نتایج جستجو برای: the ecological forest monitoring programs
تعداد نتایج: 16167887 فیلتر نتایج به سال:
Aims and Background: The present study purpose to investigate and predict the changes of metrics and Landscape change processes in the Gorganrood watershed in Golestan province. Methodology: First, land cover maps were prepared in 1990, 2000, 2010 and 2020. Then predict land cover changes for future conditions, under two scenarios (1) continuation of the current trend of change for 2040 and (...
Forest ecosystems play a key role in the global carbon cycle. Spatially explicit data and assessments of forest biomass and carbon are therefore crucial for designing and implementing effective sustainable forest management options and forest related policies. In this contribution, we present European-wide maps of forest biomass and carbon stock spatially disaggregated at 1km x 1km. The maps or...
Introduction The vegetation on the outer north coast of British Columbia is largely a complex mixture of blanket bog and upland forest. The upland forest consists of several types, including lower productivity redcedardominated stands. For the most part these redcedar forests have little or no history of forest harvesting. In recent years, however, interest has grown in determining whether thes...
most of the analyses and modeling concerning the mountain physical and human environmental changes have been based on theoretical speculation rather than scientific field observations. lack of standard observations and measurements in scattered and case specific monitoring programs offer only partially useful results for planning and management. all propositions and conclusions are hence mingle...
Negotiation, reconciliation of multiple scales through both ecological and social dimensions and minimization of power imbalances are considered critical challenges to overcome for effective governance of forest restoration. Finding the right mix of “command and control” in forest restoration vs. “environmental governance”, which includes non-state actors, regulatory flexibility, and market bas...
The regeneration of disturbed forest is an essential part of tropical forest ecology, both with respect to natural disturbance regimes and large-scale human-mediated logging, grazing, and agriculture. Pioneer tree species are critical for facilitating the transition from deforested land to secondary forest because they stabilize terrain and enhance connectivity between forest fragments by incre...
درک الگوی توزیع مکانی ماکروفون خاک بدلیل اثرات آن روی فرآیندهای اکوسیستم بسیار مهم است. لیکن اطلاعات کمی در این خصوص وجود دارد. درمورد تنوع زیستی ارگانیسم ها وجانداران خاکزی که ازاجزای مهم وکلیدی درهرسیستم اکولوژیکی هستند و در بهبود حاصلخیزی خاک و تولیدات زمین وپایداری اکوسیستم ها(ازطریق فرآیندهای بیولوژیک)نقش عمده دارند تحقیقات کمی انجام شده است. این تحقیق جهت بررسی الگوی مکانی پارامترهای تنوع...
The challenges of managing natural resources of protected areas not only come from the inside of the protected boundaries, but also from the surrounding territories because most of protected lands are open systems that face threats from adjacent areas. The lands of such open systems alter water quality and flow regimes, increase the likelihood of invasive plant and animal range expansions, redu...
Forest restoration projects are occurring throughout the world. Restoration projects can vary greatly depending on the type of forest and the type of stressors that have caused ecosystem degradation and the need for restoration. Because of this variability, and because objective criteria for determining the success of restoration projects are lacking, it is difficult to evaluate the overall suc...
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