杉木、火力楠纯林及混交林细根周转的研究

应用生态学报 ›› 1995, Vol. 6 ›› Issue (1): 5-10.

杉木、火力楠纯林及混交林细根周转的研究

廖利平, 陈楚莹, 张家武, 高洪

中国科学院沈阳应用生态研究所, 沈阳 110015

收稿日期:1994-03-04 修回日期:1994-05-23 出版日期:1995-01-25 发布日期:1995-01-25
基金资助:
国家自然科学基金

Turnover of fine roots in pure and mixed Cunninghamia lanceolata and Michelia macclurei forests

Liao Liping, Chen Chuying, Zhang Jiawu, Gao Hong

Institute of Applied Ecology, Academia Sinica, Shenyang 110015

Received:1994-03-04 Revised:1994-05-23 Online:1995-01-25 Published:1995-01-25

摘要/Abstract

摘要： 系统研究了杉木、火力楠纯林及混交林细根生物量、生产力及年周转率。结果表明,杉木、火力楠纯林及混交林活细根生物量分别为880、3035和1560kg·ha^-1;死细根生物量为235、398和565kg·ha^-1;细根年周转率为1.29、1.42和1.40;年生产量为1137、4318和2179ha·ha^-1,年死亡量为497、595和1149kg·ha^-1,分别相当于林分枯枝落叶年凋落量的36.8、21.6和65.9%.可见混交林比纯林更具较高生产力和良好的生态协调性。

关键词: 细根, 生物量, 生产力, 细根周转

Abstract: Studies on biomass, productivity and annual turnover of fine roots in pure and mixed C.lanceolata and M.macclurei forests show that the biomass of living fine roots in threestands of pure and mixed forests is respectively 880, 3035 and 1560 kg·ha^-1, and that ofdead ones is 235, 398 and 565kg·ha^-1, respectively.The annual turnover of fine roots is 1.29, 1.42 and 1.40, their annual productivity is 1137, 4318 and 2179 kg·ha^-1, and annual mortality is 497, 595 and 1149 kg·ha^-1, corresponding to 36.8.21.6 and 65.9% ofannual litter fall in each stand.It is concluded that mixed plantation has a higher productivity and better ecological coordination than pure stand.

Key words: Fine root, Biomass, Productivity, Turnover of fine roots

廖利平, 陈楚莹, 张家武, 高洪. 杉木、火力楠纯林及混交林细根周转的研究[J]. 应用生态学报, 1995, 6(1): 5-10.

Liao Liping, Chen Chuying, Zhang Jiawu, Gao Hong . Turnover of fine roots in pure and mixed Cunninghamia lanceolata and Michelia macclurei forests[J]. Chinese Journal of Applied Ecology, 1995, 6(1): 5-10.

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