نتایج جستجو برای: distance from agriculture

تعداد نتایج: 5743838  

Parthenium hysterophorus, an invasive alien weed, is spreading rapidly across various land uses in Nepal. To understand how Parthenium is spreading across land uses at local scale, occurrence of this weed was recorded and its’ coverage in percent estimated along trails and road network at every 100 meter distance in Kirtipur Municipality of Kathmandu valley. In addition, vegetation sampling was...

2008
R. Farrokhi

In path planning of autonomous agriculture vehicles, detecting and identifying obstacles, and taking appropriate collision avoidance measures are critical for safe operation. The goal of this research was to obtain the hay bale distance and position to be used in real-time obstacle avoidance detection for autonomous robot tractors using stereo vision system. The vision system was an omnidirecti...

2013
Frédéric Bordes Vincent Herbreteau Stéphane Dupuy Yannick Chaval Annelise Tran Serge Morand

BACKGROUND Predicting habitats prone to favor disease transmission is challenging due to confounding information on habitats, reservoirs, and diseases. Comparative analysis, which aims at investigating ecological and evolutionary patterns among species, is a tool that may help. The emergence of zoonotic pathogens is a major health concern and is closely linked to habitat modifications by human ...

2016
R. Kaschkadamoff

a population of a little over 4,000. The people of this village are pure Russians and obtain their livelihood chief!)7 by agriculture and sheep farming, a few only work outside. The fields cultivated by these people are at so great a distance from the village that it entails their absence from home for several days together, in consequence of which they are obliged to provide themselves for thi...

2015
Peter Messerli Christoph Bader Cornelia Hett Michael Epprecht Andreas Heinimann Edward Webb

In land systems, equitably managing trade-offs between planetary boundaries and human development needs represents a grand challenge in sustainability oriented initiatives. Informing such initiatives requires knowledge about the nexus between land use, poverty, and environment. This paper presents results from Lao PDR, where we combined nationwide spatial data on land use types and the environm...

This study describes the genetic relationships among 34 varieties of Lallemantia iberica using inter-retrotransposon amplified polymorphism (IRAP) and retrotransposon-microsatellite amplified polymorphism (REMAP). Samples were collected from Agriculture Research Center of Urmia city (northwest Iran). Ten IRAP and REMAP primers generated 76 scorable electrophoretic bands with 78.94% pol...

Journal: :Environmental Health Perspectives 1978
R C Loehr

Large quantities of food processing, crop, forestry, and animal solid wastes are generated in the United States each year. The major components of these wastes are biodegradable. However, they also contain components such as nitrogen, human and animal pathogens, medicinals, feed additives, salts, and certain metals, that under uncontrolled conditions can be detrimental to aquatic, plant, animal...

2015
Sebastian Lakner Stefan Kirchweger Daniel Hoop Bernhard Brümmer Jochen Kantelhardt

The paper investigates the impact of subsidies and of para-agriculture on the technical efficiency of organic farms in Switzerland, Austria and Southern Germany. The data-set consists of bookkeeping data with 1,704 observations in the years 2003 to 2005. Technical efficiency is modelled using a stochastic distance-frontier model combined with a Metafrontier-model. The results show almost no eff...

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