Logistic回归模型在 LUCC驱动力分析中的应用--以广东省清新县为例

利用田间大型土壤溶液渗滤装置，定位抽取不同母质土壤在20、60、100、200 cm处的土壤溶液，并对溶液中硝态氮浓度变化做连续测定，通过土壤溶液中硝态氮浓度随时间的变化，初步探讨不施肥条件下5种不同母质土壤硝态氮垂直向下运移特征。结果表明，不同母质土壤上硝态氮垂直运移的距离不同，在花岗岩、玄武岩发育的土壤上硝态氮有垂直移动到60 cm处的迹象，在片麻岩发育的土壤上硝态氮有垂直移动到100 cm处的迹象，在浅海沉积物、砂页岩发育的土壤上硝态氮有垂直运移到200 cm处的迹象。总体上来看，硝态氮在5种土壤20、60、100 cm处可移动的浓度含量存在差异，其多少顺序可基本概括为：砂页岩、片麻岩发育的土壤＞浅海沉积物、玄武岩发育的土壤＞花岗岩发育的土壤。

Logistic Regression Model of LUCC Driving Force Analysis -- A Study of Qingxin Country

Land Use/Cover Change (LUCC), the main driving factors of Global climate change, is the focus and the advancing edge of global change study. This article takes Qingxin country as an example, which located in the Pearl River delta and being the typical northern mountainous areas in transitional, using the logistic regression model that land use in applications for driving in the analysis of experience and exploring. And then makes a thorough analysis of the land for 2001 and 2007 with the LUCC Matrix and uses SPSS of the logistic model to identify the main driving force of the land use as well as its degree of influence. In addition, verifies the result.