Disciplinarian of soil nutrient in the surface of terrace wall

3rd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Lei, Na^1^2^3^4 ; Dong, Qiguang^1^2^3^4 ; Liu, Zhe^1^2^3^4

Shaanxi Provincial Land Engineering Construction Group Co. Ltd., Xi'an

710075, China^1

Institute of Land Engineering and Technology, Shaanxi Provincial Land Engineering Construction Group Co. Ltd., Xi'an

710075, China^2

Key Laboratory of Degraded and Unused Land Consolidation Engineering, Ministry of Land and Resources, Xi'an

710075, China^3

Shaanxi Provincial Land Consolidation Engineering Technology Research Center, Xi'an

710075, China^4

关键词: Above grounds;    Available phosphorus;    Crop production;    Different ages;    Ecological materials;    Soil nutrients;    Solar thermal;    Total nitrogen;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/300/2/022050/pdf
DOI  :  10.1088/1755-1315/300/2/022050

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In loess tableland area, farmers usually collected the soil in the surface of terrace section (or called "terrace wall") as fertilizer. Actually it contains abundant nitrogen and potassium. As fertilizer, it would be used as new and ecological materials in crop production. In order to analyse the disciplinarian of soil nutrient in the surface of terrace wall, soil samples were divided into three different ages: one year, five years, above ten years; different two slope aspects: sunny- and shady slop; three ground level: 0.2m, 1m, 1.8m above ground; and three vertical depths: 0-1 cm, 1-5 cm, 5-10 cm. The results showed: with the increase of age and ground level, soil nutrients, such as total nitrogen, available phosphorus and potassium were activated and accumulated in the surface of terrace wall under the effect of solar-thermal resources. In the sunny slope, soil nutrients were much higher than those in the shady slope caused by radiation. Soil nutrients were decreased with the increase of sampling vertical depth, most soil nutrients were found in the section surface, which proved soil nutrients were mainly accumulated in the surface of terrace wall.