IMHE OpenIR  > 成都山地所知识仓储(2009年以前)
四川盆地紫色土肥力与母质特性的关系
Alternative TitleTHE FERTILITY OF PURPLE SOIL IN RELATION TO THE CHARCTERISTICS OF PARENT MATERIAL IN SICHUAN BASIN
唐时嘉; 孙德江; 罗有芳; 周大海; 何熔; 毛建华; 罗英
Corresponding Author唐时嘉
1984
Source Publication土壤学报
Volume21Issue:2Pages:123-133+229-230
Abstract紫色土在四川盆地分布最广,占全省总面积的28%,占耕地总面积的68.7%,是该省粮食生产基地,粮食产量约占全省总量的70%。这种土壤除种植粮食作物外,还适宜种植蔗、棉、油、桑和水果。紫色土生产潜力极大,但也存在不少问题。从三十年代以来,许多土壤学者对紫色土进行过一系列研究,一致认为紫色土肥力与母质特性关系密切。本文以底土或岩石风化碎屑(即母质,C)为基本材料,同时用表土(A)和岩石(R)作辅助样品,研究了紫色土肥力与母质特性的关系。
Other AbstractSix mian purplish parent materials of soil in Sichuan basin have been studied by chemical, physical, differential thermal, X-ray and micromorphogical analysis and pot culture. Results obtained are as follows:
1. The difference in SiO2/R2O3 ratio of the clay minerals among the soils derived on purple parent material, parent material and rock is inignificant. There are irregular lithorelicts in both soil and its parent material. Microaggregte are poorly developed in the soil. All these indicate the feature of purple soil characterized by the profile of A-C pattern and being young skelecton soil.
2. The SiO2/R2O3 ratio of clay minerls in different purple soils range from 2.09 to 3.06. The day minerals of parent materials are predominantly montmorillonite and hydromicas. Total content of Fe and Zn is closely correlated with organic matter content in rocks, the correlation coefficints (r) are 0.925 and 0.926.
3. The pot culture of rice also shows that in addition to the effect of N, P, K content, the rice yield is aslo closely related to precentage of <0.05 mm paticles and the content of available Fe in the parent materials the correlation coefficinets (r) are -0,907 and 0.948.
Keyword硅铝铁率 岩石风化 硅铝率 总面积 紫色土 中国科学院 微形态特征 生物气候 四川盆地 母质特性
Language中文
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/6459
Collection成都山地所知识仓储(2009年以前)
Corresponding Author唐时嘉
Recommended Citation
GB/T 7714
唐时嘉,孙德江,罗有芳,等. 四川盆地紫色土肥力与母质特性的关系[J]. 土壤学报,1984,21(2):123-133+229-230.
APA 唐时嘉.,孙德江.,罗有芳.,周大海.,何熔.,...&罗英.(1984).四川盆地紫色土肥力与母质特性的关系.土壤学报,21(2),123-133+229-230.
MLA 唐时嘉,et al."四川盆地紫色土肥力与母质特性的关系".土壤学报 21.2(1984):123-133+229-230.
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