陕北地区公众气候变化感知的时空变异

Spatio-temporal variation of public perception on climate change in Northern Shaanxi

目的探讨人们对气候变化的认识,为进一步协调人地关系提供科学依据。方法入户访谈、问卷调查与实测数据对比的方法。结果陕北地区居民对当地降水和温度变化的感知强度均随年龄(被调查者年龄为11～80岁)。变小而在波动中变小,其中对降水和温度的感知强度分别以≥66岁和61～65岁年龄段相对较大,且延安地区居民对降水变化的感知强度随年龄变小而变化的幅度更大;与实测数据对比,居民的温度变化感知一致率延安、榆林地区分别为22.2%和66.7%,对降水变化感知的一致率均为33.3%。结论从总体趋势上看,居民对温度、降水的感知与实测数据相对一致。在温度、降水变率较大的时段,居民的感知差异也较大。

Aim In order to supply a scientific basis for discussing people′ cognition about the climate changes and harmonizing person-field relationship.Methods The interview,the questionnaire survey and contrasting to real datum.Results The residents′ perception to the temperature and precipitation in Yan′an and Yulin area was decreasing with the age decreasing.The perception to precipitation and the temperature was relatively big among the age of above 66-year-old and between 61 and 65,the change extent of residents′ perception to precipitation was bigger in Yan′an area.In contrast to the real data,the consistent rates of the residents′ perception to temperature changes in Yan′an and Yulin area were respectively 22.2% and 66.7%,and that to the precipitation were all 33.3%.Conclusion The residents′ perception to temperature and precipitation changes accorded correspondingly with the real data in general.When the change rates of temperature or precipitation were bigger,the differences of the residents′ perception were also bigger.