- Identify and intercept water flows to keep moisture on the landscape
- Improve soils ability to absorb and retain water
- Reduce the impact of hot, dry winds
Found 10 results tagged with 'rain'
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Visualising yearly rainfall distribution
It becomes clear that rainfall can occur at any time throughout the year and that dry years follow periods high rainfall. With this in mind it makes a lot of sense to be approaching water catchment and management with a multi year view of charging up soil moisture during wet times to carry us through periods of below average rainfall.
Data obtained from NIWA Ferniherst dataset
Trapping water in the landscape is a valuable technique for buffering rainfall to later irrigate downhill crops and trees.
A bespoke rain gauge
I purchased a cheap stainless steel funnel with a diameter of 52mm connected to 2 meters of clear plastic tubing with a diameter of 12.5mm.
The ratio of cross-sectional area between the two diameters is 17 so each 1mm of rainfall gathered by the funnel displays as 17mm in the tubing.
The tap at the bottom is required to drain the gauge after each measuring period.
The top swale
The way of the swale
My first attempt at a small swale follows the contour line on a northwest facing slope below an existing track. Because of the small size I was able to dig this by hand over 2 periods, using an A-frame level. Over the course of the next few months we will be scattering the kitchen scraps along the length for the chooks to work over, adding their manure and nutrients from the kitchen. Finally it will be planted up in a variety of different plants from ground covers, bulbs and shrubs to fruit and firewood trees.
This excel file has multiple worksheets with numeric values and charts of sunshine hours, rainfall, monthly frost count and temperature for several South Island locations, including:
Data sourced from NIWA (http://www.niwascience.co.nz/edu/resources/climate).
This will be setup to collect water from the roof of the house as a backup drinking supply.