%0 Journal Article
%T STUDY ON CHANGES OF SOIL FERTILITY AS AFFECTED BY THE REPLACEMENT OF BROADLEAVED STAND BY CHINESE FIR STAND IN NANPING<br>南平溪后杉木林取代杂木林后土壤肥力变化的研究
%A Yang Yu-sheng
%A Li Zhen-wen
%A Yu Xin-tuo
%A He Zong-ming
%A <br>杨玉盛
%A 李振问
%J 植物生态学报
%D 1994
%I Editorial Office of Chinese Journal of Plant Ecology
%X The changes of soil fertility in a 70 year old fast-growing,highyield Chi-nese fir stand,which was originally occupied by a broadleaved stand,were studied for 2 consecutive years in Anchaoxia,Qihou,Nanping The results show-ed that the soil fertility of the 70-year-old fast-growing high-yield-Chinese fir stand had declined obviously. In comparison with the original broad-leafed forest stand,the Chinese fir site showed increased soil bulk density, decreas-ed soil organic matter content and nutrient element concentrations, and dimi-nishing soil enzyme and other biological activities.The reason that the 70-year-old Chinese fir stand still maintains relatively high fertility is that the increased undercanopy space facilitates the maintenance of high species dive-rsityand biomass production.
%K Chinese Fir Stand
%K Broadleaved stand
%K Soil nutrient
%K Soil enzyme activity
%K Soil metabolism<br>杉木林
%K 杂木林
%K 土壤养分
%K 土壤酶活性
%K 土壤氧化代谢能力
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=2F2173CCFF292BF447DC2681EA33BBAE&aid=2B85C1C0E5B0E25908B328FF806DAB8C&yid=3EBE383EEA0A6494&vid=13553B2D12F347E8&iid=38B194292C032A66&sid=FBCA02DBD05BD4EA&eid=0C191C6ECF79047F&journal_id=1005-264X&journal_name=植物生态学报&referenced_num=41&reference_num=16