Biological Productivity and Nutrient Distribution in Over-mature Plantation of Cunninghamia lanceolata

cje ›› 1988, Vol. ›› Issue (1): 13-18.

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Biological Productivity and Nutrient Distribution in Over-mature Plantation of Cunninghamia lanceolata

Deng Shijian, Wang Kaiping, Gao Hong

Institute of Applied Ecology, Academia Sinica, Shenyang

Received:1987-04-03 Revised:1987-08-14 Online:1988-02-10

Abstract

Abstract: The standing stock, standing crop, net production and nutrient contents of two over-mature stands of Cunninghamia lanceolata plantation were investigated. One stand was of 60 years old in a valley and the another of 56 years old on a slope. The data presented hcre were obtained by allometric method. The standing stock, standing crop, net production and contents of the nutrient—N, P₂O₅, K₂O, CaOand MgOwere 1498m³/ha, 644.08t/ha, 6.353t/ha·yr and 10736.49kg/ha respectively for the stand in the valley, and 817m³/ha,328.60t/ha, 6.190t/ha·yr and 5210.53kg/ha respectively for the stand on the slope.

Key words: Pinus massoniana, Genetic provenance, Geographical variation, Review

Deng Shijian, Wang Kaiping, Gao Hong. Biological Productivity and Nutrient Distribution in Over-mature Plantation of Cunninghamia lanceolata[J]. cje, 1988, (1): 13-18.

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Biological Productivity and Nutrient Distribution in Over-mature Plantation of Cunninghamia lanceolata

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