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应用梯度格局法在长白山北坡海拔700m-2600m的坡面上每100 m海拔设置一样地,共计20块样地,通过对同一群落各样方间的相异性测定,对各海拔植物群落的复杂性进行了分析。结果表明,以主林层乔木种的二元数据计算的结果,除亚高山岳桦林外,其它各海拔群落的样方间均表现出较高的相异性,特别是低海拔的阔叶红松林平均相异系数达0.74,明显高于其它植被类型;暗针叶林各群落间差异不大,相对而言1400 m群落样方间的相异性略高于其它群落,表现出过渡性群落树种组成的复杂性;岳桦林树种组成简单,样[(267275274344322262261355317326263366275317270337265304317340313306320324241243)-0.1(322324271340304276326326265304266376324252312375276335274306313343265304310272)]落内的相异性,虽低海拔的阔叶红松林总体上高于其它群落,但差异趋势并不像乔木种那么明显。以各草本植物与所有植物种的二元数据计算的各海拔群落内样方间的相异性,表现出非常相近的趋势,群落内样方间草本植物及所有植物种均以阔叶红松林及高山冻原差异最大,暗针叶林基本稳定于比较相近的水平。图3表1参8。
A total of 20 plots were set up every 100 m above sea level on the slopes of 700m-2600m above sea level on the northern slope of Changbai Mountain using the gradient pattern method. By measuring the diversity of different plots in the same community, Sexuality was analyzed. The results showed that the results of binary data of arbor species in the main forest showed that, except the sub-alpine mountain birch forest, there was a high degree of heterogeneity among the quadrats in all altitudes, especially the low-altitude broad-leaved red The average coefficient of variation of pine forest was 0.74, which was significantly higher than other vegetation types. There was no significant difference among the coniferous forest communities, while the relative difference between the quadrats of 1400 m community was slightly higher than that of other communities, showing a transitional community tree species Composition of the complexity; Eucalyptus bark species composition is simple, like [( 267 275 274 344 322 262 261 355 317 326 263 366 275 317 270 337 265 304 317 340 313 306 320 324 241 243) -0.1 ( 322 324 271 340 304 276 326 326 265 304 266 376 324 252 312 375 276 335 274 306 313 343 265 304 310 272)] the difference within the fall, although the low-altitude broad-leaved Korean pine forest is generally higher than the other However, the trend of difference is not as obvious as that of arborous species. The heterogeneity of quadrats in each elevation community calculated by binary data of each herbaceous plant and all plant species showed a very similar trend. The herbaceous plants and all plant species in the quadrats in the community were broad-leaved Korean pine forest and Alpine tundra, the largest difference, dark coniferous forest basically stable at a relatively similar level. Figure 3 Table 1 reference 8.