A comparative study on Amomum villosum cultivation under tropical wet seasonal rainforest and secondary forest at Xishuangbanna

Abstract

Abstract: In order to protect rainforests,change the present Amomum villosum cultivation model,and explore the possibility of cultivating A.villosum under secondary forest,a comparative study was made on the growth and fruit yield of A.villosum cultivated under tropical wet seasonal rainforest and secondary forest at Xishuangbanna.The results showed that A.villosum cultivation had a significant effect on rainforest biomass and net productivity,but no effect on secondary forest.Under both rainforest and secondary forest,the order of plant density and biomass,from big to small,was vigorous plant,senescent plant,seedling,and shoot.The sum of shoot and seedlings was 3.95 and 1.66 times of senescent plant under rainforest and secondary forest,respectively,which meant that A.villosum could maintain population stability.Under rainforest,many of A.villosum seedlings were poorly growing old ones,and most of them could not grow and develop normally.The density and biomass of vigorous plant were not significantly different under rainforest and secondary forest,but those of shoot,seedling and senescent plant were significantly higher under secondary forest than under rainforest,suggesting that A.villosum rejuvenescence was faster under secondary forest.A.villosum fruit yield was 78.068 kg穐m^-2 in secondary forest,slightly higher than that in rainforest.It was worthwhile to notice that A.villosum yield was very low,its stem biomass ratio was very high (above 0.6),and the fruit biomass ratio was extremely low (about 0.01),which showed that the yield-increasing potency of A.villosum was great through improving biomass partition between fruit and stem.The biomass and canopy coverage of secondary forest was lower than those of rainforest,but the soil water content of secondary forest was similar to that of rainforest,which was favorable to the growth and development of A.villosum.The results presented above indicated that A.villosum could be cultivated in secondary forest.

Key words: Tropical wet seasonal rainforest, Secondary forest, Biomass, Biomass partition, Fruit yield, Amomum villosum cultivation

CLC Number:

S718.55

FENG Zhili, GAN Jianmin, ZHENG Zheng, FENG Yulong. A comparative study on Amomum villosum cultivation under tropical wet seasonal rainforest and secondary forest at Xishuangbanna[J]. Chinese Journal of Applied Ecology, 2004, (8): 1318-1322.

