The turfgrass waterlogging how?

The turfgrass waterlogging how?

The last few weeks of heavy rain, leading to the outbreak of floods in many areas. Now our concern is the turfgrass waterlogging?
James Bird in its lawn grass - Science and cultivation Art in specific description flooding hazards on Turf. Including indirect soil erosion, soil sediment, salt, and a large accumulation of debris led to the death of the turfgrass or the turfgrass deaths directly caused by the flooding.

The flood hazards extent by several factors:

· Water depth. Turfgrass leaves are completely submerged in the water. Only partially submerged in water the lawn grass the completely submerged lawn grass waterlogging much stronger. Leaves floating on the water of a typical example of this is in the the creeping shear shares of the banks of the river Ying long stolons extending into the water.

· Type of flood (flood is stationary or mobile). Flood in the stationary state under particularly severe harm to the lawn.

Flood frequency (more harmful) repeated outbreak of floods on the lawn. With the frequent outbreak of floods, waterlogging reduced capacity of turfgrass.

· Turfgrass physiological state. In a dormant lawn grass is usually higher than the actively growing turf grass waterlogging.

· Turfgrass species. Bermudagrass (Cynodon spp.) Has excellent water logging, the creeping shear shares Ying good for shallow waterlogging resistance. Kentucky bluegrass (Poa pratensis) and bluegrass (Poa annua) waterlogging.

· Floods's temperature. Turfgrass severely damaged when the water temperature is higher. Jim Bode, Ph.D., and Dr. David Martin at Michigan State University on the four kinds of cold-season turfgrass Waterlogging Tolerance of them found a low survival rate of turf grass flooded conditions at 30 degrees Celsius (with Poa bluegrass, bluegrass, fine fescue, creeping Agrostis Ying compared to only patience over five days flooded lawn grass). When the the stagnant water temperature at 20 degrees, all turfgrass survival has improved. Especially creeping shear shares Ying still have a 60% survival rate in the 30 days after flooding.

Flood sedimentation degree of covering the surface of the lawn. If your lawn has been subject to flood hazards, do not let these flood suspended sediment and trash particles cover the surface of the lawn. When the water level of the flood retreated 0.3 to 0.5

· M, rinse with water the lawn surface, making them settle down in the sediment back into the water. Try not to let these precipitation refuse to air-dry at the surface of the green. Once the greens flood receded, to dry, you can use high strength punching operation closed in order to break the surface of silt. Some places may need to sowing grass seed.