干旱区生态环境知识资源中心(Arid): 三江源地区各类生态系统土壤的性状及其形成能力

Arid

	三江源地区各类生态系统土壤的性状及其形成能力
其他题名	Soil property and its formation of ecosystems in three river sources,Qinghai
	邵景安; 邵全琴; 刘纪远
ISSN	1000-0585
出版年	2009
卷号	28 期号:3 页码:613-624
中文摘要	土壤形成是MA框架下生态系统支持功能的基本内容.运用GIS空间分析功能,测算了青海三江源区生态系统支持功能,结果表明:①源区土壤形成和生态系统支持功能呈从东南向西北降低的趋势;②源区各生态系统土壤形成的支持功能具有湿地生态系统＞森林和草地生态系统＞农田生态系统＞荒漠和裸土地及裸岩石砾地的特点;③源区各生态系统支持功能具有从湿地生态系统、森林生态系统、草地生态系统、农田生态系统到荒漠和裸土地及裸岩石砾地依次降低的趋势;④草地生态系统退化诱导草地土壤形成功能的退化,进而驱使草地生态系统支持功能的降低;⑤强度人为干扰造成生态系统土壤各种性状向退化方向发展,土壤形成及生态系统支持功能下降.结果有助于丰富人们从土壤形成视角,对生态系统支持功能的理解和认识.
英文摘要	Soil formation plays an important role in ecosystem sustainable functions under MA framework. This paper, by GIS-based spatial analysis, measured the sustainable functions of ecosystems in the three river sources, through soil preservation indicators. These results suggested that, in the three river sources, the features of different ecosys-tems determine the basic patterns of soil formation and sustainable functions of ecosys-tems. These patterns present lower tendency, along the orientation from southeast to northwest. The functions of soil preservation are significantly different among different e-cosystems, in the order of wetland>forest and grassland>farmland>desert and bare land and bare rock. The sustainable functions of ecosystems decline in the order of wetland,forest, grassland, farmland, desert and bare land and bare rock. The patterns of grassland degradation are consistent with the distributions of soil preservation. Grassland degrada-tion results in the reduction of ecosystem sustainable functions. Strong human disturb-ances cause the degradations of soil properties of each type, and induced the decline of the functions of soil formation and sustainable ecosystem. Our findings suggest that it may be useful to understand the sustainable functions of ecosystems from the aspect of soil forma-tion.
中文关键词	生态系统 ; 支持功能 ; 土壤形成 ; MA框架 ; 三江源区
英文关键词	ecosystem sustainable functions soil formation MA formwork three river sources
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:3750934
来源机构	中国科学院地理科学与资源研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223382
作者单位	中国科学院地理科学与资源研究所, 北京 100101, 中国
推荐引用方式 GB/T 7714	邵景安,邵全琴,刘纪远. 三江源地区各类生态系统土壤的性状及其形成能力[J]. 中国科学院地理科学与资源研究所,2009,28(3):613-624.
APA	邵景安,邵全琴,&刘纪远.(2009).三江源地区各类生态系统土壤的性状及其形成能力.,28(3),613-624.
MLA	邵景安,et al."三江源地区各类生态系统土壤的性状及其形成能力".28.3(2009):613-624.