Landscape structure and dynamics on the Qinghai-Tibetan Plateau

2016 ◽  
Vol 339 ◽  
pp. 7-22 ◽  
Author(s):  
Alan Kwok Lun Cheung ◽  
Gary Brierley ◽  
David O’Sullivan
Keyword(s):  
Tibetan Plateau ◽  
Landscape Structure ◽  
Structure And Dynamics

scholarly journals EFEITO ESPACIAL DO PINUS NA PAISAGEM DO PARQUE NACIONAL DA LAGOA DO PEIXE, RS / SPATIAL EFFECT OF THE PINE ON THE LANDSCAPE OF THE PARQUE NACIONAL DA LAGOA DO PEIXE, RS

2016 ◽  
Vol 2 (2) ◽  
pp. 194
Author(s):  
Marcelo Dutra da Silva ◽  
Marcos Paulo Rodrigues Lima
Keyword(s):  
Landscape Structure ◽  
National Park ◽  
Coastal Region ◽  
Rio Grande ◽  
Spatial Effect ◽  
Rio Grande Do Sul ◽  
System Protection ◽  
Natural Processes ◽  
Structure And Dynamics ◽  
Natural Movement

Na região costeira do Rio Grande do Sul os impactos causados pelo cultivo e dispersão do Pinus estão cada vez mais evidentes. Na região do Parque Nacional da Lagoa do Peixe extensas áreas de cultivo de Pinus alteraram a estrutura e a dinâmica da paisagem local. O entorno da Unidade está cercado e dentro as áreas de cultivo representam uma forte ameaça. O vento distribui as sementes, que vêm de toda parte, dificultando o manejo e a proteção do sistema. O efeito espacial do Pinus é intenso e as alterações mais severas podem ser observadas na margem da Lagoa do Peixe, junto ao campo de dunas, na faixa longitudinal de Pinus, paralela ao oceano. Nessa faixa o deslocamento natural das dunas parece ter sido modificado, acumulando areia, que aos poucos está superando o obstáculo e talvez seja uma questão de tempo até que alcancem um volume perigoso, capaz de invadir a lagoa. A exclusão do Pinus, aos poucos, vem sendo realizada, porém sem um plano estratégico de erradicação e sem considerar, também, a necessidade de restaurar a paisagem e reabilitar os processos naturais, perdidos na decomposição do desenho espacial original.Abstract:The impacts caused by the cultivation and dispersion of pines are increasingly evident in the coastal region of Rio Grande do Sul. Currently, the region of Lagoa do Peixe National Park has been affected by extensive pine cultivation areas that changed local landscape structure and dynamics. Not only pines surround the area but also remaining cultives inside the unit represent a threat. The wind distributes the seeds, which makes management and system protection a complicated matter. The pines spatial effect is intense and the most severe changes may be observed at the margin of the pond, next to the dunes, in the pines longitudinal range, parallel to the ocean. In this area, the dune natural movement appears to have been modified, settling the once drifting sand, which is slowly overcoming the obstacles. Maybe it is a matter of time until it reaches a dangerous volume, able to overrun the lagoon. The exclusion of pines gradually have been performed. However, it is urgent to develop a strategic plan of eradication and to consider the need to restore the landscape therefore rehabilitating natural processes lost in the decomposition of the original spatial design.Keywords: Cultivationof Pinus; CoastalLandscapes; Coast of Rio Grande do Sul.

Vegetation landscape structure and dynamics in sandy forest-steppe ecotone

2003 ◽  
Vol 14 (4) ◽  
pp. 303-306
Author(s):  
Zou Chun-jing ◽  
Han Shi-jie ◽  
Xu Wen-duo ◽  
Li Dao-tang
Keyword(s):  
Landscape Structure ◽  
Forest Steppe ◽  
Structure And Dynamics ◽  
Vegetation Landscape ◽  
Sandy Forest

Nucleosome dynamics

2006 ◽  
Vol 73 ◽  
pp. 109-119 ◽  
Author(s):  
Chris Stockdale ◽  
Michael Bruno ◽  
Helder Ferreira ◽  
Elisa Garcia-Wilson ◽  
Nicola Wiechens ◽  
...  
Keyword(s):  
High Resolution ◽  
Chromatin Structure ◽  
Current Knowledge ◽  
Dynamic Properties ◽  
Structure And Dynamics ◽  
Nucleosome Dynamics ◽  
Sharp Focus ◽  
Recent Advances ◽  
Insight Into ◽  
Chromatin Structure And Dynamics

In the 30 years since the discovery of the nucleosome, our picture of it has come into sharp focus. The recent high-resolution structures have provided a wealth of insight into the function of the nucleosome, but they are inherently static. Our current knowledge of how nucleosomes can be reconfigured dynamically is at a much earlier stage. Here, recent advances in the understanding of chromatin structure and dynamics are highlighted. The ways in which different modes of nucleosome reconfiguration are likely to influence each other are discussed, and some of the factors likely to regulate the dynamic properties of nucleosomes are considered.

Structure and dynamics of phosphate glasses

1998 ◽  
Vol 77 (2) ◽  
pp. 357-362 ◽  
Author(s):  
A. Matic, L. Borjesson
Keyword(s):  
Phosphate Glasses ◽  
Structure And Dynamics
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