Wind energy’s bestselling textbook- fully revised. This must-have second edition includes up-to-date data, diagrams, illustrations and thorough new material o

Forest loss and degradation have caused a decline in the quality of ecosystem services around the world. But fixing the problem takes more than just planting tr

Some general charscteristics of farming in a tropical environment; Shifting cultivation systems; Fallow systems; Ley systems; Systems with permanent upland cult