干旱区生态环境知识资源中心(Arid): 岷江上游干旱河谷边界波动的定量判定及其演化特征

Arid

	岷江上游干旱河谷边界波动的定量判定及其演化特征
其他题名	Quantitative Determination of Boundary Fluctuation in Arid Valley of the Upper Min River and Its Evolution Feature
	丁明涛 1; 周鹏 2; 张永旺 1; 吕夏婷 1
来源期刊	山地学报
ISSN	1008-2786
出版年	2017
卷号	35 期号:2 页码:170-178
中文摘要	在山区人口迅速增加和社会经济高速发展的进程中,干旱河谷作为山区生态系统的重要组成部分之一,承载了严重的被干扰和过度利用。在RS与GIS技术的支持下,本研究选择岷江上游干旱河谷作为研究对象,应用马尔科夫预测法和土地利用动态变化空间分析测算模型,开展干旱河谷边界波动的定量判定及其演化特征研究。研究结果表明:岷江上游干旱河谷区面积与上边界在逐年增加,上边界平均每年沿垂直方向抬升约5 m,在未来较长时间内,干旱河谷面积的增长趋势将会越来越强;其中,1970至2010年干旱河谷转化速率(TRL_(70-2010))呈现不断上升趋势,分别为TRL_(70)=1.44%,TRL_(80) =0.95%,TRL_(90) =2.32%,TRL_(2000) =2.45%,TRL_(2010) =3.59%; 1990至2000年期间干旱河谷新增速率(IRL_(90-2000))最大,属于高速扩展期,在1970至1980年期间新增速率IRL_(70-80)最小;1990至2000年期间干旱河谷敏感性最高,其年变化速率(CCL_(90-2000))为13.01%,其次为CCL_(2000-2010)=6.51%,其余时期年均变化速率皆在4%左右。本研究结果可为我国西部灾害多发区聚落合理规划、灾害风险管理、人口合理分布与再调整提供重要的科学依据。
英文摘要	Summary: With rapid population growth and socio-economic development in mountainous regions of western China, arid valleys are acting as an important part in support of mountain ecosystems and suffering serious engineered interference and over-exploitation. With the help of RS and GIS technology, this research took arid valleys in the upper reaches of Min River as a case study. It applied the Markov prediction method and the model of dynamic change of land use space analysis calculation to perform a quantitatively investigation on the boundary fluctuation of arid valleys in the upper reaches of Min River and its evolutionary features. Results confirmed that: The area of arid valleys in the upper reaches of Min River and its upper border had been growing for years,On an annual average, the upper boundary kept uplifting about 5 m per year in the vertical direction,and the growth trend in the arid valley areas would be getting stronger in the long run; During 1970 to 2010,the expansion rate of arid valley (TRL_(70-2010)) presented a rising trend,with TRL_(70) = 1.44%,TRL_(80) =0.95%,TRL_(90) =2.32%,TRL_(2000) = 2.45%,TRL_(2010) = 3.59%. separately; And arid valleys had been highly developing from 1990 to 2000 with a unprecedented maximum rate (IRL_(90-2000)), which was regarded as high-speed expansion period,whereas for the period of 1970 to 1980,its rate IRL_(70-80) dropped to the minimum; As for the period of 1990 to 2000, arid valley had the highest" sensitivity",with a annual rate of change(CCL_(90-2000)) 13.01%,followed by CCL_(2000-2010) = 6.51 %,and in the remaining period,a average annual rate of change was about 4%. This research achievement can provide important scientific basis for rational site planning for settlements, disaster risk management, proper population distribution and readjustment in some areas of western China with a high susceptibility in geohazards.
中文关键词	干旱河谷 ; 边界波动 ; 演化特征 ; 风险管理 ; 岷江上游
英文关键词	arid valley boundary fluctuation evolution pattern risk management the upper reaches of Min River
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:5985607
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236386
作者单位	1.西南科技大学环境与资源学院, 绵阳, 四川 621010, 中国; 2.重庆市彭水苗族土家族自治县水务局, 重庆 409600, 中国
推荐引用方式 GB/T 7714	丁明涛,周鹏,张永旺,等. 岷江上游干旱河谷边界波动的定量判定及其演化特征[J],2017,35(2):170-178.
APA	丁明涛,周鹏,张永旺,&吕夏婷.(2017).岷江上游干旱河谷边界波动的定量判定及其演化特征.山地学报,35(2),170-178.
MLA	丁明涛,et al."岷江上游干旱河谷边界波动的定量判定及其演化特征".山地学报 35.2(2017):170-178.