Energy characteristics of alder cypress mixed plantation ecosystem

Abstract

Abstract: Studies on the energy characterisitcs of 11 years old alder-cypress mixed plantation ecosystem in hilly area of central Sichuan Province show that the caloric value of plant varied with species, organs, distributive layers and seasons. The standing energy storage of the ecosystem was 237.53 ×10¹⁰ J·hm^-2, and the energy return in the form of litterfall was 7.55×10¹⁰ J·hm^-2 ·yr. ^-1, 70.29% of which was in the form of leaf fall. Net energy fixation was 26.73×10¹⁰ J·hm^-2 ·yr. ^-1, and energy conversing efficiency was 2.34%. It is suggested that the alder-cypress mixed plantation is an ecosystem with high energy fixation and high energy conversing efficiency.

Key words: Alder-cypress mixed plantation, Energy characteristics, Energy conversing efficiency, nutrient, non-structural carbohydrate, Quercus variabilis, provenance, thermal tolerance

Peng Peihao, Wang Jinxi, Hu Zhenyu, Gao Huadong . Energy characteristics of alder cypress mixed plantation ecosystem[J]. Chinese Journal of Applied Ecology, 1998, 9(2): 113-118.

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