玉溪市不同海拔高度耕地及热量资源特征分析
以玉溪市国土资源统计公布的数据资料为基础，采用GIS计算机图形处理技术进行数据分割处理，对不同海拔区域耕地资源及气候配置状况进行分析。结果表明：全市耕地在350—2650m海拔均有分布，主要集中在1300～2000m海拔范围内、达15．42万hm^2；湖盆区耕地分布在1100～2650m的中高海拔范围内，随着海拔高度的增加，热量资源呈递减趋势，年平均气温19．26-10．79℃，≥10℃活动积温6701．6～2365．7℃；哀牢山东坡海拔高差较大，耕地分布在350～2550m海拔范围内，年平均气温22．96～12_25℃，≥10℃活动积温8039．0～2346．2℃。...
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| Published in | 广东农业科学 Vol. 39; no. 18; pp. 172 - 174 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
玉溪农业职业技术学院,云南玉溪,653106%玉溪市农业科学院,云南玉溪,653100%玉溪市种子管理站,云南玉溪,653100
2012
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| Subjects | |
| Online Access | Get full text |
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| Summary: | 以玉溪市国土资源统计公布的数据资料为基础，采用GIS计算机图形处理技术进行数据分割处理，对不同海拔区域耕地资源及气候配置状况进行分析。结果表明：全市耕地在350—2650m海拔均有分布，主要集中在1300～2000m海拔范围内、达15．42万hm^2；湖盆区耕地分布在1100～2650m的中高海拔范围内，随着海拔高度的增加，热量资源呈递减趋势，年平均气温19．26-10．79℃，≥10℃活动积温6701．6～2365．7℃；哀牢山东坡海拔高差较大，耕地分布在350～2550m海拔范围内，年平均气温22．96～12_25℃，≥10℃活动积温8039．0～2346．2℃。 |
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| Bibliography: | 44-1267/S Based in the statistics data of Yuxi land and resources, using GIS computer graphics treatment techniques for data segmentation processing, different altitude area of cultivated ]and resources and climate distribution conditions were analyzed. The results showed that： The cultivated land from 350 m to 2 650 m altitude were distribution, mainly concentrated in the 1 300 m to 2 000 m range, 154 200 hm2; Hupenqu cultivated land distribution in the 1 100 m to 2 650 m high altitude of range, with the rising of altitude, the heat resources was degressive tendency, average temperature of 19.26 to 10.79℃, 10℃ activities in frequency 6 701.6 to 2 365.7℃ accumulative temperature; Elevation difference was bigger in east slope of Ailaoshan, cultivated land distribution in the 350 m to 2 550 m altitude range, average temperature of 22.96 to 12.25℃, 10℃ activities in frequency 8039.0 to 2 346.2℃ accumulative temperature. cultivated land resources; elevation; temperature; space distribution LU Xing-xing, GUO Yong-qin |
| ISSN: | 1004-874X |
| DOI: | 10.3969/j.issn.1004-874X.2012.18.059 |