Bladder Saltbush Regeneration, 1970, 1983 and 1987. VIS_ID 4119, 4120, and 4121

This study reviews the distribution of healthy bladder saltbush on the Riverine Plain of south-east Australia towards the end of 1986, as well as the characteristics of regeneration following the saltbush dieback of 1977-83. The area of bladder saltbush increased by 53 percent, from 0.53 to 0.81 million ha, in the period 1983-86. A further 0.32 million ha, which previously supported saltbush, failed to regenerate. Variations in the pattern and progress of regeneration were closely related to variations in soil type and the effects of pre- and post-dieback grazing. Although the cause of dieback remains unknown, it would appear that much of the decline in the distribution of bladder saltbush could be attributed to post-dieback mismanagement of affected stands.\r\nThe dataset consists of the report and one map showing bladder saltbush regeneration 1987.\r\nThis dataset is related to the Bladder Saltbush Dieback dataset. VIS_ID 4119, 4120 and 4121

本研究梳理了1986年末澳大利亚东南部河滨平原上健康膀胱盐肤木（bladder saltbush）的分布情况，以及1977-1983年盐肤木衰退后其天然更新的特征。1983-1986年间，膀胱盐肤木的分布面积从53万公顷增至81万公顷，增幅达53%。另有曾分布有盐肤木的32万公顷区域未能完成天然更新。天然更新的格局与进程差异，与土壤类型的变化以及衰退前后的放牧影响密切相关。尽管盐肤木衰退的成因仍不明晰，但膀胱盐肤木分布面积大幅缩减的主要原因，似乎可归结为衰退后对受影响群落的不当管理。本数据集包含一份研究报告与一张标注1987年膀胱盐肤木更新情况的地图。本数据集与《膀胱盐肤木衰退数据集》相关联，其VIS_ID为4119、4120及4121。