香港山坡地草本、灌木群落的植物能量生产

应用生态学报 ›› 2001, Vol. ›› Issue (3): 374-378.

香港山坡地草本、灌木群落的植物能量生产

管东生

中山大学环境科学系, 广州 510275

收稿日期:1999-09-28 修回日期:1999-12-16 出版日期:2001-05-25
基金资助:
美国洛克菲勒兄弟基金;香港研究资助局资助

Energy production of plants in grass,Dicranopteris dichotoma and Rhodomyrtus tomentosa communities in Hong Kong

GUAN Dongsheng

Department of Environmental Science, Zhongshan University, Guangzhou 510275

Received:1999-09-28 Revised:1999-12-16 Online:2001-05-25

摘要/Abstract

摘要： 利用收获法和植物热值分析,在研究香港桃金娘灌木群落、芒萁群落和鸭嘴草+野古草+金茅草地植物的生物量和净生产量的基础上,探讨群落各组分的干重热值以及植物能量现存量、净固定量和现存净增量.结果表明,芒萁具有较高的热值,而禾草植物的干重热值较低.草地、芒萁、灌木群落植物的能量现存量分别为18683、38436和65632kJ·m^-2;能量净固定量为13286、20354和18784kJ·m^-2·a^-1;能量现存净增量为3437、9626和6695kJ·m^-2·a^-1.与地带性植被南亚热带常绿阔叶林相比,草地、芒萁、灌木群落的能量现存量、能量净固定量和能量现存净增量都较低.刈割实验也表明,随着人类干扰活动强度加大,植物能量净固定量明显下降.

Abstract: With harvest method and caloric value analysis,this paper studied the caloric values,standing energy,net fixed energy and net standing energy increment of three plant communities i.e.,grass,Dicranopteris dichotoma and Rhodomyrtus tomentosa,in Hong Kong.The results showed that the caloric value was higher in D.dichotoma community and lower in grass community.The standing energy of plants in grass,D.dichotoma and R.tomentosa community was 18638,38436 and 65632kJ穖^-2 ;net fixed energy was 13286,20354 and 18784 kJ穖^-2 穣r^-1 ;and net standing energy increment was 3437,9626 and 6695 kJ穖^-2 穣r^-1,respectively.Compared with southern subtropical evergreen broad leaved forest,the standing energy,net fixed energy and net standing energy increment were lower in grass,D.dichotoma and R.tomentosa communities,which resulted from deforestation and other human disturbance.This indicated that vegetation conversion due to human disturbance would reduce the utilization coefficient of solar energy.Net fixed energy was also found to be reduced significantly with increasing intensity of human disturbance.

中图分类号:

Q148

管东生. 香港山坡地草本、灌木群落的植物能量生产[J]. 应用生态学报, 2001, (3): 374-378.

GUAN Dongsheng . Energy production of plants in grass,Dicranopteris dichotoma and Rhodomyrtus tomentosa communities in Hong Kong[J]. Chinese Journal of Applied Ecology, 2001, (3): 374-378.

参考文献

[1] Chen R-J(陈荣均),Hill RD, Corlett RT. 1997. Energy and nutrient analysis of upland phytofuel species. Chin J Appl Ecol(应用生态学报),8(2):147～150(in Chinese) [2] Guan D-S. 1995. Study on phytomass and primary productivity of Dicranopteris linearis fernland in Hong Kong. Asia Geogra, 14(1):45～57 [3] Guan D-S(管东生).1996. A study of nutrients in femland of Hong Kong. Acta Phytoecol Sin (植物生态学报),20(3):235～244(in Chinese) [4] Guan D-S (管东生).1997. Phytonmass and net primary productivity of the grassland in Hong Kong. Chin J Ecol (生态学杂志),16(6):22～26 (in Chinese) [5] Guan D-S(管东生).1998. The distribution, seasonal dynamics and biological cycling of plant nutrients in Rhodomyrtus tomentosa shrubland of Hong Kong. Acta Ecol Sin(生态学报),18(4):386～391(in Chinese) [6] Guan D-S(管东生).1998. Plant biomass and net primary production in the Rhodomyrtus tomentosa shrubland of Hong Kong. Acta Phytoecol Sin(植物生态学报),22(4):356～363(in Chinese) [7] Guan D-S(管东生), Chen Y-J(陈玉娟).1996. A study of nitrogen,phosphorus and potassium of plants in the grassland of Hong Kong.Acta Scientiarum Naturalium Universitatis Sunyateni (Natural Sciences )(中山大学学报(自然科学版)), 35(Supp. 2):121～126(in Chinese) [8] Hou Y(侯庸), Wang B-S(王伯荪). 1997. Study on the Energy Ecology in the South Subtropical Evergreen Broad-leaved Forest in Heishiding Nature Reserve, Guangdong Province. Baoding:Hebei University Press. 28～90 (in Chinese) [9] Hou Y (侯庸), Wang B-S(王伯荪), Zhang H-D(张宏达) et al.1998. Study on the caloric values of five dominants for the tree layer in the south subtropical evergreen broad-leaved forest in Heishiding Nature Reserve, Guangdong Province. Acta Ecol Sin (生态学报), 18(3):263～268(in Chinese) [10] Jin X-H(金小华), Song Y-C(宋永昌),Zuo W-J(左文江).1990. Astudy on the biornass of secondary shrub thicket and shrub-grassland in Yi County of Anhui Province. Acta Ecol Sin (生态学报),10(4):328～332(in Chinese) [11] Peng S-L(彭少麟), Zhang Z-P(张祝平). 1994. Biomass, productivity and energy use efficiency of climax vegetation on Dinghushan, Guangdong, China. Sci China ( Series B ) (中国科学(B辑)),24(5):497～502(in Chinese) [12] Ren H(任海), Peng S-L(彭少麟), Liu H-X(刘鸿先) et al. 1999.The caloric value of main plant species at Dinghushan, Guangdong,China. Acta Phytoecol Sin (植物生态学报),23(2):148～154(in Chinese) [13] Wu Z-Y (吴征镒) ed. 1980. Vegetation of China. Beijing:Science Press. 430～504 (in Chinese) [14] Zu Y-G(祖元刚). 1990. Energy Ecology. Changchun:Jilin Science and Technology Press. 243～285(in Chinese)

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