The results showed that:(1)most of oases lied in 20～30 m of the downrange of groundwater depth which were decreased as circus from north to south in study area;(2)there were the sensitive region in 5～8 m and severe decline area over 10 m;(3)distributing region of nature vegetation countermarched from southwest to northeast,and its reduced area was clo.

Results showed that: data obeyed normal distribution characteristic,structure was up to spherical model, special data was second trend; Most of oases lied in 20-30metres of the downrange of groundwater depth which were decreased as circus from north to south in study area.

And the major role causing the decline of groundwater level was calculated on the basis of the above simulations.

This paper deals with the essential problems of environmental geology in Zunyi City: pollution, groundwater level recession, land collapse, drought, flood and water logging, and other geological harzards, and provides the measures of prevention and cure for these problems.