干旱区生态环境知识资源中心(Arid): 基于LUCC的干旱区人为干扰与生态安全分析以天山北坡经济带绿洲为例

Arid

	基于LUCC的干旱区人为干扰与生态安全分析以天山北坡经济带绿洲为例
其他题名	LUCC-Based Human Disturbance and Ecological Security in Arid Area: A Case Study in the Economic Zone on Northern Slope of the Tianshan Mountains
	宋文杰; 张清; 刘莎莎; 杨江宁
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2018
卷号	35 期号:1 页码:235-242
中文摘要	基于19652015年5期LUCC数据,通过人为干扰度和景观脆弱度构建生态安全度,开展长时间序列、大尺度、高精度的天山北坡经济带绿洲人为干扰和生态安全变化研究。结果表明: ①近50 a,人类对天山北坡经济带绿洲的干扰程度逐年增加,现已达到中度偏强的干扰程度,乌鲁木齐、石河子、奎屯、米泉和昌吉的干扰度高于其他地区。②近50 a,天山北坡经济带绿洲生态安全度呈先增加后减少的趋势,较不安全和临界等级为主要的生态安全等级,该等级区域逐年增多且向西北方向移动,城市建设、绿洲扩张和过度开垦是生态安全降低的主要因素。③结构因素、人类因素、政策因素是天山北坡生态安全变化的驱动因素。从整体来看,天山北坡经济带的生态环境仍存在较大隐患,需要在今后的发展中合理利用土地资源,保证该区域的可持续发展。
英文摘要	Ecological security is closely related to the peoples survival and development. In the context of global warming, the ecological and environmental problems have become increasingly prominent with the frequent human activities. Oases in arid areas are the regions with vulnerable environment and economy. Study on ecological security of oases in arid areas is of great significance to the economic stability and development of oases. Based on the land use /cover data in 1965,1 980, 1995, 2005 and 2015, the study analyzed the temporal and spatial changes in human disturbance and ecological security of oases in the economic zone on northern slope of the Tianshan Mountains in recent 50 years by establishing the ecological security index through human disturbance index and landscape vulnerability index. The results showed that the human disturbance in the study area in recent 50 years was increased year by year and reached to a moderate-strong degree in 2015. The human disturbance degree in Urumqi,Shihezi,Kuytun, Miquan and Changji was higher than that in other regions. The ecological security in the economic zone on northern slope of the Tianshan Mountains tended an increase firstly and then a decrease in recent 50 years. The unsafe level and critical level were dominant in the economic zone on northern slope of the Tianshan Mountains,and the regions with these levels were increased and shifted northwestward. The ecological security level was low in Karamay,Shawan and Manas County. Urban construction,oasis expansion and excessive land reclamation were the main factors in reducing ecological security. Structure,human activities and policy were the driving factors of ecological security change in the study area. Structural and policy factors affected the large-scale pattern of ecological security, a nd human factors affected the small-scale one,On the whole, the ecological environment in the economic zone on northern slope of the Tianshan Mountains is currently still in a high hidden danger,and it is necessary to make reasonable use of land resources in the future development so as to ensure a sustainable development of the study area.
中文关键词	人为干扰 ; 生态安全 ; 天山北坡经济带 ; 绿洲 ; 干旱区
英文关键词	LUCC LUCC human disturbance ecological security economic zone on northern slope of the Tianshan Mountains oasis arid area
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:6157158
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/237635
作者单位	中国科学院遥感与数字地球研究所, 北京 100094, 中国
推荐引用方式 GB/T 7714	宋文杰,张清,刘莎莎,等. 基于LUCC的干旱区人为干扰与生态安全分析以天山北坡经济带绿洲为例[J],2018,35(1):235-242.
APA	宋文杰,张清,刘莎莎,&杨江宁.(2018).基于LUCC的干旱区人为干扰与生态安全分析以天山北坡经济带绿洲为例.干旱区研究,35(1),235-242.
MLA	宋文杰,et al."基于LUCC的干旱区人为干扰与生态安全分析以天山北坡经济带绿洲为例".干旱区研究 35.1(2018):235-242.