60% (moderate-intensity cover, MIC2) and 80% (high-intensity cover, HIC). Meanwhile, the relationships between soil nutrients, cover grass properties, and microbial communities was analyzed by redundancy analysis and Pearson correlations. The results showed that cover grass altered the bacterial community composition, and significant changes at the phylum level were mainly caused by Proteobacteria, Bacteroidetes and Chloroflexi. Compared with NC, the abundance of Proteobacteria was lower in LIC, and the abundance of Bacteroidetes was lower in LIC, MIC1 and MIC2, while that of Chloroflexi was higher in LIC. LIC and MIC1 were the only cover grass intensities that altered the soil fungal community composition; there were no significant differences at the phylum level. The changes in the soil microbial community at the given phyla may be related to the change in soil available nitrogen content caused by cover grass. Here, we demonstrate that cover grass changed the soil microbial community, and the changes may be attributed to the given phyla in the bacterial community; soil copiotrophic groups (e.g., Proteobacteria and Bacteroidetes) were found to be at lower abundance in the low-intensity cover grass.

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Long-term cover cropping seasonally affects soil microbial carbon metabolism in an apple orchard

Cited by 20 publications

References 25 publications

Long‐term ground cover affects soil bacterial community and carbon metabolism in the Loess Plateau, China

Long‐term ground cover affects soil bacterial community and carbon metabolism in the Loess Plateau, China

Natural Infrastructure Practices as Potential Flood Storage and Reduction for Farms and Rural Communities in the North Carolina Coastal Plain

Short-Term Effects of Cover Grass on Soil Microbial Communities in an Apple Orchard on the Loess Plateau

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