The environmental risks associated with genetically-engineered( GE) organisms have been controversial,and so have the models for the assessment of these risks.
Greenhouse horticultural production currently represents an important and growdng sector of Canada's food and plant producproduction systems.Since 2006,the
<正>Nature conservation needs people who care about nature,and the efforts to convince people to care about the fate of nature has extensively relied on selecte
<正>Monitoring.We,ecologists,hear the word nearly every day.From the most unexpected corners this word springs out,much used and abused.One one hand,it is often
<正>The condition of our Earth is changing,and it ischanging due to human dominance.We realised thatour influence on biota is overwhelming,building up toa mass