Drainage for agricultural purposes is the main reason
for loss of
wetlands. You can understand why some farmers
may want to see these areas dry. They would have more land to use for
producing crops. Drainage also eliminates a source of weeds and
obstacles. This allows farmers to get their equipment onto the fields
earlier in spring through dry areas.
However, agriculture is not entirely to blame for wetland loss. Other human activities have also contributed to wetland loss in the province. Economic uses such as
peat extraction, timber production, oil and gas exploration and development as well as waste disposal, water contamination and silting all contributed to shrinking and loss of wetlands. The
climate may also play a role. Many dry years in a row can reduce the number and size of wetlands.