Sammanfattning

BackgroundStudies on intra-specific variability in leaf functional traits is important to evaluate adaptation of the species to predicted climate change, and to develop long-term conservation strategy. The main objectives were to investigate the relationship between the functional traits leaves and C, N, P stoichiometry of Chinese fir from different geographical provenances and their relationship with the main environmental factors of provenance.ResultsIn this study, we measured 12 leaf functional traits on 36-year-old Cunninghamia lanceolata trees from 13 provenances. Analysis of variance (ANOVA) was performed to examine the variability. Redundancy analysis (RA) was computed to examine the relationship between geo-climatic factors of provenance origin and leaf functional traits while Pearson's correlation coefficient was computed to assess inter-trait correlations. The results showed statistically significant differences (P < 0.01) in intraspecific leaf traits among provenances, except leaf P content. The relationships among leaf traits are consistent with the general trend observed in the leaf economic spectrum. Mean annual temperature appeared to be a key factor that influences intraspecific leaf traits variability compared to mean annual precipitation.ConclusionThese results provide useful insights about adaptation of leaf trait of Chinese fir in a changing climatic condition. Thus, our findings shed light on the importance of interspecific trait variability in Chinese fir and the potential effect of climate change.

Nyckelord

Cunninghamia lanceolata; Leaf dry mass; Specific life area; Nutrient content

Publicerad i

BMC Plant Biology
2023, Volym: 23, nummer: 1, artikelnummer: 92
Utgivare: BMC

SLU författare

• Tigabu, Mulualem

  • Institutionen för sydsvensk skogsvetenskap, Sveriges lantbruksuniversitet
    

Globala målen

SDG13 Vidta omedelbara åtgärder för att bekämpa klimatförändringarna och dess konsekvenser


UKÄ forskningsämne

Klimatforskning
Botanik


Publikationens identifierare

DOI: https://doi.org/10.1186/s12870-023-04097-y

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/121600