Soil problems in China and its lessons for other developing countries

International Symposium on Food and Agro-biodiversity 2017

农业科学;生物科学

Chen, N.^1 ; Widjajanto, D.W.^2 ; Zheng, Y.^1

Guangdong Institute of Eco-environmental Science and Technology, Guangzhou, China^1

Department of Agriculture, Faculty of Animal and Agricultural Sciences, Diponegoro University, Semarang, Indonesia^2

关键词: Atmospheric depositions;    Chemical fertilizers;    China;    Fertilizer applications;    Large amounts;    Organic fertilizers;    Pollution process;    Soil acidifications;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/102/1/012001/pdf
DOI  :  10.1088/1755-1315/102/1/012001

来源: IOP

【 摘 要 】

With the rapid growth of economy in China for more than 35 years since 1980, the soils in China experienced severe chances featured in high input of chemical fertilizers indeed of organic fertilizers to pursue high yield for the ever-growing population and the increase of life style and in high input of a large amount of metals especially cadmium from manure and atmospheric deposition. The shift of fertilizer application pattern and the high-yield output greatly change the soil quality, of which soil acidification is one of the main problems. Soil acidification and high cadmium input not only caused pollution on the soil but also contaminated the food. Cadmium with high percentage based on the strict soil quality standard (cadmium 0.3 mg/kg for soil, 0.2 mg/kg for rice grain). This paper will elucidate the soil pollution process in China during this 35 years and evaluate the soil and food problem properly and it may give a lesson for other developing countries when they are pave the way of modernization.