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Impact of Climate Change on Development Period of Spring Highland Barley in Xizagê of Xizang
DUJun, LUHongya, XUWei, LIUJiandong, HUANGZhicheng
Chin Agric Sci Bull ›› 2026, Vol. 42 ›› Issue (12) : 119-126.
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Abbreviation (ISO4): Chin Agric Sci Bull
Editor in chief: Yulong YIN
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Impact of Climate Change on Development Period of Spring Highland Barley in Xizagê of Xizang
The highland barley is the main food crop on the Tibetan Plateau, and its growth and yield is highly sensitive to climate change. To adapt to climate change, ensure food security on the plateau, and promote the high-quality development of the highland barley industry, based on the data on the development stage (DVS) of spring highland barley in Xizagê and the daily meteorological data on the average temperature, precipitation and sunshine duration collected from 1992 to 2024, the response of DVS of highland barley to climate change in the recent 33 years was analyzed, and the leading meteorological factors influencing DVS were also identified through several statistical methods such as climate trend, Pearson correlation coefficients, Mann-Kendall, Cramer and stepwise regression method. The results showed that: (1) the dates of various development stages of spring highland barley have delayed significantly at a rate of 2.77-9.64 days per decade, with the dough stage delaying the most, and the maturity stage delaying the least. The length of vegetative growth period (VGP) was slightly prolonged (0.62 d/10a), and the length of reproductive growth period (RGP) and whole growth period (WGP) was significantly shortened, with a rate of 3.63 days and 3.62 days per decade, respectively. (2) About 90% abrupt change in the delays of development stages occurred around 2010. Except for the sowing to three leaf stage, the abrupt change in the length of each development stage mainly occurred at the beginning of the 21st century. No abrupt change in the lengths of the VGP and WGP were identified, while the length of the RGP underwent a turning point from long to short growth period in 2013. (3) The slight increase in sunshine duration was identified as leading factor causing the extension of VGP length. The significant shortened length of RGP was attributed to the combined effects of a noticeable decrease in precipitation and a significant rise in temperature, and the significant increase in temperature led to the significant shortened length of WGP. The above results indicate that climate warming will shorten the whole growth period of highland barley and has an impact on yield formation. It is necessary to optimize planting management and breeding high-temperature resistant varieties to cope with climate change.
spring highland barley / growth period / climate trend rate / climate abrupt / Xizagê
| [1] |
姚檀栋, 刘晓东, 王宁练. 青藏高原地区的气候变化幅度问题[J]. 科学通报, 2000, 45(1):98-106.
|
| [2] |
徐祥德, 董李丽, 赵阳, 等. 青藏高原“亚洲水塔”效应和大气水分循环特征[J]. 科学通报, 2019, 64(27):2830-2841.
|
| [3] |
陈德亮, 徐柏青, 姚檀栋, 等. 青藏高原环境变化科学评估:过去、现在与未来[J]. 科学通报, 2015, 60(32):3025-3035.
|
| [4] |
次旺扎西, 旦增伦珠, 次央, 等. 青藏高原地区不同海拔高度气温的变化特征[J]. 高原山地气象研究, 2025, 45(1):32-38.
|
| [5] |
中国气象局气候变化中心. 中国气候变化蓝皮书2025[M]. 北京: 科学出版社, 2025.
|
| [6] |
吴昆仑. 青稞功能元素与食品加工利用简述[J]. 作物杂志, 2008(2):15-17.
|
| [7] |
强小林, 顿珠次仁, 次珍, 等. 西藏青稞产业发展现状分析[J]. 西藏农业科技, 2011, 33(1):1-3.
|
| [8] |
杜军, 刘依兰, 建军, 等. 气候变化对西藏青稞种植的影响研究[M]. 北京: 气象出版社, 2017.
|
| [9] |
刘国一, 普布贵吉, 甘雅文, 等. 2010-2019年西藏粮食增产的贡献因素[J]. 应用与环境生物学报, 2022, 28(4):931-934.
|
| [10] |
郝帅, 宋艳玲, 孙爽, 等. 气候变化对青藏高原青稞生产影响的研究综述[J]. 中国农业气象, 2023, 44(5):398-409.
|
| [11] |
高佳佳, 杜军, 刘朝阳, 等. 西藏地区主要农作物敏感区对气候变化的响应[J]. 生态与农村环境学报, 2019, 35(11):1484-1489.
