| Title | Responses of the soil microbial community to nitrogen fertilizer regimes and historical exposure to extreme weather events: Flooding or prolonged-drought |
| Publication Type | Journal Article |
| Year of Publication | 2018 |
| Authors | Nguyen L.TT, Osanai Y., Lai K., Anderson I.C, Bange M.P, Tissue D.T, Singh B.K |
| Journal | Soil Biology and Biochemistry |
| Volume | 118 |
| Pagination | 227-236 |
| Date Published | Mar |
| Type of Article | Article |
| ISBN Number | 0038-0717 |
| Accession Number | WOS:000428490500025 |
| Keywords | Agriculture, Bacterial diversity, carbon, climate-change, community, enzyme-activities, legacy, Legacy impacts, microbial respiration, N fertilizer addition, organic-matter, Prolonged-drought, respiration, simulated global change, Soil bacterial, species richness, temperate forest, Waterlogging |
| Abstract | Extreme weather events, including flooding and prolonged-drought, may establish long-lasting effects on soil biotic and abiotic properties, thus influencing ecosystem functions including primary productivity in subsequent years. Nitrogen (N) fertilizer addition often improves soil fertility, thereby potentially alleviating legacy effects on soil function and plant productivity. The soil microbial community plays a central role in mediating soil functioning; however, little is known about the legacy impacts of extreme weather events and N fertilizer addition on soil bacterial communities and the key processes involved in carbon (C) cycling. Here, the potential legacy effects of waterlogging, prolonged-drought and N fertilizer addition (0, 100, 200 and 300 kg N/ha) on soil bacteria and microbial respiration were investigated. The abundance, diversity and composition of the bacterial community, and basal and induced-respiration rates, in a farming soil system were examined, using quantitative PCR, high-throughput DNA sequencing, and MicroResp (TM). Soils previously exposed to short-term waterlogging events and prolonged-drought (by air-drying for 4 months) were used in our study. Prolonged drought, but not waterlogging, had a strong legacy effect on the soil bacterial community and microbial respiration. The addition of N fertilizer up to 300 kg N/ha could not fully counteract the legacy effects of prolonged-drought on soil bacteria. However, N addition did increase bacterial abundance and diversity, and inhibited soil microbial respiration. Significant correlations between microbial respiration and bacterial community structure were observed, but N addition weakened these relationships. Our results suggest that the resilience (rate of recovery) of soil bacterial communities and functions to prolonged-drought is limited in farming systems, and therefore, may take a long time to recover completely. Subsequently, this should be explicitly considered when developing adaptation strategies to alleviate the impacts of extreme weather events.
|
| Short Title | Soil Biol. Biochem.Soil Biol. Biochem. |
| Alternate Journal | Soil Biol. Biochem. |
stdClass Object
(
[vid] => 420
[uid] => 1
[title] => Responses of the soil microbial community to nitrogen fertilizer regimes and historical exposure to extreme weather events: Flooding or prolonged-drought
[log] =>
[status] => 1
[comment] => 2
[promote] => 1
[sticky] => 0
[nid] => 420
[type] => biblio
[language] => und
[created] => 1569417089
[changed] => 1569417089
[tnid] => 0
[translate] => 0
[revision_timestamp] => 1569417089
[revision_uid] => 11
[biblio_type] => 102
[biblio_number] =>
[biblio_other_number] =>
[biblio_sort_title] => Responses of the soil microbial community to nitrogen fertilizer
[biblio_secondary_title] => Soil Biology and Biochemistry
[biblio_tertiary_title] =>
[biblio_edition] =>
[biblio_publisher] =>
[biblio_place_published] =>
[biblio_year] => 2018
[biblio_volume] => 118
[biblio_pages] => 227-236
[biblio_date] => Mar
[biblio_isbn] => 0038-0717
[biblio_lang] => English
[biblio_abst_e] => Extreme weather events, including flooding and prolonged-drought, may establish long-lasting effects on soil biotic and abiotic properties, thus influencing ecosystem functions including primary productivity in subsequent years. Nitrogen (N) fertilizer addition often improves soil fertility, thereby potentially alleviating legacy effects on soil function and plant productivity. The soil microbial community plays a central role in mediating soil functioning; however, little is known about the legacy impacts of extreme weather events and N fertilizer addition on soil bacterial communities and the key processes involved in carbon (C) cycling. Here, the potential legacy effects of waterlogging, prolonged-drought and N fertilizer addition (0, 100, 200 and 300 kg N/ha) on soil bacteria and microbial respiration were investigated. The abundance, diversity and composition of the bacterial community, and basal and induced-respiration rates, in a farming soil system were examined, using quantitative PCR, high-throughput DNA sequencing, and MicroResp (TM). Soils previously exposed to short-term waterlogging events and prolonged-drought (by air-drying for 4 months) were used in our study. Prolonged drought, but not waterlogging, had a strong legacy effect on the soil bacterial community and microbial respiration. The addition of N fertilizer up to 300 kg N/ha could not fully counteract the legacy effects of prolonged-drought on soil bacteria. However, N addition did increase bacterial abundance and diversity, and inhibited soil microbial respiration. Significant correlations between microbial respiration and bacterial community structure were observed, but N addition weakened these relationships. Our results suggest that the resilience (rate of recovery) of soil bacterial communities and functions to prolonged-drought is limited in farming systems, and therefore, may take a long time to recover completely. Subsequently, this should be explicitly considered when developing adaptation strategies to alleviate the impacts of extreme weather events.
