共查询到18条相似文献,搜索用时 62 毫秒
1.
本文根据气候变暖的气象现象,结合有关研究,提出气候变暖对黑龙江省农业生产的影响。并依据黑龙江省主要气候特征和主要作物的生长习性,提出了黑龙江省作物区域布局和农作物产业结构调整的建议,从而为黑龙江省应对气候变暖带来的问题提供了依据,以便于更好的使气象服务于农业生产。 相似文献
2.
我国气候变暖对农业影响研究的进展 总被引:11,自引:3,他引:11
我国气候变暖对农业影响研究的进展王馥棠(中国气象科学研究院)1引言气候变暖对农业影响的研究是当前特别引人关注,且意义深远的一个新兴科研领域。因为人类活动产生的温室气体排放将引起明显的气候变暖,进而对整个社会的经济发展。特别是农业生产的持续发展和生态环... 相似文献
3.
4.
5.
气候变暖对临沂农业的影响 总被引:1,自引:5,他引:1
对临沂 1961-2006 年的气候资料进行统计分析,深入的研究了气候变暖对临沂农业的影响.结果表明临沂市年平均气温明显上升,冬春季气温在波动中上升明显,夏季几乎无变化,临沂气温升高主要是最低气温升高所致,自 1990s 以来,暖冬现象十分严重;≥O℃的积温经历下降再上升的过程,近 16 a 来上升最明显;霜冻终日提前、初日推后,无霜冻期天数增多;临沂的春播期提前,秋播期推迟.农业气象灾害加剧.气候变暖对冬小麦生产利大于弊,对水稻、玉米生产不利.喜温作物面积扩大,复种指数提高,种植制度变为一年两熟制.气候变暖对临沂农业影响是利弊并存. 相似文献
6.
人类活动导致大气中CO2急剧增加。根据1990年的监测,其浓度已达353ppm(parts petmillion的缩写,意即百万分之几)。比工业革命时期(公元1750~1800年)增加近25%,高于16万年以来的任何一年。目前每年仍增加1.8ppm(相当于0.5%)。 相似文献
7.
选取河西走廊中部张掖市6县(区)1961~2006年日平均气温、日最低气温、年降水资料。计算历年各地气温、积温、无霜冻期和农业气候生产力,分析河西走廊中部气候变暖对农业生产的影响。结果表明:20世纪80年代末期以来,河西走廊中部气温呈持续升高趋势,1987~2006年的平均气温明显增高,且冬季升温幅度最为显著,秋季次之,春、夏季升温幅度较小;≥0℃和≥10℃积温增多,无霜冻期延长,气候生产力增加。80年代后期气候明显变暖,喜温作物面积扩大,复种指数提高,有利于冬季大棚蔬菜等设施农业的生产;干旱发生频率加大,病虫越冬存活率上升,导致农业生产成本增加。 相似文献
8.
气候变暖对云南烤烟生产影响的初步分析 总被引:1,自引:0,他引:1
通过对云南6个烤烟种植区35 a来烤烟大田生长期气温资料的初步分析发现:云南省6个烤烟生产区烤烟大田生长季平均气温呈明显升高趋势,热量条件有较明显的改善;各烟区烤烟成熟-采烤期气候变暖趋势一致性好、增温最突出、增幅最大,增温幅度达到了0.0155~0.0356 ℃/a,这在一定程度上缓和了云南省烤烟生产过程中烤烟生长中、后期高温不足这一制约云南烤烟品质提高的气候瓶颈问题,对提高云南省烟叶品质有十分重要的促进作用. 相似文献
9.
通过对云南6个烤烟种植区35 a来烤烟大田生长期气温资料的初步分析发现:云南省6个烤烟生产区烤烟大田生长季平均气温呈明显升高趋势,热量条件有较明显的改善;各烟区烤烟成熟—采烤期气候变暖趋势一致性好、增温最突出、增幅最大,增温幅度达到了0.0155~0.0356℃/a,这在一定程度上缓和了云南省烤烟生产过程中烤烟生长中、后期高温不足这一制约云南烤烟品质提高的气候瓶颈问题,对提高云南省烟叶品质有十分重要的促进作用。 相似文献
10.
