1. Area of each bed: Generally, the area of each bed is about 6 square meters. This is because the beds in nursing homes need to take into account the activities space of the elderly, bedside tables, wardrobes and other facilities, as well as walkways and public spaces. So 100 beds need 600 square meters.

2. Ancillary facilities: In addition to beds, nursing homes need to be equipped with some ancillary facilities, such as kitchens, medical rooms and gymnasiums. These facilities usually need extra space, and depending on the size and design of the nursing home, extra area may be needed.

3. So a nursing home with 100 beds needs at least 1300 square meters of land. However, this figure is only a rough estimate, and the specific area demand may be different due to the scale, geographical location, design and other factors of nursing homes.