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灌木围障是预防林木兔害的有效方法。为了评价灌木围障方法的经济性,研究了灌木围障的投入产出比和投资收益率。结果显示,灌木围障成本主要是用工支出,总效益取决于处理区和对照区林木的保存率、单价和定植株数。试验期内,桥北林区2种处理的净增益分别为(2 806.25±37.84)元.hm-2和(490.33±3.47)元.hm-2,旬邑为(711.84±5.45)元.hm-2和(388.25±3.30)元.hm-2。桥北灌木篱笆投资回收期2a,投入产出比1∶5.98;灌木围墙投资回收期为3a,投入产出比1:2.50。旬邑2种处理的回收期均为4a,投入产出比为1∶2.05和1∶1.41。证明灌木围障,尤其是灌木篱笆处理是一种经济有效的林木兔害预防方法。
Shrub enclosure is an effective way to prevent rabbit damage. In order to evaluate the economy of the shrubbery method, the input-output ratio and return on investment of shrubbery were studied. The results showed that the cost of shrubbery was mainly labor cost, and the total benefit was determined by the preservation rate, unit price and number of planted trees in the treated area and the control area. During the experiment period, the net gain of the two treatments in Qiaobei Forest Region was (2 806.25 ± 37.84) yuan · hm-2 and (490.33 ± 3.47) yuan · hm-2, Xunyi was (711.84 ± 5.45) 2 and (388.25 ± 3.30) .hm-2. Bridge North shrub fence investment recovery period 2a, input-output ratio of 1:5.98; shrub wall investment recovery period of 3a, input-output ratio of 1: 2.50. Xunyi two kinds of treatment recovery period of 4a, input-output ratio of 1: 2.05 and 1: 1.41. It is proved that shrubbery, especially shrub hedge, is a cost-effective method to prevent forest rabbit damage.