文献类型：期刊文献

中文题名：GIS支持下的会稽山区香榧种群生境特征

英文题名：A GIS-based Study on the Habitat Characteristics of Chinese torreya in Kuaiji Mountains

作者：王小明[1] 周本智[1] 曹永慧[1] 王珂[2] 林国新[3]

第一作者：王小明

机构：[1]中国林业科学研究院亚热带林业研究所,浙江富阳311400;[2]浙江大学农业遥感与信息技术应用研究所浙江杭州310029;[3]福建省尤溪县林业局,福建尤溪365100

年份：2010

卷号：32

期号：3

起止页码：523-527

中文期刊名：江西农业大学学报

外文期刊名：Acta Agriculturae Universitatis Jiangxiensis

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD_E2011_2012】；

基金：国家自然科学基金资助项目(30671212);国家“十一五”科技支撑重大项目(2006BAD03A1806);中国林科院中央级公益性科研专项(CAFYBB2008006)

语种：中文

中文关键词：GIS;DEM;香榧;空间格局;会稽山区

外文关键词：GIS; DEM; Chinese torreya; spatial pattern; KuaijiMountains

分类号：S791.53;S718.542

摘要：香榧为我国特有的珍贵经济树种,是近年来发展较快、经济效益最好的经济林树种之一。以RS、GIS技术为工具,利用研究区高分辨率IKONOS遥感影像、数字高程模型、土壤图和实地调查等资料,探索会稽山区香榧种群生境特征。结果表明,香榧分布对地形因子的选择性强,96.2%的香榧分布在300~600 m高度带上,93.6%分布区坡度界于10°~30°,香榧对光照需求较高,74.4%分布于阳坡和半阳坡。香榧分布区母岩类型主要为酸性凝灰岩,香榧对土壤肥力要求较高,75.2%的分布区土壤有机质含量大于2%,61.6%的分布区土层厚度大于70 cm,最适宜的土壤类型为山地黄泥土和黄泥土。通过香榧核心区和对照区气候资料的对比分析,阐明香榧核心区的气候特征与分配模式,证实香榧核心区的小气候与香榧生长发育关键时期的气候需求的高度匹配。研究结果为香榧的引种、扩种和区划提供理论依据,对其产业化发展和可持续利用具有重要意义。
Chinese torreya（Torreya grandis cv.Merrillii） is a rare economic tree in China,which is extended rapidly and has significant economic value.The habitat characteristics of Chinese torreya in Kuaiji Mountains were analyzed with a series of data,such as IKONOS imagery,Digital Elevation Model（DEM）,soil and field survey data based on GIS.The results showed that Chinese torreya exhibited high selectivity of topographical factors,96.2% occurred at the elevation belts between 300~600 m,93.6% grew on the slopes between 10°~30° and 74.4% belonged to sunny or half-sunny slopes.The parent rock type of the distribution area was mainly acidic tuff.Chinese torreya had a high requirement for soil fertility and the most suitable soil type was mountain yellow earth and yellow earth.The distribution area with soil organic matter content higher than 2% accounted for 75.2% of the total area and 61.6% of soil thickness was larger than 70 cm.By comparing the analysis of climate data between core area and control area,the climatic characteristics and distribution