日本落叶松人工林生境质量的评价

通过对日本落叶松人工林的调查，在分析优势木高生长过程的基础上选择了Richards生长函数H＝a(1-e^-bA)^c作为优势高生长模型，标准年龄为20年，应用比例法编制了评价生境质量的立地位指数表。查立地指数表，指出立地指数相同的林分，将环境因子分解，画出林分优势高生长过程曲线，可直观的发现不同生境因子在其生长过程中的影响不一样，可更好地通过立地指数表动态的评价其生境质量的好坏。

The Habitatal Quahity Evaluation of Artificial Japanese Larch Woods

On the basis of investigating the artificial Japanese larch woods,this paper deals the dominant height growth model with the twenty years old basline as a standard target by using Richards function H=a(1- e -bc )c , and the scale map was drawn up to evaluate the site index table of habitatal quality.The effects of some habitatal factors on woods were directly found by seeking woods with the same site index in site index table and decomposing environmental factors to daw out dominant height growth curve of woods, it's also found that habitatal quality to be more dynamically evaluated by site index table.