Rockrose land management : contribution of periodic harvesting to increase value and to control Cistus ladanifer L. shrublands

article

Frazão, David F.
Gonçalves, J.C.
Silva, Amélia M.
Delgado, F.M.G.

MDPI

FRAZÃO, David Franco [et al.] (2023) - Rockrose land management : contribution of periodic harvesting to increase value and to control Cistus ladanifer L. shrublands. Forests. 14, 638. DOI https://doi.org/10.3390/f14030638

cv-prod-3188734

10.3390/f14030638

Rockrose land management : contribution of periodic harvesting to increase value and to control Cistus ladanifer L. shrublands

Cistaceae
Labdanum
Photosynthetic biomass
Productivity
Seeds

CENTRO-01-0145-FEDER-000020

2023-03-24T15:33:24Z
2023-03-24T15:33:24Z
2023
2023-03-24T11:47:30Z

: Cistus ladanifer L. (Cistaceae) occupies extensive areas as a dominant species (shrublands) or is associated to other major forest typologies in the Iberian Peninsula. Cistus ladanifer shrublands are mostly present in oligotrophic lands with little valorisation and management and as they develop over the years (up to 20-years-old) they promote the ignition and perpetuation of fire. To contribute to the proper management and valorisation of such systems, a 5-year-old dense shrubland was evaluated for its labdanum resin, seeds, and biomass productivity using different non-destructive harvest periodicities (annual and biennial) and seasons (early, mid-, and late summer), in a two-year case-study. Annual harvest modality maximized labdanum resin productivity (reaching 230 ± 50 kg·ha−1 ·2 years−1 at late summer) and photosynthetic biomass productivity. In contrast, a biennial harvest yielded significant amounts of more diversified products. It maximized seeds productivity (reaching 75 ± 41 kg·ha−1 ·2 years−1 independently of the summer season) and lignified biomass. However, it also reached a labdanum resin productivity of 134 ± 20 kg·ha−1 ·2 yearrs−1 at late summer and a photosynthetic biomass productivity around two times lower than the annual harvest. In this study, we propose two modalities of periodic harvest to be considered as proper long cycle management practices of rockrose lands. It intends to minimize fire risks, break the vegetation auto-succession mechanism, and increase profit from nonproductive lands based on three direct outputs with a myriad of applications and valorisation pathways.
info:eu-repo/semantics/publishedVersion

openAccess
http://creativecommons.org/licenses/by/4.0/

eng