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

被引：0

作者：

Wang, Dengfeng ^{[1
]}

Wei, Zhiyuan ^{[1
]}

Qi, Zhiping ^{[1
]}

机构：

[1] Chinese Acad Trop Agr Sci, Trop Crops Genet Resources Inst, Minist Agr, Danzhou 571737, Peoples R China

来源：

PIAGENG 2013: INTELLIGENT INFORMATION, CONTROL, AND COMMUNICATION TECHNOLOGY FOR AGRICULTURAL ENGINEERING | 2013年 / 8762卷

关键词：

Tropical arable land; Acidification; GIS; Hainan;

D O I：

10.1117/12.2019695

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

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.

引用

页数：5

共 8 条

[1]

[Anonymous], 2001, Trace Elements in Soil and Plants, DOI 10.1201/b10158

[2] Changes in soil chemistry accompanying acidification over more than 100 years under woodland and grass at Rothamsted Experimental Station, UK [J].