[biblio_abst_f] =>
[biblio_full_text] => 0
[biblio_url] =>
[biblio_issue] =>
[biblio_type_of_work] => Article
[biblio_accession_number] => WOS:000428490500025
[biblio_call_number] =>
[biblio_notes] => ISI Document Delivery No.: GA7BV
Times Cited: 0
Cited Reference Count: 87
Nguyen, Linh T. T. Osanai, Yui Lai, Kaitao Anderson, Ian C. Bange, Michael P. Tissue, David T. Singh, Brajesh K.
Hawkesbury Institute for the Environment; Western Sydney University; Cotton Research and Development Corporation project [UWS1301]; Australian Research Council [DP170104634]
The authors gratefully acknowledge Dr. Jasmine Grinyer (WSU) for valuable suggestions and Dr. Michael Braunack at CSIRO Agriculture and Food for assistance with soil collection from Narrabri. We also thank Renee Smith for her technical support during the glasshouse experiment. This work was financially supported by Hawkesbury Institute for the Environment and Western Sydney University. The work was carried out as a part of Cotton Research and Development Corporation project (UWS1301). BKS work is also supported by Australian Research Council (DP170104634).
1
Pergamon-elsevier science ltd
Oxford
[biblio_custom1] =>
[biblio_custom2] =>
[biblio_custom3] =>
[biblio_custom4] =>
[biblio_custom5] =>
[biblio_custom6] =>
[biblio_custom7] =>
[biblio_research_notes] =>
[biblio_number_of_volumes] =>
[biblio_short_title] => Soil Biol. Biochem.Soil Biol. Biochem.
[biblio_alternate_title] => Soil Biol. Biochem.
[biblio_original_publication] =>
[biblio_reprint_edition] =>
[biblio_translated_title] =>
[biblio_section] =>
[biblio_citekey] => 420
[biblio_coins] =>
[biblio_doi] =>
[biblio_issn] =>
[biblio_auth_address] => [Nguyen, Linh T. T.; Osanai, Yui; Lai, Kaitao; Anderson, Ian C.; Tissue, David T.; Singh, Brajesh K.] Western Sydney Univ, Hawkesbury Inst Environm, Locked Bag 1797, Penrith, NSW 2751, Australia. [Bange, Michael P.] CSIRO Agr & Food, Australian Cotton Res Inst, Locked Bag 59, Narrabri, NSW 2390, Australia. [Singh, Brajesh K.] Western Sydney Univ, Global Ctr Land Based Innovat, Locked Bag 1797, Penrith, NSW 2751, Australia. [Osanai, Yui] Univ New England, Sch Environm & Rural Sci, Armidale, NSW 2351, Australia. [Lai, Kaitao] CSIRO, N Ryde, NSW 2113, Australia.
Singh, BK (reprint author), Western Sydney Univ, Hawkesbury Inst Environm, Locked Bag 1797, Penrith, NSW 2751, Australia.
b.singh@westernsydney.edu.au
[biblio_remote_db_name] =>
[biblio_remote_db_provider] =>
[biblio_label] =>
[biblio_access_date] =>
[biblio_refereed] =>
[biblio_md5] => ed522c37aa0d152fb94c46a9952d8e86
[biblio_formats] => Array
(
[biblio_abst_e] => full_html
[biblio_abst_f] => full_html
[biblio_notes] => full_html
[biblio_research_notes] => full_html
[biblio_custom1] => full_html
[biblio_custom2] => full_html
[biblio_custom3] => full_html
[biblio_custom4] => full_html
[biblio_custom5] => full_html
[biblio_custom6] => full_html
[biblio_custom7] => full_html
[biblio_coins] => full_html
[biblio_auth_address] => full_html
)
[biblio_type_name] => Journal Article
[biblio_contributors] => Array
(
[0] => Array
(
[nid] => 420
[vid] => 420
[cid] => 849
[auth_type] => 1
[auth_category] => 1
[rank] => 0
[merge_cid] => 0
[aka] => 0
[alt_form] => 0
[drupal_uid] =>
[name] => Nguyen, L. T. T.
[lastname] => Nguyen
[firstname] => L.
[prefix] =>
[suffix] =>
[initials] => T. T.
[affiliation] =>
[literal] => 0
[md5] => b5363c3ff0afc47ea5ccf496510e4cc2
)
[1] => Array
(
[nid] => 420
[vid] => 420
[cid] => 850
[auth_type] => 1
[auth_category] => 1
[rank] => 1
[merge_cid] => 0
[aka] => 0
[alt_form] => 0
[drupal_uid] =>
[name] => Osanai, Y.
[lastname] => Osanai
[firstname] => Y.
