نتایج جستجو برای: protection of forests

تعداد نتایج: 21185772  

2004
Jeffrey D. Kline Ralph J. Alig Brian Garber-Yonts

December 2004 • Journal of Forestry Historically, many issues in US forest policy have involved heated exchanges between timber interests and environmental groups over the future of the nation’s national forests. Debate about whether national forests should produce timber and rural economic opportunities, or pursue other objectives such as ecological restoration and recreation, generally ignore...

Journal: :جنگل و فرآورده های چوب 0
مجید لقمانپور ؛ دانشجوی دکتری جنگل داری، دانشگاه ملی اراضی ارمنستان، کارشناس سازمان جنگل ها، مراتع و آبخیزداری، تهران، ایران محسن الهی دانش آموختة کارشناسی ارشد جنگل داری، دانشکدة منابع طبیعی، تربیت مدرس، نور، ایران علی یخکشی استاد دانشکدة منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری، ایران ژهائیر واردانیان استاد دانشگاه ملی اراضی، ایروان، ارمنستان

in order to investigate the effects of  management models on the diversity of wooden species, forests of third series of shiler, the first division mehrbanrud watershed and third and fourth series of eight division of behshahr – neka townships were studied with participatory and governmental management respectively. the diversity of the wooden species have been evaluated by diversity parametric...

Journal: :Balobe Law Journal 2022

Introduction: Protected Forest is a forest area that has variety of vital ecosystem services for the welfare and resilience society economy in future. Excessive use forests by humans without regard to ecological balance can cause havoc themselves, require economic social costs are far greater than results have been obtained. Often people who live make living around accused being one causes dest...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2011
Paul Woodcock David P Edwards Tom M Fayle Rob J Newton Chey Vun Khen Simon H Bottrell Keith C Hamer

South East Asia is widely regarded as a centre of threatened biodiversity owing to extensive logging and forest conversion to agriculture. In particular, forests degraded by repeated rounds of intensive logging are viewed as having little conservation value and are afforded meagre protection from conversion to oil palm. Here, we determine the biological value of such heavily degraded forests by...

Journal: :Forests 2022

Understory protection harvesting is a form of partial cutting that can be used in aspen (Populus tremuloides Michx.)-dominated stands have understories white spruce (Picea glauca (Moench) Voss). This practice involves removing 75% to 85% the merchantable while minimizing damage advance regeneration, addition leaving 15% 25% standing reduce potential windthrow understory. In this paper, we summa...

2011
Coeli M. Hoover

Forests play a key role in the global carbon cycle, and programs aimed at mitigating greenhouse gas emissions through the protection and enhancement of forest carbon stocks are growing in number. Adding greenhouse gas mitigation as a management objective presents managers with a considerable challenge, because data and guidelines are scarce. Long-term inventory datasets have the potential to se...

2017
Tejas Bhagwat Andrea Hess Ned Horning Thiri Khaing Zaw Min Thein Kyaw Moe Aung Kyaw Htet Aung Paing Phyo Ye Lin Tun Aung Htat Oo Anthony Neil Win Myo Thu Melissa Songer Katherine LaJeunesse Connette Asja Bernd Qiongyu Huang Grant Connette Peter Leimgruber

New and rapid political and economic changes in Myanmar are increasing the pressures on the country's forests. Yet, little is known about the past and current condition of these forests and how fast they are declining. We mapped forest cover in Myanmar through a consortium of international organizations and environmental non-governmental groups, using freely-available public domain data and ope...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2017
Jodi S Brandt Teri Allendorf Volker Radeloff Jeremy Brooks

Globally, deforestation continues, and although protected areas effectively protect forests, the majority of forests are not in protected areas. Thus, how effective are different management regimes to avoid deforestation in non-protected forests? We sought to assess the effectiveness of different national forest-management regimes to safeguard forests outside protected areas. We compared 2000-2...

2013
Yini Ma Timothy R. Filley Katalin Szlavecz Melissa K. McCormick

In this study, we examined the response of surface soils to increased leaf and wood litter input within adjacent successional forests recovering from agricultural disturbance at the Smithsonian Environmental Research Center (SERC), Maryland, USA. Previous studies at this site demonstrated an arrested development of O-horizon, even after 130 years of forest growth, and an annual loss of leaf lit...

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