【摘要】 探究新疆霍城县大西沟野果林内的微地形对野杏幼苗生境的气候和土壤温湿度等环境因子的影响。在封育的野果林内设置样地,观测地形、野杏幼苗生长季的气温、光照、空气湿度和土壤温湿度,分析各环境因子和地形因子的关系。结果表明:(1)坡向与气温、光照强度和土壤温度呈极显著正相关(P<0.01),东南坡>南坡>东北坡,坡向与空气湿度、土壤含水量呈极显著负相关(P<0.01);(2)坡位与气温、光照强度呈极显著正相关(P<0.01),与土壤含水量呈显著负相关(P<0.05),不同坡位的环境因子没有显著性差异(P<0.05);(3)坡度与气温、光照强度以及土壤温度呈极显著正相关(P<0.01),缓中坡>陡坡>中坡>缓坡,缓坡与其他坡度均呈显著差异(P<0.05);坡度与空气湿度以及土壤含水量呈显著负相关(P<0.05);(4)坡形与土壤含水量呈极显著负相关(P<0.01),对气候因子和土壤温度都无显著影响。地形变化对野杏幼苗生境的气候和土壤温湿度有显著影响,东南坡、上坡位、缓中坡以及凸坡形和相应的气候与土壤温湿度,是适宜野杏幼苗生存的生境条件。更多还原

【Abstract】 The study aims to explore the effects of micro-topography on climatic and soil temperature and moisture in the habitat of Armeniaca vulgaris Lam. seedlings in Daxigou, Huocheng County, Xinjiang. In the closed wild fruit forest, the terrain, temperature, light, air humidity, soil temperature and moisture were observed at the growth stage of A. vulgaris seedling. The relationship between the environmental factors and terrain factors was analyzed. The results showed that:(1) the slope aspect had a significantly positive correlation with temperature, light intensity and soil temperature(P<0.01), southeast slope > south slope >northeast slope, while the slope aspect had a significantly negative correlation with air humidity and soil water content(P<0.01);(2) the slope position had a significantly positive correlation with temperature and light intensity(P<0.01), while the slope position had a significantly negative correlation with soil water content(P<0.05), the environmental factors of different slope positions had no significant difference(P<0.05);(3) slope had a significantly positive correlation with air temperature, light intensity and soil temperature(P<0.01),moderate slope > steep slope > middle slope > gentle slope, and there were significant differences between the gentle slope and the other slopes(P<0.05), slope had significantly negative difference with air moisture and soil water content(P<0.05);(4) slope shape had a significantly negative correlation with soil water content(P<0.01), which had no significant effect on climatic factors and soil temperature. The terrain changes have a significant effect on the climate, soil temperature and moisture in the habitat of A. vulgaris seedling. The suitable habitat condition for A. vulgaris seedling is southeast slope, up slope, moderate slope and convex slope with their climate, soil temperature and moisture.更多还原