论文部分内容阅读
选取内蒙古东部地区48个气象站1961-2014年的日气温、降水资料,计算了与农牧业生产相关的热量、水分等要素,深入分析了气候资源对气候变暖的响应及其对农牧业生产的影响。结果表明:1987-2014年比1961-1986年增温明显,特别是最低气温的增幅最为显著,冬季增温高于其它季节;≥0℃、≥10℃积温和无霜期均有所增加,积温线向西北方向推进;冬季≤-25℃低温天数明显减少;作物生长季降水量基本持平,但降水变率增大。因气候变暖,热量资源显著增加,长生育期作物扩种,设施农业冻害风险降低,有利于牲畜安全越冬度春,但会导致天然牧草退化,病虫害虫卵易于越冬;降水变率增大使干旱发生概率变大。
Based on the daily temperature and precipitation data of 48 weather stations in eastern Inner Mongolia from 1961 to 2014, the factors such as caloric and water content related to agriculture and animal husbandry were calculated, and the response of climate resources to climate warming and its impacts on agriculture and animal husbandry The impact of industry production. The results show that the warming rate is obviously higher than that of 1961-1986 from 1987 to 2014, especially the minimum temperature increase is the most significant, and the temperature increase in winter is higher than other seasons. The accumulative temperature and frost-free period of ≥0 ℃ and ≥10 ℃ both increase, Advancing to the northwest direction; the number of days with cold temperature less than -25 ℃ decreased significantly in winter; the precipitation in crop growing season was basically the same, but the precipitation rate increased. Due to climate warming, significant increase in caloric resources, expansion of crops in the long-term growth period, reduced risks of frost damage in facilities and agriculture, which will be conducive to the safety of livestock overwintering spring, but will lead to the degradation of natural forage, insect pests easy to overwinter; Occurrence probability increases.