Data · dataset · 2026
Effects of repeated severe dry–wet cycles on nitrogen mineralization processes and associated microbial genes in humid temperate forest soils
Listed in ZivaHub and Deakin Research Online and DMU Figshare — shown once because both records carry DOI 10.6084/m9.figshare.34037766.v1
<p>Ongoing climate change may increase soil dry–wet cycles (DWCs) in humid temperate forest ecosystems that seldom experienced such stress before, yet their effects on nitrogen (N) dynamics remain unclear.
Description
Here, we investigated the effects of repeated DWCs on soil N mineralization and related microbial gene abundance (bacterial and archaeal <i>amoA</i> genes, as well as prokaryotic and fungal genes) in two temperate forests: one with volcanic ash (HSB) and the other with non-volcanic ash soil (AKZ).
Soils were incubated for 75 d with (dry–wet) or without (control) five DWCs. Nitrogen mineralization rates were measured for 5 d following the first, third, and fifth rewetting periods. Microbial gene abundance was measured before and after rewetting during the first, third, and fifth DWCs.
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A significantly higher N mineralization rate in the dry–wet treatment than in the control was found in HSB after first rewetting. The inorganic N concentrations on day 75 were approximately 4.0 and 1.5 times higher in the dry–wet treatment than in the control for HSB and AKZ, respectively. Short-term nitrification rates did not differ among treatments.
However, archaeal <i>amoA</i> gene abundance was lower in the dry–wet treatment than in the control during the third and fifth DWCs, and nitrate-N concentration at the end of incubation in HSB was significantly lower in the dry–wet treatment than in the control. Thus, repeated extremely severe soil DWCs may increase soil inorganic N while suppressing nitrification in currently humid forest ecosystems, although further <i>in situ</i> confirmations are needed.</p>
Links
Where it is published
- DOI doi.org/10.6084/m9.figshare.34037766.v1 ↗
DOI / persistent id · from zivahub uct ac za
Catalogue records · 1
- OAI-PMH record api.figshare.com/v2/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Af… ↗
metadata API · from zivahub uct ac za
Topics
- From keywords
- Chemistry · Chemistry · Chemistry · Climate · Climate · Climate · Earth & Environmental Science · Earth & Environmental Science · Earth & Environmental Science · Ecology · Ecology · Ecology · Life Sciences · Life Sciences · Life Sciences · Microbiology · Microbiology · Microbiology
Provenance · 3 source records, 23 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ZivaHub | oai:figshare.com:article/34037766 | 5 d ago | JSON v1 |
| Deakin Research Online | oai:figshare.com:article/34037766 | 5 d ago | JSON v1 |
| DMU Figshare | oai:figshare.com:article/34037766 | 5 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| concepts[field].anzsrc:group:3103 | mapping · dro deakin edu au | vocabulary-mapper@1.0.0 | keywords['Ecology'] |
| concepts[field].anzsrc:group:3103 | mapping · figshare dmu ac uk | vocabulary-mapper@1.0.0 | keywords['Ecology'] |
| concepts[field].anzsrc:group:3103 | mapping · zivahub uct ac za | vocabulary-mapper@1.0.0 | keywords['Ecology'] |
| concepts[field].anzsrc:group:3107 | mapping · zivahub uct ac za | vocabulary-mapper@1.0.0 | keywords['Microbiology'] |
| concepts[field].anzsrc:group:3107 | mapping · figshare dmu ac uk | vocabulary-mapper@1.0.0 | keywords['Microbiology'] |
| concepts[field].anzsrc:group:3107 | mapping · dro deakin edu au | vocabulary-mapper@1.0.0 | keywords['Microbiology'] |
| concepts[field].local:field:chemistry | mapping · dro deakin edu au | connector:dro_deakin_edu_au@1.0.0 | |
| concepts[field].local:field:chemistry | mapping · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| concepts[field].local:field:chemistry | mapping · figshare dmu ac uk | connector:figshare_dmu_ac_uk@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · dro deakin edu au | connector:dro_deakin_edu_au@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · figshare dmu ac uk | connector:figshare_dmu_ac_uk@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · figshare dmu ac uk | connector:figshare_dmu_ac_uk@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · dro deakin edu au | connector:dro_deakin_edu_au@1.0.0 | |
| concepts[subject].local:topic:climate | mapping · figshare dmu ac uk | vocabulary-mapper@1.0.0 | keywords['Climate change'] |
| concepts[subject].local:topic:climate | mapping · zivahub uct ac za | vocabulary-mapper@1.0.0 | keywords['Climate change'] |
| concepts[subject].local:topic:climate | mapping · dro deakin edu au | vocabulary-mapper@1.0.0 | keywords['Climate change'] |
| description | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | /metadata/dc/description |
| license | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | /metadata/dc/rights |
| publication_date | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | |
| title | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | /metadata/dc/title |