| The influence of climate changes on potato growth in Gansu province |
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| DOI：10.7606/j.issn.1000-7601.2006.03.03 |
| Key Words: Gansu area potato growth climate change countermeasure |
| Author Name | Affiliation | | YAO Yu-bi | Key Laboratory of Arid Climate Change and Reducing Disaster of Gansu Province Lanzhou Institute of Arid Meteorology China Meteorological Administration, Lanzhou 730020 China； Laboratory of Climate Studies China Meteorological Administration, Beijing 100081,China； Meteorological Bureau of Dingxi, Dingxi 743000, China | | DENG Zhen-yong | Key Laboratory of Arid Climate Change and Reducing Disaster of Gansu Province Lanzhou Institute of Arid Meteorology China Meteorological Administration, Lanzhou 730020 China | | WANG Rong-yuan | Key Laboratory of Arid Climate Change and Reducing Disaster of Gansu Province Lanzhou Institute of Arid Meteorology China Meteorological Administration, Lanzhou 730020 China； Laboratory of Climate Studies China Meteorological Administration, Beijing 100081,China | | WANG Yi-rong | Meteorological Bureau of Dingxi, Dingxi 743000, China | | PU Jin-yong | Agriculture observation station of Tianshui, Tianshui 741010, China | | ZHANG Xiu-yun | Meteorological Bureau of Dingxi, Dingxi 743000, China |
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| Abstract: |
| Based on the potato yield data and meteorological data during 1981～2000 from 71 stations of whole Gansu province,we analyzed the time-space characteristic of the potato yield change and the weather factors affecting the potato yield using the EOF,multivariate regression and integral calculus return to return etc.,built up the weather-yield estimation model,put forward the corresponding countermeasures.The results showed that: the yield sequence and the time coefficient sequence of the space type in Longzhong and Longnan area were not significantly correlated.The yield change from year to year had a little scope.In the other areas,the yield sequences and the space types are significantly correlated,and the potato yield changed yearly greatly.Under condition with certain precipitation amount,the potato yield increased as the temperature went up,under condition with certain temperature,the potato yield increased as the precipitation rose. |
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