Survival, growth and wood density of Pinus kesiya and Pinus oocarpa provenances at Kihanga Arboretum, Sao Hill, Tanzania

Mugasha, A. G.; Chamshama, S.A.O.; Iddi, S.; Nshubemuki, L.

doi:10.1016/s0378-1127(96)03841-8

Cited by 4 publications

(1 citation statement)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Pinus oocarpa has the largest latitudinal range of pines in Mesoamerica, extending from Mexico to Nicaragua (Greaves 1982;Farjon & Styles 1997). Pinus oocarpa was exported to several locations to be used in tropical forestry programmes because of its rapid growth in nutrient-poor soils (Mugasha et al 1996;Moura et al 1998). Bark beetle outbreaks occur in pine forests of Guatemala and Honduras periodically because of poor forest management and frequent fires (Haack & Paiz-Schwartz 1997).…”

Section: Site Descriptionmentioning

confidence: 99%

Changes in structure and cover of a common property pine forest in Guatemala, 1954–1996

Holder

2004

Envir. Conserv.

View full text Add to dashboard Cite

Concern about increasing rates of deforestation of tropical forests has resulted in investigations into the viability of local land-use practices and communal forms of governance. The majority of people in Guatemala live in regions where primary forests are absent. Several secondary forests in the highly populated highlands of Guatemala are communally managed forests, and people depend on forest products from these secondary forests for their livelihood. This study examines changes in forest structure and coverage of a native Pinus oocarpa Schiede communally managed forest in San Jose La Arada, Chiquimula in eastern Guatemala from 1954–1996. The pine forest is a municipal-communal property. The municipality has title to the land, however the forests are communal property. Neither forest committees in the villages nor municipal government regulations establish communal management of the pine forest; instead there are customary rules in the villages that guide forest extraction. People from the surrounding villages extract fuelwood, ocote (resin-rich wood harvested from the tree trunk and used for kindling) and timber from the pine forest. The P. oocarpa forest is situated in a seasonally dry region with nutrient-poor and highly eroded soils. Aerial photographs from 1954 and 1987 were compared to estimated changes in forest cover. Changes in forest structure are based on data collected from stand inventories conducted in 1987 and 1996. The pine forest was reduced in area by 14.4%, from 12.39 km2 in 1954 to 10.61 km2 in 1987. Additionally, stand density and basal area were reduced by 12% and 41%, respectively, from 1987–1996. Fuelwood and timber for domestic use were not extracted at a sustainable rate between 1954 and 1996 from the communally managed pine forest in this study. A sustainable-use management plan, in which all villages surrounding the forest participate, is recommended to provide future forest products for the villages.

show abstract

Section: Site Descriptionmentioning

confidence: 99%

Changes in structure and cover of a common property pine forest in Guatemala, 1954–1996

Holder

2004

Envir. Conserv.

View full text Add to dashboard Cite

show abstract

Growth and yield of nine pine species in Angola

Delgado-Matas

Pukkala

2012

Journal of Forestry Research

View full text Add to dashboard Cite

Growth of the tropical Pinus kesiya as influenced by climate and nutrient availability along an elevational gradient

Schneider

Thomas

2019

Journal of Plant Ecology

View full text Add to dashboard Cite

Aims In contrast to temperate regions, the reasons for growth reductions of individual tree species along elevational gradients in tropical mountain ranges are poorly known, especially for tropical conifers. We aimed at testing whether climatic or edaphic conditions are responsible for the reduced growth of Pinus kesiya, a widely distributed pine species of southern and south-eastern Asia, at higher elevations. Methods We analysed the stem diameter increment and the isotope discrimination against 13C (△ 13C) in tree rings of P. kesiya along an elevational gradient of ~900 to ~2000 m a.s.l. in the mountain ranges of South-Central Vietnam, and related growth to △ 13C and to climatic and edaphic variables. Important findings We found no consistent correlation patterns between the basal area increment (BAI) of the trees and temperature or precipitation. In contrast, across the elevational gradient, we obtained significantly negative correlations of BAI with △ 13C and with the C/N ratios and the δ 15N signature of the upper mineral soil. BAI was positively correlated with the concentrations of plant-available phosphorus (Pa) and of “base” cations (calcium, magnesium, potassium) in the soil. We conclude that lower temperatures at higher elevations exert an indirect effect on tree growth by inducing higher C/N ratios and by reducing the rate of nitrogen (N) and P mineralization, which may be further hampered by lower concentrations of “base” cations (upon enhanced leaching by precipitation) and a negative feedback from low availability of mineralized N and P at higher elevations. Our results may be transferable to the uppermost growth limit of P. kesiya and to other montane regions of the species’ occurrence.

show abstract

Survival, growth and wood density of Pinus kesiya and Pinus oocarpa provenances at Kihanga Arboretum, Sao Hill, Tanzania

Cited by 4 publications

References 1 publication

Changes in structure and cover of a common property pine forest in Guatemala, 1954–1996

Changes in structure and cover of a common property pine forest in Guatemala, 1954–1996

Growth and yield of nine pine species in Angola

Growth of the tropical Pinus kesiya as influenced by climate and nutrient availability along an elevational gradient

Contact Info

Product

Resources

About