深圳福田无瓣海桑-海桑林能量的研究

摘要/Abstract

摘要： 在研究生物量、生产力的基础上,对深圳福田无瓣海桑海桑林中2种红树植物海桑和无瓣海桑各组分的干重热值、林分能量现存量、年能量净固定量进行了研究.结果表明,各组分样品干重热值有一定的差异,树叶干重热值最高,细根干重热值最低;海桑各组分样品干重热值比无瓣海桑相应组分稍高.林分能量现存量(1999年10月)为84774.72kJ·m^-2,其中无瓣海桑种群能量现存量为54693.26kJ·m^-2,占林分总量的64.54%,海桑种群能量现存量为30051.46kJ·m^-2,占林分总量的35.46%.林分凋落物的能量归还量(1999年)为24549.54kJ·m^-2·年^-1,其中无瓣海桑种群的能量归还量为17223.99kJ·m^-2·年^-1,占总林分的70.16%,海桑种群的能量归还量为7325.55kJ·m^-2·年^-1,占总林分的29.84%.林分能量净固定量为50391.4kJ·m^-2·年^-1,其中无瓣海桑种群和海桑种群的能量净固定量为分别为31778kJ·m^-2·年^-1和18613.4kJ·m^-2·年^-1.

关键词: 无瓣海桑, 海桑, 热值, 能量, 深圳福田, 碳汇, 碳化, 温室气体清单编制, 钢渣, 不确定性

Abstract: Based on the measurement of biomass and productivity, the caloric value of different fractions of two species in S.apetala-S.caseloris forest, and their standing crop of energy and net energy production were determined. There were some differences in caloric values among the fractions of S. apetala and S. caseloris, and the caloric value of leaf was the highest,while that of the fine roots was the lowest. The caloric values of various fractions of S.apetala were much higher than those of S.caseloris .The standing crop of energy in S.apetala S.caseloris forest was 84744.72 kJ穖^-2 . The standing crop of energy accumulated in S. apetala population was 54693.26 kJ穖^-2, accounting for 64.54 % of the total, and that of S.caseloris population was 30051.46 kJ穖^-2, accounting for 35.46%. The energy return value of litters was 24549.54 kJ穖^-2 穣r^-1,that of S.apetala population was 17233.99 kJ穖^-2 穣r^-1 (accounting for 70.16%), and that of S.caseloris population was 7325.55 kJ穖^-2 穣r^-1 (29.84%).The net energy production was 50391.4 kJ穖^-2 穣r^-1 for S. apetala S. caseloris forest in1999, in which the net energy production of S. apetala population was 31778 kJ穖^-2 穣r^-1 .

Key words: Sonneratia apetala, Sonneratia caseloris, Caloric value, Energy, Futian of Shenzhen, carbonation, carbon sink, steel slag, greenhouse gas inventory, uncertainty

中图分类号:

Q948

昝启杰, 王伯荪, 王勇军. 深圳福田无瓣海桑-海桑林能量的研究[J]. 应用生态学报, 2003, (2): 170-174.

ZAN Qijie, WAN Bosun, WANG Yongjun. Energy situation of Sonneratia apetala-S caseloris forest in Futian of Shenzhen[J]. Chinese Journal of Applied Ecology, 2003, (2): 170-174.

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