Drying Catchment

Drying Catchment

Evidence suggests that the climate of the Avon River Basin is changing. Long-term rainfall records show wide-spread declines in rainfall since the 1970s. Climate models predict drier winters, warmer temperatures, and more frequent and intense droughts and summer rains. The variability currently being experienced along with predicted changes must potentially change the way we farm and manage resources in the catchment.

How can we monitor progress?

Wheatbelt NRM uses the following data to help monitor the amount of water in the Avon River Basin catchment: regional catchment run-off, root-zone soil moisture, fire occurence, bushfire potential, river levels and rainfall.

Root-zone soil moisture

The average percentage of actual root zone soil moisture across sub-regions of the Avon River Basin between 2005-2015. Error bars represent standard deviation.

Source: Bureau of Meteorology Australian Landscape Water Balance (AWRA-L). The values represent average percentage soil moisture across quite large sub-regions; therefore the range of soil moisture values within each region is large. See the Bureau of Meteorology’s website to further explore patterns in soil moisture across your area of interest.

River levels and rainfall, soil moisture and fire occurrence and bushfire potential

Click here to view the map in fullscreen

The map shows data in three parts; river levels and rainfall; soil moisture and; fire occurrence and bushfire potential. Click through each numbered title to see spatial data on each topic.

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