地震干扰后恢复群落的数量分类与排序
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摘要
根据对四川王朗自然保护区地震干扰后恢复群落的野外调查数据,运用二元指示种分析(TWINSPAN)和除趋势对应分析(DCA)对该地区恢复群落进行了数量分类与排序。结果显示,可将所调查的植物群落划分为3种群落类型:重度干扰群落(群落E)、中度干扰群落(群落T)和轻度干扰群落(群落F)。排序结果也得到了相同的结论,并显示3种群落分布与一定的环境因子密切相关,群落E与岩石裸露度呈正相关,而与土壤厚度、土壤水分、苔藓盖度及盖度等环境因子呈负相关,群落F则与岩石裸露度呈负相关,而与土壤厚度、土壤水分、苔藓盖度及盖度等环境因子呈正相关。
The plots were classified into three communities by the methods of TWINSPAN and DCA,they are the community recovered from intensive earthquake disturbance(Community E),intermediate earthquake disturbance(Community T),and slightly disturbed forest community(Community F).The first axis of DCA indicated clearly the tendency from intensive to slight disturbance caused by earthquake.The results of ordination by DCA also showed the close relationship between plant communities and environmental factors.The community E was positively related to the coverage of exposed rock surface,and negatively related to the moss cover,while the community F was negatively related to the coverage of exposed rock surface,and positively related to the moss cover.
The plots were classified into three communities by the methods of TWINSPAN and DCA,they are the community recovered from intensive earthquake disturbance(Community E),intermediate earthquake disturbance(Community T),and slightly disturbed forest community(Community F).The first axis of DCA indicated clearly the tendency from intensive to slight disturbance caused by earthquake.The results of ordination by DCA also showed the close relationship between plant communities and environmental factors.The community E was positively related to the coverage of exposed rock surface,and negatively related to the moss cover,while the community F was negatively related to the coverage of exposed rock surface,and positively related to the moss cover.
引文
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[3]GREIG-SMITH B P,AUSTIN M P,WHITMORE T C.Theapplication of quantitative methods to vegetation surveyⅢ.Are-examination of rain forest data from Brunei[J].Journal ofEcology,1972,60(2):305-324.
[4]张金屯,邱杨,柴宝峰,等.吕梁山严村低中山区植物群落演替分析[J].植物资源与环境学报,2000,9(2):34-39.ZHANG J T,QIU Y,CHAI B F,et al.Succession analysisof plant communities in Yancun low-middle hills of LüliangMountains[J].Journal of Plant Resources and Environment,2000,9(2):34-39.(in Chinese)
[5]闫明,毕润成.山西霍山植被分类及不同演替阶段群落物种多样性的比较分析[J].植物资源与环境学报,2009,18(3):56-62.YAN M,BI R C.Vegetation classification and comparative a-nalysis of species diversity of community at different successionstages in Huoshan Mountain of Shanxi Province[J].Journal ofPlant Resources and Environment,2009,18(3):56-62.(inChinese)
[6]GUARIGUATA M R,OSTERTAG R.Neotropical secondaryforest succession:changes in structural and functional charac-teristics[J].Forest Ecology and Management,2001,148(1):185-206.
[7]SLETVOLD N,RYDGREN K.Population dynamics in Digi-talis purpurea:the interaction of disturbance and seed bankdynamics[J].Journal of Ecology,2007,95(6):1346-1359.
[8]CONNELL J H.Diversity in tropical rain forest and coral reefs[J].Science,1978,199(4335):1302-1310.
[9]SHIELS A B,WALKER L R.Bird perches increase forestseeds on Puerto Rican landslides[J].Restoration Ecology,2003,11(4):457-465.
[10]PERES C A,JOS B,LAURANCE W F.Detecting anthro-pogenic disturbance in tropical forests[J].Trends in Ecologyand Evolution,2006,21(5):227-229.
[11]王梦君,刘万德,张玉波,等.地震干扰后恢复群落物种组成与生物量分配特征[J].西北林学院学报,2010,25(3):1-6.WANG M J,LIU W D,ZHANG Y B,et al.Species compo-sition and biomass allocation in restoration community afterearthquake in Wanglang Nature Reserve[J].Journal ofNorthwest Forestry University,2010,25(3):1-6.(in Chi-nese)
[12]RICE B,WESTOBY M.Species richness in vascular vegeta-tion of the West Head,New South Wales[J].Austral Ecolo-gy,1983,8(2):163-168.
[13]邓磊,张文辉,何景峰,等.不同采伐强度对辽东栎幼苗更新的影响[J].西北林学院学报,2011,26(2):160-166.DENG L,ZHANG W H,HE J F,et al.Effects of differentcutting intensities on seedling regeneration of Quercus liao-tungensis[J].Journal of Northwest Forestry University,2011,26(2):160-166.(in Chinese)
[14]SILVERTOWN J,DODD M E,GOWING D J G,et al.Hydrologically defined niches reveal a basis for species rich-ness in plant communities[J].Nature,1999,400(6739):61-63.
[15]徐振锋,胡庭兴,张远彬.川西亚高山几种天然林下苔藓层的持水特性[J].长江流域资源与环境,2008,17(1):112-116.XU Z F,HU T X,ZHANG Y L.Water holding characteris-tics of bryophyte layer under natural forest in sub-alpine re-gion of western Sichuan[J].Resources and Environment inthe Yangze Basin,2008,17(1):112-116.(in Chinese)
[16]叶吉,郝占庆,姜萍.长白山暗针叶林苔藓枯落物层的降雨截流过程[J].生态学报,2004,24(12):2859-2862.YE J,HAO Z Q,JIANG P.Studies on rainfall holdingprocess of the bryophyte and litter layer in coniferous forestof Changbai Mountain[J].Acta Ecologica Sinica,2004,24(12):2859-2862.(in Chinese)
[17]WALKER L R,VELAZQUEZ E,SHIELS A B.Applyinglessons from ecological succession to the restoration of land-slides[J].Plant Soil,2009,324(1-2):157-168.
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