Soil seed bank characteristics in two central African forest types and implications for forest restoration
This study evaluates the characteristics of soil seed bank in two types of central African rainforests: Celtis forest on clay soils and Manilkara forest on sandy soils. In each study site, 30 samples were collected per soil layers (litter, 0–5 cm, 5–10 cm and 10–20 cm depth). The species diversity and abundance of the soil seed bank were estimated after soil samples were brought to germination. We globally observed 297 seedlings of 53 species for the Celtis forest and 222 seedlings of 39 species for the Manilkara forest. The total densities of germinated seeds were 330 seedlings m−2 and 247 seedlings m−2, respectively. Herbaceous species dominated with percentages of 41.0 and 45.3%, respectively in the Manilkara forest and the Celtis forest. Both forest types displayed a regeneration potential through the soil seed bank. However, this potential seems higher in the Celtis forest. Pioneer taxa were more abundant in the soil seed bank of the Celtis forest (13 woody pioneer species) than the Manilkara forest (9 woody pioneer species). The values of Sorensen similarity index between the standing tree vegetation and the soil seed bank in each site were relatively low: 11.0% for the Celtis forest and 8.8% for the Manilkara forest. But these similarity values were higher when only the pioneer species were considered: 46.8% in the Celtis forest and 38.9% in the Manilkara forest. The highest species richness were obtained in the first two soil layers (0–10 cm depth) while 21.8% and 21.4% of the species were exclusively found in the deepest layer (10–20 cm) in the Celtis forest and the Manilkara forest, respectively. Among the timber species found in the forest, only three were observed in the soil seed bank of the two sites: Nauclea diderrichii, Erythrophleum suaveolens and Staudtia kamerunensis. N. diderrichii was particularly abundant in the soil seed stock of the two sites (14.4–34.4 seeds m−2). Results suggested that to improve regeneration of timber species, planting in open forest habitats with seedlings coming from tree nursery should be more efficient.
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Subjects: | K01 - Foresterie - Considérations générales, F40 - Écologie végétale, forêt tropicale humide, graine, régénération naturelle, dissémination des graines, http://aims.fao.org/aos/agrovoc/c_7976, http://aims.fao.org/aos/agrovoc/c_6946, http://aims.fao.org/aos/agrovoc/c_5090, http://aims.fao.org/aos/agrovoc/c_6932, http://aims.fao.org/aos/agrovoc/c_1432, |
Online Access: | http://agritrop.cirad.fr/588544/ http://agritrop.cirad.fr/588544/1/Douh%26al%282018%29SoilSeedBanksNorthernCongo.pdf |
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dig-cirad-fr-5885442024-01-29T01:09:08Z http://agritrop.cirad.fr/588544/ http://agritrop.cirad.fr/588544/ Soil seed bank characteristics in two central African forest types and implications for forest restoration. Douh Chauvelin, Daïnou Kasso, Loumeto Jean-Joël, Moutsambote Jean-Marie, Fayolle Adeline, Tosso Félicien, Forni Eric, Gourlet-Fleury Sylvie, Doucet Jean-Louis. 2018. Forest Ecology and Management, 409 : 766-776.https://doi.org/10.1016/j.foreco.2017.12.012 <https://doi.org/10.1016/j.foreco.2017.12.012> Soil seed bank characteristics in two central African forest types and implications for forest restoration Douh, Chauvelin Daïnou, Kasso Loumeto, Jean-Joël Moutsambote, Jean-Marie Fayolle, Adeline Tosso, Félicien Forni, Eric Gourlet-Fleury, Sylvie Doucet, Jean-Louis eng 2018 Forest Ecology and Management K01 - Foresterie - Considérations générales F40 - Écologie végétale forêt tropicale humide graine régénération naturelle dissémination des graines http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_6946 http://aims.fao.org/aos/agrovoc/c_5090 http://aims.fao.org/aos/agrovoc/c_6932 Afrique centrale http://aims.fao.org/aos/agrovoc/c_1432 This study evaluates the characteristics of soil seed bank in two types of central African rainforests: Celtis forest on clay soils and Manilkara forest on sandy soils. In each study site, 30 samples were collected per soil layers (litter, 0–5 cm, 5–10 cm and 10–20 cm depth). The species diversity and abundance of the soil