Chir pine and banj oak responses to pre-monsoon drought across slope aspects and positions in Central Himalaya.
Hill base
Hydraulic safety
Osmotic adjustment
Soil water potential
Water potential
Journal
Environmental monitoring and assessment
ISSN: 1573-2959
Titre abrégé: Environ Monit Assess
Pays: Netherlands
ID NLM: 8508350
Informations de publication
Date de publication:
03 Jan 2023
03 Jan 2023
Historique:
received:
16
08
2022
accepted:
16
12
2022
entrez:
3
1
2023
pubmed:
4
1
2023
medline:
6
1
2023
Statut:
epublish
Résumé
The difference in maintaining a safety margin with regard to hydraulic conductance between pine and oak species influences their distribution in a region. Chir pine (Pinus roxburghii) and banj oak (Quercus leucotrichophora) are the principal species of Central Himalayan forests between 1000 and 2000 m elevations. Nearly 80% of annual precipitation of ~ 1400 mm in the region occurs during monsoon, from mid-June to September, whereafter droughts of varying length and intensity are common. The main objective of the study is to find out the responses of these two evergreen tree species to pre-monsoon (March to mid-June) water stress and topographical heterogeneity that occur in Central Himalaya. We measured soil and tree water potential and osmotic adjustment across five seasons on three slope positions, namely, hill base, mid-slope, and hill top, on north and south slope aspects. Chir pine showed an early response to pre-monsoon drought by restraining daily change in Ψ to 0.89 MPa, while predawn Ψ (Ψ
Identifiants
pubmed: 36595133
doi: 10.1007/s10661-022-10860-9
pii: 10.1007/s10661-022-10860-9
doi:
Substances chimiques
Soil
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
258Informations de copyright
© 2023. The Author(s), under exclusive licence to Springer Nature Switzerland AG.
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