地理科学 ›› 1991, Vol. 11 ›› Issue (2): 118-124,197.doi: 10.13249/j.cnki.sgs.1991.02.118

• 论文 • 上一篇    下一篇

内蒙古乌兰察布荒漠草原棕钙土氮素与灰分生物积累的特点

陈佐忠1, 黄德华1, 娜顺德力格2, 斯琴高娃2   

  1. 1. 中国科学院植物研究所 北京;
    2. 内蒙古四子王旗草原站
  • 出版日期:1991-03-20 发布日期:1991-03-20

CHARACTERISTICS OF BIOACCUMULATION OF NITROGEN AND ASH OF BROWN SOIL OF DESERT STEPPE IN ULAN QAB, INNER MONGOLIA

Chen Zuozhong1, Huang Dehua1, Na Shundelige2, Si Qingaowa2   

  1. 1. Institute of Botany, Academia, Sinica, Beijing;
    2. Siziwang Banner Grassland Station, Inner Mongolia
  • Online:1991-03-20 Published:1991-03-20

摘要: 发育于荒漠草原下的棕钙土,其氮素与灰分的生物积累具有明显的特点。其地上部分氮素年积累量为1.43g·m-2地下部分氮素积累量27.14g·m-2,且大苟分集中在0-30cm土层。灰分积累也表现出相同趋势,灰分总生物积累达280.89g·m-2

Abstract: The bioaccumulation of nitrogen and ash of brown soil of desert steppe is different from other soils in Inner Mongolia. The aboveground bioaccumulation of nitrogen is 1.43g/m2, making up 5.01% of the total bioaccumulation,among which the bioaccumulation of Artemisia pectinata is the highest, being 54.32% of the aboveground bioaccumulation. The undergrrond bioaccumulation of nitrogen is 27.14g/m2, amounting to 94.99% of the total bioaccumulation of nitrogen,but the accumulation of nitrogen in 0—30cm is 80.24% of the total underground bioaccumulation. The accumulation of ash shows a similar trend. The total bioaccumulation of ash is 280.69g/m2. The bioaccumulation of underground and aboreground is 95.92% and 4.08% of the total bioaccumulation of ash respectively.