海河流域土壤中碳的分布特征

Characterization of Distribution of Carbon in Haihe River Valley.

通过对海河流域土壤中碳及其形态含量的分析,研究了该区不同土壤类型的水平与垂直分布规律,普遍具有表层含量高于下层含量的垂直分布,盐化湖士>潮土>褐土含量的水平分耵特点;并探讨了影响其含量的地貌特征和施肥因素,具有西部丘陵地区含量分散,冲积淤积区元素富积,以及施用农家肥的蔬菜地含量增高的规律;并探讨了各形态间相互制约的相关牲;同时参照其它地区该元素含量,确立本区基本没受人为干扰的含量水平,在此基础上,作出该区土壤中总碳、无机碳、有机碳,有机质含量分布图。为研究本区碳的生物地球化学循环奠定基础。

This paper approaches the distribution of corbon content in different types of soil in Haihe River valley and the horizontal and vertical changes of various forms of carbon in the soils, studies the ways of natural enrichment, increasing or decreasing, the environment for self-cycling and characteristics of carbon in soil under given conditions and therefore lays a foundation for the study of inventory and flux cycling system of carbon in this region.