نتایج جستجو برای: agricultural fields

تعداد نتایج: 342254  

Journal: :Public administration 2010
Philip Lowe Peter H Feindt Hilkka Vihinen

In response to wide-ranging criticism of agricultural policy, especially within Western industrialized countries, new frameworks of justification are emerging and new hybrid policy fields have been established to tackle some of the ‘externalities’ of agricultural support. However, institutional frameworks are proving slower to change, partly because this would require coordinated action across ...

Journal: :The European Physical Journal Special Topics 2017

2004
S. Eckert M. Kneubühler

On August 18, 2002, the Hyperion hyperspectral imager onboard the EO-1 platform recorded data over an intensively used agricultural area in north western Switzerland, the Limpach Valley. The sensor’s 198 spectral bands between 400 and 2500 nm (Level 1B1) and a spatial resolution of 30 m bear the potential for both a detailed land use classification and an accurate estimation of biophysical and ...

2010
MICHAEL V. PLUMMER

—Lampropeltis getula is a species of conservation concern in several parts of its wide geographic range. I describe habitat use and movement patterns of L. getula holbrooki in an agricultural landscape, a portion of which has been brought out of agriculture and reforested. Both sexes strongly preferred vegetated shrubby levee habitats, and avoided active agricultural fields. There was no eviden...

1999
N. E. Ellis

The maintenance of low-intensity farming is important for the conservation of habitats and species and is a particular issue in Europe as areas under extensive farming regimes continue to diminish. Current proposals for agricultural reform in Europe are seeking to retain and encourage extensive farming partly by seeking to redirect farm workers into non-farm activities such as leisure activitie...

2011
Mary M. Gardiner Matthew E. O'Neal Douglas A. Landis

Coccinellid communities across North America have experienced significant changes in recent decades, with declines in several native species reported. One potential mechanism for these declines is interference competition via intraguild predation; specifically, increased predation of native coccinellid eggs and larvae following the introduction of exotic coccinellids. Our previous studies have ...

2016
Khalid A. Al-Gaadi Abdalhaleem A. Hassaballa ElKamil Tola Ahmed G. Kayad Rangaswamy Madugundu Bander Alblewi Fahad Assiri

Crop growth and yield monitoring over agricultural fields is an essential procedure for food security and agricultural economic return prediction. The advances in remote sensing have enhanced the process of monitoring the development of agricultural crops and estimating their yields. Therefore, remote sensing and GIS techniques were employed, in this study, to predict potato tuber crop yield on...

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