PROBLEM TO BE SOLVED: To provide a low cost, low environmental pollution desert greening, global warming prevention, and fishery resource countermeasure system. SOLUTION: Rough ropes 1-1 are attached to both sides of a straw floating body 1 at right angles to the straw stem direction. On the back side of the bamboo basket, a rough rope, bamboo, reed, etc. having a lateral width are attached as a floating body 1-2 along the stalk direction of the straw at intervals. [Selection diagram] Figure 1【課題】低コストで環境汚染の少ない砂漠の緑化、地球温暖防止、漁業資源対策システムを提供する。【解決手段】筵浮体1の藁の茎方向に対して直角に両側に荒縄1-1を取り付ける。筵の裏側には間隔をおいて藁の茎方向に沿って横幅の長さの荒縄や竹、葦などを浮体1-2として取り付ける。【選択図】図1