seed bank were estimated after soil samples were brought to germination. We globally observed 297 seedlings of 53 species for the Celtis forest and 222 seedlings of 39 species for the Manilkara forest. The total densities of germinated seeds were 330 seedlings m−2 and 247 seedlings m−2, respectively. Herbaceous species dominated with percentages of 41.0 and 45.3%, respectively in the Manilkara forest and the Celtis forest. Both forest types displayed a regeneration potential through the soil seed bank. However, this potential seems higher in the Celtis forest. Pioneer taxa were more abundant in the soil seed bank of the Celtis forest (13 woody pioneer species) than the Manilkara forest (9 woody pioneer species). The values of Sorensen similarity index between the standing tree vegetation and the soil seed bank in each site were relatively low: 11.0% for the Celtis forest and 8.8% for the Manilkara forest. But these similarity values were higher when only the pioneer species were considered: 46.8% in the Celtis forest and 38.9% in the Manilkara forest. The highest species richness were obtained in the first two soil layers (0–10 cm depth) while 21.8% and 21.4% of the species were exclusively found in the deepest layer (10–20 cm) in the Celtis forest and the Manilkara forest, respectively. Among the timber species found in the forest, only three were observed in the soil seed bank of the two sites: Nauclea diderrichii, Erythrophleum suaveolens and Staudtia kamerunensis. N. diderrichii was particularly abundant in the soil seed stock of the two sites (14.4–34.4 seeds m−2). Results suggested that to improve regeneration of timber species, planting in open forest habitats with seedlings coming from tree nursery should be more efficient. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/588544/1/Douh%26al%282018%29SoilSeedBanksNorthernCongo.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1016/j.foreco.2017.12.012 10.1016/j.foreco.2017.12.012 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.foreco.2017.12.012 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1016/j.foreco.2017.12.012 |
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K01 - Foresterie - Considérations générales F40 - Écologie végétale forêt tropicale humide graine régénération naturelle dissémination des graines http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_6946 http://aims.fao.org/aos/agrovoc/c_5090 http://aims.fao.org/aos/agrovoc/c_6932 http://aims.fao.org/aos/agrovoc/c_1432 K01 - Foresterie - Considérations générales F40 - Écologie végétale forêt tropicale humide graine régénération naturelle dissémination des graines http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_6946 http://aims.fao.org/aos/agrovoc/c_5090 http://aims.fao.org/aos/agrovoc/c_6932 http://aims.fao.org/aos/agrovoc/c_1432 |
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K01 - Foresterie - Considérations générales F40 - Écologie végétale forêt tropicale humide graine régénération naturelle dissémination des graines http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_6946 http://aims.fao.org/aos/agrovoc/c_5090 http://aims.fao.org/aos/agrovoc/c_6932 http://aims.fao.org/aos/agrovoc/c_1432 K01 - Foresterie - Considérations générales F40 - Écologie végétale forêt tropicale humide graine régénération naturelle dissémination des graines http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_6946 http://aims.fao.org/aos/agrovoc/c_5090 http://aims.fao.org/aos/agrovoc/c_6932 http://aims.fao.org/aos/agrovoc/c_1432 Douh, Chauvelin Daïnou, Kasso Loumeto, Jean-Joël Moutsambote, Jean-Marie Fayolle, Adeline Tosso, Félicien Forni, Eric Gourlet-Fleury, Sylvie Doucet, Jean-Louis Soil seed bank characteristics in two central African forest types and implications for forest restoration |
description |
