Environmental Load and Ecological Risk Assessment of Pesticides in Paddy Rice Cultivation.

DOI Web Site 1 Citations 24 References

Bibliographic Information

Other Title
  • 水稲栽培における農薬の環境負荷量推定と生態影響評価　　異なる栽培体系での比較
  • スイトウ サイバイ ニ オケル ノウヤク ノ カンキョウ フカリョウ スイテイ ト セイタイ エイキョウ ヒョウカ コトナル サイバイ タイケイ デ ノ ヒカク

Search this article

Abstract

It has become concern that pesticides applied to agricultural lands may cause adverse effects to the environment and ecosystems. Therefore, it is important to predict both environmental fate and impact to organisms of pesticides. The fact of pesticide applications was investigated in both young seedling transplanting culture (YSTC) and direct seeding culture of paddy rice on non-tilled upland field (DSC). The environmental load (runoff amount of pesticides) was calculated by the mathematical model (PADDY). The risk to aquatic organisms (Carp and Daphnia) by runoff pesticides from paddy fields was evaluated by the ratio of predicted environmental concentration (PEC) and short term effect concentration (LC50). Application amount of pesticides in DSC was more than that in YSTC. However, on the contrary, the runoff amount in YSTC was same as that in DSC. As a result of calculating the ratios (PEC/LC50), it was estimated that the adverse effect to aquatic organisms was small by a short term exposure of pesticides.

Journal

  • ENVIRONMENTAL SCIENCE

    ENVIRONMENTAL SCIENCE 12 (3), 311-319, 1999

    SOCIETY OF ENVIRONMENTAL SCIENCE, JAPAN

Citations (1)*help

See more

References(24)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top