摘要
对7a生新红星苹果采取行内起垄覆草处理,结果表明:起垅覆草对果园土壤具有改善其物理性状、调节温度和保持水分等多种作用。处理区表层土壤孔隙度提高6 5%,土壤含水量增加4 7%,冬季增温4 6℃,夏季降温达13 7℃。由于综合改善了根系生态条件,从而明显促进了根系生长发育,表层土壤中的根系分布比例增高。
Seven-year-old apple trees were treated by ridging the land and covering grass.The results showed that such treatment could improve the physical property,regulate the temperature and maintain water content of the orchard soil. In the treated area, porosity of the topsoil was increased by 6.5%, soil water content was increased by 4.7%, the soil temperature in winter has been increased by 4.6℃ and the decrease of soil temperature in summer was 13.7℃.Because the ecological condition of the root has been improved comprehensively, it′s growth and development was improved significantly,the ratio of root distribution in the surface soil was enlarged.
出处
《河北林果研究》
2004年第2期166-169,共4页
Hebei Journal of Forestry and Orchard Research
关键词
苹果
起垄覆草
土壤温湿气变化
根叶生长反应
apple tree
ridging the land and covering grass
variation of the temperature,humidity and air in the soil
growing reaction of roots and leaves
