Flooding tolerance of four tropical peatland tree species in a nursery trial

In order to facilitate hydrological restoration, initiatives have been conducted to promote tree growth in degraded and rewetted peatlands in Indonesia. For these initiatives to be successful, tree seedlings need to be able to survive flooding episodes, with or without shade. We investigated the sur...

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Bibliographic Details
Published in:	PloS one Vol. 17; no. 4; p. e0262375
Main Authors:	Tata, Hesti L, Nuroniah, Hani S, Ahsania, Diandra A, Anggunira, Haning, Hidayati, Siti N, Pratama, Meydina, Istomo, Istomo, Chimner, Rodney A, van Noordwijk, Meine, Kolka, Randall
Format:	Journal Article
Language:	English
Published:	United States Public Library of Science 06-04-2022 Public Library of Science (PLoS)
Subjects:	Agroforestry Analysis Biology and Life Sciences Canals Carbon Climate change Community Controlled conditions Durio zibethinus Earth Sciences Ecology and Environmental Sciences Emissions Environmental aspects Flooding Floods Flowers & plants Forest management Forestry Fruit trees Hydrology Indonesia Influence Nurseries Peat Peat soils Peatlands Plant Roots Plant species Plants R&D Rain water Research & development Roots Seedlings Shade Shading Soil Species Sunlight Survival Timber Tree growth Trees Water levels Indonesia United States > US Michigan
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Summary:	In order to facilitate hydrological restoration, initiatives have been conducted to promote tree growth in degraded and rewetted peatlands in Indonesia. For these initiatives to be successful, tree seedlings need to be able to survive flooding episodes, with or without shade. We investigated the survival rates and the formation of adventitious roots in the case of four tree species exposed to combinations of different shading and water levels under controlled conditions in a nursery, with artificial rainwater and with peat soil as the medium. The research focused on the following questions (i) whether trees can grow on flooded peat soils; and (ii) which plant traits allow plants to cope with inundation, with or without shade. The four tree species compared (Shorea balangeran, Cratoxylum arborescens, Nephelium lappaceum and Durio zibethinus) include two natural pioneer and two farmer-preferred fruit trees. The experiment used a split-split plot design with 48 treatment combinations and at least 13 tree-level replicates. The study found that S. balangeran and C. arborescens had relatively high survival rates and tolerated saturated condition for 13 weeks, while N. lappaceum and D. zibethinus required non-saturated peat conditions. S. balangeran and C. arborescens developed adventitious roots to adapt to the inundated conditions. D. zibethinus, S. balangeran and N. lappaceum grew best under moderate (30%) shading levels, while C. arborescent grew best in full sunlight.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 Current address: Freelancer at Ponorogo, Central Java, Indonesia Competing Interests: The authors have declared that no competing interests exist. Current address: PT. Vads Indonesia, Yogyakarta, Indonesia Current address: PT. Elang Agro Semesta, Jakarta, Indonesia Current address: Volunteer on SDGs Program of South Cilacap sub-district, Central Java, Indonesia
ISSN:	1932-6203 1932-6203
DOI:	10.1371/journal.pone.0262375