While this comprehensive survey reveals interesting details
concerning crops farmed; facilities and utilities available; and
threats faced by the local population, it is recommended that a
follow-up study survey is conducted. Since the Yellow River Delta
undergoes major changes (such as erosion and accretion rates,
agriculture intensification, new infrastructure and urban center
development), the rate of vulnerability of the rural population will
undergo similar change. Future studies amongst a larger sample
size over different seasons should provide results that are more
representative with a smaller margin of error, since the answers of
the respondents can be influenced depending on the season,
weather conditions, lack of awareness to hazards and so on. The
results of this questionnaire can be used to attune the questions of
such a follow-up study, which has a larger sample size and a
smaller margin of error. The opinion of the rural population about
their vulnerability to various hazards is useful for future studies, as
such a result can be compared to an in-depth analysis of social
vulnerability of the Yellow River Delta by means of combining
different types of data, such as statistical (e.g. census) and spatial
data (e.g. earth observation). The results of vulnerability assess-
ments that are based on those types of data can then be compared
to the results of future household surveys, and to recommend and
evaluate mitigation efforts that
level of awareness, and safety of the rural population in the Yellow