Effects of salinity on the soil microbial community and soil fertility
Saline area is an important reserve resource of arable land, however, the effects of soil microorganisms on the soil fertility in saline coastal ecosystems remain poorly understood. The salinity effects on soil microorganisms, nutrient availabilities and their relationships were studied in soils alo...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2019-06-01
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| Series: | Journal of Integrative Agriculture |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095311918620775 |
| _version_ | 1818893132804128768 |
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| author | Wen-wen ZHANG Chong WANG Rui XUE Li-jie WANG |
| author_facet | Wen-wen ZHANG Chong WANG Rui XUE Li-jie WANG |
| author_sort | Wen-wen ZHANG |
| collection | DOAJ |
| description | Saline area is an important reserve resource of arable land, however, the effects of soil microorganisms on the soil fertility in saline coastal ecosystems remain poorly understood. The salinity effects on soil microorganisms, nutrient availabilities and their relationships were studied in soils along a salinity gradient. A total of 80 soil samples were collected from 16 sites at four salinity levels (non-saline soil, salt content<1 g kg−1; low salinity soil, salt content=1−2 g kg−1; middle salinity soil, salt content=2−4 g kg−1; high salinity soil, salt content>4 g kg−1). The results showed that the salinity increased soil pH and exchangeable Na percent, but decreased soil organic matter, soil exchangeable K, and soil microbial biomass. Both the abundance and community composition of soil bacteria and fungi were significantly different between the non-saline and the saline soils. The predominant genera of soil bacteria (Planctomyces and Archangium, positive for carbon fixation) and fungi (Hydropisphaera, efficient in lignin degradation) changed with the increasing soil salinity and the decreasing soil organic matter. In summary, soil salinity changed the abundances of soil bacterial, fungal, and arbuscular mycorrhizal communities and, subsequently, affected their function in saline coastal ecosystems. |
| first_indexed | 2024-12-19T18:07:45Z |
| format | Article |
| id | doaj.art-a438b09fe09c47078660fbf0713de41b |
| institution | Directory Open Access Journal |
| issn | 2095-3119 |
| language | English |
| last_indexed | 2024-12-19T18:07:45Z |
| publishDate | 2019-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Integrative Agriculture |
| spelling | doaj.art-a438b09fe09c47078660fbf0713de41b2022-12-21T20:11:24ZengElsevierJournal of Integrative Agriculture2095-31192019-06-0118613601368Effects of salinity on the soil microbial community and soil fertilityWen-wen ZHANG0Chong WANG1Rui XUE2Li-jie WANG3College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, P.R. China; Beijing Key Laboratory of Biodiversity and Organic Farming, China Agricultural University, Beijing 100193, P.R. China; Key Laboratory of Plant-Soil Interactions, Ministry of Education, Beijing 100193, P.R. China; ZHANG Wen-wen, Tel: +86-10-62734710College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, P.R. China; Beijing Key Laboratory of Biodiversity and Organic Farming, China Agricultural University, Beijing 100193, P.R. China; Key Laboratory of Plant-Soil Interactions, Ministry of Education, Beijing 100193, P.R. China; Correspondence WANG Chong, Tel: +86-10-62734710College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, P.R. China; Beijing Key Laboratory of Biodiversity and Organic Farming, China Agricultural University, Beijing 100193, P.R. China; Key Laboratory of Plant-Soil Interactions, Ministry of Education, Beijing 100193, P.R. ChinaCollege of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, P.R. China; Beijing Key Laboratory of Biodiversity and Organic Farming, China Agricultural University, Beijing 100193, P.R. China; Key Laboratory of Plant-Soil Interactions, Ministry of Education, Beijing 100193, P.R. ChinaSaline area is an important reserve resource of arable land, however, the effects of soil microorganisms on the soil fertility in saline coastal ecosystems remain poorly understood. The salinity effects on soil microorganisms, nutrient availabilities and their relationships were studied in soils along a salinity gradient. A total of 80 soil samples were collected from 16 sites at four salinity levels (non-saline soil, salt content<1 g kg−1; low salinity soil, salt content=1−2 g kg−1; middle salinity soil, salt content=2−4 g kg−1; high salinity soil, salt content>4 g kg−1). The results showed that the salinity increased soil pH and exchangeable Na percent, but decreased soil organic matter, soil exchangeable K, and soil microbial biomass. Both the abundance and community composition of soil bacteria and fungi were significantly different between the non-saline and the saline soils. The predominant genera of soil bacteria (Planctomyces and Archangium, positive for carbon fixation) and fungi (Hydropisphaera, efficient in lignin degradation) changed with the increasing soil salinity and the decreasing soil organic matter. In summary, soil salinity changed the abundances of soil bacterial, fungal, and arbuscular mycorrhizal communities and, subsequently, affected their function in saline coastal ecosystems.http://www.sciencedirect.com/science/article/pii/S2095311918620775soil salt contentsoil organic matterT-RFLPsoil health |
| spellingShingle | Wen-wen ZHANG Chong WANG Rui XUE Li-jie WANG Effects of salinity on the soil microbial community and soil fertility Journal of Integrative Agriculture soil salt content soil organic matter T-RFLP soil health |
| title | Effects of salinity on the soil microbial community and soil fertility |
| title_full | Effects of salinity on the soil microbial community and soil fertility |
| title_fullStr | Effects of salinity on the soil microbial community and soil fertility |
| title_full_unstemmed | Effects of salinity on the soil microbial community and soil fertility |
| title_short | Effects of salinity on the soil microbial community and soil fertility |
| title_sort | effects of salinity on the soil microbial community and soil fertility |
| topic | soil salt content soil organic matter T-RFLP soil health |
| url | http://www.sciencedirect.com/science/article/pii/S2095311918620775 |
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