Publications – LGCgE

2022Conférence ER4

Auteurs : Waterlot, Christophe

Biomass valorization

Current challenges of environmental contamination & its impact on the ecosystems and human health, 4-5 juillet, Lille, 2022, (ACTI).

2021Conférence ER4

Auteurs : Choma, Caroline; Pruvot, Christelle; Delbende, François; Andrianarisoa, Sitraka

Tree rows change the soil biodiversity abundance and repartition within the first year of plantation at an experimental agroforestry site in Ramecourt (Northern France)

EURAF2020, 5th European Agroforestry Conference, 17-19 May 2021, Nuoro (Italy), 2021, (COM).

Résumé

@conference{Choma2020,

title = {Tree rows change the soil biodiversity abundance and repartition within the first year of plantation at an experimental agroforestry site in Ramecourt (Northern France)},

author = {Caroline Choma and Christelle Pruvot and François Delbende and Sitraka Andrianarisoa},

year = {2021},

date = {2021-05-17},

urldate = {2020-01-01},

booktitle = {EURAF2020, 5th European Agroforestry Conference, 17-19 May 2021, Nuoro (Italy)},

abstract = {It was largely documented that agroforestry systems promote soil biodiversity

in agroecosystems but little is known about the timing and the origin

of this improvement after the tree plantation. The aim of this study

was to measure the change in soil biodiversity abundance and repartition

during the first year of tree plantation at an experimental agroforestry

(AF) site in northern France. The experimental site is located in

Ramecourt (50° 22' N, 2° 17' E) on an 18-ha plot according to a randomized

bloc design with 3 replicates. Modalities with or without nitrogen-fixing

trees in AF treatment are compared with sole-crop (CC) and pure-forest

control (FC) plots. In November 2018, one-year-old trees and shrubs

were planted in 38 meters and 7 meters wide rows for AF and FC respectively.

Within rows, 6 species of tall trees (Quercus robur, Carpinus betulus,

Juglans regia x regia, Alnus glutinosa, Prunus avium, Robinia pseudoaccacia)

were planted 8 meters apart and were intercalated every 1 meter by

9 species of shrubs (Castanea sativa, Cornus sanguinea, Acer campestris,

Euonymus europaeus, Corylus avelana, Tilia cordata, Ligustrum vulgaris,

Salix alba, Viburnum lantana). The density of tall trees is 50 and

430 trees ha-1 for AF and FC respectively. In AF, a spring barley

was sown in February 2019 in the alley after a shallow stubble ploughing

as well as in CC plots. In FC, cover plants composed of a mixture

of melliferous and grass plant species were sown between tree rows

in April 2019. The population of earthworms, micro and macroarthropods

were measured from April to July 2019 using mustard extraction method,

Berlese and Barber traps respectively. The collected organisms were

counted, classified and identified thanks to a determination key

based on morphological criteria. The abundance and the dominancy

of each recognized families, genus or species were calculated as

well as the Shannon-index for the diversity. A total number of 833

earthworms was collected in all plots. Anecic species were dominant

(i.e. between 50% and 75% of the total number) whereas endogenic

and epigeic species were common (i.e. between 25% and 50%) and very

rare (< 5%) respectively. The abundance of earthworms was not significantly

different between AF (25.3 ind. m-2), CC (28.6 ind. m-2) and TF (19

ind. m-2). The relative abundance of the same ecological category

of worms was roughly the same for the three treatments. A total number

of 85 microarthropods was counted. Mites and collembola represented

in average 26% and 32% of the population respectively. The remaining

individuals were composed of myriapods, enchytreids and insects.

The calculated Shannon-index for the microarthropods was significantly

higher in AF (1.03) and FC (1.19) than in CC (0.26). While 7 families

of microarthropods were recorded in both AF and FC, only 3 families

were noted in CC, suggesting that at this early stage of trees development,

the population of microarthropods could benefit from more diverse

habitat and food provided by tree lines. For macroarthropods, a total

number of 11,005 individuals were collected during the 4 weeks of

sampling. Some zoological groups such as Staphylinidae, Ephistemus,

Bembidion and Araneae were only observed in AF. The abundance of

macroarthropods decreased from the beginning to the end of sampling

period in CC and FC whereas it remained stable in AF. This decrease

was probably due to the hot and dry weather conditions in July 2019.

