Davis says the buried structure caused the drought-stricken plants above ground to ripen at different rates, because the earth was deeper in some places than in others. This created a green-and-brown pattern in the plants that corresponded to the buried ruins. Can someone please explain why this is the case? Is it because plants try to grow their roots deeper during droughts in order to access water that can't be obt…
Assuming the round circle was built of stones, plants growing over stones tend to develop stronger, more entangled roots. These plants become hardy than similar species of plants growing nearby over loose soil. Rock crevices also tend to accumulate water which these plants should be able to use when other adjoining plants are dying. I think this is the reason why the circle became apparent during this drought.