干旱区生态环境知识资源中心(Arid): 黑河中游金塔地区生态环境变化遥感监测

Arid

	黑河中游金塔地区生态环境变化遥感监测
其他题名	Monitoring the Ecology and Environment in the Middle Reaches of the Heihe River Using Remote Sensing
	鲁安新 1; 陈贤章 2; 王建 2; 王丽红 3; 吴立宗 2
来源期刊	冰川冻土
ISSN	1000-0240
出版年	2002
卷号	24 期号:1 页码:73-78
中文摘要	利用1990年和2000年的TM遥感资料，在经过定标、几何校正和图像增强等图像处理的基础上对土地覆盖类型进行解译，从而实现黑河中游金塔地区的生态环境遥感动态监测，从监测结果计算出黑河中游金塔地区2000年的生态环境相对于1990年的生态环境变化如下：人工用地增加34.17%，农业用地增加19.47%，水体增加8%，湿地增加6.3%，未利用土地增加了1.73%。自然／半自然植被减少42.78%。并对这些生态环境变化的原因进行了初步探讨。
英文摘要	The Heihe River is the second large inland river by basin area in the arid areas of Northwest China, with a total area of 128 000 km~2. In the middle reaches of it, the desertification is severe because of the over-usage of irrigation water in the oasis agriculture areas, expending of farmland, over pasture and etc. Especially in the lower reaches of it, the ecology and environment are turning worse in recent years. A major monitoring area was selected in Jinta of the middle reaches of the Heihe River Basin and the Landsat TM data in summer of 1990 and 2000 was used for interpretation on computer screen, classification and setting up ecological and environmental investigation data-base (1:100 000) combined with DEM, land cover/land use, land type data and etc., according to the ecological and environmental classification system. The dynamic monitoring results in 1990 and 2000 show that the changing percentage in area of 6 ground objects are as follows: land use and agriculture land use increasing by 34.17% and 19.47%, respectively, wet land and water-body also increasing by 6.29% and 8.03%, respectively; unused land increasing by 1.73%, and the biggest change is decrease in natural/semi-natural vegetation area, 42.78%. Dynamic monitoring found that the area of natural/semi-natural vegetation in the middle reaches of the Heihe River largely reduced. On the one hand, it is resulted from the increasing of cultivated land within oases, and is also resulted from the desertification, on the other hand. So it is a dangerous signal of large area desertification, if the natural/semi-natural vegetation reduces continuously and dramatically. In the past years, both the number and the area of small reservoirs increased remarkably in the middle reaches, which met the increasing water requirement due to largely increasing cultivated area. This is the direct cause of the cutting off runoff and the ecology and environment going from bad to worse in the lower reaches. So unified allocation of water utilization and development of save-water agriculture are very important.
中文关键词	遥感 ; 地理信息系统 ; 黑河中游 ; 生态环境 ; 动态监测
英文关键词	remote sensing GIS middle reaches of the Heihe River ecological environment dynamic monitoring
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:959369
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/203023
作者单位	1.中国科学院寒区旱区环境与工程研究所, 兰州, 甘肃 730000, 中国; 2.中科院寒区旱区环境与工程所, 兰州, 甘肃 730000, 中国; 3.甘肃省遥感中心, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	鲁安新,陈贤章,王建,等. 黑河中游金塔地区生态环境变化遥感监测[J]. 中国科学院西北生态环境资源研究院,2002,24(1):73-78.
APA	鲁安新,陈贤章,王建,王丽红,&吴立宗.(2002).黑河中游金塔地区生态环境变化遥感监测.冰川冻土,24(1),73-78.
MLA	鲁安新,et al."黑河中游金塔地区生态环境变化遥感监测".冰川冻土 24.1(2002):73-78.