祁连山青海云杉林动态监测样地群落特征
收稿日期: 2012-09-27
修回日期: 2012-10-11
网络出版日期: 2013-01-20
Community Structure of a Dynamical Plot of Picea crassifolia Forest in Qilian Mountains, China
Received date: 2012-09-27
Revised date: 2012-10-11
Online published: 2013-01-20
依据中国森林生态系统动态监测样地设置方法，参照国际森林生态学大样地建设技术规范，于2010年和2011年在祁连山自然保护区青海云杉（Picea crassifolia kom.）林内建立了10.2 hm2动态监测样地，定位调查了样地内19 927株DBH≥1 cm活立木木本植物，完成了第一次群落特征调查和分析。调查结果表明：①青海云杉群落成层现象明显，可划分为乔木层、灌木层、草本层和苔藓层4个层次。乔木层是群落的最主要层，整体而言其垂直高度结构复杂性要大于灌木层和草本层，苔藓层较为发达。②青海云杉径级结构呈明显的倒“J”形，个体集中在径级1~5 cm至21~25 cm，其占到总个体数目的91.42%，青海云杉更新良好。③青海云杉DBH≥1 cm对应的树高结构呈“单峰”形，高度主要集中在小于6 m，占到总个体数目的60.00%，高度偏小，小树较多，中树占有一定的比例，大树较少。同时，树高和胸径二者之间显著符合二次函数关系（p＜0.05），反映了青海云杉群落生物学特征。④从空间分布格局来看，青海云杉表现出明显的聚集性分布格局。对不同年龄段青海云杉小树、中树和大树点格局分析表明，随着龄级的增大，种群的聚集程度减小，即由聚集分布变为随机分布，表现出明显的扩散趋势。青海云杉个体分布没有明显的空间异质性，而且2 534株大树随机分布在该样地，表明该群落未受大范围的人为干扰。
李效雄1 , 刘贤德1 , 2 , 赵维俊2 . 祁连山青海云杉林动态监测样地群落特征[J]. 中国沙漠, 2013 , 33(1) : 94 -100 . DOI: 10.7522/j.issn.1000-694X.2013.00013
According to Chinese forest ecosystem dynamic monitoring plot setting method and international forest ecology large plot construction technical standards, a 10.2 hm2 Picea crassifolia forest dynamic monitoring plot was established in the Qilian Mountains Nature Reserve in 2010 and 2011. The 19 927 woody plants with DBH (diameter at breast height) greater than 1 cm at the plot were surveyed based on positioning survey method, and the community characteristic was analyzed. (1) The layer structure difference is obvious for the P. crassifolia community, and it can be divided into tree layer, shrub layer, herb layer and bryophyta layer. The tree layer is the main layer of the community, and its vertical structure is more complex than the shrub layer and herb layer, and the bryophyta layer is also well developed. (2) The diameter structure of the P. crassifolia community is obviously an "inverted-J" form, the DBH of the individuals is concentrated in 1-5 cm and 21-25 cm, which account for 91.42% of the total individuals, so regeneration of the P. crassifolia population is good. (3) The height structure of the P. crassifolia individuals with DBH greater than 1 cm is single-peak form, and the height of the main individuals is less than 6 m, which account for more than 60.00% of the total individuals. So the height of the P. crassifolia individuals is relatively low, and young trees are much, mid trees hold a certain proportion, and big trees are little. There is a significantly quadratic function relation between the tree height and the DBH of the P. crassifolia (P<0.05). (4) The spatial distribution of the P. crassifolia individuals displays obviously a clustering distribution pattern. The point pattern analysis of small trees, mid trees and big trees of the P. crassifolia community shows that the clump intensity of the P. crassifolia population reduces with the increasing of the population age, and the congregation distribution turns into random distribution, which displays obviously a diffusion trend. There is no obvious spatial heterogeneity for spatial distribution of the P. crassifolia individuals, and 2 534 big trees of the P. crassifolia community are randomly distributed in the large plot, showing no significant human interference.
[1]国家林业局.LY/T1952-2011森林生态系统长期定位观测方法[S].南京:凤凰出版社,2011.
