生物多样性 ›› 1999, Vol. 07 ›› Issue (1): 1-7.DOI: 10.17520/biods.1999001
• 论文 •
YANG Yu-Sheng1), QIU Ren-Hui1), YU Xin-Tuo1), Huang Bao-Long2)
Abstract: Soil microbes , soil enzyme activity and soil biochemical action intensity in the stands of the broadleaf forest and Cunninghamia lanceolata stand of the first , the second , the third planting were studied comparatively. The results indicated that , through the substitution of Cunninghamia lanceolata plantation ( the
first planting) for broad-leaf forest and then the continuously planting Cunninghamia lanceolata , the total
quantity of major soil microbes declined , of which the first rotation of Cunninghamia lanceolata was decreased
by 59. 88 % in the top soil (0～20 cm) compared with that of the broadleaved forest , and that of the second
and the third rotation was of 14. 68 % , 16. 51 % respectively compared with that of the first rotation. The
proportion of bacteria and fungi in the amount microbes increased , while that of actinomyces decreased. The
amount of major physiological group including ammonifiers , nitrogenfixing bacteria , cellulosedecomposing microbes , aerobic nitrogen fixing bacteria and anaerobic nitrogen fixing bacteria all decreased. The activity of soil
enzyme weakened which include invertase , urease , proteinase , acid phosphtase , catalase and perxidase. Soil
biochemical action activity impared which include ammonification , nitrification , nitrogen fixation , and decomposition of cellulose. As to the soil respiration , the release amounts of CO2-decreased , while the RQ value increased. All of which may led to the degradation of the soil fertility.
杨玉盛, 邱仁辉, 俞新妥, 黄宝龙. 杉木连栽土壤微生物及生化特性的研究[J]. 生物多样性, 1999, 07(1): 1-7.
YANG Yu-Sheng, QIU Ren-Hui, YU Xin-Tuo, Huang Bao-Long, . Study on soil microbes and biochemical activity in the continuous plantations of Cunninghamia lanceolata[J]. Biodiv Sci, 1999, 07(1): 1-7.
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