Contaminated soils in the South Pacific Islands

Morrison, R.J.; Gangaiya, Philomena; Koshy, Kanayathu

doi:10.1007/978-94-009-1626-5_23

Cited by 3 publications

(1 citation statement)

References 11 publications

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“…Morrison et al (1996) found that poor waste manage- Table 4 Water contaminants from industrial sources (Source: Morrison 1997, p. 125). Limited land resources mean that there are few options for the disposal of wastes and the geology of the islands is in many places not well-suited to land fills.…”

Section: Biophysical and Social Vulnerabilitiesmentioning

confidence: 99%

Urbanization in the Pacific: environmental change, vulnerability and human security

Cocklin

Keen

2000

Envir. Conserv.

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The world is in the midst of a substantial urban transition, but the impacts of this on the environment and human societies are not fully understood. Very little attention has been paid to urbanization processes in developing countries with smaller populations, despite the evident problems associated with urbanization. There are both biophysical and social vulnerabilities associated with urbanization in the South Pacific and these vulnerabilities affect human security. The biophysical vulnerabilities include the fragile environments of the island nations, limited land resources, shortages of basic resources, and the risks associated with global warming. The ability to respond to these problems is constrained by social vulnerabilities, notably weak economies, difficulties associated with land ownership, and institutional limitations. There is a need for institutional reform, improved planning, better urban resource management, and greater regional cooperation, if Pacific island nations are to respond effectively to rapid urbanization and global change.

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Section: Biophysical and Social Vulnerabilitiesmentioning

confidence: 99%

Urbanization in the Pacific: environmental change, vulnerability and human security

Cocklin

Keen

2000

Envir. Conserv.

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Waste Management in the Small Island Developing States of the South Pacific: An Overview

Morrison

Munro

1999

Australasian Journal of Environmental Management

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Water Dynamics and Nutrient Leaching through a Cropped Ferralsol in the Loyalty Islands (New Caledonia)

Duwig¹,

Becquer

Vogeler³

et al. 2000

J of Env Quality

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On the South Pacific islands, the change from traditional to more intensive agricultural practices is leading to more fertilizer use, both extensively and intensively. Nutrient leaching should be minimized to avoid plant deficiencies and ground water pollution. The fate of nitrate and potassium under corn (Zea mays L.) and perennial grass (Rhodes grass, Chloris gayana Kunth.) was monitored during three wet seasons on a Ferralsol soil from Maré in the Loyalty Islands. In 1995,130 and 41% of the applied NOT and K+, respectively, leached beyond the root zone. Split application of the fertilizers in 1996 decreased the amounts leached to 48 and ll%, respectively. This reduction occurred even though the rainfall nearly doubled from 1995 to 1996. Nitrate and potassium transport, however, can be decreased due to their retention by this Ferralsol. Nitrate can be adsorbed on the positively charged surface of aluminum and feme oxides. Due to the rapid drainage under tropical rainfall, however, this phenomenon is not very effective. Potassium is usually tightly fixed on 21 clay minerals, but these are nonexistent in our soil. Potassium also is bound to hnmic substances and the organic matter reaches 15% in the subsoil of this Ferralsol. Leaching of K+ was retarded compared with NO;, but was still quite high compared with others studies on t r o p i d soils.

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Contaminated soils in the South Pacific Islands

Cited by 3 publications

References 11 publications

Urbanization in the Pacific: environmental change, vulnerability and human security

Urbanization in the Pacific: environmental change, vulnerability and human security

Waste Management in the Small Island Developing States of the South Pacific: An Overview

Water Dynamics and Nutrient Leaching through a Cropped Ferralsol in the Loyalty Islands (New Caledonia)

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