Impact of diurnal unsymmetrical warming on soil respiration in an agroecological system of the Lhasa region.
basic_science · Level V
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- Record sourced from PubMed, PMID 31141568.
- Also identified by DOI 10.1371/journal.pone.0217575 and PMC identifier 6541288.
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Abstract
The impact of diurnal unsymmetrical rise in temperature on soil respiration (Rs) is not fully understood; thus, we explored such a warming influence on Rs in an agroecological system of the Lhasa. A field warming experiment (C: control; DW: daytime warming; NW: nighttime warming; DW+NW: daytime plus nighttime warming) was carried out in a naked barley ecological system. The DW, NW and DW+NW treatments dramatically increased soil temperature and decreased soil moisture but did not markedly modify Rs. The effects of DW and NW on soil respiration sensitivity (Q10) during the daytime and nighttime were different; they had no effects on daytime Q10 of Rs, but a significant inhibitory effect on nighttime Q10 of Rs. A diurnal unsymmetrical rise in temperature brought about different results for the Q10 of Rs but did not cause changes in Rs under different experimental treatments in agroecological systems of the Lhasa.
Medical subject headings
- Ecosystem
- Hot Temperature
- Seasons
- Soil