干旱区生态环境知识资源中心(Arid): 半干旱区露天煤矿复垦土地人工植被20102015年间群落动态

Arid

	半干旱区露天煤矿复垦土地人工植被20102015年间群落动态
其他题名	Community dynamics of artificial vegetation in a reclaimed spoil from a semi-arid opencast coal mine in 2010-2015
	赵冰清 1; 郭东罡 2; 白中科 3; 赵中秋 3
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2018
卷号	37 期号:6 页码:1636-1644
中文摘要	植被恢复是矿区进行生态修复的有效途径,但对于人工恢复植被生态过程的理解却非常有限.本研究基于2010和2015年对安太堡露天煤矿复垦土地1 hm~2刺槐( Robinia pseudoacacia) +榆树( Ulmus pumila) +臭椿( Ailanthus altissima)混交林动态监测样地的两次调查数据,从物种组成、数量特征、径级结构等方面分析了人工植被5年间群落的动态特征.结果表明:群落的物种组成变化不大,1个树种因死亡而消失,新增1个树种;刺槐的重要值大幅下降,而榆树的重要值增长较快,群落优势种由刺槐变为榆树;样地中树木胸径( DBH) ≥1 cm的独立个体数由2125株增至3531株,其中死亡768株,新增2174株;每年死亡率和增补率分别为8.97%和19.13%;死亡量最大的树种是刺槐,增补量最大的是榆树;群落总的胸高断面积由6.92 m~2·hm~(-2)增至8.63 m~2·hm~(-2),其中刺槐的损失量和新增量均最大;树木的胸径年平均生长速率随着径级的增加呈增加的趋势;群落整体的径级结构没有发生较大变化,小径级个体死亡量较大,大径级个体死亡量较小;不同树种死亡个体的径级分布基本类似于2010年该树种的径级分布; 3个主要树种的种群大小变化率都超过5%,均属于快速变动的种群,其中以刺槐的降幅最大( -10.36%) ,榆树的增幅最大( 39.39%) .
英文摘要	Vegetation restoration is an effective way to recover the ecological environment in mining area. However,our understanding of ecological processes in restoration is lacking. Two datasets in the year 2010 and 2015 from a 1-hm~2 permanently fixed monitoring plot ( a mixed forest of Robinia pseudoacacia,Ulmus pumila and Ailanthus altissima) in Antaibao opencast coal mine, Shanxi Province,China,were used to analyze the dynamics of tree species composition,density and size class structure. The results showed that one species disappeared while another one appeared during 2010 to 2015. Importance value ( IV) of R. pseudoacacia decreased significantly, whereas that of U. pumila substantially increased,indicating that the dominant species changed from R. pseudoacacia to U. pumila. The number of individuals with diameter at breast height ( DBH) ≥1 cm increased from 2125 to 3531,with 768 dying and 2174 recruiting. The average annual mortality and recruitment rates were 8.97% and 19.13%,respectively. R. pseudoacacia had the highest mortality,while U. pumila had the highest recruitment. The basal area of the trees increased from 6.92 m~2·hm~(-2) to 8.63 m~2·hm~(-2) . The changes of the basal area of R. pseudoacacia were the largest among all the species. The annual average growth rate of tree DBH increased with the increases of DBH size classes. The DBH size class structure of community did not vary significantly during 2010 to 2015. Individuals with small DBH had higher mortality compared with large ones. DBH size class distribution of dead trees in 2015 was similar to that of the living tree species in 2010. The population of the three dominant tree species increased or decreased with an annual rate of >5%,indicating fast individual turnovers for those species. Among which,R. pseudoacacia had the highest decline rate in population size ( - 10.36%) , whereas U. pumila had the highest increment rate ( 39.39%) .
中文关键词	植被恢复 ; 群落动态 ; 死亡 ; 增补 ; 径级结构
英文关键词	vegetation restoration community dynamics mortality recruitment size class structure
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:6255620
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238192
作者单位	1.中国地质大学(北京)土地科学技术学院, 北京 100083, 中国; 2.山西大学环境与资源学院, 太原, 山西 030006, 中国; 3.中国地质大学(北京)土地科学技术学院;;国土资源部土地整治重点实验室, ;;国土资源部土地整治重点实验室, ;;, 北京;;北京 100083;;100035, 中国
推荐引用方式 GB/T 7714	赵冰清,郭东罡,白中科,等. 半干旱区露天煤矿复垦土地人工植被20102015年间群落动态[J],2018,37(6):1636-1644.
APA	赵冰清,郭东罡,白中科,&赵中秋.(2018).半干旱区露天煤矿复垦土地人工植被20102015年间群落动态.生态学杂志,37(6),1636-1644.
MLA	赵冰清,et al."半干旱区露天煤矿复垦土地人工植被20102015年间群落动态".生态学杂志 37.6(2018):1636-1644.