摘要
本文论述了新疆土壤中Fe,Mn,Zn,Cu全量和有效态含量及其分布。Fe的全量0.3—5.1%(平均值为2.4%),有效态含量0.16—504.00ppm(18.20ppm);Mn的全量59—1550ppm(564ppm),有效态含量0.38—41.60ppm(4.86ppm);zn的全量9—216 ppm(75ppm),有效态含量0.08—11.84 ppm(1.00ppm);Cu的全量5—145 ppm(28ppm),有效态含量0.06—19.20 ppm(1.22ppm)。新疆土壤中全铁含量丰富,但有效态铁含量变幅大。全锰含量属中等水平,而有效锰含量很低。全锌及有效锌含量均低。全铜及有效态铜含量较高,除了棕色荒漠土及分布于砾质戈壁的灰棕色荒漠土外,其余土壤有效态铜供应充足。一般是在自然肥力高,富含有机质的土壤,这四种元素的有效态含量高。全铁,全铜及有效态铜含量在土壤剖面中的分布没有规律性。全锰含量在剖面中均匀分布。全锌,有效态锌、锰、铁在土壤表层含量高,自上而下递减。
This paper deals with the distribution and the total and available contents of Fe,Mn,Zn,and Cu in soils of Xinjiang.The content of the total iron in soils of Xinjiang is very high(0.3—5.1%),but with a greater fluctuation of available iron(0.16—504ppm).Some of the soils such as brown desert soil,gray desert soil,relic saline soil,saline soll and takyric soil are deficient in iron.The content of the total manganese(59—1550 ppm)in soils is moderate,but the content of the available Mn(0.38—41.6ppm)is very low.It has been found that the brown desert soil,gray brown desert soil,gray desert soil,sierozem soil,saline soil and takyric soil in Xinjiang are severely deficient in manganese.The contents of the total Zn(9—216ppm)and available Zn(0.08—11.84 ppm)in siols are lower.The brown desert soil,gray brown desert soil,sierozem soil,brown soil and saline siol in this region are severely deficient in zinc.The contents of the total Cu(5—145ppm)and available Cu(0.06—19.20 ppm)in soils are higher.Most of the soils in the region are adequate in Cu with the exception of brown desert soil and gray brown desert soil which are mainly distributed in the gravel gobi.
作者
李泽岩
谢玉英
田秀芬
杨洁泉
Li Zeyan;Xie Yuying;Tian Xiufen;Yang Jiequan(Institute of Biology,Pedology and Desert,Academia Sinica,Xinjiang)
出处
《土壤学报》
1986年第4期330-334,共5页
Acta Pedologica Sinica
