The dynamic monitoring of corn planting area distribution in response to climate change from 2001 to 2010: a case study of Northeast China

IF 0.8 4区社会学 Q4 ENVIRONMENTAL STUDIES

Geografisk Tidsskrift-Danish Journal of Geography Pub Date : 2016-01-02 DOI:10.1080/00167223.2015.1101701

Lili Feng, Z. Jia, Jiahua Zhang

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引用次数: 1

Abstract

Climate change has effects on crop distribution and production due to altering precipitation and temperature patterns. Northeast China is one of the most sensitive areas affected by climate change. In this study, MODIS09A1 data from MODerate resolution Imaging Spectroradiometer incorporated with phenology data from 21 agro-meteorological stations were used to monitor the dynamic change of corn distribution in response to climate change in the Northeast China for the decade of 2001 and 2010. Corn area estimates and statistics had the same change trend from 2001 to 2010 showing an annual increase. Furthermore, in order to analyse the gravity centre variations of the corn distribution, regions were chosen with corn planting areas of more than 500 km2. Results showed that the main corn planting area had a trend to move towards high latitude and high longitude in response to climate change. It moved towards north about .58 degrees and east about .21 degrees between 2001 and 2010. The analysis of temperature and precipitation patterns revealed the same trend as the corn planting area. However, the corn area change was more sensitive to temperature than precipitation in Northeast China.

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2001 - 2010年东北地区玉米种植面积分布对气候变化的动态监测

由于降水和温度模式的改变，气候变化对作物分布和生产产生了影响。中国东北是受气候变化影响最敏感的地区之一。利用2001 - 2010年中国东北地区玉米分布对气候变化的响应，结合21个农业气象站的物候资料，利用中分辨率成像光谱仪MODIS09A1数据对玉米分布响应的动态变化进行了监测。玉米面积估计值与统计数据在2001 - 2010年的变化趋势相同，呈逐年增加的趋势。此外，为了分析玉米分布的重心变化，选择玉米种植面积大于500 km2的区域。结果表明:受气候变化影响，玉米主产区有向高纬度、高经度移动的趋势;在2001年至2010年间，它向北移动了0.58度，向东移动了0.21度。温度和降水的变化趋势与玉米种植面积的变化趋势一致。东北地区玉米面积变化对温度的敏感性大于对降水的敏感性。

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来源期刊

Geografisk Tidsskrift-Danish Journal of Geography Multiple-

CiteScore

5.20

自引率

0.00%

发文量

期刊介绍： DJG is an interdisciplinary, international journal that publishes peer reviewed research articles on all aspects of geography. Coverage includes such topics as human geography, physical geography, human-environment interactions, Earth Observation, and Geographical Information Science. DJG also welcomes articles which address geographical perspectives of e.g. environmental studies, development studies, planning, landscape ecology and sustainability science. In addition to full-length papers, DJG publishes research notes. The journal has two annual issues. Authors from all parts of the world working within geography or related fields are invited to publish their research in the journal.