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太行山国有林管理局海眼寺林场的林分大多数为20世纪七八十年代的人工林,由于未抚育、抚育不及时或受自然因素的影响,林分结构和稳定性失调,林木生长发育衰退,系统功能退化或丧失,导致森林生态功能、林产品产量或生物量显著低于同类立地条件相同林分平均水平。其主要表现是:稳定性差,病虫害严重,抵御风折、雪压等气候灾害能力弱;群落结构单一,在生物基因、物种、生态系统和景观4个层次上多样性低;人工林质量差,单位面积蓄积量为31.65 m3/hm2,生产力水平低。
Most of the stands in the sea temple of the Taihangshan National Forest Bureau are artificial forests in the seventies and eighties of the 20th century. Due to the lack of cultivation, the improper tending or the natural factors, the disturbance of the structure and stability of the stands and the growth and development of trees Degradation, degradation or loss of system function, leading to the ecological function of forest, yield or biomass of forest products was significantly lower than the same stand average of the same site conditions. Its main manifestations are as follows: poor stability, severe pests and diseases, weak wind and snow pressure and other climate disasters; single community structure, low diversity at four levels of biological genes, species, ecosystems and landscapes; poor quality of plantations, Unit area volume is 31.65 m3 / hm2, productivity is low.