This study evaluates the characteristics of soil seed bank in two types of central African rainforests: Celtis forest on clay soils and Manilkara forest on sandy soils. In each study site, 30 samples were collected per soil layers (litter, 0–5 cm, 5–10 cm and 10–20 cm depth). The species diversity and abundance of the soil seed bank were estimated after soil samples were brought to germination. We globally observed 297 seedlings of 53 species for the Celtis forest and 222 seedlings of 39 species for the Manilkara forest. The total densities of germinated seeds were 330 seedlings m−2 and 247 seedlings m−2, respectively. Herbaceous species dominated with percentages of 41.0 and 45.3%, respectively in the Manilkara forest and the Celtis forest. Both forest types displayed a regeneration potential through the soil seed bank. However, this potential seems higher in the Celtis forest. Pioneer taxa were more abundant in the soil seed bank of the Celtis forest (13 woody pioneer species) than the Manilkara forest (9 woody pioneer species). The values of Sorensen similarity index between the standing tree vegetation and the soil seed bank in each site were relatively low: 11.0% for the Celtis forest and 8.8% for the Manilkara forest. But these similarity values were higher when only the pioneer species were considered: 46.8% in the Celtis forest and 38.9% in the Manilkara forest. The highest species richness were obtained in the first two soil layers (0–10 cm depth) while 21.8% and 21.4% of the species were exclusively found in the deepest layer (10–20 cm) in the Celtis forest and the Manilkara forest, respectively. Among the timber species found in the forest, only three were observed in the soil seed bank of the two sites: Nauclea diderrichii, Erythrophleum suaveolens and Staudtia kamerunensis. N. diderrichii was particularly abundant in the soil seed stock of the two sites (14.4–34.4 seeds m−2). Results suggested that to improve regeneration of timber species, planting in open forest habitats with seedlings coming from tree nursery should be more efficient. |
format |
article |
topic_facet |
K01 - Foresterie - Considérations générales F40 - Écologie végétale forêt tropicale humide graine régénération naturelle dissémination des graines http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_6946 http://aims.fao.org/aos/agrovoc/c_5090 http://aims.fao.org/aos/agrovoc/c_6932 http://aims.fao.org/aos/agrovoc/c_1432 |
author |
Douh, Chauvelin Daïnou, Kasso Loumeto, Jean-Joël Moutsambote, Jean-Marie Fayolle, Adeline Tosso, Félicien Forni, Eric Gourlet-Fleury, Sylvie Doucet, Jean-Louis |
author_facet |
Douh, Chauvelin Daïnou, Kasso Loumeto, Jean-Joël Moutsambote, Jean-Marie Fayolle, Adeline Tosso, Félicien Forni, Eric Gourlet-Fleury, Sylvie Doucet, Jean-Louis |
author_sort |
Douh, Chauvelin |
title |
Soil seed bank characteristics in two central African forest types and implications for forest restoration |
title_short |
Soil seed bank characteristics in two central African forest types and implications for forest restoration |
title_full |
Soil seed bank characteristics in two central African forest types and implications for forest restoration |
title_fullStr |
Soil seed bank characteristics in two central African forest types and implications for forest restoration |
title_full_unstemmed |
Soil seed bank characteristics in two central African forest types and implications for forest restoration |
title_sort |
soil seed bank characteristics in two central african forest types and implications for forest restoration |
url |
http://agritrop.cirad.fr/588544/ http://agritrop.cirad.fr/588544/1/Douh%26al%282018%29SoilSeedBanksNorthernCongo.pdf |
work_keys_str_mv |
AT douhchauvelin soilseedbankcharacteristicsintwocentralafricanforesttypesandimplicationsforforestrestoration AT dainoukasso soilseedbankcharacteristicsintwocentralafricanforesttypesandimplicationsforforestrestoration AT loumetojeanjoel soilseedbankcharacteristicsintwocentralafricanforesttypesandimplicationsforforestrestoration AT moutsambotejeanmarie soilseedbankcharacteristicsintwocentralafricanforesttypesandimplicationsforforestrestoration AT fayolleadeline soilseedbankcharacteristicsintwocentralafricanforesttypesandimplicationsforforestrestoration AT tossofelicien soilseedbankcharacteristicsintwocentralafricanforesttypesandimplicationsforforestrestoration AT fornieric soilseedbankcharacteristicsintwocentralafricanforesttypesandimplicationsforforestrestoration AT gourletfleurysylvie soilseedbankcharacteristicsintwocentralafricanforesttypesandimplicationsforforestrestoration AT doucetjeanlouis soilseedbankcharacteristicsintwocentralafricanforesttypesandimplicationsforforestrestoration |
_version_ |
1792499523787948032 |