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Agriculture
Special Issues
Saline–Alkali Land Ecology and Soil Management
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Saline–Alkali Land Ecology and Soil Management

A special issue of Agriculture (ISSN 2077-0472). This special issue belongs to the section "Agricultural Soils".

Deadline for manuscript submissions: 30 June 2024 | Viewed by 1103

Special Issue Editors

Prof. Dr. Yanchao Bai

E-Mail Website
Guest Editor
College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China
Interests: soil amendment; saline-alkali land; soil carbon storage; heavy metal; plant nutrition
Special Issues, Collections and Topics in MDPI journals
Dr. Chuanhui Gu

E-Mail Website
Guest Editor
Environmental Research Center, Duke Kunshan University, Kunshan 215316, China
Interests: soil amendment; saline-alkali land; soil carbon storage; carbon and nitrogen cycling; soil greenhouse gas emissions
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Haiying Lu

E-Mail Website
Guest Editor
College of Biology and the Environment, Nanjing Forestry University, Nanjing 210042, China
Interests: wetland ecological process and restoration; non-point source pollution; heavy metal; biochar
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Saline–alkali lands are valuable resources. Such soils are high in salinity and low in fertility, as indicated by the poor structure, extremely low organic matter content, low nutrient level, and lack of microbial diversity, making them unsuitable for cultivation. The keys to restoring saline–alkali soil to arable land are (1) reducing salinity and (2) increasing the soil organic matter content and, thus, soil fertility. The former determines whether the reclaimed saline–alkali soil can be used for crop production and the latter determines whether the crop production is sustainable.

This Special Issue will strive to identify and answer questions around how we can optimize saline–alkali land ecology and soil management toward crop advancement.

We welcome cutting-edge research focusing on saline–alkali land ecology, and the management, amendment, aggregates, and crop advancement of saline–alkali soils.

Review articles and technology reports are welcome.

Prof. Dr. Yanchao Bai
Dr. Chuanhui Gu
Prof. Dr. Haiying Lu
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Agriculture is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • saline–alkali land
  • soil ecology
  • soil amendment
  • soil aggregates
  • soil amendment
  • crop advancement

Published Papers (1 paper)

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Research

14 pages, 9696 KiB  
Article
Addition of Exogenous Organic Ameliorants Mediates Soil Bacteriome and Microbial Community Carbon Source Utilization Pattern in Coastal Saline–Alkaline Soil
by Binxian Gu, Tianyang Qin, Meihua Qiu, Jie Yu, Li Zhang and Yunlong Li
Agriculture 2024, 14(1), 44; https://doi.org/10.3390/agriculture14010044 - 26 Dec 2023
Viewed by 860
Abstract
Knowledge regarding how abiotic and biotic environmental factors operate in soil microbiome reassembly remains rudimentary in coastal saline–alkaline soils amended by different organic ameliorants. In this study, field trials were conducted to investigate the impacts and underlying mechanisms of sewage sludge (S) and [...] Read more.
Knowledge regarding how abiotic and biotic environmental factors operate in soil microbiome reassembly remains rudimentary in coastal saline–alkaline soils amended by different organic ameliorants. In this study, field trials were conducted to investigate the impacts and underlying mechanisms of sewage sludge (S) and sludge-based vermicompost (V) at the application amounts of 0, 50, and 100 t ha−1 on soil physicochemical characteristics, carbon source utilization pattern, and bacteriome in coastal saline–alkaline soils. Results revealed that impacts of the organic ameliorants on soil’s physicochemical and microbial attributes were highly dependent upon the carbon types and amounts applied. Unsurprisingly, applying sewage sludge and vermicompost significantly alleviated environmental constraints, such as saline–alkaline stress and nutrient deficiency, with lower pH, salinity, and higher soil organic carbon content observed in organics-amended soils. Specifically, higher microbial substrate metabolic activity, but lower diversity was observed in saline–alkaline soils amended by organic ameliorants. In addition, reassembled bacteriomes harboring distinguishable core and unique community profiles were observed in reclaimed soils as compared to unamended saline–alkaline soil. Procrustes analysis showed that the soil microbial utilization pattern of carbon sources was significantly related to the alterations in their physicochemical property and bacterial core microbiome. Additionally, Redundancy Analysis (RDA) revealed that soil core bacteriome reassembly was dominated by the integrated impacts of soil salinity, successively followed by carbohydrates, amino acids, polymers, pH, soil organic carbon (SOC), and available nitrogen (AN). Overall, this study provides a comprehensive understanding of soil abiotic and biotic determinants in bacteriome assembly in coastal saline–alkaline soil remediation mediated by organic ameliorants. Full article
(This article belongs to the Special Issue Saline–Alkali Land Ecology and Soil Management)
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