气候变化对西藏农业生产的影响
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2019年第1期试验研（
气候变化对西藏农业生产的影响
刘国一1，2
（1•省部共建青5和耗牛种质资源与遗传改良国家重点实验室，西藏拉萨850000 ；2•西藏自治区农牧科学院农业资源与环境研 究所，西藏拉萨850000）
摘 要：气候变化已成为全球公认的环境问题，主要因人类活动温室气体排放增加导致，青藏高原是气候变化的敏感区，生态环境
和农业生产受气候变化的影响较大，研究气候变化对西藏农业的应对意义重大。文章综述了当前西藏气候变化方面的研究进展,
分析气候变化对西藏农业产生的影响，西藏的温度增加趋势比较明显，高于全球同纬度的平均增温速率。降水量也呈增加趋势,
增温与降水在空间上具有不一致性，西藏的气候将朝着暖湿化方向发展，对农业的生产形成较大的挑战。冬春季的增温趋势使得
气候变 IUCC第五
为全球公认的环境 ，2013三 出⑴,球气候系统变暖的
事实是
的， 活动对于气候变 挥了
一半以上的影响,主要是温室气体的大
与土
利用的变化,自从
1750
业
以来,
CO2、CH等温室气体的
Abstract ： Climate change has become a globtly occvnized environmental problem, mainly due te increased greenhouse gas emissions tom human activities. The Qinghai-Tibet Plateau is a sensitivv area for cliaate change. The ecolooical environment and agricultural production are greatly affected by cliaate change. The response is significant. The alicle reviews the current research povoss on climate change in Ti bet and analyzes the irnpact of cliaate change on Tibetan agricultuo. The temperatuo increase trend in Tibet is relatively obvious, which is higher than the average temperature increase rate at the same latitude in the wold. Precipitation also shows an increasing trend. The temper ature increase and precipitation are spatially inconsistent. The cliaate of Tibet will develop in the direction of warming and humidification, which will pose a greater chClenge to agricultural production. The warming trend in winter and spring makes the phenolooical period of the cop ahead, so that the sowing date is advanced, and the layout of the cop moves to high latitudes and high altitudes, which is conducive to the replanting. The increase of temperature increases the activity of microoreanisms in the soil, accelerates the decomposition of soil oreanic matter, and the soil oreanic matter content decreases. Cliaate change has had an anpact on Tibet( s agricultural production, which seriously threatens Tibet( s food production security and needs to actively explore coping strateyies. Key words ： Qinghai-Tibet Plateau ； Cliaate change ； Warming ； Precipitation
文献标识码:Aຫໍສະໝຸດ Effect of Climate Change on Tibetan Agricultural Production
LIU Guo-yi1，2 (1. Barley Improvement and Yak Breeding Key Labootoo of Tibet Autonomous Reyion, Tibet Lhasa 850000, China ；2. Institute of Agricul tural Resources and Environment, Tibet Autonomous Reyion Academy of Agriculture and Animal Husbando, Tibet Lhasa 850000, China)
作物的物候期提前,使得播期提前，作物的布局向高纬度和高海拔地区推移，有利于套复种。温度增加使土壤中微生物的活性增
加，加速对土壤有机质的分解，土壤有机质含量呈下降趋势。气候变化对西藏的农业生产带来了影响，严重威胁到西藏的粮食生
产安全问题，需要积极探寻应对策略。
关键词：青藏高原；气候变化;增温；降水
中图分类号:S812
气候变化对西藏农业生产的影响
刘国一1，2
（1•省部共建青5和耗牛种质资源与遗传改良国家重点实验室，西藏拉萨850000 ；2•西藏自治区农牧科学院农业资源与环境研 究所，西藏拉萨850000）
摘 要：气候变化已成为全球公认的环境问题，主要因人类活动温室气体排放增加导致，青藏高原是气候变化的敏感区，生态环境
和农业生产受气候变化的影响较大，研究气候变化对西藏农业的应对意义重大。文章综述了当前西藏气候变化方面的研究进展,
分析气候变化对西藏农业产生的影响，西藏的温度增加趋势比较明显，高于全球同纬度的平均增温速率。降水量也呈增加趋势,
增温与降水在空间上具有不一致性，西藏的气候将朝着暖湿化方向发展，对农业的生产形成较大的挑战。冬春季的增温趋势使得
气候变 IUCC第五
为全球公认的环境 ，2013三 出⑴,球气候系统变暖的
事实是
的， 活动对于气候变 挥了
一半以上的影响,主要是温室气体的大
与土
利用的变化,自从
1750
业
以来,
CO2、CH等温室气体的
Abstract ： Climate change has become a globtly occvnized environmental problem, mainly due te increased greenhouse gas emissions tom human activities. The Qinghai-Tibet Plateau is a sensitivv area for cliaate change. The ecolooical environment and agricultural production are greatly affected by cliaate change. The response is significant. The alicle reviews the current research povoss on climate change in Ti bet and analyzes the irnpact of cliaate change on Tibetan agricultuo. The temperatuo increase trend in Tibet is relatively obvious, which is higher than the average temperature increase rate at the same latitude in the wold. Precipitation also shows an increasing trend. The temper ature increase and precipitation are spatially inconsistent. The cliaate of Tibet will develop in the direction of warming and humidification, which will pose a greater chClenge to agricultural production. The warming trend in winter and spring makes the phenolooical period of the cop ahead, so that the sowing date is advanced, and the layout of the cop moves to high latitudes and high altitudes, which is conducive to the replanting. The increase of temperature increases the activity of microoreanisms in the soil, accelerates the decomposition of soil oreanic matter, and the soil oreanic matter content decreases. Cliaate change has had an anpact on Tibet( s agricultural production, which seriously threatens Tibet( s food production security and needs to actively explore coping strateyies. Key words ： Qinghai-Tibet Plateau ； Cliaate change ； Warming ； Precipitation
文献标识码:Aຫໍສະໝຸດ Effect of Climate Change on Tibetan Agricultural Production
LIU Guo-yi1，2 (1. Barley Improvement and Yak Breeding Key Labootoo of Tibet Autonomous Reyion, Tibet Lhasa 850000, China ；2. Institute of Agricul tural Resources and Environment, Tibet Autonomous Reyion Academy of Agriculture and Animal Husbando, Tibet Lhasa 850000, China)
作物的物候期提前,使得播期提前，作物的布局向高纬度和高海拔地区推移，有利于套复种。温度增加使土壤中微生物的活性增
加，加速对土壤有机质的分解，土壤有机质含量呈下降趋势。气候变化对西藏的农业生产带来了影响，严重威胁到西藏的粮食生
产安全问题，需要积极探寻应对策略。
关键词：青藏高原；气候变化;增温；降水
中图分类号:S812