Which of the following did not contribute to the collapse of agricultural ecosystems during the Dust Bowl?
drought conditions lack of cover crops shelterbelt planting plowing practices burning of fields
The option that did not contribute to the collapse of agricultural ecosystems during the Dust Bowl is shelterbelt planting.
Shelterbelts were actually a conservation practice implemented to help reduce wind erosion and protect crops from harsh weather conditions. In contrast, the other options—drought conditions, lack of cover crops, plowing practices, and burning of fields—were factors that contributed to the environmental degradation and agricultural collapse during that period.