摘要
本文对伊犁谷地野果林下土壤的形成特点进行了研究，在此基础上，根据《中国土壤系统分类（修订方案）》[1]探讨了研究剖面在土壤系统分类中的地位和归属．
The wild-fruit forests in Yili Valley occupy an area of 11330 hm2. which takes 89.5% of the total area of wild-fruit forests in Xinjiang. The formation characteristics and taxonomic classification of the soil under the wild-fruit forests are studied in the paper.The results are as follows:(1) The soil under the wild-fruit forests in Yili Valley distributes over the gentle slopes and valleys between 1100 and 1700 m a.s.l. The mean annual air temperature is 7℃, annual precipitation is 550-750 mm, aridity is 1.85, and mother soil is loess-like material. (2) HA / HF is 1.05-5.75, E4 value is 1.42-2.50. The sequence of E4 value is: the soil under wild apple forests > that under wild apricot forests > that under wild walnut forests. (3) The iso-humic property, Rh is 0.32-0.39.(4) The clayization rate is 1.02-2.10, belongs to secondary clayization.(5) The calcic phenomenon, CaO bio-returning rate is 264-570.(6) The sequence of Ba value is: the soil under wild apple forests > that under wild walnut forests > that under wild apricot forests.(7) The clay minerals main1y include illite, montmorillonite and vermicutite.(8) The classiflcation of soi1 under wild-fruit forests include soil orders, soil sub-orders, soil groups, and soil sub-groups.
出处
《干旱区地理》
CSCD
北大核心
1997年第2期34-40,共7页
Arid Land Geography
关键词
野果林
土壤形成特点
系统分类
伊犁谷地
wild-fruit forest soil
formation characteristic
taxonomic classification
Yili valley
Xinjiang
