干旱区生态环境知识资源中心(Arid): 民勤荒漠绿洲过渡带灌丛沙堆形态特征及分布格局

Arid

	民勤荒漠绿洲过渡带灌丛沙堆形态特征及分布格局
其他题名	Morphological Characteristics and Distribution Patterns of Nebkhas in Desert-oasis Ecotone
	张进虎; 唐进年; 李得禄; 魏林源; 满多清; 柴成武
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2015
卷号	35 期号:5 页码:1141-1149
中文摘要	以民勤荒漠绿洲过渡带为研究区,通过样方调查,研究了荒漠区、荒漠绿洲过渡区到绿洲内不同梯度生境中灌丛沙堆的形态特征及分布格局。结果表明:(1)3种生境中灌丛沙堆的形态呈极显著性差异(p<0.01);绿洲区灌丛沙堆的平均高度、底面积、纵横断面积和体积均最大,其次为荒漠区,过渡区最小。(2)过渡带3种生境灌丛沙堆的长、短轴之间均呈二次函数关系,但相关程度不同,过渡区相关性最高,相关系数达0.78;绿洲区相关性最低,相关系数为0.57;高度与底面积、体积与高度间均呈幂函数关系,相关系数均在0.59以上;(3)过渡区灌丛沙堆分布密度较大,呈聚集分布,而荒漠区及绿洲区沙堆分布密度较小,均呈随机分布。
英文摘要	The desert-oasis ecotone in Minqin,Gansu,China was selected as the studied area,and the morphological characteristics and distribution patterns of nebklas in three habitats,just desert,desert-oasis ecotone and oasis were researched by the quadrat survey method.The results are as follows.(1)There were significant differences of the nebklas’morphological characteristics among the different habitats(p<0.01).The average height,bottom area,vertical and cross section and volume of the nebkhas were all the largest in the oasis,followed by the desert,and the last was the desert-oasis ecotone.(2)There was significant quadratic function relationship between the long axis and short axis of nebklas,but with different degree of correlation,the highest was in the desert-oasis ecotone with correlation coefficient value 0.78,while the lowest was in the oasis with correlation coefficient value 0.57.Typical power function relationships were existed between the height and bottom area,and also between the volume and height of the nebklas,the correlation coefficient values were all more than 0.59.(3)The nebklas in the desert-oasis ecotone was presented clustered distribution with much higher distribution density,while in the oasis and the desert area nebklas showed random distribution with lower distribution density.
中文关键词	民勤 ; 荒漠绿洲过渡带 ; 灌丛沙堆 ; 形态特征
英文关键词	Minqin desert-oasis ecotone nebkhas morphological feature
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:5527260
来源机构	甘肃省治沙研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/233773
作者单位	甘肃省治沙研究所, 甘肃省荒漠化与风沙灾害防治国家重点实验室培育基地, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	张进虎,唐进年,李得禄,等. 民勤荒漠绿洲过渡带灌丛沙堆形态特征及分布格局[J]. 甘肃省治沙研究所,2015,35(5):1141-1149.
APA	张进虎,唐进年,李得禄,魏林源,满多清,&柴成武.(2015).民勤荒漠绿洲过渡带灌丛沙堆形态特征及分布格局.中国沙漠,35(5),1141-1149.
MLA	张进虎,et al."民勤荒漠绿洲过渡带灌丛沙堆形态特征及分布格局".中国沙漠 35.5(2015):1141-1149.