陇东黄土高原地区热量资源分布演变分析及对农业生产的影响  

Analysis on Change Characteristics of the Thermal Resource in Longdong Plateau and the Influence on Agricultural Production

作　　者：车向军[1,2] 周忠文 张谋草 杜军 韩世昌 

机构地区：[1]中国气象局兰州干旱气象研究所/中国气象局干旱气候变化与减灾重点开放实验室/甘肃省干旱气候变化与减灾重点实验室,兰州730020 [2]庆阳市气象局,甘肃西峰745000 [3]固原市气象局,宁夏固原756000

出　　处：《中国农学通报》2014年第32期221-226,共6页Chinese Agricultural Science Bulletin

基　　金：国家重点基础研究发展计划(973计划)(2013CB430206);公益性行业(气象)科研专项"农田水分利用效率对气候变化的响应与适应技术"(GYHY201106029);西峰区2014年中央财政"三农"服务专项

摘　　要：为了研究陇东黄土高原地区热量资源的变化,提高为农气象服务的科学性和有效性,笔者对庆阳市具有代表性的环县、庆城和西峰的1960—2013年的气温资料的变化特征进行分析。结果表明:庆阳在近54年以来,年平均气温在波动中呈上升趋势,但各具特点;农耕期增加,作物种植界限北移且多样化;热量资源均有增加,中部川道地区最为丰富;终霜日结束趋势偏早,作物遭受冻害的次数减少。各地应根据气候变化,适当调整和优化农业产业结构,增加设施农业、特色农业及秋作物的种植比例和技术投入,同时,科学有效的预防由于热量资源增加而引发的自然灾害,实现农业生产的可持续发展。In order to study the change of heat resources in Longdong Area and improve the capacity of agricultural meteorological services, the author analyzed change features of the air temperature data from 1960 to 2013 in Huanxian, Qingcheng and Xifeng, three representative areas in Qingyang. The results showed that in the past 54 years, the annual average temperature of Qingyang nrose in volatility, but had their own characteristics. Farming days increased and crop planting boundary went northward with diversity. The heat resources increased and were most abundant in the central plain area. The end of the last frost date showed a trend shifting to an earlier time, crops suffered from frost damage were reduced. It was suggested that according to the climate change, the industrial structure of agriculture should be adjusted and optimized, both technological input in characteristic agriculture and agriculture facilities and proportion of autumn crops should be increased. At the same time, scientific and effective prevention of natural disasters caused by the increased heat resources should be carried out to realize the sustainable development of agricultural production.

关 键 词：气候变化 热量资源 积温 终霜日 

分 类 号：S162.3[农业科学—农业气象学]