基于GIS和Logistic模型的香榧生态适宜性评价

研究香榧栽培的生态适宜性将为香榧的引种、扩种和区划提供理论依据。该研究在GIS支持下，以地学数据库为基础，以logistic 回归模型为手段，利用高分辨率遥感影像、数字高程模型以及土壤、气象和实地调查等资料对研究区香榧生态适宜性开展精确评价。研究结果表明，香榧栽培高度适宜区和中度适宜区累计占总面积的61.7%，其中高度适宜区面积达183 hm2，占总面积的11.4%，说明研究区香榧栽培发展潜力巨大。该评价结果为当地香榧资源产业化发展提供了科学依据。

Suitability assessment of chinese torreya based on GIS and Logistic regression

The study on the suitability assessment of Chinese torreya cultivation has the potential for providing guide information for planting and zoning. Based on GIS and Logistic regression, the authors evaluated the suitability for local Chinese torreya planting using Geoscience Database including data such as IKONOS imagery, Digital Elevation Model (DEM), soil, meteorological data and field survey data. The results showed that the acreage of the high and moderate suitable zone for Chinese torreya planting accounted for 61.7% of the total area among which the tamable acreage in the high suitable zone was 183 hectares (11.4% of the total area). The result indicated that the study area showed great potential for cultivation of Chinese torreya. The assessment provides guidance for local government in characteristic development zones of Chinese torreya planting.