Land Use-Related Changes in Soils of Hainan Island During the Past Half CenturyEnglish Full Text
GONG ZITONG, ZHANG GANLIN, ZHAO WENJUN, ZHAO YUGUO and CHEN ZHICHENGInstitute of Soil Science, the Chinese Academy of Sciences, Nanjing 210008 (China)
Abstract: During the past half century, the land utilization of Hainan Island has undergone a rapid development, but in the meanwhile, soil degradation occurs. Analysis on some basic data of the soil series collected from more than 100 soil profiles at the end of the 1990s and beginning of this century, in combination with data available, showed that soils there suffered significant decline in organic matter, experienced P and K deficiency with soil K going on losing and undergone acidification with continuing trend. The current situation calls for strategies to build up Haitian into an important province of sound ecology by restoring forests, to improve food quality by implementing K supplement projects, to combat soil acidification by ameliorating the soils and growing leguminous crops and to ensure health of the people by developing dairy production and increasing the daily Ca uptake by the people.
Keywords：
- Series：
(B) Chemistry/ Metallurgy/ Environment/ Mine Industry; (A) Mathematics/ Physics/ Mechanics/ Astronomy; (D) Agriculture
- Subject：
Environment Science and Resources Utilization; Physical Geography and Topography
- Classification Code：
X144
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