The invention belongs to the field of agricultural
environmental protection, and particularly relates to a method for establishing nature-simulated ecological farmland. According to the method, the farmland, trenches, a
tractor-ploughing road, farmland buffer zones and a buffer purification
pool are established; on the basis of a farmland production function, a farmland ecological function is further exerted, the farmland is utilized for consumption and sinks of environmental
nitrogen and
phosphorus; through
soil carbon sinks on the farmland and
biodiversity, non-
point source pollution to the farmland is controlled. Through adoption of the method, the functions of the farmland, farmland ridges, the trenches, the
tractor-ploughing road and the buffer purification
pool in a whole
compound system are optimized; the farmland
biodiversity is improved, and a farmland planting and breeding compound function and a
pollution source
control function are extended; farmland
ridge buffering, beautifying and economic functions are added, and the non-
point source pollution self-purification capability of the farmland is enhanced; the trenches are hardened through ecologicalization, and
nitrogen and
phosphorus nutrients can be recycled; interception and purification of the non-
point source pollution to the farmland are regulated and controlled; an ecological corridor is established, farmland landscapes are beautified, and the ecological value of the farmland is improved.