| 川东鄂西山地紫色土发生探讨 |
| |
| 引用本文： | 唐时嘉,郭永明.川东鄂西山地紫色土发生探讨[J].西南师范大学学报(自然科学版),1988(4). |
| |
| 作者姓名： | 唐时嘉 郭永明 |
| |
| 作者单位： | 中国科学院成都分院
(唐时嘉)，中国科学院成都分院(郭永明) |
| |
| 摘 要： | 本文研究表明,在试验区内,地质构造决定着紫色岩层的展布和紫色土的分布;老年、壮年、青年等不同地貌发育阶段则深刻影响和制约紫色土发生演化的方向.在现代成土条件下,各地类型紫色土的发育和岩石,既存在矿质元素的相对迁移和富集.也存在元素间的彼此制约关系.实质为碱金属、碱土金属在土壤剖层次间的淋溶作用.土壤淋溶系数5.90-14.960;岩石淋溶系数2.269-4.466.
|
| 关 键 词： | 川东 鄂西 地层 地貌 紫色土 风化作用 |
STUDIES ON GENESIS OP PURPLE SOIL IN MOUNTAIN REGION OF EASTERN SICHUAN AND WESTERN HUBEI |
| |
| TANG SH JIA QUO YONGMING.STUDIES ON GENESIS OP PURPLE SOIL IN MOUNTAIN REGION OF EASTERN SICHUAN AND WESTERN HUBEI[J].Journal of Southwest China Normal University(Natural Science),1988(4). |
| |
| Authors: | TANG SH JIA QUO YONGMING |
| |
| Abstract: | The results in this paper have shown that it is geological structure that determines the distributions of purple rock and purple soil there. The various periods of landforms in geomorphology dated the old, middle-aged and the young, influenced serlously the direction of genesis and development of the purple soil. Under the sontemporary soil formation condition the development of purple soils at different types of geomorphology leads to the relative removing and lating of soil mineral elements with the relationships. This is characterized with the leaching of alkali and alkali-earth metals in the horizons of soil profile and rock, with the leaching index of 5. 93-14. 96 in soil and 2.26-4.46 in rock. |
| |
| Keywords: | East Szechuan West Hupeh subbing layer geomorphy purple soil weathering |
| 本文献已被 CNKI 等数据库收录！ |
