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地位指数表是评定人工林立地质量的林业用表,它以林分优势高确定森林生产力的等级,也是决定森林各种经营措施的基础数表。 刺槐是江苏沿海主要造林树种。1985年我们在沿海各县的人工实生刺槐林内,收集临时样地材料180块,选伐平均优势木树干解析24株,编制了“江苏沿海刺槐地位指数表”,现将编表程序简述于下。 一、资料收集 资料收集范围为赣榆、滨海、射阳、大丰、东台和如东等县。样地选设在平地、河堤、海堤郁闭度在0.4以上的刺槐实生人工林内,面积一亩。 由于沿海河堤及海堤刺槐林均成带状,
The status index table is a forestry table to evaluate the site quality of plantations. It determines the level of forest productivity based on the superiority of stands and is also the basic table for determining various forest management measures. Robinia pseudoacacia is the main afforestation tree species in Jiangsu. In 1985, we collected 180 samples of temporary plots in the artificial-born Robinia pseudoacacia in the counties along the coast, and analyzed the 24 trees with the average superiority of tree trunking, and compiled the Index Table of Status of Robinia pseudoacacia in Jiangsu Province. under. First, the collection of data collection Ganyu, Binhai, Sheyang, Dafeng, Dongtai and Rudong counties. Sample selection in the flat, river embankment, seawall closure density of 0.4 in the above artificial black locust tree plantation, an area of one acre. As the coastal embankments and seawall Robinia pseudoacacia are banded,