国际沙棘研究与开发
國際沙棘研究與開髮
국제사극연구여개발
THE GLOBAL SEABUCKTHORN RESEARCH AND DEVELOPMENT
2014年
1期
39-45
,共7页
黄土区%植被结构%立地类型%混交林%生物量
黃土區%植被結構%立地類型%混交林%生物量
황토구%식피결구%입지류형%혼교림%생물량
loess area%vegetation structure%site type%mixed forest%biomass
山西吉县蔡家川流域，在九十年代进行了大面积的人工造林，其中阔叶林主要是刺槐林及刺槐与侧柏的混交林，研究其植被结构对以后人工林的营造和抚育有重要意义。分坡向、坡度和混交类型，选择了不同类型的24块标准地，测定各标准地内乔木的树高、胸径、冠幅和枝下高，利用二元材积表，计算样地的立木材积量，同时测出草本层的生物量和枯落物层的生物量。通过比较草本层、枯落物层的生物量和乔木层的材积量，由此确定在不同的立地类型内种植何种混交林最佳。
山西吉縣蔡傢川流域，在九十年代進行瞭大麵積的人工造林，其中闊葉林主要是刺槐林及刺槐與側柏的混交林，研究其植被結構對以後人工林的營造和撫育有重要意義。分坡嚮、坡度和混交類型，選擇瞭不同類型的24塊標準地，測定各標準地內喬木的樹高、胸徑、冠幅和枝下高，利用二元材積錶，計算樣地的立木材積量，同時測齣草本層的生物量和枯落物層的生物量。通過比較草本層、枯落物層的生物量和喬木層的材積量，由此確定在不同的立地類型內種植何種混交林最佳。
산서길현채가천류역，재구십년대진행료대면적적인공조림，기중활협림주요시자괴림급자괴여측백적혼교림，연구기식피결구대이후인공림적영조화무육유중요의의。분파향、파도화혼교류형，선택료불동류형적24괴표준지，측정각표준지내교목적수고、흉경、관폭화지하고，이용이원재적표，계산양지적립목재적량，동시측출초본층적생물량화고락물층적생물량。통과비교초본층、고락물층적생물량화교목층적재적량，유차학정재불동적입지류형내충식하충혼교림최가。
Study on the vegetation structure of well developed artificial forest will benefit for new building and cultivation in future. Preliminary investigations were carried out on the mixed forest in the watershed of Caijiachuan basin in Shanxi province, which a large area of artificial afforestation in the ninety’ s with the broad-leaved forest of mainly robinas and mixed forest by robinas and platycladus. Tree height, diameter of breast-height, crown, and the stem height under branch were measured, within chosen 24 different kinds of sample plots idertified by slope direction, slope grade and forest mixed types. Using the binary volume table, calcu-late the stocking quantity of sample plots, and the biomass of grass and litter were surveyed at the same time. Through comparing the biomass of grass layer, litter layer and tree layer volume quantity, to determine which mixed forest in different site type planting best.