[prefix] =>
[suffix] =>
[initials] =>
[affiliation] =>
[literal] => 0
[md5] => 89acac20128a7375db4b41b718658be3
)
[2] => Array
(
[nid] => 420
[vid] => 420
[cid] => 804
[auth_type] => 1
[auth_category] => 1
[rank] => 2
[merge_cid] => 0
[aka] => 0
[alt_form] => 0
[drupal_uid] =>
[name] => Lai, K.
[lastname] => Lai
[firstname] => K.
[prefix] =>
[suffix] =>
[initials] =>
[affiliation] =>
[literal] => 0
[md5] => 3a535bc60cf84e6877d56335e10a1b1a
)
[3] => Array
(
[nid] => 420
[vid] => 420
[cid] => 125
[auth_type] => 1
[auth_category] => 1
[rank] => 3
[merge_cid] => 0
[aka] => 0
[alt_form] => 0
[drupal_uid] =>
[name] => Anderson, I. C.
[lastname] => Anderson
[firstname] => I.
[prefix] =>
[suffix] =>
[initials] => C.
[affiliation] =>
[literal] => 0
[md5] => 82c3d855ba3014a3bc2daf909636d661
)
[4] => Array
(
[nid] => 420
[vid] => 420
[cid] => 851
[auth_type] => 1
[auth_category] => 1
[rank] => 4
[merge_cid] => 0
[aka] => 0
[alt_form] => 0
[drupal_uid] =>
[name] => Bange, M. P.
[lastname] => Bange
[firstname] => M.
[prefix] =>
[suffix] =>
[initials] => P.
[affiliation] =>
[literal] => 0
[md5] => d717be5f8279bc55306e23c992c353dd
)
[5] => Array
(
[nid] => 420
[vid] => 420
[cid] => 852
[auth_type] => 1
[auth_category] => 1
[rank] => 5
[merge_cid] => 0
[aka] => 0
[alt_form] => 0
[drupal_uid] =>
[name] => Tissue, D. T.
[lastname] => Tissue
[firstname] => D.
[prefix] =>
[suffix] =>
[initials] => T.
[affiliation] =>
[literal] => 0
[md5] => c10aced984d0cbddd77bb10d3be42763
)
[6] => Array
(
[nid] => 420
[vid] => 420
[cid] => 167
[auth_type] => 1
[auth_category] => 1
[rank] => 6
[merge_cid] => 0
[aka] => 0
[alt_form] => 0
[drupal_uid] =>
[name] => Singh, B. K.
[lastname] => Singh
[firstname] => B.
[prefix] =>
[suffix] =>
[initials] => K.
[affiliation] =>
[literal] => 0
[md5] => b59c9500754b536a90eabcf3ebaa13ea
)
)
[biblio_keywords] => Array
(
[421] => Agriculture
[714] => Bacterial diversity
[135] => carbon
[203] => climate-change
[761] => community
[174] => enzyme-activities
[1223] => legacy
[1217] => Legacy impacts
[275] => microbial respiration
[1219] => N fertilizer addition
[51] => organic-matter
[1216] => Prolonged-drought
[310] => respiration
[1220] => simulated global change
[1218] => Soil bacterial
[1222] => species richness
[1221] => temperate forest
[1215] => Waterlogging
)
[body] => Array
(
)
[rdf_mapping] => Array
(
[rdftype] => Array
(
[0] => sioc:Item
[1] => foaf:Document
)
[title] => Array
(
[predicates] => Array
(
[0] => dc:title
)
)
[created] => Array
(
[predicates] => Array
(
[0] => dc:date
[1] => dc:created
)
[datatype] => xsd:dateTime
[callback] => date_iso8601
)
[changed] => Array
(
[predicates] => Array
(
[0] => dc:modified
)
[datatype] => xsd:dateTime
[callback] => date_iso8601
)
[body] => Array
(
[predicates] => Array
(
[0] => content:encoded
)
)
[uid] => Array
(
[predicates] => Array
(
[0] => sioc:has_creator
)
[type] => rel
)
[name] => Array
(
[predicates] => Array
(
[0] => foaf:name
)
)
[comment_count] => Array
(
[predicates] => Array
(
[0] => sioc:num_replies
)
[datatype] => xsd:integer
)
[last_activity] => Array
(
[predicates] => Array
(
[0] => sioc:last_activity_date
)
[datatype] => xsd:dateTime
[callback] => date_iso8601
)
)
[name] => admin
[picture] => 0
[data] => a:14:{s:7:"overlay";i:0;s:16:"ckeditor_default";s:1:"t";s:20:"ckeditor_show_toggle";s:1:"t";s:14:"ckeditor_width";s:4:"100%";s:13:"ckeditor_lang";s:2:"en";s:18:"ckeditor_auto_lang";s:1:"t";s:19:"biblio_show_profile";i:0;s:19:"biblio_my_pubs_menu";i:0;s:21:"biblio_contributor_id";s:1:"0";s:22:"biblio_id_change_count";s:1:"0";s:17:"biblio_user_style";s:6:"system";s:18:"biblio_baseopenurl";s:0:"";s:18:"biblio_openurl_sid";s:0:"";s:19:"biblio_crossref_pid";s:0:"";}
[entity_view_prepared] => 1
)