The average surface areas of different FMAS types are given in Table 2. Overall, rice fields dominated FMAS areas, except in households that have acquired large bid-rent ponds (Vietnamese lowland only).
Virtually all FMAS were constructed with steep banks and flat bottoms so that water areas did not change continuously over the seasons but rather, the whole system tended to be either flooded ordry.
Rainfed rice fields (found mostly in Cambodia and Thailand in our study) were under water during the wet season but dry for the rest of the year, while irrigated rice fields (found mostly in Vietnam) were under water for multiple crop cycles throughout the year with intermittent, short dry periods.
Household ponds and ponds in rice fields typically held water year-round, but ponds in rice fields were often drained intentionally to harvest fish.
The average surface areas of different FMAS types are given in Table 2. Overall, rice fields dominated FMAS areas, except in households that have acquired large bid-rent ponds (Vietnamese lowland only). Virtually all FMAS were constructed with steep banks and flat bottoms so that water areas did not change continuously over the seasons but rather, the whole system tended to be either flooded ordry. Rainfed rice fields (found mostly in Cambodia and Thailand in our study) were under water during the wet season but dry for the rest of the year, while irrigated rice fields (found mostly in Vietnam) were under water for multiple crop cycles throughout the year with intermittent, short dry periods. Household ponds and ponds in rice fields typically held water year-round, but ponds in rice fields were often drained intentionally to harvest fish.
การแปล กรุณารอสักครู่..
