نتایج جستجو برای: forest typology changing
تعداد نتایج: 260569 فیلتر نتایج به سال:
The consensus among most scientists is that the global climate is changing in response to a rapid increase in greenhouse gas emissions over the past 150 years. This perspective has prompted research on potential changes in future forest conditions so that management interventions might be developed to protect desired ecosystem services. Some of the most significant forest trends expected in res...
Woody lianas are critical to tropical forest dynamics because of their strong influence on forest regeneration, disturbance ecology, and biodiversity. Recent studies synthesizing plot data from the tropics indicate that lianas are increasing in both abundance and importance in tropical forests. Moreover, lianas exhibit competitive advantages over trees in elevated CO2 environments and under str...
BACKGROUND Quantifying changes in forest bird diversity is an essential task for developing effective conservation actions. When subtle changes in diversity accumulate over time, annual comparisons may offer an incomplete perspective of changes in diversity. In this case, progressive change, the comparison of changes in diversity from a baseline condition, may offer greater insight because chan...
Although direction plays an important role in the semantics of prepositions and verbs, there are not many precise and systematic treatments of this notion. This article offers a characterization and typology of directionality, based on two algebraic properties of spatial paths: cumulativity and reversability. This typology makes clear how directionality relates to the aspectual property of teli...
The back cover of this book characterizes it as ‘an up-to-date critical introduction to linguistic typology’. The title might suggest that it gives equal coverage to morphology and syntax, but it is mainly about syntax. Chapter 1, ‘Introducing linguistic typology’, is a useful introduction to typology. For someone new to the area, it lays out the object of linguistic typology and discusses some...
Case studies of land use change have suggested that deforestation across Southern Mexico is accelerating. However, forest transition theory predicts that trajectories of change can be modified by economic factors, leading to spatial and temporal heterogeneity in rates of change that may take the form of the Environmental Kuznets Curve (EKC). This study aimed to assess the evidence regarding pot...
There are many task-oriented dialog systems, but few of them can cope with the issues such as the multiple-topic issue, the topic changing issue, the information sharing among different topics, and the difference in importance for different information items. To provide efficient solutions, a plan-based dialog management structure named Topic Forest is proposed, which makes the mixed-initiative...
This study focuses on the logging sector by analyzing timber harvesting margins in the southern United States between 1977 and 2001. The real growth rate of harvesting margins has been negative for pine pulpwood, while positive for pine sawtimber, hardwood pulpwood, and hardwood sawtimber. Harvesting margins for pulpwood are more stable over time and more integrated spatially when compared with...
BACKGROUND Sex work in exchange for kind and cash has long been practiced in Nepal. The HIV prevention program in Nepal is focused mainly on these two typologies of sex work. There might be more typologies of sex work beyond streets and establishments seeking research and programmatic attention. The objective of the study is to explore the differentiated typologies of sex work. METHODS This i...
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