三峡库区三种林下地被物储水特性

摘要/Abstract

摘要： 通过对三峡库区3种森林类型(松栎混交林、栓皮栎纯林、马尾松纯林)林下地被物调查及其持水试验,分别得到3种森林类型林下地被物最大储水量、吸水速率等水文特征参数.结果表明,栓皮栎纯林林下苔藓层储水量最大,为其风干重的303.1%,松栎混交林林下的为283.8%,马尾松纯林林下的为242.3%.松栎混交林林下枯落物最大储水量为其风干重的282.2%,栓皮栎纯林林下的为262.5%,马尾松纯林林下的为239.3%.经分析拟合,得到林下苔藓层、林下枯落物吸水速率与浸泡时间之间关系式为S=ktn.在同为中龄林条件下,3种森林类型林下苔藓层储水量均高于林下枯落物储水量,而林下地被物储水量随时间变化过程与森林类型无关.

关键词: 三峡库区, 地被物, 苔藓, 枯落物, 储水特性

Abstract: Through water holding experiments and the survey of ground covers under three forests (mixed forest of Quercus variabilis and Pinus massoniana, pure Quercus variabilis forest and pure Pinus massoniana forest) in Three Gorges Area, the hydrological characteristic parameters,e.g.,maximum water holding capacity and water absorption speed, were measured.The results showed that the maximum water holding capacity of moss under pure Quercus variabilis forest is the highest (303.1 % of its dry weight), that under mixed forest of Quercus variabilis and Pinus massoniana was 283.8 %,and that under pure Pinus massoniana forest was 242.3 %.The maximum water holding capacity of litter under mixed forest stand of Quercus variabils and Pinus massoniana was 282.2 % of its dry weight, that under pure Quercus variabilis forest is 262.5 %, that under pure Pinus massoniana forest was 239.3 %.The equation between water absorption speed of ground cover and its immersed period could be S=kt n.The results also showed that when the forests were all in mid-age, the water holding ability of the mosses was higher than that of the litters under the same forest.The ground cover's variation with its immersed period had no relation to forest types.

Key words: Three Gorges Area, Ground cover, Moss, Litter, Water storage characteristics

中图分类号:

S715.3

程金花, 张洪江, 史玉虎, 程云, 祁生林, 何凡, 潘磊. 三峡库区三种林下地被物储水特性[J]. 应用生态学报, 2003, (11): 1825-1828.

CHENG Jinhua, ZHANG Hongjiang, SHI Yuhu, CHENG Yun, QI Shenglin, HE Fan, PAN Lei. Water storage characteristics of ground covers under three forests in Three Gorges Area[J]. Chinese Journal of Applied Ecology, 2003, (11): 1825-1828.

参考文献

[1] Bai X-L(白学良), Zhao L-M(赵连梅).1998.A preliminary study on the species diversity, phytomass and ecological effect of bryophytes in Helan Mountain, China.Acta Sci Natur Univ Nei Mongol(内蒙古大学学报(自然科学版)), 29(1): 90～98(in Chinese)
[2] Beasley RS, Alfredo B.1985.Soil protection by natural vegetation on clearcut forest land in Arkansas.J Soil Water Conser,40(4):379～382
[3] Chen Q-B(陈奇伯), Xie M-S(解明曙), Zhang H-J(张洪江).1994.The study trend of litter's influence on surface runoff and soil erosion.J Beijing For Univ(北京林业大学学报), 16(supp.):88～97(in Chinese)
[4] Cheng J-H(程金花),Zhang H-J(张洪江),Zhang D-S(张东升).2002.The water capacity characteristic of the ground cover and soil under pure Abies fabri forest on the Gongga Mountain.J Beijing For Univ(北京林业大学学学报),24(3):45～49(in Chinese)
[5] Dabney SM.1998.Cover crop impacts on watershed hydrology.J Soil Water Conser,53(3):207～213
[6] Hao Z-Q(郝占庆), Wang L-H(王力华).1998.Water conservation capacities of soils with major forest types in mountainous regions of east Liaoning Province.Chin J Appl Ecol(应用生态学报),9(3): 237～241(in Chinese)
[7] Huang Z-L(黄忠良), Kong G-H(孔国辉), Yu Q-F(余清发).2000.Hydrological function and nutrient dynamics in lower subtropical monsoon evergreen broad-leaved forest.Acta Phytoecol Sin(植物生态学报),24(2):157～161(in Chinese)
[8] Liu S-R(刘世荣), Sun P-S(孙鹏森), Wang J-X(王金锡).2001.Hydrological function of forest vegetation in upper reaches of the Yangtze River.Natur Resour(自然资源学报),16(5):451～456(in Chinese)
[9] Liu X-D(刘向东), Wu Q-X(吴钦孝).1991.A study on hydrological and ecological function of litter under Pinus tabulae formis forest on Loess Plateau.Soil Water Conser(水土保持学报), 5(4): 87～91(in Chinese)
[10] Su N-H(苏宁虎).1989.The mathematic model of litter variation under different forest.Sci Silvae Sin(林业科学),25(2): 162～165(in Chinese)
[11] Wang Y-M(王佑民).2000.Summary of researches on water and soil conservative function of litter in forestland in China.Soil Water Conser(水土保持学报),14(4): 110～115(in Chinese)
[12] Wang Y-M(王佑民), Liu B-Z(刘秉正).1994.Ecological Characteristic of Shelter-Forest on Loess Plateau.Beijing: China Forestry Press.232～236(in Chinese)
[13] Wiersum KF.1983.Effect of various vegetation layers in an Acacia auriculiformis forest plantation on surface erosion in Javi, Indonesia.In:Soil Erosion and Conservation.New York:The International Coference.79～89
[14] Wu Q-X(吴钦孝), Liu X-D(刘向东).1993.The litter amount and its dynamic variation under Pinus tabulae formis forest in the loess hilly region of Shanbei.Sci Silvae Sin(林业科学),29(1): 63～66(in Chinese)
[15] Wu Q-X(吴钦孝), Zhao H-Y(赵鸿雁), Liu X-D(刘向东).1998.Evaluation on role of forest litter to water source conservation and soil and water conservation.Soil Eros Soil Water Conser(土壤侵蚀与水土保持学报),4(2): 23～28 (in Chinese)
[16] Zhang G-C(张光灿),Liu X(刘霞).1999.The study on hydrological benefit of litter and soil under several kinds of forest on Taishan Mountain.For Sci Technol(林业科技通讯),(2): 28～29(in Chinese)
[17] Zhang H-J(张洪江),Cheng Y(程云),Shi Y-H(史玉虎).2001.Property of pipeflow production on Granite slope in Three- Gorge of Yangtze River.Soil Water Conser(水土保持学报),15(1): 5～8(in Chinese)
[18] Zhang Y-M(张元明), Guo S-L(郭水良), Cao T(曹同).2001.On the methods of quantitative analysis for ecological research of bryophyte.Arid Zone Res(干旱区研究),18(1): 72～76(in Chinese)
[19] Zhao H-Y(赵鸿雁), Wu Q-X(吴钦孝).2001.A study on interception processes of artificial Chinese pine forest litter on the Loess Plateau.Natur Resour(自然资源学报),16(4): 45～52(in Chinese)
[20] Zhu L-H(朱丽晖), Li D(李冬).2001.The hydrological and ecological function of litter under natural secondary forest in Liaodong mountainous areas.Liaoning For Sci Technol(辽宁林业科技), (1): 77～82(in Chinese)