Since 2016, suffer the multiple element effect such as carriage price, full continent in port is defeated to grow considerably toward outback log amount with steam movement way. According to statistic, 2016 5-9 month, full continent in examine quarantine bureau examines quarantine is defeated by past inland log with Wood Price steam movement way 143 thousand stere, grow 140% compared to the same period; The corresponding period is defeated by past inland log with train means 210 thousand stere, drop compared to the same period nearly 50% , amount of log of car start shipment is occupied be defeated to amount to 40.5 % toward outback log gross, achieve the history new tall.

Because log of car start shipment is given priority to with tent suffocating processing, as amount of steam carry log grow considerably, full continent in amount of log of floor covering for patio suffocating of tent of port be born increases considerably subsequently.

Feel processing job quality to assure to divide, defend a country pupil thing is safe, full continent in examine quarantine bureau was made " full continent in field of Vinyl Farm Fencing suffocating of port log tent asks " , achieve standardization administration to tent suffocating field; Pass chroma of gas of the suffocating that monitor on one hand, check log of log pass in and out to record,