Ecological Engineering Technology for Restoring Bare Saline-alkali Patch by Shallow Harrowing and Sowing Hordeum Brevisubulatum

摘要：

Songnen Grassland is a key stockbreeding production base in northeast China. However, the grassland has been degraded and salinize-alkalized owing to the extensive cultivation and overgrazing in recent years. In this paper a method for re-establishing vegetation in bare saline-alkali patch was identified and tested. The result shows that the surface soil salinity decreases and increases with the periodic precipitation. The surface soil salinity is the lowest in later July, so it is the very better chance for Hordeum brevisubulatum to germinate, establish successfully in bare saline-alkali patch by sowing H.brevisubulatum in the bare patch after shallow harrowing. The method for applying shallow harrow and sowing H. brevisubulatum is suitable to re-establish vegetation in bare saline-alkali patch in Songnen Grassland, which is effective, low cost, sustainable economic benefit and operated easily.

关键词： Salinize-alkalized grassland Bare saline-alkali patch Hordeum brevisubulatum Shallow harrow Songnen Grassland

作者: JIANG Shicheng ZHOU Daowei

作者单位: Key Laboratory for Ecological Restoration and Ecosystem Management of Jilin Province,Key Laboratory Key Laboratory for Ecological Restoration and Ecosystem Management of Jilin Province,Key Laboratory

会议类型: 国际会议

会议名称: 2007 International Conference on Agriculture Engineering(2007年农业工程国际会议)

会议地点: 河北保定

会议语种:英文

页码: 267-273

在线出版日期: 2007-10-20（万方平台首次上网日期，不代表论文的发表时间）