It can be assumed that in AF, the microclimate and habitats, which

were created together by tree rows and crop canopy cover, promoted

the resilience of the installed ecosystem, allowing the maintenance

of food chain predators. The drying up of cover plants in FC or the

absence of tree rows in CC was not favourable to maintain macroarthropods

populations over time. Our study showed that the micro and macro

arthropods’ community abundance and repartition in soil react very

quickly within one year after tree plantation in AF, thanks to the

creation of favourable habitats for their development along the tree

rows. Further work is necessary to confirm these tendencies in the

following years and to identify their consequence in the ecosystem

functionning.},

note = {COM},

keywords = {ER4},

pubstate = {published},

tppubtype = {conference}

}

Fermer

It was largely documented that agroforestry systems promote soil biodiversity
in agroecosystems but little is known about the timing and the origin
of this improvement after the tree plantation. The aim of this study
was to measure the change in soil biodiversity abundance and repartition
during the first year of tree plantation at an experimental agroforestry
(AF) site in northern France. The experimental site is located in
Ramecourt (50° 22' N, 2° 17' E) on an 18-ha plot according to a randomized
bloc design with 3 replicates. Modalities with or without nitrogen-fixing
trees in AF treatment are compared with sole-crop (CC) and pure-forest
control (FC) plots. In November 2018, one-year-old trees and shrubs
were planted in 38 meters and 7 meters wide rows for AF and FC respectively.
Within rows, 6 species of tall trees (Quercus robur, Carpinus betulus,
Juglans regia x regia, Alnus glutinosa, Prunus avium, Robinia pseudoaccacia)
were planted 8 meters apart and were intercalated every 1 meter by
9 species of shrubs (Castanea sativa, Cornus sanguinea, Acer campestris,
Euonymus europaeus, Corylus avelana, Tilia cordata, Ligustrum vulgaris,
Salix alba, Viburnum lantana). The density of tall trees is 50 and
430 trees ha-1 for AF and FC respectively. In AF, a spring barley
was sown in February 2019 in the alley after a shallow stubble ploughing
as well as in CC plots. In FC, cover plants composed of a mixture
of melliferous and grass plant species were sown between tree rows
in April 2019. The population of earthworms, micro and macroarthropods
were measured from April to July 2019 using mustard extraction method,
Berlese and Barber traps respectively. The collected organisms were
counted, classified and identified thanks to a determination key
based on morphological criteria. The abundance and the dominancy
of each recognized families, genus or species were calculated as
well as the Shannon-index for the diversity. A total number of 833
earthworms was collected in all plots. Anecic species were dominant
(i.e. between 50% and 75% of the total number) whereas endogenic
and epigeic species were common (i.e. between 25% and 50%) and very
rare (< 5%) respectively. The abundance of earthworms was not significantly
different between AF (25.3 ind. m-2), CC (28.6 ind. m-2) and TF (19
ind. m-2). The relative abundance of the same ecological category
of worms was roughly the same for the three treatments. A total number
of 85 microarthropods was counted. Mites and collembola represented
in average 26% and 32% of the population respectively. The remaining
individuals were composed of myriapods, enchytreids and insects.
The calculated Shannon-index for the microarthropods was significantly
higher in AF (1.03) and FC (1.19) than in CC (0.26). While 7 families
of microarthropods were recorded in both AF and FC, only 3 families
were noted in CC, suggesting that at this early stage of trees development,
the population of microarthropods could benefit from more diverse
habitat and food provided by tree lines. For macroarthropods, a total
number of 11,005 individuals were collected during the 4 weeks of
sampling. Some zoological groups such as Staphylinidae, Ephistemus,
Bembidion and Araneae were only observed in AF. The abundance of
macroarthropods decreased from the beginning to the end of sampling
period in CC and FC whereas it remained stable in AF. This decrease
was probably due to the hot and dry weather conditions in July 2019.
It can be assumed that in AF, the microclimate and habitats, which
were created together by tree rows and crop canopy cover, promoted
the resilience of the installed ecosystem, allowing the maintenance
of food chain predators. The drying up of cover plants in FC or the
absence of tree rows in CC was not favourable to maintain macroarthropods
populations over time. Our study showed that the micro and macro
arthropods’ community abundance and repartition in soil react very
quickly within one year after tree plantation in AF, thanks to the
creation of favourable habitats for their development along the tree
rows. Further work is necessary to confirm these tendencies in the
following years and to identify their consequence in the ecosystem
functionning.

Fermer

2021Article de journal ER4

Auteurs : Glorennec, Philippe; Shendell, Derek-G.; Rasmussen, Pate E; Waeber, Roger; Egeghy, Peter; Azuma, Kenichi; Pelfrêne, Aurélie; Le-Bot, Barbara; Esteve, Williams; Perouel, Guillaume; Pernelet-Joly, Valérie; Noack, Yves; Delannoy, Matthieu; Keirsbulck, Marion; Mandin, Corinne

Towards setting public health guidelines for chemicals in indoor settled dust?

Dans: Indoor Air, vol. 31, no. 1, p. 112-115, 2021, (ACL).

Résumé

2021Article de journal ER4

Auteurs : Hechelski, Marie; Waterlot, Christophe; Dufrénoy, Pierrick; Louvel, Brice; Daïch, Adam; Ghinet, Alina

Biomass of ryegrass from field experiments: toward a cost-effective and efficient biosourced catalyst for the synthesis of Moclobemide

Dans: Green Chemistry Letters and Reviews, vol. 14, no. 1, p. 13-20, 2021, (ACL).

Résumé

2021Article de journal ER4

Auteurs : Constant, Mel; Alary, Claire; Waele, Isabelle De; Dumoulin, David; Breton, Noémie; Billon, Gabriel

To What Extent Can Micro- and Macroplastics Be Trapped in Sedimentary Particles? A Case Study Investigating Dredged Sediments

Dans: Environmental Science & Technology, vol. 55, no. 9, p. 5898–5905, 2021.