红锥天然林生长规律与生物量的调查研究

华安金山林场红锥天然林调查表明，红锥生长快，３４～３８年生树高可达２１．９～２３．７ｍ、胸径可达２０～３０ｃｍ。全林保存密度５７２株／ｈｍ２，蓄积量３６６ｍ３／ｈｍ２；Ⅱ级立地级保存红锥６００株／ｈｍ２，蓄积量高达４８３ｍ３／ｈｍ２，生物量５００．８７ｔ／ｈｍ２，材积年生长量可达１３．４ｍ３／ｈｍ２；Ⅲ级立地红锥蓄积量３４２ｍ３／ｈｍ２，生物量３５４．６５ｔ／ｈｍ２。林分生产力很高，树高速生期为４～１８年生。胸径速生期为６～１４年生，材积速生期为１０～２７年生，３４～３８年生的红锥尚未达到数量成熟。表明红锥适应性强，不苛求立地，生长潜力大，极有发展前途。

Investigation on the Growth Law and Biomass of Castanopsis hystrix Natural Forest

The investigation on Castanopsis hystrix natural forest on Jinshan Forest Farm of Huaan indicates that the growth of C.hystrix is fast, the height and dbh of 34 to 38-year-old forest trees may reach 219～237m and 20～30cm,respectively;the preservative density of the whole forest is 572 trees/hm2 and the stocking is 366m3/hm2;the fast growing period of height,dbh and volume is the age of 4 to 18 years,6 to 14 years and 10～27 years,respectively;34 to 38-year-old C.hystrix trees have not reached the quantitative maturity yet; the adaptability of C.hystrix is strong;This species makes no excessive demands for site;its productive potential is large;and it extremely has developmental prospects.