干旱区生态环境知识资源中心(Arid): 陇东黄土高原气候变化及其对水资源的影响

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	陇东黄土高原气候变化及其对水资源的影响
其他题名	Climate change and their impact on water resources in the Loess Plateau of east Gansu
	赵红岩 1; 张旭东 2; 王有恒 2; 张强1 ; 马鹏里 2; 姚辉 1; 孙兰东 2; 瞿汶 2; 毛玉琴 3; 杨小利 4
来源期刊	干旱地区农业研究
ISSN	1000-7601
出版年	2011
卷号	29 期号:6 页码:262-268
中文摘要	选取甘肃陇东8个气象观测站的月平均气温、月降水量和月蒸发量及水文资料，分析陇东气候变化历史演变趋势及其对水资源的影响。结果指出：1971~2009年陇东年降水量总的变化呈减少趋势，平均每10a减少9.3mm，尤以近20a减少最为明显；年平均气温总的变化呈上升趋势，气温每10a升高0.41℃。年蒸发量总体呈增加趋势，平均每10a增加9.3mm。分析的结果还指出：年降水量500mm等值线和年蒸发量1550mm等值线南移，半干旱区面积增大。陇东整体暖干化导致董志塬地下水水位下降了30m；使水资源分布不均匀，地表水利用率低；每年水蚀表土0.2~1.0m~3，严重的达2cm以上。所以应正确评估陇东水资源的脆弱性和干旱灾害程度，提出科学的抗旱对策。
英文摘要	On the basis of the daily average temperature, monthly precipitation, monthly evaporation and the hydrological data from 8 weather stations in east Gansu, the trend of historical evolution of climate change and its impact on water resources were analyzed. The results showed that the annual precipitation in the area demonstrated a decreasing trend from 1971~2009, and the decreasing slope was 9.3 mm/10a, which was more severe in recent 20 years. The annual average temperature showed an increasing trend, and the increasing slope was 0.41/10a. The annual evaporation showed an increasing trend, and the increasing slope is 9.3 mm/10a. The contour with 500 mm annual precipitation and the contour with 1 550 mm annual evaporation both move towards south. The area of semi-arid increased obviously. The groundwater-level of Dongzhiyuan fell 30 meters and the water resources distributed unevenly, which were mainly caused by warm-dry climate tendency. The utilization rate of the source water was low. The soil of water erosion decreased by 0.2~ 1.0 m~3 every year or even up to 2 cm in some area. So in order to deal with the challenge of the climatic change, the vulnerability of water resources and the extent of the arid meteorological disaster should be evaluated correctly, and some scientific countermeasures for drought should be proposed.
中文关键词	气候变化 ; 水资源 ; 对策建议 ; 陇东
英文关键词	climatic change water resources countermeasure east Gansu
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:4395616
来源机构	中国气象局兰州干旱气象研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/226435
作者单位	1.中国气象局兰州干旱气象研究所, 甘肃省干旱气候变化与减灾重点试验室;;中国气象局干旱气候变化与减灾重点开放实验室, 兰州, 甘肃 730020, 中国; 2.西北区域气候中心, 兰州, 甘肃 730020, 中国; 3.庆阳市气象局, 庆阳, 甘肃 745000, 中国; 4.平凉市气象局, 平凉, 甘肃 744000, 中国
推荐引用方式 GB/T 7714	赵红岩,张旭东,王有恒,等. 陇东黄土高原气候变化及其对水资源的影响[J]. 中国气象局兰州干旱气象研究所,2011,29(6):262-268.
APA	赵红岩.,张旭东.,王有恒.,张强.,马鹏里.,...&杨小利.(2011).陇东黄土高原气候变化及其对水资源的影响.干旱地区农业研究,29(6),262-268.
MLA	赵红岩,et al."陇东黄土高原气候变化及其对水资源的影响".干旱地区农业研究 29.6(2011):262-268.