| 珠杰桑布,张存杰,王兴,白玛德吉,尼玛拉姆.西藏日喀则地区马铃薯气候适宜度模型分析及其时空变化特征研究[J].干旱地区农业研究,2023,(1):185~192 |
| 西藏日喀则地区马铃薯气候适宜度模型分析及其时空变化特征研究 |
| Analysis of potato climate suitability model and its temporal and spatial variation characteristics in Shigatse, Tibet |
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| DOI：10.7606/j.issn.1000-7601.2023.01.22 |
| 中文关键词: 马铃薯 气候适宜度 时空变化 模型 日喀则地区 |
| 英文关键词:potato climate suitability temporal and spatial changes model Shigatse region |
| 基金项目:西藏自治区自然科学基金项目(XZ202001ZR0082G)；国家重点研发计划项目(2020YFA0608203) |
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| 中文摘要: |
| 基于日喀则地区7个国家气象站1980—2021年逐日气象数据，分析构建了高原马铃薯气温(T)、光照(S)、水分(W)、气候(C)适宜度评价模型并对其时空变化特征进行分析，结果发现：近42年日喀则地区S平均值为0.82，呈逐年弱下降趋势，T、W、C适宜度平均值分别为0.79、0.64、0.61，均呈逐年上升趋势；马铃薯全生育期的光热资源都在最合理区域（S、T≥0.7）,满足了其长发育需求。W在播种~出苗期（W=0.62）、开花~成熟期（W=0.44）呈现较低水平，是制约日喀则地区马铃薯生长发育的最主要因素；T、S空间分布较均匀,且呈现自西向东、自南北向中递增趋势，W空间分布不均匀。桑珠孜区—南木林县一带地区为马铃薯综合气候适宜度高值区（C＞0.6）,适宜大力发展马铃薯产业。由本文建立的日尺度气候适宜度评价模型得出的年际变化和区域特征结果与实际情况比较一致，为了解气候变化下日喀则马铃薯生长发育适宜度的时空变化提供依据 |
| 英文摘要: |
| Based on the daily meteorological data of seven national meteorological stations in Shigatse from 1980 to 2021, the suitability evaluation models of temperature (T), light (S), water (W) and climate (C) of potato in the plateau were analyzed and constructed, and their spatial and temporal variation characteristics were analyzed. The results showed that the average value of S in Shigatse in recent 42 years was 0.82, showing a weak downward trend year by year. The average values of T, W and C suitability were 0.79, 0.64 and 0.61, respectively, showing an upward trend year by year; The light and heat resources in the whole growth period of potato were in the most reasonable area (S, T≥0.7), meeting the growth and development needs of potato. W was at a low level from sowing to emergence (W=0.62) and from flowering to maturity (W=0.44), which was the main factor restricting the growth and development of potato in Shigatse area. The spatial distribution of T and S were relatively uniform and presented an increasing trend from west to east, from south to middle and from north to middle, while the spatial distribution of W was uneven. Sangzhuzi District in Nanmulin county was a high value area of potato comprehensive climate suitability (C>0.6) and suitable for vigorously developing potato industry. The interannual change and regional characteristics obtained from the daily scale climate suitability evaluation model established in this paper are consistent with the actual situation, providing a basis for understanding the temporal and spatial changes of potato growth and development suitability in Shigatse under climate change. |
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