Environment-friendly type water-saving agricultural mulching film and preparation method for same

The invention discloses an environment-friendly type water-saving agricultural mulching film and a preparation method for the same, aiming at solving the problems of bad soil moisture preservation, heat preservation, water preservation and fertilizer preservation effects on crops, and short service life, of the existing environment-friendly type water-saving agricultural mulching film. The environment-friendly type water-saving agricultural mulching film is made from the raw materials in the following percentage by weight: 2-5% of water-preserving resin master batch, 1-3% of heat-preserving auxiliary, 3-6% of EVA (ethylene vinyl-acetate copolymer) resin, 5-12% of metallocene, 3-6% of weather-resistant agent master batch, 62-80% of linear low-density polyethylene particles, and 6-9% of high-density polyethylene particles. The soil moisture preservation, heat preservation, water preservation and fertilizer preservation effects of the agricultural mulching film disclosed by the invention on crops are improved by 50% compared with common mulching films, the service life of the agricultural mulching film achieves more than 23 months, and the agricultural mulching film can be mechanically and completely recovered after being used, so as to be reutilized, thus eliminating 'white pollution', and protecting ecological environment.