杉木林下植被对5～15cm土壤性质的改良  

Effect of Undergrowth in Chinese Fir Plantation on Soil Properties in the 5～15 cm Layer

作　　者：杨承栋[1] 焦如珍[1] 屠星南[1] 熊有强[1] 陈仲庐[1] 

机构地区：[1]中国北京林业科学研究院林业研究所,中国林业科学研究院亚热带实验中心

出　　处：《林业科学研究》1995年第5期514-519,共6页Forest Research

基　　金：1989~1993年国家自然科学基金

摘　　要：对江西大岗山山下林场杉木人工林５～１５ｃｍ土壤性质研究结果表明：土壤中细菌、放线菌、真菌数量，细菌中芽孢杆菌、放线菌中灰色菌丝群以及真菌中的曲霉和木霉数量，随林下植被盖度的增大而提高。土壤酶活性强度、腐殖质各组分Ｃ的含量，在１６和１８地位指数级样地，随林下植被盖度增大而提高，１４地位指数级相反，在１６地位指数级土壤有机质、速效Ｎ、交换性盐基总量，以及１８地位指数级土壤有机质、全Ｎ、速效Ｎ、Ｐ、Ｋ、Ｍｇ＋＋和Ｃａ＋＋含量，均随林下植被盖度的增大而提高。Research on effect of undergrowth in Chinese fir plantation on the soil prop-erties in the 5～15 cm layer was conducted in the Dagang Mountain,Shan Xia Forest Farm,Jiangxi Province. The results show that the amount of bacteria,actinomycetes,fungi,bacil-lus spp in bacteria,grey hyphae in actinomycetes and trichoderma pers,ex Fr,Aspergillusin fungi increase with the increase of the undergrowth coverage, Soil enzyme activity,andcarbon content of various composition of humus in the 16 and 18 site index plots also increasein positive proportion with the increase of the undergrowth,however,in the 14 site indexplot,the results turn out contrary to the former. Amount of soil organic matter,available Nand total exchangeable base in the 16 site index plot increase with the increase of the under-growth coverage. Amount of soil organic matter,total N,available N,P,K and Ca2+,Mg2+cotent in the 18 site index plot also increase with the increase of the undergrowth coverage.

关 键 词：杉木 林下植被 土壤性质 

分 类 号：S791.270.1[农业科学—林木遗传育种]