林草生态综合监测跨角林样地问题探讨

Discussion on Issues of Sample Plots of Straddling Forests in Integrated Monitoring of Forest and Grass Ecology

跨角林样地对林草生态综合监测有较大影响。随着监测技术发展和监测内容扩展,跨角林样地的概念也有所改变。该文对比和分析历年来跨角林样地的概念及其在不同规定、规程和细则中的表述差异,结合当前监测实践中的问题,提出对跨角林样地概念的改进建议。建议跨角林样地新定义为优势植被覆盖类型不是乔木林、竹林或疏林,但包含外延面积超过400 m2乔木林、竹林或疏林的样地。

Sample plots of straddling forests had significant impacts on integrated monitoring of forest and grass ecology.With development of monitoring technologies and expansion of monitoring contents,concepts of sample plots of straddling forests have changed.Concepts of sample plots of straddling forests and differences in different regulations,protocols and rules over years were compared and analyzed.Combined with problems in current monitoring practice,suggestions were put forward to improve concepts of sample plots of straddling forests.It was suggested that new definition of sample plots of straddling forests was that dominant vegetation cover types were not arbor forests,bamboo forests or sparse forests,but sample plots contained arbor forests,bamboo forests or sparse forests with outreach areas of more than 400 m2.