慈溪市匡堰镇生态系统服务功能价值空间分布评估  

Spatial Distribution Assessment of Ecosystem Service Function Value in Kuangyan

作　　者：王媛[1] 蒋文伟[1] 陈姝[1] 

机构地区：[1]浙江农林大学风景园林与建筑学院,浙江临安311300

出　　处：《西北林学院学报》2013年第5期58-62,共5页Journal of Northwest Forestry University

基　　金：国家自然科学基金资助项目(30972342)

摘　　要：应用遥感(RS)、地理信息技术(GIS)及地统计学方法,对慈溪市匡堰镇生态系统服务功能价值空间分布进行研究,分析各样方生态系统服务功能价值强度的空间分布规律。结合半变异函数分析,研究其服务功能价值强度空间自相关和空间插值关系,构建具有较高精度和小尺度的区域生态系统服务功能价值空间分布格网。结果表明:2009年匡堰镇生态系统服务功能价值总计209189.6万元,其空间分布强度呈明显的全局空间自相关关系,但随着空间距离增加而逐渐减弱;通过克吕格插值方法,其局部空间自相关明显地表现为2个"热核"和1个"冷极",即以西北-东南方向为主轴的高低值核心扩散形态;对区域生态系统服务功能价值的定量化研究,可以揭示其在镇域空间尺度上的依赖性和异质性,更直观地反映城镇生态系统服务功能价值空间分布特征与规律。By using RS and GIS technology and land statistics method, this paper studied the spatial distri bution of ecosystem service function values in Kuangyan township, Cixi, and analyzed the spatial distribu tion of ecosystem service function value intensity in different sampling points. Connected with semi-varia ble function analysis, it also studied the spatial autocorrelation and spatial interpolation of their ecosystem service function value intensity and constructed the grid network of ecosystem service function value of the district on a small scale with high precision. The results showed that the total of ecosystem service func- tion value in Kuangyan in 2009 was 2091. 896 million RMB and the intensity of its spatial distribution re- vealed obvious spatial autocorrelation as a whole. However, it would gradually decrease with the increase of spatial distance. Through Kriging interpolation method, its local spatial autocorrelation showed two ＂ high-high＂ aggregations and one ＂low-low＂ aggregations obviously, i. e. , central diffuseness form along with principal axis from ＂high high＂ aggregations in the northwest to ＂low-low＂ aggregations in the South- east in the regional township. By the quantitative research of regional ecosystem service function value, it could reveal the dependence and heterogeneity on the scale of regional township space and reflect the char acteristics and law of spatial distribution of ecosystem service function value intuitively.

关 键 词：生态系统服务功能价值 GIS技术 空间分布评估 空间自相关 克吕格插值 半变异 函数 

分 类 号：S718.59[农业科学—林学]