YANG Yan,YAO Yun-feng,QIN Fu-cang,et al.Study on Sandstone of Hippophae rhamnoides on Different Stubble Soil N,P,K Content[J].Northern Horticulture,2012,36(14):147-149.
砒砂岩区沙棘不同平茬方式与土壤氮、磷、钾含量的研究
- Title:
- Study on Sandstone of Hippophae rhamnoides on Different Stubble Soil N,P,K Content
- 文章编号:
- 1001-0009(2012)14-0147-03
- 分类号:
- S 793.6
- 文献标志码:
- A
- 摘要:
- 取砒砂岩区沙棘不同平茬方式林下土壤不同土层的土样,测定其有机质和速效N、P、K的含量。结果表明:砒砂岩区沙棘不同平茬方式林下土壤各土层有机质含量除平茬75%方式呈递减趋势外,平茬30%、50%、100%的土壤有机质含量都富集到中层土(11~20 cm),平茬30%中层土的有机质含量最高,是16.5g/kg,平茬100%中层土有机质含量最小,是6.28 g/kg。土壤速效N、P、K含量都以平茬50%最高,其中速效P、K都富集在中层土(11~20 cm)。平茬75%的各土层中,上层土的N、P、K含量均高于中层土和下层土;平茬30%的各土层中,除土壤有机质含量高于平茬50%外,土壤N、P、K含量均小于平茬50%。该研究可为沙棘不同平茬方式对林下土壤化学性质的影响提供理论依据。
- Abstract:
- The organic matter and available N,P,K content were determined by different stubble way of seabuckthorn forest soil soil samples.The results showed that arsenic sandstone area of different stubble way of seabuckthorn forests soil the soil organic matter content in addition to stubble 75% showed a decreasing trend,30%,50%,100%soil organic matter content of soil enrichment to the middle layer (11~20 cm),30%middle soil organic matter content was the highest,16.5 g/kg,100% middle soil organic matter content was minimal,6.28 g/kg.Soil available N,P,K content in 50% was the highest,which readily available P,K enrichment in middle earth (11~20 cm).Stubble 75% of the soil,the soil N,P,K contents were higher than middle soil and subsoil;30% for each layer,in addition to the content of soil organic matter and soil was higher than that of 50%,N,P,K contents were less than 50%.This research may provide different stubble on Hippophae rhamnoides forest soil chemical properties and provide theoretical basis for the effect of it.
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备注/Memo
第一作者简介:杨燕(1983-),女,硕士,研究方向为水土保持与荒漠化防治。
责任作者:姚云峰(1959-),男,博士,教授,博士生导师,研究方向为水土保持与荒漠化防治。
基金项目:国家林业局引进国际先进林业科学技术(948)资助项目(2010-4-17);内蒙古科技创新引导奖励资金资助项目(20082002)。
收稿日期:2012-04-09