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。
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.
作者
翟朝阳
陈高安
杨新峰
司洪章
刘立强
Zhai Zhaoyang;Chen Gaoan;Yang Xinfen;Si Hongzhang;Liu Liqiang(College of Forestry and Horticulture,Xinjiang Agricultural University,Urumqi 830052;Forestry Bureau of Huocheng County,Huocheng Xinjiang 835200)
出处
《中国农学通报》
2019年第27期114-120,共7页
Chinese Agricultural Science Bulletin
基金
国家自然科学基金项目“新疆野杏的种群更新与影响因素研究”(31460190)
国家重点研发计划课题“野果林关键种及伴生种种群更新、复壮关键技术与示范”(2016YFC0501504)
新疆维吾尔自治区园艺学重点学科
新疆特色林果果实发育与调控创新团队资助项目
关键词
新疆野杏
幼苗生境
微地形
气候因子
土壤温湿度
Armeniaca vulgaris Lam.
seedling habitat
micro-topography
climatic factor
soil temperature and moisture
