An agro-climatologist presents findings on historical microclimate adaptation: "Following the destructive volcanic eruptions of the 1730s in Lanzarote, local farmers encountered an agricultural landscape blanketed by thick basaltic lapilli, known locally as picón. Rather than abandoning the island, cultivators excavated conical hollows into the volcanic gravel down to the buried soil and built semicircular stone walls facing the prevailing trade winds. This porous gravel layer serves as a thermal barrier and condenses Atlantic nocturnal humidity, feeding moisture directly to vine roots without supplementary irrigation. While this intensive manual system produces significantly lower harvest tonnage per hectare than modern commercial vineyards, these centuries-old plots maintain steady vegetative vigor through extended multi-year droughts that decimate conventional irrigated crops." Based on the presentation, which of the following conclusions can be drawn regarding the La Geria cultivation system?
- Its primary value lies in prioritizing ecological stability and climate resilience over maximizing crop volume.Answer
- BIts reliance on manual labor makes it an unsustainable model that the speaker recommends phasing out.
- CIt was established using recent technological innovations imported to counteract twentieth-century climate shifts.
- DIts economic success depends entirely on the physical height of the semicircular stone windbreaks.