Prediction of forest nutrient and moisture regimes from understory vegetation with random forest classification models

The proper choice of the tree species to be grown in a specific forest site requires a good knowledge of the tree species autecology and a comprehensive description of the local environmental conditions. In Belgium (Western Europe), ecological forest site are classified according to three major grad...

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Main Authors: Lisein Jonathan, Fayolle Adeline, Legrain Andyne, Prévot Céline, Claessens Hugues
Format: Article
Language:English
Published: Elsevier 2022-11-01
Series:Ecological Indicators
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1470160X22009190
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author Lisein Jonathan
Fayolle Adeline
Legrain Andyne
Prévot Céline
Claessens Hugues
author_facet Lisein Jonathan
Fayolle Adeline
Legrain Andyne
Prévot Céline
Claessens Hugues
author_sort Lisein Jonathan
collection DOAJ
description The proper choice of the tree species to be grown in a specific forest site requires a good knowledge of the tree species autecology and a comprehensive description of the local environmental conditions. In Belgium (Western Europe), ecological forest site are classified according to three major gradients: climate, soil nutrient (fertility) and soil moisture regimes. Understory indicator species are used by practitioners to determine nutrient and moisture regimes, but requires a significant expertise of forest ecosystems. The present work aims in a first instance at modelling the nutrient and moisture regimes based on species composition. Secondly, a practical decision support tool is developped and made available in order to predict forest nutrient and moisture regime starting from a floristic relevé. To do so, we collected floristic relevés representing understory vegetation diversity in Belgium and covering all the nutrient and moisture gradient. The combination of soil and topographic measurements with the indicator plants presence/absence support forest scientists in inferring a nutrient and moisture regime to each relevé. The resulting dataset was balanced along the different nutrient or moisture regimes and Random Forest classification models were trained in order to predict the forest site characteristic from indicator species presence (or absence). One model was fitted for the prediction of the nutrient regime, exclusively based on the floristic information. A second one was trained to classify the moisture regime. Accurate predictions confirms the appropriate use of indicator species for the Belgian forest site classification. The two models are intregrated in a web application dedicated to forest practionners. This website enables the automatic determination of nutrient and moisture regimes from the species list of a floristic relevé.
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spelling doaj.art-1259bb091e264584b49cbf5c87cc67532022-12-22T03:25:53ZengElsevierEcological Indicators1470-160X2022-11-01144109446Prediction of forest nutrient and moisture regimes from understory vegetation with random forest classification modelsLisein Jonathan0Fayolle Adeline1Legrain Andyne2Prévot Céline3Claessens Hugues4Liège University – Faculty of Gembloux Agro-Bio Tech – Unit of Forest Resources Management, Belgium; Corresponding author.Liège University – Faculty of Gembloux Agro-Bio Tech – Unit of Forest Resources Management, BelgiumLiège University – Faculty of Gembloux Agro-Bio Tech – Unit of Forest Resources Management, BelgiumForêt.Nature asbl, BelgiumLiège University – Faculty of Gembloux Agro-Bio Tech – Unit of Forest Resources Management, BelgiumThe proper choice of the tree species to be grown in a specific forest site requires a good knowledge of the tree species autecology and a comprehensive description of the local environmental conditions. In Belgium (Western Europe), ecological forest site are classified according to three major gradients: climate, soil nutrient (fertility) and soil moisture regimes. Understory indicator species are used by practitioners to determine nutrient and moisture regimes, but requires a significant expertise of forest ecosystems. The present work aims in a first instance at modelling the nutrient and moisture regimes based on species composition. Secondly, a practical decision support tool is developped and made available in order to predict forest nutrient and moisture regime starting from a floristic relevé. To do so, we collected floristic relevés representing understory vegetation diversity in Belgium and covering all the nutrient and moisture gradient. The combination of soil and topographic measurements with the indicator plants presence/absence support forest scientists in inferring a nutrient and moisture regime to each relevé. The resulting dataset was balanced along the different nutrient or moisture regimes and Random Forest classification models were trained in order to predict the forest site characteristic from indicator species presence (or absence). One model was fitted for the prediction of the nutrient regime, exclusively based on the floristic information. A second one was trained to classify the moisture regime. Accurate predictions confirms the appropriate use of indicator species for the Belgian forest site classification. The two models are intregrated in a web application dedicated to forest practionners. This website enables the automatic determination of nutrient and moisture regimes from the species list of a floristic relevé.http://www.sciencedirect.com/science/article/pii/S1470160X22009190Floristic relevéBioindicatorForest siteNutrient regimeMoisture regimeWestern Europe
spellingShingle Lisein Jonathan
Fayolle Adeline
Legrain Andyne
Prévot Céline
Claessens Hugues
Prediction of forest nutrient and moisture regimes from understory vegetation with random forest classification models
Ecological Indicators
Floristic relevé
Bioindicator
Forest site
Nutrient regime
Moisture regime
Western Europe
title Prediction of forest nutrient and moisture regimes from understory vegetation with random forest classification models
title_full Prediction of forest nutrient and moisture regimes from understory vegetation with random forest classification models
title_fullStr Prediction of forest nutrient and moisture regimes from understory vegetation with random forest classification models
title_full_unstemmed Prediction of forest nutrient and moisture regimes from understory vegetation with random forest classification models
title_short Prediction of forest nutrient and moisture regimes from understory vegetation with random forest classification models
title_sort prediction of forest nutrient and moisture regimes from understory vegetation with random forest classification models
topic Floristic relevé
Bioindicator
Forest site
Nutrient regime
Moisture regime
Western Europe
url http://www.sciencedirect.com/science/article/pii/S1470160X22009190
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AT fayolleadeline predictionofforestnutrientandmoistureregimesfromunderstoryvegetationwithrandomforestclassificationmodels
AT legrainandyne predictionofforestnutrientandmoistureregimesfromunderstoryvegetationwithrandomforestclassificationmodels
AT prevotceline predictionofforestnutrientandmoistureregimesfromunderstoryvegetationwithrandomforestclassificationmodels
AT claessenshugues predictionofforestnutrientandmoistureregimesfromunderstoryvegetationwithrandomforestclassificationmodels