近40年铁岭气候变暖的主要特点及对农业生产的影响 总被引:2,自引:0,他引:2
对本世纪40a铁岭市各季节气候分析,得出铁岭市气候变暖特点:春、秋、冬季增暖明显。夏季增暖缓慢。增暖使农业气候环境发生变化,并对农业生产产生重大影响。分析结果表明,气候变暖对铁岭市农业生产有利。 相似文献
11.
Based on the China Rural Statistical Yearbook of 1984-2003 published by State Statistics Bureau,and the annual temperature in the same period,impacts of temperature change,agricultural input,and planting area on grin production were analyzed for different regions of China during the last 20 years.The results show that the main characteristic of climate warming has obviously promoted the increase of grain yield in Northeast China.but to some extent suppressed it in North China,Northwest China and Southwest China,and shown no obvious effect on it in East China and Central-South China.The increase in agricultural input facilitated the grain production obviously in various regions in the early stage of the past 20 years,but showed no obvious effect in the late stage.The continuous reduction in sown area had a significant negative effect on the grain production in East China and Central-South China. 相似文献
12.
Based on the China Rural Statistical Yearbook of 1984-2003 published by State Statistics Bureau, and the annual temperature in the same period, impacts of temperature change, agricultural input, and planting area on grain production were analyzed for different regions of China during the last 20 years. The results show that the main characteristic of climate warming has obviously promoted the increase of grain yield in Northeast China, but to some extent suppressed it in North China, Northwest China and Southwest China, and shown no obvious effect on it in East China and Central-South China. The increase in agricultural input facilitated the grain production obviously in various regions in the early stage of the past 20 years, but showed no obvious effect in the late stage. The continuous reduction in sown area had a significant negative effect on the grain production in East China and Central-South China. 相似文献
13.
气候变暖对呼和浩特地区自然物候的影响 总被引:2,自引:0,他引:2
分析了1982—2007年气候变暖对内蒙古呼和浩特、武川自然物候的影响,结果表明:①春季,土壤表层解冻呼和浩特晚于武川,其余物候呼和浩特早于武川;秋季物候均为武川早于呼和浩特。且两地物候间距均为"豆雁始(绝)见>气象水文物候期>植物始花(落叶)";两地植物物候间呈显著的正相关,豆雁始(绝)见呈显著负相关,气象水文物候期间相关不显著;②两地年、春、秋季平均气温呈增加趋势,植物物候春季提前,秋季延迟趋势显著,与气温有很强的响应关系;豆雁在呼和浩特始见提前,绝见延迟,武川与此相反,豆雁与气温有一定的响应关系;气象水文物候期也具有春季提前,秋季延迟的趋势,与气温相关不显著。 相似文献
14.
15.
16.
全球气候变暖目前已经成为人类越来越关注的社会问题。气象观测结果表明,2007年2月,中亚和东亚、欧洲大部、白令海峡及其附近地区、阿尔及利亚和澳大利亚大部气温明显偏高2℃以上,其中东亚部分地区和白令海峡附近地区显著偏高4℃~9℃。2006年冬季,我国大部地区气温较常年同期(-4.3℃)偏高1.9℃,为历史同期第二高值,其中黑龙江、吉林的部分地区偏高达4℃~6℃, 相似文献
17.
18.
In the 20 th century, Eurasian warming was observed and was closely related to global oceanic warming(the first leading rotated empirical orthogonal function of annual mean sea surface temperature over the period 1901–2004). Here, large-scale patterns of covariability between global oceanic warming and circulation anomalies are investigated based on NCEP–NCAR reanalysis data. In winter, certain dominant features are found, such as a positive pattern of the North Atlantic Oscillation(NAO), low-pressure anomalies over northern Eurasia, and a weakened East Asian trough. Numerical experiments with the CAM3.5, CCM3 and GFDL models are used to explore the contribution of global oceanic warming to the winter Eurasian climate. Results show that a positive NAO anomaly, low-pressure anomalies in northern Eurasia, and a weaker-than-normal East Asian trough are induced by global oceanic warming. Consequently, there are warmer winters in Europe and the northern part of East Asia. However, the Eurasian climate changes differ slightly among the three models. Eddy forcing and convective heating from those models may be the reason for the different responses of Eurasian climate. 相似文献