نتایج جستجو برای: forest typology changing

تعداد نتایج: 260569  

Journal: :Forest Ecology and Management 2021

Global change represents the greatest challenge facing forest managers today. The uncertainty and variability of potential future impacts shifting climatic disturbance regimes has led resource to seek out alternative approaches sustain long-term delivery ecosystem services. We use a spatially explicit landscape simulation model, LANDIS-II, examine evaluate range effects current adaptive managem...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان 1388

copper extraction from heap 3 low grade ore at sarchechmeh is limited due to its mixed composition (copper oxide and sulphide minerals). changing this heap to a bioheap could improve the copper recovery.

Journal: :Global change biology 2013
E Louise Loudermilk Robert M Scheller Peter J Weisberg Jian Yang Thomas E Dilts Sarah L Karam Carl Skinner

Understanding how climate change may influence forest carbon (C) budgets requires knowledge of forest growth relationships with regional climate, long-term forest succession, and past and future disturbances, such as wildfires and timber harvesting events. We used a landscape-scale model of forest succession, wildfire, and C dynamics (LANDIS-II) to evaluate the effects of a changing climate (A2...

2010
Frauke Zeller Jayanta Chatterjee Marco Bräuer Ingmar Steinicke Oxana Lapteva

This paper introduces a first outline of a typology of distributed knowledge co-creation in virtual communities based on Porter‘s typology of virtual communities. The typology is based on empirical results from the analyses of social media, and a discussion of case study results from India proves the adaptability as well as usefulness of the typology. At the same time, the case study serves as ...

2013
Paul C. Van Deusen Francis A. Roesch T. Bently Wigley

Simple methods for estimating the proportion of land changing from forest to nonforest are developed. Variance estimators are derived to facilitate significance tests. A power analysis indicates that 400 inventory plots are required to reliably detect small changes in net or gross forest loss. This is an important result because forest certification programs may require additional precautions w...

2014
Endre SCHIBERNA Magdolna STARK

s and manuscripts of the oral presentations ACHDIAWAN, Ramadhani: Rattan Resource Scarcity as a Consequence of Unsustainable Development andNational Strategy: Case Study in West Kutai, East Kalimantan, Indonesia9 BOURIAUD, Laura – COSOFRET, Vasile-Cosmin – MUTU, Mihaela – NICHIFOREL, Liviu: Forest Owners’ Perceptions about the Forest Management Adaptation to ClimateChange10 BUTL...

2011
Aapo Rautiainen Iddo Wernick Paul E. Waggoner Jesse H. Ausubel Pekka E. Kauppi

Like cities, forests grow by spreading out or by growing denser. Both inventories taken steadily by a single nation and other inventories gathered recently from many nations by the United Nations confirm the asynchronous effects of changing area and of density or volume per hectare. United States forests spread little after 1953, while growing density per hectare increased national volume and t...

Journal: :J. Comb. Theory, Ser. A 2010
Kelly Kross Jordan

Let Nn denote the quotient poset of the Boolean lattice, Bn, under the relation equivalence under rotation. Griggs, Killian, and Savage proved that Np is a symmetric chain order for prime p. In this paper, we settle the question of whether this poset is a symmetric chain order for all n by providing an algorithm that produces a symmetric chain decompostion (or SCD). We accomplish this by modify...

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