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Soil type and tempe...
Soil type and temperature determine soil respiration seasonal dynamics in dairy grassland
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- Liu, Yulin (författare)
- Auckland University of Technology, New Zealand
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- Zhang, Jingjing (författare)
- Auckland University of Technology, New Zealand;New Zealand Institute of Plant and Food Research Limited, New Zealand
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- Bader, Martin K.-F. (författare)
- Linnéuniversitetet,Institutionen för skog och träteknik (SOT)
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- Leuzinger, Sebastian (författare)
- Auckland University of Technology, New Zealand
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(creator_code:org_t)
- Springer Nature, 2024
- 2024
- Engelska.
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Ingår i: Soil Ecology Letters. - : Springer Nature. - 2662-2289. ; 6:4
- Relaterad länk:
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https://doi.org/10.1...
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https://lnu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Soil respiration rates (Rs) were measured in New Zealand dairy grassland.Both season and soil type significantly affected Rs.Soil temperature and soil type dominated overall Rs.Soil respiration (Rs), the CO2 release from root respiration and microbial metabolism, affects global soil carbon storage and cycling. Only few studies have looked at Rs in the southern hemisphere, especially regarding the interaction between soil type and environmental factors on Rs in dairy grassland. We investigated the relationship between Rs and soil temperature (Ts), soil water content (SWC), soil type, and other environmental factors based on summer and winter measurements at four sites in New Zealand. Across sites, soil respiration rates ranged from 0.29 to 14.58 with a mean of 5.38 +/- 0.13 (mean +/- standard error) mu mol CO2 m-2 s-1. Mean summer R s was 86.5% higher than mean winter Rs, largely driven by organic/gley and pumice soils while ultic soils showed very little seasonal temperature sensitivity. Overall mean Rs in organic/gley soils was 108.0% higher than that in ultic soils. The high Rs rate observed in organic/gley was likely due to high soil organic matter content, while low Rs in ultic and pallic soils resulted from high clay content and low hydraulic conductance. Soil temperature drove overall Rs. Our findings indicate that soil type and soil temperature together best explain Rs. This implies that a mere classification of land use type may be insufficient for global C models and should be supplemented with soil type information, at least locally.
Ämnesord
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Markvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Soil Science (hsv//eng)
Nyckelord
- agriculture
- agricultural soils
- land use
- livestock farming
- soil carbon emission
- soil temperature
- Ecology
- Ekologi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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