| 近期气候波动与LUCC过程对东北农田生产潜力的影响 |
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| 引用本文： | 徐新良,刘纪远,曹明奎,张树文.近期气候波动与LUCC过程对东北农田生产潜力的影响[J].地理科学,2007,27(3):318-324. |
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| 作者姓名： | 徐新良 刘纪远 曹明奎 张树文 |
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| 作者单位： | 1. 中国科学院地理科学与资源研究所, 北京, 100101;2. 中国科学院东北地理与农业生态研究所, 吉林, 长春, 130012 |
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| 基金项目： | 国家自然科学基金，中国博士后科学基金 |
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| 摘 要： | 利用1991~2000年逐日气象资料以及20世纪80年代末和90年代末土地利用数据,估算了东北地区气候波动和LUCC过程对农田生产潜力的影响。结果显示:90年代东北地区由于作物生长季内气候变暖和降水减少,生产潜力普遍降低6.45%,其中降水量变化的区域差异是导致生产潜力变化区域分异的主要原因。在LUCC过程的影响下,东北地区生产潜力总量净增加2 402.79×104t。从气候波动和LUCC过程对生产潜力的影响程度看,气候波动要低于LUCC过程的作用,LUCC过程所导致的生产潜力的增长趋势抵消了气候波动所带来的降低趋势,10年间东北地区农田生产潜力总量净增加992.23×104t。
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| 关 键 词： | 土地利用变化 生产潜力 光合生产潜力 光温生产潜力 气候生产潜力 气候波动 |
| 文章编号： | 1000-0690（2007）03-0318-07 |
| 收稿时间： | 2005-12-24 |
| 修稿时间： | 2005-12-242006-04-07 |
Impact of Recent Climate Fluctuation and LUCC Process on Potential Productivity for Crops in Northeast China |
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| XU Xin-Liang,LIU Ji-Yuan,CAO Ming-Kui,ZHANG Shu-Wen.Impact of Recent Climate Fluctuation and LUCC Process on Potential Productivity for Crops in Northeast China[J].Scientia Geographica Sinica,2007,27(3):318-324. |
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| Authors: | XU Xin-Liang LIU Ji-Yuan CAO Ming-Kui ZHANG Shu-Wen |
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| Institution: | 1. Institute of Geographic Sciences and Nature Resources Research, Chinese Academy of Sciences, Beijing 100101;2. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, Jilin 130012 |
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| Abstract: | This paper estimated the impact of recent climate fluctuation and LUCC process on potential productivity in Northeast China.The results show that from 1991 to 2000 the potential productivity generally decreased 6.45% because of climate warming and precipitation decreasing.The land-use change made potential productivity take great changes in the region that land-use change took place.The changes were mostly driven by LUCC conversion process,in the 1990s the total potential productivity increased 24.03?106 t.Comparing the influence of climate fluctuation and LUCC process,the impact of climate fluctuation was less than that of LUCC process,the increased trend of potential productivity that leaded by LUCC process counteracted the decreased trend leaded by climate fluctuation.Under the integrated influence of climate fluctuation and LUCC process,total potential productivity increased by 9.92?106 t in the 1990s. |
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| Keywords: | land-use change productivity photosynthetic productivity photosynthetic thermal productivity climatic productivity climate fluctuation |
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