Ecological impediments to the establishment of trees by direct seeding on pastoral sites in the Midlands of Tasmania

TL;DRAbstract

Soil degradation resulting from land clearing, tree decline and landuse practices is a serious environmental problem in Australia. While changes in land management practices are required to overcome many degradation problems, and mechanical stabilization techniques will be necessary in many instances, the establishment of trees and other woody vegetation is considered to be an important tool for combating land degradation. Direct seeding is increasingly considered to be a cheap but effective method of re-establishing woody vegetation in rural areas in Australia. It has been used with good results on many rural sites, but in some areas, such as the Tasmanian Midlands, there has been less success. Broadacre field trials and intensive field and glasshouse experiments were established to investigate direct seeding techniques in the Midlands, and to identify possible factors contributing to results. Results in the field were consistently poor, with low rates of emergence and survival, and v

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