摘要
在GIS支持下,应用GIS空间分析功能,选取了年均温、年降水量、海拔、坡度和坡向5个环境影响因子,将各环境因子分别与太白山植被类型图叠加,并对不同植被分布与环境因子的关系进行统计分析。结果表明,灌丛草甸、太白红杉、巴山冷杉、桦林、栎林最适年均温度范围分别为-1.14℃-2.60℃、0.01℃-4.34℃、1.49℃-5.23℃、2.62℃-7.23℃、4.74℃-8.85℃最适年降水量范围为719.1-754.5 mm、717.9-754.6 mm、731.1-768.3 mm、705.6-755.3 mm、680.9-740.1 mm;最适海拔范围为2 659-3 572 m、2 607-3 454 m、3 334-3 164 m、1 997-2 840 m、1 412-2 196 m;在坡度上,各种植被大多较均匀地分布在斜坡、陡坡、险坡上;在坡向上,各植被类型主要分布在半阳坡和阳坡上。
With the support of GIS and application of the function of GIS space analysis, five environment factors：the annual average temperature, annual rainfall, altitude, slope and aspect are chosen,the vegetation map of Taibai Mountain and each environmental factors map was superposed and analyszed. The results showed that as to the shrub meadow, Taibai redwood, Bashan fir and birch forest and oak forest, the optimum annual average temperature ranges were -1.14℃-2.60℃, 0.01℃-4.34℃, 1.49℃-5.23℃,2.62℃ -7.23℃, 4.74℃-8.85℃, -1.36℃-4.31℃; and the optimum annual average precipitation ranges were 719.1-754.5 mm,717.9-754.6 mm,731.1-768.3 mm,705.6-755.3 mm, 680.9-70.1 mm; the optimum altitude range of 2659-2659 m, 2607-3454 m, 3454-3164 m, 1997-2840 m, 2840-2196 m, respectively. The vegetation types in Taibai Mountain were mainly distributed in Slope, steep slope and dangerous slope, and they were mainly distributed on half sunny slope and sunny slope.
出处
《商洛学院学报》
2014年第4期19-24,共6页
Journal of Shangluo University
基金
国家林业公益性行业科研专项项目(201304309)
