干旱区生态环境知识资源中心(Arid): 敦煌西湖荒漠-湿地生态系统植被与土壤水分空间异质性研究

Arid

	敦煌西湖荒漠-湿地生态系统植被与土壤水分空间异质性研究
其他题名	Spatial heterogeneity of vegetation and soil moisture in the desert-wetland ecosystem in Dunhuang Xihu, Gansu Province, China
	陈文业 1; 赵明 1; 张继强 1; 李广宇 1; 吴三雄 1; 袁海峰 2; 窦英杰 2; 吴婷 2; 陈旭 2; 罗文莉 1; 朱丽 1; 邴丹珲 1; 冯颖 1; 孙飞达 3; 谈嫣蓉 1
来源期刊	冰川冻土
ISSN	1000-0240
出版年	2015
卷号	37 期号:6 页码:1670-1679
中文摘要	基于敦煌西湖荒漠湿地生态系统植被与土壤特性调查, 采用地统计学方法, 研究了敦煌西湖荒漠湿地生态系统的土壤水分和植被的空间变异特征. 结果表明: 研究区植被盖度、高度和多度的平均值分别为36.14%、 80.42 cm和0.66株·m~2, 变异系数依次为117.52%、 124.63%和36.50%, 植被盖度和高度均为高度变异, 植被多度为中等变异; 0~200 cm土层各层土壤湿度平均值为14.873%, 介于6.681%~ 23.004%, 变异系数介于39.28%~88.65%. 200 cm土层水分贮量平均值为163.598 mm, 变异系数为36.51%, 0~200 cm土层各层土壤湿度和2 m土层水分贮量均为中等变异. 植被特征与土壤特性各要素的基台值(C_0+C)介于0.112~0.549, 结构比介于76.6%~97.6%, 各变量具有较强的空间自相关性. 研究区植被型组由盐池湾向南呈沼泽盐沼草甸阔叶林荒漠演变过程, 植被特征与土壤特性在样带空间分布上具有明显的规律性, 且存在较强的空间自相关性和格局.
英文摘要	Based on the investigation of vegetation and soil properties, the spatial heterogeneity of vegetation and soil moisture in Dunhuang Xihu desert-wetland ecosystem were studied with geostatistics. The results showed that the vegetation coverage, height and density were 36.14%, 80.42 cm and 0.66 plant·m~(-2); the variation coefficient of vegetation coverage and height were 117.52%, 124.63%, characterized with highly divergent, but the variation coefficient of vegetation density was 36.50%, characterized with medium divergent; the soil moisture from 0 to 200 cm depth ranged from 6.681% to 23.004%, and the variation coefficient was between 39.28% and 88.65%; the moisture stored in the 200 cm soil was 163.598 mm on average, with a variation coefficient of 36.51%. Thus, the soil moisture from 0 to 200 cm depth and the moisture stored in the soil of 200 cm both were characterized with medium divergent; sill (C_0+C) of vegetation characteristics and soil properties varied from 0.112 to 0.549, with texture ratio between 0.766% and 0.976% and high spatial autocorrelation of all variables; the succession of vegetation type group showed a regularity as swampsaline marshmeadowbroad-leaved forestdesert southwards from Yanchiwan, also the vegetation characteristics and soil properties presented obvious spatial regularity and high spatial autocorrelation.
中文关键词	敦煌西湖 ; 湿地生态系统 ; 土壤水分 ; 植被 ; 空间异质性
英文关键词	Dunhuang Xihu wetland ecosystem soil moisture vegetation spatial heterogeneity
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:5676795
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232378
作者单位	1.甘肃省林业科学研究院, 甘肃敦煌西湖湿地生态系统国家定位观测研究站, 兰州, 甘肃 730020, 中国; 2.甘肃敦煌西湖国家级自然保护区管理局, 敦煌, 甘肃 736200, 中国; 3.四川农业大学草业科学系, 雅安, 四川 625014, 中国
推荐引用方式 GB/T 7714	陈文业,赵明,张继强,等. 敦煌西湖荒漠-湿地生态系统植被与土壤水分空间异质性研究[J],2015,37(6):1670-1679.
APA	陈文业.,赵明.,张继强.,李广宇.,吴三雄.,...&谈嫣蓉.(2015).敦煌西湖荒漠-湿地生态系统植被与土壤水分空间异质性研究.冰川冻土,37(6),1670-1679.
MLA	陈文业,et al."敦煌西湖荒漠-湿地生态系统植被与土壤水分空间异质性研究".冰川冻土 37.6(2015):1670-1679.