headwater area中文什么意思
上游地区
- area: n. 1.面积；平地；地面。 2.空 ...
- headwater: 河流的源流; 河源段; 河源头; 上 ...
- control of headwater: 水源控制
例句与用法
- A study of the geological environmental of suprapermafrost water in the headwater area of the yellow river
黄河源区冻结层上水地质环境影响研究 - The paper introduces and amends the composite indexes of soil erosion intensity and regional soil erosion intensity and conducts quantitative analysis on spatial relationship of types of land use and soil erosion intensity of whole china territory , the middle and lower areas of liaohe river , headwater area of danjiangkou reservoir of south - north water transfer project of hubei part and 4 regions of huidong county in guangdong based on sum up of general study methods of spatial relationship of land use and soil erosion
摘要在总结土地利用与土壤侵蚀空间关系一般研究方法的基础上，引入并修正了土壤侵蚀强度综合指数和区域土壤侵蚀强度综合指数，时整个中国境内、辽河中下游地区、南水北调丹江口水库水源区湖北部分和广东省惠东县4个区域土地利用类型与土壤侵蚀强度空间关系进行了定量比较分析。 - The first geologic reason for degeneration of the eco - environment in the headwater area of the yellow river is that the increase of the recent geologic function caused desertification and grasslands resource decreased and underside changed , destroied the balance of water - air - heat in the area ; the second is that the water environment changes by the degradation and atrophy of frozen earth cause multilayer and synthesis cause of formation degeneration of the eco - environment ; the third is that the man and rats function accelerated degeneration of the eco - environment in the headwater area of the yellow river
摘要黄河源区生态环境恶化的地质原因之一是现代地质作用增强，形成以荒漠化为主的草地资源退化与下垫面改变，地区水气热平衡破坏；二是因冻土退化、萎缩，引起水环境变异，导致多层面与综合成因的生态环境恶化；三是人为及鼠类活动对源区生态环境恶化起著推波助澜的作用。
