نتایج جستجو برای: reforestation

تعداد نتایج: 1444  

Journal: :The Forestry Chronicle 1929

Aucuparia is an important slow growth forest tree with medicinal, industrial and ornamental uses which is applied for reforestation in high altitude of mountain lands. This species has been endangered at northern forests of Iran; therefore micropropagation of adult trees by bud culture may help to reforestation. The best sterilizing treatment was the buds washing with HgCl2% 0.1 solution for 7 ...

Journal: :Ecological applications : a publication of the Ecological Society of America 2011
Laura K Gray Tim Gylander Michael S Mbogga Pei-Yu Chen Andreas Hamann

Human-aided movement of species populations in large-scale reforestation programs could be a potent and cost-effective climate change adaptation strategy. Such large-scale management interventions, however, tend to entail the risks of unintended consequences, and we propose that three conditions should be met before implementing assisted migration in reforestation programs: (1) evidence of a cl...

2004
Daowei Zhang Peter H. Pearse

This paper describes the results of an empirical investigation of the variation in reforestation among different types of forest tenure in British Columbia. Indicators of management, based on available statistical information about not satisfactorily restocked (NSR) lands and artificial reforestation on cutover lands, are compared across four major forms of tenure, ranging from relatively secur...

Journal: :journal of medicinal plants and by-products 0

aucuparia is an important slow growth forest tree with medicinal, industrial and ornamental uses which is applied for reforestation in high altitude of mountain lands. this species has been endangered at northern forests of iran; therefore micropropagation of adult trees by bud culture may help to reforestation. the best sterilizing treatment was the buds washing with hgcl2% 0.1 solution for 7 ...

2017
J. A. Ballesteros Cánovas M. Stoffel J. F. Martín-Duque C. Corona A. Lucía J. M. Bodoque D. R. Montgomery

Badlands and gullied areas are among those geomorphic environments with the highest erosion rates worldwide. Nevertheless, records of their evolution and their relations with anthropogenic land transformation are scarcer. Here we combine historical data with aerial photographs and tree-ring records to reconstruct the evolution of a badland in a Mediterranean environment of Central Spain. Histor...

2014
ZhiQiang Fang XiaoLi Yan Xin Liu

The active effect of natural regeneration on understory vegetation and diversity on clear-cut forestlands, in contrast to conifer reforestation, is still controversial. Here we investigated differences in understory vegetation by comparing naturally regenerated deciduous forests (NR) and reforested spruce plantations (SP) aged 20–40 years on 12 similar clear-cuts of subalpine old-growth spruce-...

Journal: :The Forestry Chronicle 1936

Journal: :South African Journal of Science 2012

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