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对福建省东山县海岸基干防护林带中木麻黄 -厚荚相思群落、木麻黄 -湿地松群落和单一木麻黄群落的生物量和能量进行了研究。结果表明 ,基干防护林带中 ,复合群落的生物量和能量均要高于单一群落 ,其中木麻黄 -厚荚相思群落中的生物量和能量最高 ,为 1 670 0 64g·m- 2 和 3 41 685 70kJ·m- 2 ,其次是木麻黄-湿地松群落 1 0 1 0 4 62g·m- 2 和 2 1 0 1 2 8 3 0kJ·m- 2 ,单一木麻黄群落最低 ,为 5 1 2 9 87g·m- 2 和 1 0 5 75 1 40kJ·m- 2 。在木麻黄 -厚荚相思群落中 ,木麻黄各组分干重热值为 1 9 83～ 2 1 5 2kJ·g,厚荚相思各组分热值为2 0 0 0～ 2 3 77kJ·g- 1 ;木麻黄 -湿地松群落 ,木麻黄各组分热值为 1 9 47～ 2 0 83kJ·g- 1 ,湿地松各组分热值为2 0 5 4～ 2 1 5 4kJ·g- 1 ;单一木麻黄群落 ,木麻黄各组分热值为 1 9 98～ 2 1 2 7kJ·g- 1 。在不同群落结构中木麻黄各组分的热值存在着一定的差异 ,木麻黄 -厚荚相思群落中木麻黄各组分热值最大 ,其次是单一木麻黄群落 ,木麻黄 -湿地松群落中最小。不同的混交模式产生不同的混交效果 ,木麻黄 -厚荚相思群落的生物量是木麻黄 -湿地松群落的 1 65倍 ,是单一木麻黄群落的 3 2 6倍 ,能量是木麻黄 -湿地松群落的 1 63倍 ,是单一木麻?
The biomass and energy of Casuarina equisetifolia-Acacia crassicarpa, Casuarina equanata-Pinus elliottii and Casuarina equisetifolia populations in Dongxian County dry-shelter belts in Fujian Province were studied. The results showed that the biomass and energy of the composite community were higher than those of the single community in the trunk shelterbelts, of which the biomass and energy of the Casuarina equisetifolia community was the highest, which was 1670 × 64 g · m -2 and 41 685 70 kJ · m-2, followed by Casuarina equanata-P. elliottii community, and the lowest in a single Casuarina plantation was 5 1 2 9 87 g · m -2 and 1 0 5 75 1 40 kJ · m -2. In the Casuarina equisetifolia-Acacia community, the caloric value of each component of Casuarina equisetifolia was1983 ~ 2152kJ · g, the calorific value of each component of Acacia crassicarpa was200 ~ 2377kJ · g - 1; Casuarina - Slash pine community, the calorific value of each component of Casuarina equisetifolia is 1 9 47 ~ 2 0 83kJ · g-1, and the calorific value of each component of Slash pine is 2 0 54 ~ 2 1 54kJ · g- 1; In the single Casuarina plantation, the caloric value of each component of Casuarina equisetifolia is1998 ~ 2172kJ · g-1. The calorific value of each component of Casuarina equisetifolia differed in different community structure. The caloric value of Casuarina equisetifolia was the highest in Casuarina equisetifolia-Acacia crassicarpa community, followed by that in Casuarina equisetifolia-Casuarina plantation Min. Different mixed mode produced different mixed effects. The biomass of Casuarina equisetifolia-Acacia crassicarpa community was 165 times that of Casuarina equanati-Martophylla community and 3 2 6 times higher than that of single Casuarina equisetifolia plant. The energy was Casuarina equanata - 1 63 times the community, is a single numb?