نتایج جستجو برای: vegetation environment relationships

تعداد نتایج: 769809  

Journal: :Anais da Academia Brasileira de Ciencias 2013
Paula C M D Mesquita Daniel C Passos Sonia Z Cechin

The choice of sampling methods is a crucial step in every field survey in herpetology. In countries where time and financial support are limited, the choice of the methods is critical. The methods used to sample snakes often lack objective criteria, and the traditional methods have apparently been more important when making the choice. Consequently researches using not-standardized methods are ...

2000
Prasad S. Thenkabail Ronald B. Smith Eddy De Pauw

The objective of this paper is to determine spectral quantities of each crop. The best of these two-band indices were further tested to see if soil adjustment or nonlinbands that are best suited for characterizing agricultural crop biophysical variables. The data for this study comes ear fitting could improve their predictive accuracy. The best of the narrow band NDVI models explained 64% to fr...

ژورنال: علوم آب و خاک 2006
حمیدرضا سالمی, , علیرضا سپاسخواه, ,

Estimation of seepage is essential prior to lining of earth canals. In Iran such investigation has been achieved in some irrigation networks using empirical relationships derived in other countries. Estimation of water loss in canal is required in design, operation and management of water distribution systems. Water seepage may be determind by using empirical equations proposed by F.A.O. These ...

2008
Tsegaye Tadesse Brian D. Wardlow Jae H. Ryu

The temporal and spatial vegetation dynamics is highly dependent on many different environmental and biophysical factors. Among these, climate is one of the most important factors that influence the growth and condition of vegetation (Propastin et al., 2006). The complexity of the relationships between vegetation and climate; climate and oceanic dynamics; and the impacts of the combination of o...

2017
Kevin J. Lane Eleanor C. Stokes Karen C. Seto Sadagopan Thanikachalam Mohan Thanikachalam Michelle L. Bell

BACKGROUND India is undergoing rapid urbanization with simultaneous increases in the prevalence of cardiovascular disease (CVD). As urban areas become home to an increasing share of the world's population, it is important to understand relationships between the built environment and progression towards CVD. OBJECTIVE We assessed associations between multiple measures of the built environment ...

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