[2]Condit R.Research in large, long-term tropical forest plot[J].Trends in Ecology & Evolution,1995,10(1):18-22.
[3]http://www.ctfs.si.edu[EB/OL].2011.
[4]McShea W,Davies S J,Bhumpakphan N.The Ecology and Conservation of Seasonally Dry Forests in Asia[M].Smithsonian Institution Scholarly Press,2011.
[5]陈彬,米湘成,方腾,等.浙江古田山森林——树种及其分布格局[M].北京:中国林业出版社,2009.
[6]Cao M,Zhu H,Wang H,et al.Xishuangbanna Tropical Seasonal Rainforest Dynamics Plot:Tree Distribution Maps, Diameter Tables and Species Documentation[M]. Kunming:Yunnan Science and Technology Press,2008.
[7]Su S H,Ch C Y,Lu C L,et al.Fushan subtropical forest dynamics plot: Tree species characteristics and distribution patterns[M].Taipei,China:Taiwan Forestry Research Institute,2007.
[8]Adachi M,Ishida A,Bunyavejchewin S,et al.Spatial and temporal variation in soil respiration in a seasonally dry tropical forest, Thailand[J].Journal of Tropical Ecology,2009,25(5):531-539.
[9]Bastien-Henri S,Park A,Ashton M,et al.Biomass distribution among tropical tree species grown under differing regional climates[J].Forest Ecology and Management,2010,260(3):403-410.
[10]http://www.cfbiodiv.org/[EB/OL].2011.
[11]沈静,刘永红,康建国,等.祁连山气候分布特征研究[J/OL]. 中国科技论文在线,2007.
[12]车宗玺,刘贤德,李秉新,等.祁连山自然保护区不同高度带气候差异性分析[J].中国沙漠,2010,30(4):940-944.
[13]杨国靖,肖笃宁,周立华.祁连山区森林景观格局对水文生态效应的影响[J].水科学进展,2004,15(4):489-494.
[14]Condit R,Peter S,Shton S,et al.Spatial patterns in the distribution of tropical tree species[J].Science, 2000,288:1414-1418.
[15]http://eese.cn/Article/Biodiversity/Species/200512/6557.html[M/OL].2005.
[16]谢小魁,苏东凯,刘正纲,等.长白山原始阔叶红松林径级结构模拟[J].生态学杂志,2010,29(8):1477-1481.
[17]梁士楚,王伯荪.红树植物木榄种群高度结构的分形特征[J].植物生态学报,2002,26(4):408-412.
[18]蒋雪琴,刘艳红,赵本元,等.湖北神农架地区巴山冷杉(Abies fargesii)种群结构特征与空间分布格局[J].生态学报,2009,29(5):2211-2218.
[19]张雷,王晓江,胡尔查,等.科尔沁沙地蒙古黄榆种群结构与空间分布格局[J].中国沙漠,2011,31(1):115-119.
[20]刘建泉,丁国民,郝虎,等.青海云杉群落特征和动态的研究[J].西北林学院学报,2008,23(1):14-17.
[21]李海东,沈渭寿,佘光辉,等.西藏砂生槐种群结构与点格局分析[J].中国沙漠,2011,31(6):1443-1447.
[22]刘建泉.祁连山保护区青海云杉种群分布格局的研究[J].西北林学院学报,2004,19(2):152-155.
[23]赵丽琼,黄华国,梁大双,等.甘肃大野口青海云杉种群的空间分布格局[J].北京林业大学学报,2010,32(4):59-64.
[24]于军,王海珍,陈加利,等.塔里木河流域荒漠河岸林胡杨群落的空间格局研究[J].中国沙漠,2011,31(4):913-918.
[25]吕朝燕,张希明,刘国军,等.准噶尔盆地西北缘梭梭种群结构和空间格局特征[J].中国沙漠,2012,32(2):380-387.
[26]Matthesius A,Chapman H,Kelly D.Testing for Janzen-Connell effects in a west African montane forest[J].Biotropica,2011,43(1):77-83.
[27]祝燕,赵谷风,张俪文,等.古田山中亚热带常绿阔叶林动态监测样地——群落组成与结构[J].植物生态学报,2008,32(2):262-273.
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