Multiple‐use grasslands: integrating forage,biofuel,and carbon/ phosphorus sinks

摘要：

Crop‐livestock integration has declined in North America over the last century but economic and environmental priorities may reverse that trend (Russelle et al., 2007).Landowners, especially in drier climates ill suited to row crops, can reduce risks by integrating crops such as biofuels with their current livestock priorities (Allen et al.,2007).If biofuel cropping is to succeed in sub‐humid and semi‐arid climates and on a wide scale, it must integrate into existing systems, initially as a secondary crop until biofuel feedstock markets become stable.Landowner culture (Esterchild and Stanley‐Stevens, 2005) and unpredictable climate leave no other choice.In drought years, keeping herds and flocks alive will take priority for socio‐cultural and economic reasons while excess forage in high rainfall years can provide inexpensive biofuel stocks.Our challenge will be to design biofuel cropping systems that can best integrate into entrenched animal farming systems while still providing constant fuel supplies to future conversion plants.

关键词： grazing biomass environmental mitigation

作者: J.P.Muir B.Lambert G.W.Evers T.J.Butler K.F.Bronson L.Stanley-Stevens R.D.Wittie

作者单位: Texas Agri Life Research,T X USA Texas Agri Life Research,T X USA;T arleton State University,T X USA The Noble Foundation,OK USA Tarleton State University,T X USA

会议类型: 国际会议

会议名称: 2008世界草地与草原大会

会议地点: 呼和浩特

会议语种:英文

在线出版日期: 2008-06-29（万方平台首次上网日期，不代表论文的发表时间）