1) arid and semiarid area
干旱半干旱地域
1.
Some existing problems of water resources utilization in irrigation district in arid and semiarid areas in China were analyzed,and the importance of raising the combined utilization of water resources were discussed and the advanced studies on irrigation water resources utilization and irrigation economy and irrigation ecological environment and social benefit were overviewed.
分析了我国干旱半干旱地域灌区水资源利用中存在的问题 ,论述了干旱半干旱地域提高灌区水资源综合效益的重要性 ,回顾了国内外在灌溉水资源利用效益、灌溉经济效益、灌溉生态环境效益以及灌溉社会效益方面的研究进展 ,提出了干旱半干旱地域灌区需要研究的几个问题。
2) drought
干旱
1.
Research of Vegetation Supply Water Index to Monitoring of Drought;
利用植被供水指数法监测干旱的研究
2.
Impact of Drought on the Value of Littoral Wetland Ecological in the East of Cangzhou;
干旱对沧州东部滨海湿地价值的影响
3.
Impact of Extreme Drought on the Fluxes of CO_2, CH_4 and N_2O from Temperate Steppe Ecosystems;
极端干旱对温带草地生态系统CO_2、CH_4、N_2O通量特征的影响
3) Dry
干旱
1.
<Abstrcat>In dry sandstorm area,well water irrigation is a complicated system engineering,not only the measure on efficient water use was adopted,but also measures on the mode of water using to increase agricultural income in dry sandstorm area.
干旱风沙区井灌农业是一项复杂的系统工程,不仅在节约用水上采取措施,而且在如何高效利用水上更加需要合理的用水模式来提高干旱风沙区农业的收入。
4) aridity
干旱
1.
Affection of Aridity to Anatomical Structure on Apple Leaves;
干旱对苹果叶片形态解剖结构的影响
2.
Utilizing the agricultural aridity monitoring early warning and composite guarding skills on the Huang-huai plain,through demonstration,the multiple skills are performed in Puyang such as deep ploughing,straw overturning,seed drug-dressing,straw covering,irrigating limitedly,spraying aridity-preventing drug and wheat hot-dry wind drug.
利用黄淮平原农业干旱监测预警与综合防御技术,通过示范,将深耕、秸秆翻压还田、药剂拌种、秸秆覆盖、有限灌溉、喷施防旱剂和防御小麦干热风制剂等技术在濮阳市进行综合推广。
3.
Using the data of temperature,precipitation,ground evaporation from 11 meteorological stations in the valley of the Yellow River and the Huangshui River within Qinghai Province(shortened for Hehuang valley) from 1961 to 2002,we analyzed the characters of meteorological element change and aridity variety.
利用1961—2002青海河湟谷地11个气象台站气温、降水等地面观测资料,对该区气候要素的年代际变化特征及其干旱变化的成因进行了初步分析。
5) arid
干旱
1.
Problem And Strategies on Eco-environmental Construction of Arid And Semiarid Lands In Inner Mongolia Autonomous Region;
内蒙古自治区干旱半干旱地区生态环境建设问题与对策
2.
Analysis of the Pollution Characteristics of the Arid、Semiarid Area in Gansu Province;
甘肃干旱、半干旱地区尘类污染特征分析
3.
Primary study on arid dimension in Shi River irrigation districts;
史河灌区干旱度及其判定指标的初步探讨
6) Drought stress
干旱
1.
Effects of low-phosphorus and drought stresses on growth of wheat (Triticum aestivum);
低磷和干旱胁迫对小麦生长发育影响的研究初探
2.
Effects of drought stress on gas exchange and chlorophyll fluorescence characteristics in leaves of two pepper(Capsicum annuum L) varieties;
干旱胁迫对两种辣椒叶片气体交换和叶绿素荧光特性的影响
3.
In recent years, there has been increasing concern about the impacts of drought stress on terrestrial ecosystem productivity and the carbon cycle in the context of global change.
该文综述了干旱对陆地生态系统生产力的影响,分析了其影响机制,并总结了植被对干旱的响应与适应及其机理机制。
参考词条
补充资料：干旱
干旱
drought damage
台湾省资料暂缺御，又未能及时解决维持社会正常生产和人类生活所必需的最低限度的水资源而造成的一种缺水灾祸。不同研究领域和不同研究对象的干旱有以下不同涵义：①气象干旱。在一个时期内，水分供应持续低于气候上所期望的水分供给。干旱强度取决于水分亏缺量及其持续时间。②农业干旱。作物缺水不能满足正常生长所需要的水分。干旱强度取决于土壤不同深度含水量、作物种类、生长状况和生长期。根据作物受害的成因不同，可将农业干旱分为土壤干旱、大气干旱和生理干旱。土干旱土地龟裂ganhan干早(曲旧ught dall网罗)一个地区某段持续时间里，按照常规年景安排的人类活动受到缺水威胁所出现的旱象。早宙训具指出现比较严重旱象时，由于社会抗旱力不高或无力抵壤于旱是由于土壤缺水，植物根系吸收不到足够的水分补偿蒸腾消耗所造成的危害;大气干旱是空气十分干燥，并伴有一定风力，土壤虽不一定缺水，但由于蒸腾强烈，使植株供水不足而形成危害;生理干旱是不良的土壤环境条件使作物生理过程发生障碍，导致植株水分平衡失调而造成危害。③水文干早。地表水减少和地下水位明显降低或者河流流量显著减小而出现的旱象。④社会经济干旱。缺水对该地区的经济产生明显的不利影响。 干旱是水分亏缺缓慢累积的结果，属渐进性灾害。大气环流异常造成的干早，其影响面积往往较大。根据干早影响时间长短和特征，可分为长期干旱、季节性干早、临时干旱和隐蔽干旱。干旱是中国主要气象灾害之一，尤其对农业影响最大。根据历史记载，中国从公元前2肠年到1男9年的2155年中，发生早灾达1056次，平均两年一次。防御干早是中国防灾减灾的重要工作，根据干旱规律，调整农业结构、兴修水利，合理灌溉，平整土地，深耕改土，选育耐早品种，提高抗早能力、抑制蒸发和蒸腾、减少水分消耗、蓄水保墒和营造农田防护林等措施对于防早抗旱有明显效果。(安顺清)
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