State four salient features of intensive subsistence farming.

Four salient features of intensive subsistence farming are as follows:

1. This form of farming is practised widely in densely populated regions of the world. It is found in the monsoon regions of Asia such as India, China, Thailand, Bangladesh and Myanmar.
2. The size of the farms is small because the farms are usually divided into many parts to satisfy all the members of a large family.
3. The fields are cultivated throughout the year—through double cropping, multiple cropping and crop rotation—so that there is enough food for the large family.
4. Fields are mostly cultivated manually as they are too small for machines to operate. Moreover, labour is available in plenty and it is difficult for farmers to afford machines. Draft animals such as ox and mule are often used for ploughing the fields or transporting the harvest.