Seasonal dynamics of aboveground biomass and nutrients of Kobresia tibetica meadow in Yellow River headwater area 黄河源区藏嵩草沼泽化草甸地上生物量及营养季节动态研究
It will lengthen as a result of headwater erosion and, thereby, will cut a valley through both hard and soft rock. 由于向源侵蚀的结果,它不断延长并且穿过软硬岩石从中切出一条河谷来。
In arid climates, surface water is generally better than ground water in headwater areas, but poorer downstream. 在干旱气候的上游区,地表水一般较地下水好,但下游的地表较差。
Headwater acidification is still a significant problem for important salmon fisheries, and special areas of conservation such as the Welsh River wye. 河流源头酸化依然是重要的鲑鱼水产业和特别保护区(例如威尔士怀尔河)面临的一个严重问题。
Study on Suitable Cutting Period of Cultivated Grassland in Black Beach of the Headwater Region of the Three River 三江源区黑土滩人工草地适宜刈割期的研究
Influential Factors of Vegetable Headwater Security and Systematic Tackling Measures 蔬菜源头安全威胁及其系统应对措施
The adsorption experiment of mesoporous complex adsorption material used for dislodging some organic pollutants in a slightly-polluted headwater 介孔复合吸附材料对微污染水源水中有机污染物的吸附试验
Changes in plant communities and soil microbial physiological groups of artificial grasslands established for different years in headwater region of Yangtze River and Yellow River 三江源区不同建植年限人工草地植物群落与土壤微生物生理类群的变化
Study on the Wetland Ecosystem Functions and the Characteristics of Surrounding Environment in Bayou Headwater Wetland of the Mudan River 牡丹江支流河源湿地环境特征与服务功能研究
Yellow River headwater area; Alpine meadow; Vegetation type; Species Diversity; Biomass; Soil nutrition; 黄河源区;高寒草甸;植被类型;物种多样性;生物量;土壤养分;
The eastern Qinghai Plateau is the headwater area for many large Asiatic rivers. 青藏高原东部是亚洲一些大河的发源地。
Analysis of trace arsenic in drinking headwater in Yanji City 延吉市饮用水源中微量砷的分析
Study on headwater conservation function of different tree species stands in Stony Mountain Area 石质山地不同树种幼林涵养水源功能的研究
With the development of the national economy of our country, among the hydraulic resources that can be developed in economic developed coastal area and plain area, power stations of high and middle headwater have been developed completely step by step. 随着我国国民经济的发展,在经济发达的沿海地区和平原地区可开发的水力资源中,中高水头电站已逐步开发完毕。
Study on Soil and Water Conservation Function of Main Vegetation Category Soil in Headwater Region of the Huangpu River 黄浦江源区主要植被类型土壤水土保持功能研究
Programming of protection forest for headwater conservation in Zhejiang Province 浙江水系中上游水源保护林资源管理系统规划
Studies on DCCA of the attached diatom community in headwater rivers of Fenhe Reservoir 汾河水库水源河着生硅藻群落的DCCA研究
Concerning the grassland functions on environment protection and water head conservation, the management of degraded grassland in the headwater areas of the Yangtze, Mekong and the Yellow River is highly related to the whole watershed's eco-security and economic development. 草地对环境和水源保护有重要作用,因此长江和黄河源头地区退化草地的治理与流域生态安全和经济发展关系密切。
Multi-headwater jointed dispatch is a focal point of water resource reasonable arrangment. 多水源联合调配是水资源合理配置的一个重点。
Conclusion: Water quality of the headwater is bad. 结论:该市农村水源水水质差。
The design considers the integral effect of the upstream headwater channel and downstream scout gallery. 本设计考虑了上游引水渠和下游冲沙廊道布置对漏斗水流整体的影响。
Moreover, this paper analyzes the relationship between two aspects of the degree& niche and the construction of headwater protection forest so as to hopefully provide scientific basis for the construction of headwater protection forest in Miyun Reservoir. 此外,还分析和评价了森林发展潜力度和森林发展生态经济位与水源保护林建设的关系,以期为密云水库集水区水源保护林建设提供科学依据。
Impacts of global warming on the eco-environment in the headwater region of the Yellow River 气候变暖对黄河源区生态环境的影响
An Analysis of Grassland Change and Human Factor Function in Headwater Region of Yellow River Based on NOAA-AVHRR Data 基于NOAA-AVHRR的黄河源地区草地变化与人文因素作用分析
Thearticle deepens the cognition about the rules of ecological change inthe headwater region of Yellow River, reduces blindness and providesscientific reference to layout of the region. 本文深化了对黄河源区水文生态环境变化规律的认识,减少了人们对源区环境变化认识上的盲目性,从而可以给我们统筹规划管理源区提供科学的依据。
In the end, that it is a key factor for our government to invest and educate people in the alpine pasturing area for long term for ecological construction in the headwater area of Yangtze and Yellow Rivers was emphasized. 强调国家向江河源区持续性投资和持久性加强牧区人民的文化教育是我国江河源区生态和经济建设的重要保证。
Based on NOAA-AVHRR data from 1992 to 2000, this paper studies the process and pattern of the grassland change in Headwater Region of Yellow River. 利用1992-2000年NOAA-AVHRR数据,研究了黄河源地区草地变化的过程和模式。
This study focuses on the upper reach of the Yangtze River, the upper reach of the Yellow River, and the headwater areas of major rivers in the Qilian Mountains within Gansu Province to understand the effect of forest coverage on soil and water loss. 以甘肃长江流域、黄河流域及内陆河源头地区的祁连山地等三大流域为对象,就水土流失区最佳防护效益森林覆盖率进行了研究。
Dongliao River watershed, as the headwater region of Liao River, the situation of water environment is imminent. Water scarcity and degraded water quality have posed great threat to the industrial and agricultural production, resident life and ecological environment in Dongliao River watershed. 东辽河流域做为辽河的源头区,水环境形势日益严峻,水质性缺水对流域内的工农业生产、居民生活和生态环境造成了严重的影响。
Evaluate the health status of headwater forest within the study area from the scale of standard area, the evaluation result is designed to provide theoretical reference for the sustainable management of headwater forest in the water district in typical regions of mountainous area in North China. 从标准地尺度对研究区域内的水源林健康状态进行了评价,评价结果旨在为华北土石山区典型区域水源区水源涵养林健康可持续经营提供理论参考。