中央アジアのアラル海の縮小が漁業資源，農業，食糧生産に及ぼす影響について

DOI

書誌事項

タイトル別名
  • Effects on Fishery Resources, Agriculture and Food Production Caused by Aral Sea Shrinking in Central Asia

説明

In the 1960s, the Aral Sea, situated at the lowest reaches of its two main inflows, had a surface area of 68,000 km2, a maximum waterlevel of 53.41 m above sea level, a volume of 1,090 km3, and salinity of 10 g L－1. For the 300 to 400 years before 1960, it was one of the largest lakes in the world. Its influents are Syr Darya, which runs into the Aral Sea from the east, and Amu Darya, which flows from the south. The sea has been continuously shrinking since, the 1960s, and in 1989 it had a surface area of only 37,330 km2, a water-level of 39,80 m above sea level, and a volume of 320 km3; and had undergone a sharp salinity increase to 29.60 g L－1. The total volume of water inflow has decreased over the past 50 years, caused by human activities. In recent years, the Aral Sea has separated into two lakes that connect near the mouth of Syr Darya by a small and shallow channel. These lakes are the Small Aral Sea and the Large Aral Sea. Amu Darya stopped flowing into the Large Aral Sea in 1980. The reduction of the sea had several impacts: fish production ceased, crop production deepened, and salinization of the soil and pollution of drinking water occurred. These impacts as a whole have been generally referred to as the ‘Aral Sea Crisis’.

収録刊行物

キーワード

詳細情報 詳細情報について

  • CRID
    1390001204595612928
  • NII論文ID
    130004566936
  • DOI
    10.11457/swsj.66.79
  • COI
    1:CAS:528:DC%2BC38XntFOgsLc%3D
  • ISSN
    21859213
    03694550
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

問題の指摘

ページトップへ