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Pollution
Overview
Certain actions and building operations produce changes in the local environment which, although invisible to the eye, may affect the growth of flax and other crops as well as wood collection. The Ecology skill is used to test for pollution in a location.
Pollution is not well understood; see below for discussion on what does and does not appear to cause it. However, based on what may be tested using the Ecology skill, we can assume that there are eight environmental categories where pollution can occur:
- Heavy metal pollution
- Soil acidity
- Groundwater level
- Phosphorus level
- Soot level
- Nitrogen level
- Potassium level
- Salinity
Tests
around modern sheep farms/thistle gardens at 1563, 1958
other buildings nearby: silkworm farms, beetle terrariums, khefre's locker, papy tanks and rabbit hutches
- Acid 6667
- soot 5
- nitrogen 190
- potassium untested
- all other levels normal
Soot and nitrogen seemed to center around the sheep farms/thistle gardens acid was a rather large blob and couldn't pinpoint its center. a peresphone furnace nearby had higher level acidity, but it dropped off closer to the furnace then the sheep farms/thistle gardens
Nitrogen
Flax and Vegetable production is sensitive to varying Nitrogen (N) levels. Baseline Nitrogen is 100. I have measured levels ranging from 72 to 341 at various times and locations. There appear to be three sensitivity levels associated with flax/veggie production.
- Low Nitrogen: N <= 90
- Normal Nitrogen: 91 <= N <= 109
- High Nitrogen: N >= 110
I have done extensive testing of flax production under N values between 82 and 128. Of the 8 original flaxes only Old Egypt and Nile Green are not sensitive to Low or High N. Constitution Peak is sensitive to Low N but not sensitive to High N. The other five strains are not productive under either Low or High N. Several of my crossbreed strains are productive under High N but not Low N. A few are productive under all N levels I have tested them on.
This does not exclude other pollution types being factors in poor flax/veggie production
(DonQuiHotep - 2 Feb 2016)
