Soil bacterial community dynamics reflect changes in plant community and soil properties during the secondary succession of abandoned farmland in the Loess Plateau

Zhang, Chao; Liu, Guobin; Xue, Sha; Wang, Guoliang

doi:10.1016/j.soilbio.2016.02.013

Cited by 517 publications

(321 citation statements)

References 62 publications

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“…), and bacterial properties (Zhang et al. ). The effects of this conversion on the composition of fungal communities and the erodibility of soil, however, have been neglected.…”

Section: Introductionmentioning

confidence: 99%

“…Most croplands with slopes >15°on the Loess Plateau were abandoned to allow natural succession, with consequences to their ecological functions (State Council of the People's Republic of China, 2002, Chang et al 2011. Intensive studies concerning the effects of this conversion on the improvement of soil quality have been carried out in this region, focused mainly on soil structure (Wu et al 2016, Zhao et al 2017, nutrient status (Zhou et al 2017), and bacterial properties (Zhang et al 2016). The effects of this conversion on the composition of fungal communities and the erodibility of soil, however, have been neglected.…”

Section: Introductionmentioning

confidence: 99%

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Natural succession on abandoned cropland effectively decreases the soil erodibility and improves the fungal diversity

Zhang

Liu

Song

et al. 2017

Ecological Applications

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Changes in plants and soils during natural succession have been evaluated, but little is known about the effects of succession on the activities of soil microbes and their interactions with soil erodibility. We conducted a field study on the Chinese Loess Plateau, typical of this semiarid area, to determine the effect of secondary succession on the stability of soil structure against erosion and on the composition of soil fungal communities. Characteristics of plant, soil, and fungal communities were assessed across a 30-yr chronosequence of grassland developed from abandoned cropland. The diversity and composition of the fungal communities were determined using high-throughput sequencing of the internal transcribed spacer. Six grasslands were selected to represent different successional age classes: 0 (cropland), 5, 10, 15, 20, and 30 yr. Short-term decreases (initial 5 yr) in the amounts of soil organic carbon, total nitrogen, available phosphorus, and fungal biomass and in fungal diversity had returned to original levels (i.e., cropland) within 15 yr and were much higher after continued succession. Abandoning cropland for succession caused the soil erodibility (K) decrease and the aboveground coverage, soil nutrient levels, content of larger (>5 mm) water-stable aggregate, mean aggregate weight diameter, and diversity of the fungal communities improvement including arbuscular mycorrhizas (AMF), ectomycorrhizas (EMF), and saprotrophs. The fungal communities were dominated by Ascomycota, Zygomycota, Basidiomycota, and Glomeromycota during the succession. The successional patterns of the plant and fungal communities were similar, although distinct fungal communities were not observed in the two initial stages, suggesting that fungal succession may develop more slowly than plant succession. Plant root biomass, EMF, and soil organic carbon content accounted for most of the variation of soil erodibility (28.6%, 19.5%, and 11.8%, respectively), indicating their importance in shaping soil structure to prevent erosion. Our results demonstrated that abandoning cropland for natural succession could decrease soil erodibility and increase fungal diversity. EMF plays an important role in soil stability against erosion in the Loess Plateau. Abandoning cropland for natural succession should be recommended for alleviating soil erosion and improving the degraded soils in this area.

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“…), and bacterial properties (Zhang et al. ). The effects of this conversion on the composition of fungal communities and the erodibility of soil, however, have been neglected.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Natural succession on abandoned cropland effectively decreases the soil erodibility and improves the fungal diversity

Zhang

Liu

Song

et al. 2017

Ecological Applications

Self Cite

View full text Add to dashboard Cite

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“…For instance, SOC losses induced by the 20-year coverage of degraded grasses in C5 (and P5) were related to the low SOC stocks as compared with C25 (and P25) ( Figure 3). Soil enzymes participate in the metabolism of organic matter, catalyze biochemical processes, and affect soil nutrient accumulation and mineralization [76,77]. In the present study, invertase had significant impacts on SOC content in both the cornfields and paddies ( Figure 6).…”

Section: Effects Of Crop Cultivation On Socmentioning

confidence: 60%

Corn and Rice Cultivation Affect Soil Organic and Inorganic Carbon Storage through Altering Soil Properties in Alkali Sodic Soils, Northeast of China

