太行山石灰岩区连翘水保经济林林分模式研究

Study on Patterns of Forsythia suspensa Water and soil conservation Stands in Limestone Region of Taihang Mt

利用太行山石灰岩区野生连翘标地调查材料，分别拟合了连翘产量（果实鲜重）及连翘覆盖度与连翘灌丛密度的回归方程。由拟合方程导出，阳坡连翘灌丛适宜经营密度范围为４０００丛／ｈｍ２～５０００丛／ｈｍ２，阴坡为３０００丛／ｈｍ２～４０００丛／ｈｍ２。在此密度范围内，能形成一个以连翘为主体（盖度０．６以上）灌、草相结合的灌草丛群落。此外对灌草林地类型中。

Based on the data of wild Forsythia suspensa plots in limestone region of Taihang Mt regression functions are fitted to predict the output and covering degree from density Deduced from the functions,the optimum management density ranged from 4 000 to 5 000 clumps per hm 2 in south slopes, and 3 000 to 4 000 clumps in north slopes,in which ranges there can forms a shrub grass community combining Forsythia suspensa,as the main part,with other shrubs and grasses Forsythia suspensa layering test was also conducted in the shrub grass type of lands