|
| [12] |
Climate change is a global environmental crisis, but there have been few studies of the effects of climate change on cereal yields on the Tibetan Plateau. We used data from meteorological stations and statistical yearbooks to assess the impacts of climate change on cereal yields in Tibet. Three types of statistical models were selected: fixed-effects model, first-difference models, and linear detrending models. We analyzed the impacts of climate change (including the minimum temperature, precipitation, growing degree days and solar radiation) on cereal yields in Tibet from 1993 to 2017 at the county, prefecture-level city, and autonomous region scales. The results showed that the sensitivity of cereal yields in Tibet to temperature (minimum temperature and growing degree days) was greater than their sensitivity to precipitation and solar radiation. The joint impacts of climate variables were positive, but the sensitivity and significance varied in different regions. The impacts of minimum temperature, precipitation, and solar radiation were positive in all cities, apart from the negative impacts of growing degree days on cereal yields in Lhasa. The impacts of climate trends on cereal yields in Tibet were positive and the results were in the range of 1.5%-4.8%. Among the three types of model, the fixed-effects model was the most robust and the linear detrending model performed better than the first-difference model. The robustness of the first-difference model decreased after adding the interaction terms between different climate variables. Our findings will help in implementing more spatially targeted agricultural adaptations to cope with the impacts of climate change on the agro-ecosystem of the Tibetan Plateau. |
| [13] |
|
| [14] |
|
| [15] |
赵佳丽, 兰措卓玛, 王伟, 等. 基于MaxEnt模型的青藏高原青稞适生区对气候变化响应的分析[J]. 中国生态农业学报(中英文), 2024, 32(10):1626-1638.
|
| [16] |
严应存, 赵全宁, 王喆, 等. 青海省门源县1980-2015年青稞物候期变化趋势及其驱动因素[J]. 生态学报, 2018, 38(4):1264-1271.
|
| [17] |
李璠, 校瑞香, 严应存, 等. 气候变化对青海省青稞物候期的影响[J]. 麦类作物学报, 2022, 42(6):755-763.
|
| [18] |
胡颂杰. 西藏农业概论[M]. 成都: 四川科学技术出版社, 1995.
|
| [19] |
西藏自治区统计局, 国家统计局西藏调查总队. 西藏统计年鉴-2024[M]. 北京: 中国统计出版社, 2024.
|
| [20] |
黄志诚, 杜军, 白宇轩, 等. 1981-2020年西藏高原汛期降水量时空变化特征[J]. 高原山地气象研究, 2024, 44(2):83-90.
|
| [21] |
边多, 黄晓清, 陈涛, 等. 西藏气候变化监测公报2023[M]. 北京: 气象出版社, 2024.
|
| [22] |
杜军, 普布卓玛, 索朗欧珠. 西藏青稞需水关键期降水的气候变化[J]. 干旱地区农业研究, 2004, 22(1):23-27.
|
| [23] |
石磊, 杜军, 刘依兰. 气候变化对日喀则保灌地青稞生育期的影响[J]. 中国农学通报, 2016, 32(33):182-186.
为了研究近年来气候因子在日喀则保灌地青稞生育期天数变化中的作用，利用青稞生育期和气象观测资料，对生育期天数及生育期内气象要素进行趋势分析、突变分析和相关性分析，阐述了气候变化对青稞生育期天数的影响。结果表明：1992—2012 年，日喀则青稞全生育期天数呈显著减少趋势，减幅为0.68 d/a。气温和日照对生育期天数变化的作用明显，其中，三叶期、成熟期的平均气温与该生育期天数呈明显负相关；孕穗期、乳熟期的平均气温与该生育期天数为正相关。分蘖期、孕穗期的日照时数与该生育期天数为正相关，拔节期、开花期的日照时数与该生育期天数为负相关。青稞多个生育期天数发生突变，分蘖期、乳熟期天数突变年份为2001 年，这与日喀则青稞品种由‘藏青320’更换为其他品种的时间一致。品种更换后，日照时数变化对分蘖期天数的影响减弱，同时乳熟期天数延长了约16天。
|
| [24] |
|
| [25] |
|
| [26] |
国家气象局. 农业气象观测规范[M]. 北京: 气象出版社, 1993.
|
| [27] |
杜军, 刘依兰, 袁雷, 等. 青稞发育期农业气象观测规范DB54/T 0147—2018[S]. 拉萨: 西藏自治区质量技术监督局, 2018.
|
| [28] |
魏凤英. 现代气候统计诊断与预测技术(第2版)[M]. 北京: 气象出版社, 2007.
|
| [29] |
唐启义. DPS数据处理系统-实验设计、统计分析及数据挖掘(第2版)[M]. 北京: 科学出版社, 2010.
|
| [30] |
袁瑞瑞, 黄萧霖, 郝璐. 近40年中国饱和水汽压差时空变化及影响因素分析[J]. 气候与环境研究, 2021, 26(4):413-424.
|
| [31] |
|
| [32] |
晋美朗杰, 巴桑, 郭艺楠, 等. 气候变化对拉萨河谷冬小麦主要生育期的影响分析[J]. 高原山地气象研究, 2023, 43(3):73-79.
|
| [33] |
俄有浩, 霍治国, 马玉平, 等. 中国北方春小麦生育期变化的区域差异性与气候适应性[J]. 生态学报, 2013, 33(19):6295-6302.
|
| [34] |
杜军, 高佳佳, 索朗塔杰, 等. 1991-2020年西藏春小麦生育期对气候变化的响应[J]. 麦类作物学报, 2021, 41(8):1044-1054.
|
| [35] |
|
/
| 〈 |
|
〉 |
