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中国农学通报

中国农学通报 ›› 2019, Vol. 35 ›› Issue (27): 114-120.doi: 10.11924/j.issn.1000-6850.casb18040106

所属专题： 农业气象

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

微地形对大西沟野杏幼苗生境的气候和土壤温湿度的影响

翟朝阳1, 陈高安1, 杨新峰2, 司洪章2, 刘立强1   

  1. 1.新疆农业大学林学与园艺学院;2.霍城县林业局
  • 收稿日期:2018-04-23 修回日期:2018-06-17 接受日期:2018-06-22 出版日期:2019-09-24 发布日期:2019-09-24
  • 通讯作者: 刘立强
  • 基金资助:
    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。

Micro-topography in Daxigou: Effects on Climatic and Soil Temperature and Moisture in the Habitat of Armeniaca vulgaris Lam. Seedling

  • Received:2018-04-23 Revised:2018-06-17 Accepted:2018-06-22 Online:2019-09-24 Published:2019-09-24

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摘要： 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，观测地形和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。

关键词: 红椿, 红椿, 种源, 生长指标, 叶片指标, 相关分析

Abstract: Abstract: In order to explore the effects of micro-topography on climatic factors and soil temperature and moisture in the habitat of Armeniaca vulgaris Lam. seedlings in Daxigou, Xinjiang. In the closed wild fruit forest, the terrain factors and temperature, light, air humidity, soil temperature and moisture were observed in plots during the growing season of the A. vulgaris seedling. Analyzed the relationship between the environmental factors and terrain factors. The results showed that: (1) The slope aspect was a significantly positive correlation with temperature, light intensity and soil temperature (P<0.01), southeast slope > south slope > northeast slope, while the slope aspect was a significantly negative correlation with air humidity and soil water content (P<0.01); (2) The slope position was a significantly positive correlation with temperature and light intensity (P<0.01), the slope position was 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 was 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 difference 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 variation of terrain had significant effect on the climate, soil temperature and moisture in the habitat of A. vulgaris seedling. The suitable habitat condition of A. vulgaris seedling are southeast slope, up slope, moderate slope and convex slope with their climate, soil temperature and moisture.