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为了更深入的了解复垦地不同植物配置模式的群落学特征,更好的进行复垦地不同植物配置模式物种多样性监测,采用CTFS(Centre for Tropical Forest Science)样地建立标准,于2010年在安太堡露天矿区排土场复垦地建立了刺槐+油松混交林配置模式的固定监测样地。通过对野外调查资料的初步分析以及与复垦初期种植模式对比研究得出:复垦17年后,样地内除刺槐和油松外,还有入侵定居种榆树,共10073个活个体,样地内整体存活情况较好,枯死个体仅占样地内个体总数的0.7%。复垦17年后样地优势种为刺槐,从胸高断面积和重要值方面均表现出明显的优势度。样地内所有个体径级呈明显倒“J”型分布,总体更新状况较好;各树种的径级结构呈峰型或“L”型。在树种的空间分布格局上,初期种植刺槐和油松均呈明显均匀分布,复垦17年后刺槐、油松和榆树的空间分布与种子性质和生境密切相关,且由于初期植被根系覆盖率低,地形土壤条件较不稳定,自然滑动及雨水冲刷造成了复垦17年后刺槐和油松个体发生了一定的位移。
In order to better understand the community characteristics of different plant allocation patterns in reclamation land and better monitor the species diversity of different plant allocation patterns in reclamation, establish a standard using the CTFS (Center for Tropical Forest Science) plots in 2010 A fixed monitoring plot of mixed locust / Pinus tabulaeformis plantations was set up in the reclamation site of the Antaibao opencast mine. Through the preliminary analysis of the field survey data and comparison with the initial reclamation planting pattern, we can draw that after 17 years of reclamation, in addition to the locust tree and Pinus tabulaeformis, there are also 1009 living individuals, Overall survival is better, dead individuals accounted for only 0.7% of the total number of individuals within the sample. After 17 years of reclamation, the dominant species in this plot was Robinia pseudoacacia, showing obvious dominance in terms of the area of breast height and the critical value. The average size of all the individuals in the sample plots showed “J” type distribution, the overall update status is better; the diameter structure of each species showed a peak or “L” type. In the spatial distribution pattern of tree species, the primary planting acacia and Pinus tabulaeformis were obviously uniform distribution. After the reclamation for 17 years, the spatial distribution of acacia, Pinus tabulaeformis and elm was closely related to the seed quality and habitat. Because of the low root coverage , The topography of soil conditions are less stable, natural slides and rain scour caused the reclamation 17 years after the occurrence of individual locust and Pinus tabulaeformis a certain displacement.