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| 近47年天山山区自然植被净初级生产力对气候变化的响应 | |
| 引用本文： | 普宗朝,张山清,王胜兰.近47年天山山区自然植被净初级生产力对气候变化的响应[J].中国农业气象,2009,30(3):283-288. |
| 作者姓名： | 普宗朝 张山清 王胜兰 |
| 作者单位： | 1. 新疆乌鲁木齐市气象局,乌鲁木齐,830001 2. 新疆乌鲁木齐市气象局,乌鲁木齐,830001;兰州大学大气科学学院,兰州,730002 3. 新疆气象局,乌鲁木齐,830002 |
| 摘 要： | 利用天山山区10个对各类天然草场气候和植被类型具有较好代表性的气象台站1961—2007年的历史气候资料，使用线性趋势、Modet小波和Mann—Kendall检测等方法在对年平均气温、降水量变化趋势、变化特征分析的基础上，分别采用Miami模型、Thornthwaite Memorial模型、Chikugo模型、朱志辉模型和周广胜模型对该地区的自然植被净初级生产力（NPP）及其对气候变化的响应进行了计算和对比分析。结果表明：近47a，天山山区的气候总体呈较明显的“暖湿化”趋势，并于1970年发生了由“冷干”向“暖湿”的突变；尽管基于各模型的NPP在数值上有一定差异，但其在时空领域对气候变化响应的趋势是一致的，即：47a来，在气候“暖湿化”背景下，天山山区的NPP总体呈较明显的增大趋势，并于1970年发生了突变性的增大；与年平均气温和年降水量一样，基于各模型的NPP也具有3～22a的不同时间尺度的周期变化；在各类草场中，以草甸草原和山地草甸的NNP最高，高寒草甸次之，荒漠草原再次，高寒草原NPP最低。最后建立了基于各模型的NPP估算值之间的相互换算关系。 |
| 关 键 词： | 天山山区 NPP 气候生产力模型 气候变化 |
Response of NPP to Climate Change over last 47 Years in Tianshan Mountain Areas |
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| PU Zong-chao,ZHANG Shan-qing,WANG Sheng-lan.Response of NPP to Climate Change over last 47 Years in Tianshan Mountain Areas[J].Chinese Journal of Agrometeorology,2009,30(3):283-288. | |
| Authors: | PU Zong-chao ZHANG Shan-qing WANG Sheng-lan |
| Institution: | PU Zong-chao , ZHANG Shan-qing ,WANG Sheng-lan ( 1. Urumqi Meteorological Bureau of Xinjiang, Urumqi 830001 ,China;2. Atmospheric Science Institute, Lanzhou University,Lanzhou 730002 ;3. Xinjiang Meteorological Bureau, Urumqi 830002) |
| Abstract: | Based on the historical climate data of ten meteorological stations in 1961 -2007 in Tianshan mountain areas, the annual average temperature, precipitation change tendency and the change characteristics were analyzed, by using methods of linear trend, Morlet wavelet and Mann-Kendall examination. The calculation of the net primary productivity （NPP） was based on the Miami model, Thornthwaite Memorial model, Chikugo model, Zhu Zhihui model and Zhou Guangsheng model separately. The responses of the NPP to climatic change were analyzed by the computation and the contrastive analysis. The results showed that the climate obviously had a warmer and wetter tendency in Tianshan mountain areas, in recent 47 years. The climate mutation from cold and dry to warm and wet occurred in 1970. Although there were some differences in the NPP based on various models, the response tendency of the spatial and temporal distribution of the NPP to climate change was the same. The NPP in Tianshan mountain areas obviously increased under the background of the climate change with warmer and wetter trend. The NPP mutation was in 1970 too. The NPP based on various models had a three to 22 years periodic change at the different time scales, which was completely consistent with changes of the annual average temperature and precipitation. Among all of the different pastures, the NNP in the meadow prairie and mountainous region meadow was the highest, while it was the lowest in the cold prairie, and it was between in the high and cold meadow, and the desert. Finally, the mutual conversion relations of NPP based on the various models were established. |
| Keywords: | NPP |
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