摘要
对福建省平潭岛木麻黄防护林带的生物量和生产力进行了测定和研究．按“径阶标准木法”调查了乔木层、枯枝落叶层，应用“相对生长法”建立了估测木麻黄防护林带单株各器官干重的回归方程，相关系数达到极显著水平．文中还研究了林带生物量分配、结构及增长动态，并对防护林带生态系统的性质和生产能力进行评定．结果表明，木麻黄林带生物量平均为１４１．１７吨／公顷，净初级生产力为２４．３９６吨／公顷·年，其中树干生物量占自身总量的６１．８％，根占１９．０２％，枝占１１．４３％，叶占７．７４％．
Determing the biomass and the productibility Of Chsuarina equisetifolia shelter belt on Pintan island. Fujian, the paper investigates the arborous layer and withered branch deciduous leaf layer in 'the method Of standard tree of stem step'. According to the materials, we establish the single tree's various organ's dry weight of Chsuarina equisetifolia shelter belt, which of relation coefficient come up to very remarkable standard.The paper also study on biomass's assignation, struture, and increase trends and judge on ecosystem quality and productibility of the shelter belt. The result makes known that Glsuarina equisetifolia shelter belt average biomass is 141. 17 t/ha, and the net primary productibility is 24. 396 t/ha' a, in which the stem's biomhss makes up 61. 8 percent of the total output mass of the tree. The root biomass makes up 19 .02percent. The leaf makes up 7. 74 percent.
出处
《福建师范大学学报（自然科学版）》
CAS
CSCD
1996年第1期113-118,共6页
Journal of Fujian Normal University：Natural Science Edition
基金
国家自然科学基金
关键词
木麻黄
生物量
生产力
防护林
Casuarina equisetifolia shelter belt, biomass, productibility