References

[1] Dang C-L(党承林),Wu Z-L(吴兆录),Zhang Q(张强).1997.Study on rayine rainforest biomass in Xishuangbanna.Chin J Appl Ecol(应用生态学报),8(supp.):123～128(in Chinese)
[2] de Kroon H,Hutchings MJ.1995.Morphological plasticity in clonal plants:The foraging concept reconsidered.J Ecol,83:143～152
[3] Feng S-X(冯世鑫).1996.Culltivation techniques of Amomum villosum sustainable high yield.Guangxi Agric Sci(广西农业科学),(2):69～70(in Chinese)
[4] Feng Y-L(冯玉龙),Feng Z-L(冯志立),Cao K-F(曹坤芳).2001.The protective mechanisms against photoinhibitory damage in Amomum villosum Lour.Acta Phytophysiol Sin(植物生理学报),27(6):483～488(in Chinese)
[5] Feng YL,Cao KF,Feng ZL.2002.Thermal dissipation,leaf rolling and inactivation of PSⅡ reaction centers in Amomum villosum in diurnal course.J Trop Ecol,18:865～876
[6] Feng Y-L(冯玉龙),Cao K-F(曹坤芳),Feng Z-L(冯志立),et al.2002b.Acclimation of lamina mass per unit area,photosynthetic characteristics and dark respiration to growth liht regimes in four tropical rainforest species.Acta Ecol Sin(生态学报),22(6):901～910(in Chinese)
[7] Feng Z-L(冯志立),Zheng Z(郑征),Zhang J-H(张建侯),et al.1998.Biomass and its allocation of a tropical wet seasonal rain forest in Xishuangbanna.Acta Phytoecol Sin(植物生态学报),22(6):481～488(in Chinese)
[8] Feng Z-L(冯志立),Feng Y-L(冯玉龙),Cao K-F(曹坤芳).2002.Effects of light intensity on photoinhibition of photosynthesis and thermal dissipation in Amomum villosum Lour.Acta Phytoecol Sin(植物生态学报),26(1):77～82(in Chinese)
[9] Gao L(高雷),Liu H-M(刘宏茂),Cui J-Y(崔景云),et al.2001.Analysis on the sustainability of Amomum villosum cultivation under the tropical rainforest in Xishuangbanna.Chin J Appl Ecol(应用生态学报),13(3):262～266(in Chinese)
[10] Gong D-C(龚德程).1986.Preliminary study of the influence of some habit factors on Amomum villosum fruit yield.Trop Plant Res(热带植物研究),28:60～64(in Chinese)
[11] Guo B-S(郭本森),Chen Y-W(陈耀武),Wang W-F(汪婉芳).1980.Preliminary studies on the flowering habit and fruit setting of Amomum villosum var.Xanthioides and A.villosum.Acta Bot Yunnan(云南植物研究),2(4):459～467(in Chinese)
[12] Han D-C(韩德聪),Huang Q-C(黄庆昌),Feng M-K(冯明开),et al.1984.The influence of different shading condition on the water regime and fruit yield in Amomum villosum Lour.Plantation.Acta Sungatseni Univ(Nat Sci)(中山大学学报(自然科学版)),(3):10～15(in Chinese)
[13] He Z-X(何振兴).1991.Investigation on Amomum villosum high yield habit.China J Chin Material Medica(中国中药杂志),16(7):405～406(in Chinese)
[14] Li B-H(李丙怀).1989.The ecollogical environment and cultivation technology of Amomum villosum.Sci Tech Trop Crops(热带作物科技),(5):42～45(in Chinese)
[15] Lu S-D(陆善旦).1995.Several important measure of high yield of Amomum villosum.China J Chin Material Medica(中国中药杂志),20(6):335～337(in Chinese)
[16] Ma Z-A(马治安),Zhang R-L(张仁礼),Li X-L(李学兰),et al.1994.Test on effect of trace element fertilizer on Fructus amomi.J Yunnan College Tradi Chin Medi(云南中医学院学报),17(1):13～16(in Chinese)
[17] Poorter L.1999.Growth responses of 15 rain-foresttree species to a light gradient:The relativeimportance of morphological and physiological traits.Func Ecol,13:369～410
[18] Su W-H(苏文华),Wang B-R(王宝荣),Yan H-Z(闫海中).1997.Influence of planting Amomum on tropical ravine rainforest commnnity.Chin J Appl Ecol(应用生态学报),8(supp.):71～74(in Chinese)
[19] Wang B-R(王宝荣),Su W-H(苏文华),Yan H-Z(闫海中).1997.Impact of planting Amomum on key protected plants in Mengyang Nature Reserve of Xishuangbanna and its countermeasures.Chin J Appl Ecol(应用生态学报),8(supp.):75～81(in Chinese)
[20] Yang C-J(杨曾奖),Zheng H-S(郑海水),Yin G-T(尹光天),et al.1995.Influence of rubber plantation intercropping with Amomum villosum or coffee on soil fertility.For Res(林业科学研究),8(4):466～470(in Chinese)
[21] Zheng Z(郑征),Feng Z-L(冯志立),Cao M(曹敏),et al.2000.Biomass and net primary production of primary tropical wet seasonal rainforest in Xishuangbanna.Acta Phytoecol Sin(植物生态学报),24(2):197～203(in Chinese)
[22] Zheng Z(郑征),Feng Z-L(冯志立),Liu H-M(刘宏茂),et al.2001.Influence of planting Amomum villosum in tropical wet seasonal rainforest on biomass of the rainforest in Xishuangbanna.J Moun Sci(山地学报),19(3):237～242(in Chinese)
[23] Zheng Z(郑征),Feng Z-L(冯志立),Gan J-M(甘建民).2003.Impact of disturbance of planting Amomum villosum in tropical seasonal rainforest on forest net primary productivity in Xishuargbanna.Acta Phytoecol Sin(植物生态学报),24(2):197～203(in Chinese)
[24] Zhou Z-Z(周再知),Zheng H-S(郑海水),Yang Z-J(杨曾奖).et al.1997.Research on biological cycle of nutrient elements in plantation of rubber intercropped with Amomum longiligulare.For Res (林业科学研究),10(5):464～471(in Chinese)
[25] Zhou S-Q(邹寿青).1991.Cultivation of Amomum villosum in tropical forests.Chin J Ecol(生态学杂志),10(1):37～39(in Chinese)