干旱区生态环境知识资源中心(Arid): 哈密绿洲土地利用变化对区域环境的影响

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	哈密绿洲土地利用变化对区域环境的影响
其他题名	Effects of Land Use /Cover Change on Regional Environment in the Hami Oasis
	杜皓阳 1; 胡琪 2; 张弛 3; 邱源 1; 邵华 3; 潘涛 1; 金晓龙 1; 常红 4
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2018
卷号	35 期号:3 页码:568-578
中文摘要	中国干旱区绿洲在过去20 a经历了快速的城市化和农田扩张,为了探究该区域不同下垫面在荒漠-绿洲-城市演化过程中对区域自然环境以及气象要素的影响。以典型的哈密绿洲为研究区,利用WRF模式分别耦合2000年、2015年2期土地利用数据,模拟对比分析夏季7月哈密绿洲土地利用变化前后区域自然环境要素的影响,采集的指标为2 m气温、2 m相对湿度、地表温度。研究表明: ①哈密绿洲土地利用变化对气象要素的综合效应表现为: 2 m气温升高1.2 ℃,相对湿度增加2%; ②下垫面由绿洲转变为城市,2 m气温增加2.5~ 3 ℃,地温增加6~ 7.5 ℃,相对湿度减小4%~ 8%; ③由荒漠变为城市,2 m气温增加1~ 2 ℃,地温增加3~ 6 ℃,相对湿度减小0~ 4%; ④由荒漠变为绿洲,2 m气温降低1.5~ 4 ℃,地温降低0~ 7.5 ℃,相对湿度增加4%~ 16%。总体来看:在中国干旱区,城市化过程使该区域进一步变热和变干,与之相反,绿洲扩张使得区域具有变冷和变湿的趋势。
英文摘要	The oases in northwest China have experienced the rapid urbanization and agricultural reclamation during the last decades. In order to investigate the effects of these land use /cover changes on regional environment, the Weather Research and Forecast (WRF) model was used in researching the Hami Oasis in this study. Two 1- month simulations were conducted separately in July with different land use /cover datasets derived from the satellite images of 2000 and 2015. Firstly,we not only used the data from the observation stations to validate the model accuracy,but also used the remote sensing retrieval data to validate the land surface temperature. The values of 2 m height air temperature were validated through the bias between the observed values and the outputs of WRF model,and the root mean square error (RMSE) between the observed values and the model outputs, the correlation coefficient (R) between the observed values and the model outputs,and the average Bias,and RMSE and R between the observed values and the model outputs were 0.4,1 . 7 and 84% respectively. The average bias,RMSE and 2 m height relative humidity was 1.6,5 . 8 and 81% respectively. The correlation coefficient of land surface temperature between remote sensing retrieval value and the model out was 87%. These results showed that our model was very reliable. Secondly, this paper investigated the 2 m height temperature,2 m height relative humidity and land surface temperature in 2000 and 2015 respectively. Comparison between the model results showed that 2 m height temperature was increased by 1.2 ℃ and the 2 m height relative humidity by 2% from 2000 to 2015 in the whole region. The 2 m height temperature was increased by 2.5- 3 ℃ and the land surface temperature by 6- 7.5 ℃,but the 2 m height relative humidity was decreased by 4%- 8% when the land use /cover transformed from oasis to urban area. On the contrast, the 2 m height air temperature was increased by 1- 2 ℃ and the land surface temperature by 3- 6 ℃,but the 2 m height relative humidity was decreased by 0- 4% when the desert was replaced by urban area. In addition, the 2 m height temperature was decreased by 1.5- 4 ℃ and land surface temperature by 0- 7.5 ℃,but the 2 m height relative humidity was increased by 4%- 16% when the land use /cover transformed from desert to oasis. As a conclusion, the urban sprawl intensified the effect of the urban heat and dry island,while the oasis expansion made the oasis cool and the wet island more obvious.
中文关键词	土地利用变化 ; 2 m气温 ; 2 m相对湿度 ; 地表温度 ; 哈密绿洲
英文关键词	WRF WRF LUCC 2 m height air temperature 2 m height relativity humidity surface temperature Hami oasis
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURAL ECONOMICS POLICY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6245055
来源机构	中国科学院新疆生态与地理研究所 ; 石河子大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/237651
作者单位	1.中国科学院新疆生态与地理研究所;;中国科学院大学, 荒漠与绿洲国家重点实验室;;, 乌鲁木齐;;, 新疆;;北京 830011;;100049, 中国; 2.内布拉斯加大学林肯分校自然资源学院和地球与大气科学系, 林肯, 68583, 美国; 3.中国科学院新疆生态与地理研究所, 荒漠与绿洲国家重点实验室, 乌鲁木齐, 新疆 830011, 中国; 4.石河子大学, 石河子, 新疆 832000, 中国
推荐引用方式 GB/T 7714	杜皓阳,胡琪,张弛,等. 哈密绿洲土地利用变化对区域环境的影响[J]. 中国科学院新疆生态与地理研究所, 石河子大学,2018,35(3):568-578.
APA	杜皓阳.,胡琪.,张弛.,邱源.,邵华.,...&常红.(2018).哈密绿洲土地利用变化对区域环境的影响.干旱区研究,35(3),568-578.
MLA	杜皓阳,et al."哈密绿洲土地利用变化对区域环境的影响".干旱区研究 35.3(2018):568-578.