Establishment of sustainable production systems by coupling eucalyptus plantation in land-use sequences Part 2 Water chemistry

Norio TASE; Tsutomu YAMANAKA; Hisayoshi HAYASHI; Kenji TAMURA; Sachika TAKIZAWA; Shin-ichi ONODERA; Takaaki NIHEI; Ricardo HIRATA; Fernando SARAIVA; Rafael TERADA

doi:10.14866/ajg.2013s.0_138

Annual Meeting of the Association of Japanese Geographers, Spring 2013

Session ID : 703

DOI https://doi.org/10.14866/ajg.2013s.0_138

Conference information

Host: The Association of Japanese Geographers

Abstract

Establishment of sustainable production systems by coupling eucalyptus plantation in land-use sequences

Part 2 Water chemistry

*Norio TASE, Tsutomu YAMANAKA, Hisayoshi HAYASHI, Kenji TAMURA, Sachika TAKIZAWA, Shin-ichi ONODERA, Takaaki NIHEI, Ricardo HIRATA, Fernando SARAIVA, Rafael TERADA

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Keywords: Eucalyptus, Sugar cane, Land-use sequences, Groundwater contamination, Brazil

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Abstract

Brazil is the biggest eucalyptus forestation country in the world. Though there have been several studies reporting environmental impacts of eucalyptus plantation, in Brazil such issues have not occurred. This project evaluates backgrounds and finds threshold conditions to environmental mal-impacts. Based on verifying environmental functions of eucalyptus such as uptake of contaminated nitrate from groundwater and soil erosion control, sustainable crop producing systems with coupling with eucalyptus plantation in land-use sequences are analyzed. Generally, groundwater, spring water, and river water around the study site contain low minerals or nutrients, some effects by fertilization occur.

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