三峡库区(重庆段)生态系统服务价值变化及其对人为干扰的响应

Ecosystem Service Value Change and Its Response to Human Disturbance in the Three Gorges Reservoir Area (Chongqing Section)

三峡库区(重庆段)为研究区,以ArcGIS软件为平台,结合2000—2015年该地区的土地利用/覆盖变化数据,应用Kriging插值法分析了(重庆段)生态系统服务价值与人为干扰空间分布特征及两者间的相互关系。结果表明:2000—2015年三峡库区(重庆段)各项服务功能中,食物生产功能价值逐渐下降,娱乐文化功能价值逐渐增加,其余的各项服务功能价值都是先增加后减少,生态服务价值总量是先增加后减少,2010年达到最大值;生态系统服务价值低值区集中于各区县建成区,生态系统服务价值高值区主要集中在林地分布区域;三峡库区(重庆段)人为干扰度空间分布格局是由南向北逐渐减弱,由东向西逐渐增强;人为干扰与与粮食生产功能价值呈正相关,与废物处理功能价值不相关,与其余各项功能价值均呈负相关。

Three Gorges Reservoir area(Chongqing section)was selected as the research area.We used GIS and the source of data being the 2000—2015 Landsat TM Remote Sensing Data,and combined Kriging interpolation method to analyze ecological system service value and human disturbance and the relationship between ecological system service value and Human Disturbance.The results showed that:during the 2000—2015,in the area of Three Gorges Reservoir area(Chongqing section),for each service function,the food production function value dropped gradually,the entertainment cultural service value gradually increased,and the rest service function values increased first and then decreased,total value of ecosystem services increased first then decreased from 2000 to 2015,and it was the largest in 2010;in the area of Three Gorges Reservoir area(Chongqing section),total value of ecosystem services increased first then decreased from 2000 to 2015,and it was the largest in 2010;the low value area of ecosystem service value concentrated in the well-built area of the districts and counties,and high value area of ecosystem service value concentrated in the area of forest land;human disturbance degree of spatial distribution pattern gradually decreased from south to north,gradually increased from the east to the west in the area of Three Gorges Reservoir area(Chongqing section);the value of grain production was positively correlated with human disturbance,and uncorrelated with the human disturbance and waste disposal function value,the rest of function values were negative correlated with human disturbance.