In order to understand the relation between primary production, energy flow and carbon recycle in grassland ecosystem, climatic factors and artificial disturbance, a grazing experiment with different grazing management treatments(different grazing intensities and nitrogen applications) was carried out in a snow pasture of the National Grassland Research Institute located in Nishinasuno, the central area of Japan from 1974 to 1994. As a part of these studies, the aim of present study was to assess the temporal changes in aboveground dead material(standing dead and litter) over a 21-year period since 1974. The result showed that the amount of aboveground dead material varied greatly seasonally and yearly, and also tended to have a high positive correlation with the aboveground biomass. The result of an analysis of variance(ANOVA) showed aboveground dead material was influenced strongly by grazing intensity, year, month(p<0.01), the temporal changes of aboveground dead material were independent of the nitrogen application levels.
亦如瀚1, 盐见正衛2, 高桥繁男3, 大久保忠旦4. 日本中部不同放牧条件下人工草地地上枯死量的时间变化*[J]. , 2004, 23(4): 335-337.
YI Ru-han1, Masae Shiyomi2, Shigeo Takahashi3, Tadakatsu Okubo4. Temporal changes in aboveground dead material under different grazing conditions in a snow pasture in central Japan. , 2004, 23(4): 335-337.
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