杉木人工林健康评价研究——以福建将乐林场为例

Health Assessment of Cunninghamia lanceolata Plantations:A Case Study of Jiangle Forest Farm in Fujian Province

利用层次分析法构建一套能客观评价杉木人工林经营周期森林健康的评价指标体系,以福建省将乐林场杉木人工林为例,分别评价1996年和2007年杉木人工林健康状况,分析10a动态变化。结果表明,2期整体评价结果均为健康水平,10a间,幼龄林的健康水平有所下降,且2期评价结果均为亚健康,中龄林健康水平从亚健康上升到健康,近、成过熟林的健康状况均有所上升,且2期结果均为健康水平。1996年各龄组健康水平排序为:近熟林>成、过熟林>中龄林>幼龄林,2007年各龄组健康水平排序为:中龄林>成、过熟林>近熟林>幼龄林,评价结果符合实际,为杉木人工林健康评价提供了科学方法。

In this study, a set of index system for objectively assessing the health condition of Cunningharnia lanceolata plantations in different management periods was established with analytic hierarchy process. Taking the C. lanceolata plantations in Jiangle Forest Farm of Fujian Province as an example, we analyzed the decennary dynamic changes by assessing the health condition of the plantations in the year of 1996 and 2007, respectively. The overall evaluation results of plantations in these two periods were both healthy. In the ten years, the health level of young growth declined, and belonged to sub-healthy level. For the middle-aged forest, the health level changed from sub-healthy to healthy. The health levels of near-mature, mature and overmature forests improved and were healthy in both year. The health levels of different age groups in 1996 were in an order of near mature forest〉nature and overmature forest〉midmaturation forest〉young forest, in 2007 however, the order was mid-maturation forest〉mature and over- mature forest〉near mature forest〉young forest. The evaluation results were in accordance with the actual situations, and provided scientific methods for health assessment of C. lanceolata plantations.