Research on the degradation of tropical arable land soil: Part I the soil acidification during the last two decades in Hainan, China

文献类型: 外文期刊

第一作者: Wang, Dengfeng

作者: Wang, Dengfeng;Wei, Zhiyuan;Qi, Zhiping

作者机构:

关键词: Tropical arable land;Acidification;GIS;Hainan

期刊名称:PIAGENG 2013: INTELLIGENT INFORMATION, CONTROL, AND COMMUNICATION TECHNOLOGY FOR AGRICULTURAL ENGINEERING

ISSN: 0277-786X

年卷期: 2013 年 8762 卷

页码:

收录情况: SCI

摘要: Decreasing of soil pH leads to change the distribution or mobility of soil heavy metals, particularly in tropical arable lands which had relatively lower pH, where the distribution and mobility of heavy metals in soil-crop systems are extremely sensitive to soil acidification. The purpose of this study is to analyze the distribution of arable land soil pH of Hainan in 2005 and the 1980s. The results indicate that the soil pH was 5.20 in 2005 and 5.72 in the 1980s. Soil acidification areas mainly distribute in Wenchang and Haikou. The application of chemical fertilizers is probably the main reason for arable land soil acidification in Hainan. Several measures can be taken to control arable land soil acidification, including increasing organic fertilizer and application of the alkaline fertilizer.

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