Using GIS and geostatistics to study spatial variation of soil test phosphorus in grassland
Introduction There is little information on spatial variation of soil test phosphorus.This is now important because of the use of soil test phosphorus as a basis for national and EU policies such as the recently introduced Nitrate Directive ( Statutory Instrument 378 of 2006).Systematic soil sampling methods such as grid sampling have been proposed to better evaluate soil fertility (Wollenhaupt et al.,1994).
spatial variation soil test phosphorus GIS geostatistics
W.Fu H.Tunney C.Zhang
Teagasc,Johnstown Castle Research Centre,Wexford,Ireland;Department of Geography,NUI,Galway,Ireland Teagasc,Johnstown Castle Research Centre,Wexford,Ireland Department of Geography,NUI,Galway,Ireland
国际会议
呼和浩特
英文
2008-06-29(万方平台首次上网日期,不代表论文的发表时间)