PROBLEM TO BE SOLVED: To provide a weed-proof greening construction, which is hardly broken and eroded, excellent in a weed-proof effect, capable of raising introduced plants for a long period and including a weed-proof sheet, and can be conservation and formation of a landscape of a region and does not prevent visual fields in traffic while increasing greenery.SOLUTION: The weed-proof greening construction comprises a weed-proof foundation sheet having water permeability and a water retention property, passing plant roots while blocking light, and having black, long fiber nonwoven fabric as undersurface which makes it difficult for weeds to grow, the sheet being a first step of: coating the undersurface with asphalt emulsion which has water permeability and a property to blacken when it is dried spraying soil in good quality for promoting rooting in a thickness of several millimeters and fixing it by polymeric resin with water permeability to make it the weed-proof foundation sheet. Further, the construction comprises a second step of: superposing short fiber nonwoven fabric with water repellency, a polyethylene sheet with a root preventive property, and a long fiber nonwoven fabric with water permeability and a water retention property, in this order from top and uniting them forming large numbers of open holes of several to tens of millimeters at regular intervals for growing plants and uniting a seeding sheet of introduced plants to an undersurface of the long fiber nonwoven fabric. The second step is superposed on the first step of the weed-proof foundation sheet, thereby inhibiting growing of weeds and raising the introduced plants for a long period.COPYRIGHT: (C)2015,JPO&INPIT【課題】破損や腐食がしにくく、雑草の防草効果に優れ、導入植物が長期間生育可能で、防草シートを兼ね備え地域景観の保全形成と交通視界の妨げにならない緑化が可能な防草緑化工法の提供。【解決手段】透水性と保水性を有し、植根を通すが光を遮断し、雑草の生育を困難とする黒色長繊維不織布を下面とし、この上に透水性を有し乾燥すると黒変するアスフルト乳剤でコーティングし、発根を促進する良質土を数ミリ厚さで散布し、透水性を有する高分子樹脂にて固着して下地防草シートとする第一工程の下地防草シートに 上から順に撥水性を有する短繊維不織布、防根性を有するポリシート、透水性と保水性を有する長繊維不
