JIA Xiang,WANG Chao,ZHAO Ying,et al.Spatial Distribution Characteristics of Accumulated Temperature Above 10 ℃ in Jilin Province[J].HEILONGJIANG AGRICULTURAL SCIENCES,2019,(08):47-50.[doi:10.11942/j.issn1002-2767.2019.08.0047]
吉林省≥10 ℃积温空间分布特征
- Title:
- Spatial Distribution Characteristics of Accumulated Temperature Above 10 ℃ in Jilin Province
- Keywords:
- Jilin Province; accumulated temperature; multiple linear regression model; digital elevation model
- 文献标志码:
- A
- 摘要:
- 积温作为一个地区重要的热量资源指标,对作物生长发育有显著的影响。为明确吉林省积温空间分布状况,基于吉林省51个气象站的地面累年日平均气温资料和地理信息数据,通过建立多元线性回归模型、ArcGis空间插值等方法对吉林省≥10 ℃积温空间分布特征进行分析。结果表明:吉林省≥10 ℃积温与经度、纬度、海拔都呈现负相关关系;≥2 500 ℃〖DK1〗·d积温带面积占吉林省面积的74.19%;吉林省≥10 ℃积温空间分布总体呈现“自东南向西北,由山地向平原逐渐增加”的布局;吉林省≥10 ℃积温最大值位于四平市,最小值位于长白山国家级自然保护区。
- Abstract:
- Accumulated temperature is an important heat index and it has remarkable effect on crop growth.Based on the daily mean air temperature data from 51 meteorological observation stations in Jilin Province and geographic information data,spatial distribution characteristics of accumulated temperature above 10 ℃ in Jilin Province were analyzed by using multiple linear regression model and ArcGis spatial interpolation.The results indicated that,accumulated temperature above 10 ℃ was negatively correlated with the longitude,latitude and altitude in Jilin Province; the area of accumulated temperature above 2 500 ℃〖DK1〗·d accounted for 74.19% of the Jilin Province; the spatial distribution of accumulated temperature above 10 ℃ gradually increased from southeast to northwest,and from mountain to plains; the highest value region was distributed in Siping City and the lowest value region was distributed in Changbai Mountain National Nature Reserve.
参考文献/References:
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备注/Memo
收稿日期:2019-03-22