一种高寒草地草产量快速测定工具的设计和试验

Design and Experiment of a Rapid Measurement Tool of the Grassland Aboveground Productivity in Qinghai-Tibet Plateau

为解决青藏高原天然草地在草产量测定过程中费时、繁琐、草地破坏严重以及对工作人员的潜在危害较大等问题,利用植物群落草层高度、盖度、密度等综合指标与天然草地草产量间的相关性,建立函数关系,并制作成简易的测草杖进行草产量的快速测定。结果表明,与传统的样方法相比,该测草杖可节约时间75%左右,节省劳动力50%左右,降低50%～80%左右成本,同时也保障了工作人员的健康。

In order to save time and labor,reduce grassland disruption and protect the worker＇s health while measuring the above-ground biomass of alpine grassland in Qinghai-Tibet Plateau,a new grass measuring ruler was invented and evaluated.It is marked with 1-cm alternating black and white bands indicating the estimated above-ground biomass at different grass height.The result showed that the grass measuring ruler can save 75 percent time and 50 percent of labor,and reduce 50～80percent of the cost compared to the traditional quadrat sampling method.Inaddition, the workers do not have to kneel or sit on the ground while using the grass measuring ruler,which ensure the health of workers and avoid occurrence of some occupational diseases.By using the grass measuring ruler,the worker＇s burden was reduced.