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AuthorHussain, Mohammed Bakr
AuthorAl-Hadidi, Sara H.
AuthorErfanian, Mohammad Bagher
AuthorYahia, Mohamed Nejib Daly
AuthorMullungal, Muhammed Nayeem
AuthorAlsafran, Mohammed
AuthorBai, Yang
AuthorAlatalo, Juha M.
Available date2023-05-10T07:52:32Z
Publication Date2023-03-01
Publication NameSoil Systems
Identifierhttp://dx.doi.org/10.3390/soilsystems7010006
CitationHussain, M.B.; Al-Hadidi, S.H.; Erfanian, M.B.; Yahia, M.N.D.; Mullungal, M.N.; Alsafran, M.; Bai, Y.; Alatalo, J.M. Photodegradation and Its Effect on Plant Litter Decomposition in Terrestrial Ecosystems: A Systematic Review. Soil Syst. 2023, 7, 6. https://doi.org/10.3390/soilsystems7010006
URIhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85150970297&origin=inward
URIhttp://hdl.handle.net/10576/42535
AbstractPhotodegradation is an important mechanism that affects carbon and nutrient cycling; a significant amount of data has been reported previously. The present review includes the effect of a wider spectrum of solar radiation (sun light, UV, and visible light) on plant litter decay in terrestrial ecosystems. Although the positive effect of photodegradation on decomposition is most common, a substantial number of studies reports contrasting results. Litter from 148 plant species, from 41 families, have been used in photodegradation studies, representing functional groups of trees (33%), graminoids (30%), shrubs (23%), forbs (11%), and peat (1%). Although the majority of studies focused on mass loss, a growing number focuses on nutrient release. Positive effects on mass loss are most common across different climate regions and laboratory studies, whereas “positive” influence and “no effect” on nitrogen and lignin release are equally common in temperate and sub-tropical environments. This may potentially be due to other decomposition processes which increase in relevance with increasing moisture and can facilitate microbial activity, leaching, and fractioning by soil fauna. In addition to climate region, initial litter quality influences photodegradation. Field-based and laboratory experiments frequently obtain contrasting results, suggesting that the mechanisms controlling the responses are unclear and might be dependent on several interactions, and/or the differences in experimental approaches (such as UV filters), or coverage by particles. Future research should focus on interactions between different factors, and on conducting experiments that test specific relationships such as the potential interaction between photodegradation, soil moisture, microbial communities, soil fauna, and their effects on litter decomposition (both mass loss and nutrient release). Furthermore, the topic would benefit from international studies applying the same experimental approach, as has successfully been conducted in other fields.
SponsorThis research was funded by [Qatar Petroleum] grant number [QUEX-CAS-QP-RD-18/19].
Languageen
PublisherMDPI
Subjectcarbon loss
litter decomposition
nutrient breakdown
nutrient release
photodegradation
PRISMA guidelines
solar UV radiation
TitlePhotodegradation and Its Effect on Plant Litter Decomposition in Terrestrial Ecosystems: A Systematic Review
TypeArticle Review
Issue Number1
Volume Number7
ESSN2571-8789
dc.accessType Open Access


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