1)drying trend of north China北方干旱化
1.This maybe one of the main reasons for the drying trend of north China.该突变与厄尔尼诺和南方涛动(ENSO)综合指数联系紧密,可能是造成北方干旱化的重要原因之一。
英文短句/例句
1.EOLIAN ORIGIN OF THE RED CLAY DEPOSITS IN THE LOESS PLATEAU AND IMPLICATIONS FOR PLIOCENE CLIMATIC CHANGES黄土高原红粘土成因及上新世北方干旱化问题
2.Study on the Application of the Drought Indicators Over the Arid Areas in Northern China;中国北方干旱区干旱指标的应用研究
3.Studies on the Improvement of Degraded Grasslands in the Semiarid Regions of Northern China;中国北方半干旱区退化草地改良技术的研究
4.The Study of Geochemical Technology for Mineral Exploration in the Arid Gobi Desert Terrain, Beishan Mountains Area, Gansu;甘肃北山干旱荒漠景观化探方法技术研究
5.Correlation between the Carbon Isotope of Organic Matter and Magnetic Susceptibility in Topsoil and the Annual Precipitation in Arid and Semiarid Regions in North China;中国北方干旱半干旱区表土的有机质碳同位素、磁化率与年降水量的关系
6.Remote sensing information model of soil salinization in northwestern arid area of China西北干旱区土壤盐渍化遥感信息模型
7.Climatic changes of semi-arid region over the northwest China in recent 50a近50年来西北半干旱区气候变化特征
8.A Study on Microwave Drought Indices Using AMSR-E Data and Aplication in Hebei Province;AMSR-E数据监测干旱的方法研究及其在河北省干旱监测中的应用
9.Discipline of temporal and spatial variation of annual mean air temperature in arid and semiarid region in northwest China in the recent 46 years中国西北干旱半干旱区年平均气温的时空变化规律分析
10.Study on Evaluation Index System and Evaluation Methods in Agricultural Water-saving in Northeast Semi-arid and Anti-drought Irrigation Area of China;东北半干旱抗旱灌溉区节水农业评价指标体系和评估方法研究
11.Evaluation on the Technologies of Preventing Drought and Reducing Disaster in Semiarid and Subhumid Region of North China我国北方半干旱半湿润气候区防旱减灾技术述评
12.THE TEMPORAL AND SPATIAL CHANGE OF DROUGHT-FLOOD IN NORTHERN CHINA FOR THE LAST 50 YEARS;近50年我国北方地区旱涝的时空变化
13.Impacts of Land Use and Climate Change on Cultivated Land Potential Productivity in Farming-Pastoral Zone of North China干旱化与土地利用变化对中国北方草地与农牧交错带耕地自然生产潜力的综合影响评价
14.Research on the Application of Flood-forecasting Models in Semi-arid Regions of North China;洪水预报模型在北方半干旱地区应用研究
15.The Analysis of the Disasters Caused by Drought Innorthern China and the Research of Countermeasures to Reducing the Loss;我国北方干旱灾害性分析及减灾对策研究
16.Risk Assessment and Regionalization Study on Winter Wheat Drought in North of China;北方冬小麦干旱风险评估及风险区划研究
17.The Selecting of the Entomogenous Fungus, Beauveria Bassiana on Dendrolimus Tabulaeformis in North Dry Area;北方干旱地区油松毛虫致病性白僵菌的筛选
18.Studies on Dynamics of Polyphenols Content in Several Plant Materials in Northern Arid Region;北方干旱地区几种植物多酚含量动态研究
相关短句/例句
Arid region of North China北方干旱区
3)dry areas of North China北方干旱地区
1.Issues related to woodland and grassland construction in dry areas of North China and countermeasures;北方干旱地区林草植被建设存在的问题及对策
4)Arid region in North China中国北方干旱区
5)The semiarid mountain areas in the north北方半干旱山区
6)northern semi-arid area北方半干旱地区
1.Experimental study on loss of total phosphorus in brown soil in northern semi-arid area;北方半干旱地区棕壤总磷流失特点试验研究
延伸阅读
世界防治荒漠化和干旱日世界防治荒漠化和干旱日（world day to combat desertification） 2004年６月１７日是第十个“世界防治荒漠化和干旱日”。１９９４年１２月，第４９届联合国大会根据联大第二委员会（经济和财政）的建议，决定从１９９５年起把每年的６月１７日定为“世界防治荒漠化和干旱日”，旨在进一步提高世界各国人民对防治荒漠化重要性的认识，唤起人们防治荒漠化的责任心和紧迫感。荒漠化是指气候异常和人类活动等因素造成的干旱、半干旱和亚湿润干旱地区的土地退化。地球陆地表面极薄的一层物质就是土壤层，它对于人类和陆生动植物生存极为关键。没有土壤层，地球上就不可能生长任何草木、谷物，不可能有动物和人类的生存。荒漠化，就是土壤层土质恶化，有机物质下降乃至消失，造成表面沙化或板结从而成为不毛之地。荒漠化不仅造成贫困，而且迫使人们离开故土，造成严重可怕的移民浪潮。地球荒漠化和气侯变化与人类活动密切相关。人口迅速增长和贫困的加剧导致过度耕种、放牧和乱砍滥伐等行为日趋严重，从而加快了土地荒漠化速度。联合国最新统计表明，目前全球有近二分之一的陆地表面、１１０多个国家和１０亿以上人口深受沙漠化影响。非洲和亚洲是土壤荒漠化现象最严重的地区。在非洲，４６％的土地和４.８５亿人口受到荒漠化威胁。亚洲一半以上的干旱地区已受到荒漠化的影响，其中中亚地区尤为严重。土地荒漠化每年给全球造成的经济损失约４２０亿美元。我国是世界上荒漠化严重的国家之一，全国沙化土地面积约为１７４.３万平方公里，占国土总面积的１８.２％，超过全国耕地面积的总和。尽管近年我国土地荒漠化防治取得很大成绩，局部地区生态环境得到根本改善，但土地绿化赶不上沙化，“局部好转、整体扩大”的趋势仍未得到根本的改变，沙化的年扩展速度已由１９９４年前的２４６０平方公里扩大到目前的３４３６平方公里。全国４０亿亩天然草场也不同程度地出现退化和沙化。今年我国将“世界防治荒漠化和干旱日”的宣传主题确定为“防沙治沙与农民增收”，以使全国人民进一步了解、关心和支持荒漠化防治和防沙治沙工作，加快农民增收步伐，促进荒漠化地区全面、协调、可持续发展。
