The impact of different grassland land‐uses on earthworm populations in a New Zealand fragi‐ pallic soil

摘要：

In the North Otago region of New Zealand摧s South Island, the first stage of a new irrigation scheme has recently been completed allowing land use to change from dryland sheep farming (10 stock units/ha) to more intensive irrigated dairy farming ( ＞ 20 s.u./ha).The implications for the pasture and soil resources of this region ( pallic soils characterised by weak structure and a compact fragipan subsoil horizon) are largely unknown.Reported here are the impacts of different land‐use treatments on earthworm populations.

关键词： earthworms cattle grazing sheep grazing mowing fallow irrigation nitrogen New Zealand

作者: T.A.White T.L.Knight C.L.Goulter W.J.Clarke-Hill

作者单位: AgResearch Lincoln,Private Bag 4749,Christchurch 8140,New Zealand

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）