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采用时空代换法,以福建省宁化县严重退化紫色土人工林生态系统为对象,按侵蚀强度由强到弱选取4种生态恢复措施Ⅰ、Ⅱ、Ⅲ、Ⅳ,研究了植物多样性与生态系统过程的关系。结果表明,该紫色土退化生态系统的植物出现43科78属86种,种子植物属15个分布类型中出现12个。沿恢复梯度,植物的生活型谱逐渐丰富,种子植物属各分布区类型出现的属数趋于增加,各种叶特征所对应的植物属数依次增多。可见,生态恢复过程中的植物区系与群落外貌越来越复杂和多样化,该紫色土生态系统渐趋稳定。表6参14。
Taking the seriously degraded purple soil artificial forest ecosystem in Ninghua County, Fujian Province as an object, four kinds of ecological restoration measures Ⅰ, Ⅱ, Ⅲ and Ⅳ were selected according to the intensity of erosion from strong to weak, and the relationships between plant diversity and The relationship between ecosystem processes. The results showed that there were 86 species belonging to 78 genera and 43 families in this degraded purple soil ecosystem and 12 species were found in 15 distribution types of seed plants. Along the recovery gradient, life forms of plants are gradually enriched. The number of genera appearing in each distribution area of seed plants tends to increase, and the number of plant species corresponding to various leaf features successively increases. It can be seen that the flora and community appearances in the process of ecological restoration are more and more complex and diversified, and the purple soil ecosystem has gradually stabilized. Table 6 Reference 14.