A vegetation description of two ecological reserves in interior British Columbia
Notice bibliographique
Résumé
The purpose of this thesis is to provide a vegetation description of two Ecological Reserves in Interior British Columbia. The Ecological Reserves studied were Trout Creek, near Penticton and Tranquille, near Kamloops. These areas were studied using quadrats placed within community types subjectively determined on the basis of species dominance and physiognomy. Soil samples were taken and brief profile descriptions made. Field data were examined subjectively and modifications of the original units made where necessary. A Bray-Curtis Ordination was done on the data from each reserve. Four communities were defined in Trout Creek. The most extensive community is the Pinus ponderosa/Agropyron spicatum community. This occurs on terraces and slopes and is dominated by Pinus ponderosa in the tree layer and Agropyron spicatum in the herb layer. Chrysothamnus nauseosus is the most common shrub. On talus slopes is the Pinus ponderosa/Pseudotsuga menziesii/Amelanchier alnifolia community. Pinus and Pseudotsuga occur together in the overstory and Amelanchier alnifolia is the most common shrub. The ground cover is sparse. In small areas of rock outcropping are Selaginella wallacei communities in which the ground cover is dominated by this vascular cryptogam. In one very small, protected area, is the Pinus ponderosa/Pseudotsuga menziesii/Calamagrostis rubescens community. This community has a dense layer of young Pinus and Pseudotsuga and a ground cover of the grass Calamagrostis rubescens. Four communities were also defined in Tranquille. On the flat valley bottom, is the Artemisia tridentata/Poa sandbergii/Stipa comata community. Artemisia tridentata dominates the shrub layer and Poa sandbergii and Stipa comata are codominants in the herb layer. There is no tree layer. This community is probably overgrazed. Most of the lower slopes of the reserve are covered by the Pinus ponderosa/Agropyron spicatum community. This community is dominated by Pinus ponderosa in the canopy and Agropyron spicatum in the herb layer. The sparse shrub layer is composed mainly of Chrysothamnus nauseosus and Artemisia tridentata. Also on the lower slopes, in small areas interspersed within the Pinus/Agropyron community is the Pinus ponderosa/ Aristida longiseta community, in which the grass Aristida longiseta becomes a codominant in the herb layer. Above about 760 meters, the vegetation is predominantly the Pseudotsuga menziesii/Pinus ponderosa/Agropyron spicatum community. Pseudotsuga becomes codominant or dominant in the canopy layer. Agropyron spicatum is still dominant in the herb layer but the clumps are smaller and more widely spaced. The Bray-Curtis Ordinations support the community breakdowns. The soils are Brunisols in Trout Creek and Regosols and Chernozems in Tranquille. Soil profile descriptions are given and data on various physical and chemical characteristics of the soils are presented. A comparison of the reserves is made. It is recommended that the Trout Creek Reserve be high priority for fencing. This is not necessary for Tranquille.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction machine sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,003 | 0,005 |
| Études des sciences et des technologies | 0,002 | 0,000 |
| Communication savante | 0,001 | 0,000 |
| Science ouverte | 0,000 | 0,001 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,010 | 0,001 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».