METHOD FOR IMPROVING QUALITY OF WATER AND PLANTING BOX FOR IMPROVING QUALITY OF WATER

摘要

PURPOSE: To provide a method for improving the quality of water in rivers, marshes, ponds, drainage canals, etc., and to provide a planting box for improving the quality of water. ;CONSTITUTION: Soil is received in a planting box 1, and a waterside plant is planted in the planting box 1. A plurality of the planting boxes 1 are set in a river, etc., at proper distances. Each of the planting boxes comprises a molded product wherein the peripheral wall 3 and the bottom wall 2 which are integrally molded have water permeability.;COPYRIGHT: (C)1995,JPO