不同土壤改良方式对乌柳生长的影响  

Effects of Different Soil Amelioration on Growth of Salix cheilophila

作　　者：刘芳 袁雅丽[2] 

机构地区：[1]青海省林业技术推广总站,青海西宁810000 [2]青海大学,青海西宁810016

出　　处：《防护林科技》2016年第8期4-7,共4页Protection Forest Science and Technology

摘　　要：通过改良天峻县高原冻土层土壤,改善其理化性质,分析不同改良方式对乌柳生长的影响,筛选出高寒高海拔冻土层地区适合乌柳生长的土壤改良方式。结果表明,不同改良配方对乌柳生长均有不同程度的改善和促进作用,其中:S4处理(60%森林土+10%腐熟羊粪+10%河沙+5%珍珠岩+15%本土)中乌柳各项生理参数最高,平均株高1.74m,平均冠幅55.66cm,平均地径0.978cm;其次为处理S8(60%泥炭+10%腐熟羊粪+10%河沙+20%本土),平均株高1.73m,平均冠幅54.57cm,平均地径0.972cm。S4和S8处理为适合高寒冻土层地区乌柳生长发育的土壤改良方式。Through improved soil layer of frozen earth of plateau in Tianjun County,its physical and chemical properties were analyzed;effects of different soil amelioration methods were screened by alpine.Soil amelioration methods which is optimal for growth of Salix cheilophilain alpine and high-altitude frozen earth were screened.Result shows that the improved formula all have different degrees of improvement and promote role on growth of Salix cheilophila.Among S4 treatment,various physiological parameters of Salix cheilophila are the highest,mean plant height,crown breadth,mean ground diameter being 1.74 m,55.66 cm 0.978cm;followed by treatment S8（60% marl＋10% sheep manure＋10% river sand ＋ 20%local soil）,its mean plant height,crown ground diameter is 1.73 m,54.57 cm 0.972 cm,respectively.Treatment S4 S8 are optimal for soil amelioration methods for growth of Salix cheilophilain alpine and high-altitude frozen earth.

关 键 词：高原冻土层 土壤改良 乌柳 生长参数 

分 类 号：S156[农业科学—土壤学]