Wang

Tang

et al. 2020

Sustainability

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Soil organic carbon (SOC) and soil inorganic carbon (SIC) play essential roles in carbon cycling in terrestrial ecosystems; however, the effects of crop cultivation on them are still poorly understood, especially in alkali sodic soils widely distributed in semiarid regions. Alkali sodic soils from cornfields and paddies with cultivation years of 5, 15, and 25 were analyzed here to assess the response of soil properties and soil carbon pools to crop cultivation. Soil pH and exchangeable sodium percentages decrease in accordance with cultivation years, while enzyme activity (amylase, invertase, and catalase) shows a contrary trend. Soil pH and exchangeable sodium percentages are negatively correlated with SOC, but positively correlated with SIC. Redundancy analysis reveals an obvious relationship between SOC and invertase activity. The percentage of δ 13 C SOC found here is approximately -24.78% to -22.97% for cornfields and approximately -26.54% to -23.81% for paddies, suggesting that crop cultivation contributes to SOC sequestration and stocking, increasing with cultivation years. The percentage of δ 13 C SIC found here is approximately 1.90% to 3.73% , proving that lithogenic inorganic carbon is the major SIC, where the stock decreases with increasing cultivation years. Significant total carbon stock loss is observed in cornfields, while it is preserved at 120 Mg ha −1 in paddies. We conclude here from the results that corn and rice cultivation reduce alkali sodic conditions in soil, thereby improving soil enzymes and favoring SOC stocking, but reducing SIC stocks.

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“…Therefore, the moisture content is an important factor for the survival of microbes (Falconer, Houston, Otten, & Baveye, ; Idowu, Edema, & Adeyi, ; Postma, Veen, & Walter, ), and the moisture content directly determines the reproductive or metabolic processes of soil microbes (Gray, ; Skopp, Jawson, & Doran, ). Furthermore, the chemical properties of soil can enhance the nutrition of soil microbes, and a lack of soil nutrients can adversely affect the reproduction and diffusion of microbial communities (Zaller, Frank, & Drapela, ; Zhang, Liu, Xue, & Wang, ). Organic carbon, as a main component of soil matter, is a critical source of nutrients for microbial communities.…”

Section: Discussionmentioning

confidence: 99%

Effects of natural vegetative restoration on soil fungal and bacterial communities in bare patches of the southern Taihang Mountains

Zhao

Zhang

et al. 2019

Ecology and Evolution

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Understanding the distribution and composition of soil microbes in bare patches is a critical step to improving ecological remediation. The effects of different vegetative restoration types on soil microbes within semi‐arid bare patches remain unclear. Here, we evaluated the distribution of soil fungi and bacteria among different ecological restoration types at the southern Taihang Mountains. Analysis of variance showed that the chemical properties of soil with vegetation cover have higher nutrient quality than those of the exposed soil. The results also suggested that vegetative restoration significantly improved the diversity and the richness of the soil fungal and bacterial communities. Sequencing results showed that Ascomycota and Basidiomycota were the main soil fungal communities, whereas Proteobacteria, Acidobacteria, and Actinobacteria were the main soil bacterial communities. There were significant relationships between the contents of moisture, organic matter and organic carbon and the soil fungal/bacterial communities. Venn and network diagrams indicated that the vegetative restoration types largely influenced the soil fungi and weakly influenced the soil bacteria in the bare patches. This study discusses the importance of vegetative restoration in the ecological remediation of bare patches. These findings provide effective references for soil restorative measures, water conservation, and bare‐spot reduction at the southern Taihang Mountains in future.

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Soil bacterial community dynamics reflect changes in plant community and soil properties during the secondary succession of abandoned farmland in the Loess Plateau

Cited by 517 publications

References 62 publications

Natural succession on abandoned cropland effectively decreases the soil erodibility and improves the fungal diversity

Natural succession on abandoned cropland effectively decreases the soil erodibility and improves the fungal diversity

Corn and Rice Cultivation Affect Soil Organic and Inorganic Carbon Storage through Altering Soil Properties in Alkali Sodic Soils, Northeast of China

Effects of natural vegetative restoration on soil fungal and bacterial communities in bare patches of the southern Taihang Mountains

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