نتایج جستجو برای: permanent plot
تعداد نتایج: 92633 فیلتر نتایج به سال:
Permanent sample plots were installed in two generations of operationally-established loblolly pine plantations across the southeastern US. The first population, established with non-genetically improved seedlings, did not receive mid-rotation fertilizer or competition control treatments. Approximately 20 years later, using consistent protocols for plot locations and tree measurements, permanen...
Aims The coastal Brazilian rainforest on white-sand (restinga) ranks among the most fragmented forest types in the tropics, owing to both the patchy distribution of sandy soils and widespread coastal development activities. Here we study the environmental and evolutionary determinants of a forest tree assemblage at a single restinga forest in Southeastern Brazil. We also explore the ability of ...
The paper analyzes the elements of stand structure and proposes silvicultural measures to improve conditions in black locust (Robinia pseudoacacia L.) common hackberry (Celtis occidentalis aged 28 years Subotica-Horgos sands. research was performed on three permanent experimental plots which selective thinning (T1 T2) experimentally two plots, while one left as a control plot (C).Initially, 528...
This special issue focuses on long-term ecological monitoring in the tropics, with a particular focus, appropriate to Plants, People, Planet, what it can offer both local people and decision makers tropical countries. Two of contributed papers emphasise role that long-term, permanent plots play bringing together researchers, policymakers communities, based examples from Peru Colombia (Baker et ...
This paper addresses the problem of plot controllable story generation model. Since most of the previous works focus on logically flawless plot, the main challenge is the need for more generic method to generate dramatic and interesting plot. Motivated by this background, this paper proposes a computational method for plot controllable story generation. Firstly, we use planning as a model of pl...
Leaf area index (LAI) - defined as one half of the total green leaf area per unit ground surface area - can be determined by direct or indirect methods. Three major sources of errors exist in indirect LAI measurements: within-shoot clumping, beyond-shoot clumping and non-photosynthetic components. The effect of non-photosynthetic components on LAI measurements can be described by the woody-to-t...
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