内蒙古典型草原黄囊苔草生长动态对气象因子的滞后响应分析

发布时间：2018-06-19 10:11

  本文选题：地上生物量 + 气象因子　； 参考：《草地学报》2017年02期

【摘要】：在全球变化与陆地生态系统关系的研究中,气候和植被相关关系的研究具有非常重要的意义。本文以2014年内蒙古草原生态系统定位站提供的气象数据资料为基础,运用灰色相对关联度以及含有时滞参数的灰色系统模型,分析了内蒙古典型草原区域尺度黄囊苔草(Carex korshinskyi)地上生物量对6种气象因子的响应。结果表明:黄囊苔草对6种气象因子的响应均有滞后效应。黄囊苔草地上生物量对降水量、气温、地温、蒸发量、相对湿度、日照时数的响应分别滞后10,16,16,10,15,5d。此结果将有助于更加深入理解气象因子对植物群落的影响机制,并为草地植被生产力建模与定量预测提供信息基础,以期在实践应用中发挥更高的价值。
[Abstract]:In the study of the relationship between global change and terrestrial ecosystem, the study of the relationship between climate and vegetation is of great significance. Based on the meteorological data provided by Inner Mongolia grassland ecosystem Positioning Station in 2014, the grey system model with relative grey correlation degree and time-delay parameters is used in this paper. The response of aboveground biomass of Carex korshinskyi) to six meteorological factors in typical grassland of Inner Mongolia was analyzed. The results showed that the response of Carex sinensis to six meteorological factors had hysteresis effect. The response of biomass to precipitation, air temperature, soil temperature, evaporation, relative humidity and sunshine time on the grassland of Carex amurensis was 10 ~ 16 ~ 16 ~ 10 ~ 10 ~ 15 ~ 15 ~ 5 days, respectively. The results will be helpful to understand the influence mechanism of meteorological factors on plant communities, and provide information basis for modeling and quantitative prediction of grassland vegetation productivity, in order to play a higher value in practical application.
【作者单位】： 内蒙古农业大学草原与资源环境学院;内蒙古农业大学理学院;
【基金】：国家自然科学基金项目(31160091) 内蒙古农业大学基础学科科研启动基金项目(jc2011004)资助
【分类号】：S812
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本文编号：2039531