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

Abstract

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

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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