growth, development and yield in pure and mixed forest stands
نویسندگان
چکیده
objective: ecosystems with mixed species compared to the ones with pure compositions provide a broader range of options in the fields of biodiversity, conservation, protection and restoration. nearly all forest plantations are established as monocultures, but research has shown that there are potential advantages to be gained by using carefully designed species mixtures in place of monocultures. this paper reviews recent studies that compare stand development and productivity of mixed and pure plantations. results: higher stand-level productivity in mixtures has been found with species interactions. these mixtures can also improve economic return through greater individual-tree growth rates and provision of multiple commercial or subsistence products. more complex plantation mixtures of several species have been used for ecological restoration of degraded lands; these large numbers of species of different successional stages are combined to reduce the need for a series of sequential plantings. future research needs to examine many more tree species across a wider range of sites.
منابع مشابه
Growth, Development and Yield in Pure and Mixed Forest Stands
Objective: Ecosystems with mixed species compared to the ones with pure compositions provide a broader range of options in the fields of biodiversity, conservation, protection and restoration. Nearly all forest plantations are established as monocultures, but research has shown that there are potential advantages to be gained by using carefully designed species mixtures in place of monocultures...
متن کاملGrowth, Development and Yield in Pure and Mixed Forest Stands
Objective: Ecosystems with mixed species compared to the ones with pure compositions provide a broader range of options in the fields of biodiversity, conservation, protection and restoration. Nearly all forest plantations are established as monocultures, but research has shown that there are potential advantages to be gained by using carefully designed species mixtures in place of monocultures...
متن کاملsoil quality indices in pure and mixed forest stands of southern caspian region
the present study aimed to assess pure planted species (i.e., alnus subcordata l., poplus deltoids l., taxadium distichum l. rich) and a mixed natural forest (i.e., dominated by quercus castaneifolia c. a. mey. - carpinus betulus l. - parrotia persica c. a. meyer) on basis of some soil quality indices in mazandaran province, northern iran. sixteen samples per stand were taken from the top 10 cm...
متن کاملPure stands of temperate forest tree species
Pure stands of temperate forest tree species modify soil respiration and N turnover N. Brüggemann, P. Rosenkranz, H. Papen, K. Pilegaard, and K. Butterbach-Bahl Forschungszentrum Karlsruhe, Institute for Meteorology and Climate Research, Atmospheric Environmental Research (IMK-IFU), Garmisch-Partenkirchen, Germany Risø National Laboratory, Plant Biology and Biogeochemistry Department, Roskilde,...
متن کاملModeling Post-Fire Mortality in Pure and Mixed Forest Stands in Portugal—A Forest Planning-Oriented Model
Assessing impacts of management strategies may allow designing more resistant forests to wildfires. Planning-oriented models to predict the effect of stand structure and forest composition on mortality for supporting fire-smart management decisions, and allowing its inclusion in forest management optimization systems were developed. Post-fire mortality was modeled as a function of measurable fo...
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عنوان ژورنال:
international journal of advanced biological and biomedical researchناشر: casrp publishing company
ISSN 2383-2762
دوره 2
شماره 10 2014
کلمات کلیدی
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