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针对我国沙生灌木平茬收割效率低、劳动强度大的问题,主要介绍灌木平茬机的结构特点、工作原理,并对其经济效益和社会效益进行分析。灌木平茬机静态投资回收期为130 d,投资收益率为88.3%;背负式割灌机静态投资回收期为13 d,投资收益率为36.4%。与背负式割灌机比较,灌木平茬机投资收益率高,不仅可以带来较大的经济效益,而且可产生一定的社会效益,具有很好的市场前景。
In view of the problem of low efficiency and labor intensity of stubble harvesting of sandy shrubs in China, this paper mainly introduces the structural characteristics and working principle of stubble shrubbery, and analyzes its economic and social benefits. The static investment recovery period of shrub stubbler is 130 days, and the investment return rate is 88.3%. The static investment recovery period of backpack brush cutter is 13 days, and the investment return rate is 36.4%. Compared with the knapsack cutter, shrub stubbler has a high return on investment, which can not only bring greater economic benefits, but also generate certain social benefits and have good market prospects.