1) the middle reaches of Jinghe River
径河中游
2) middle reaches of the Heihe River
黑河中游
1.
Based on characteristics of the eco-environment in the middle reaches of the Heihe River and PSP model,9 evaluation index systems that reflect eco-environmental frangibility while being isolated from each other were selected to form a model for integrated evaluation of eco-environment fragility of the studied area using the matter-elements theory and information entropy.
针对黑河中游生态环境特点,基于PSR模型,选取9项能反映其生态环境脆弱性而彼此之间相互独立的评价指标体系,采用物元可拓理论和熵权法构建生态环境脆弱性的综合评判模型,对黑河中游各地区生态环境脆弱性进行了评价。
2.
A major monitoring area was selected in Jinta of the middle reaches of the Heihe River .
利用 1990年和 2 0 0 0年的TM遥感资料 ,在经过定标、几何校正和图像增强等图像处理的基础上对土地覆盖类型进行解译 ,从而实现黑河中游金塔地区的生态环境遥感动态监测 。
3.
Based on the long-term hydrologic observations in study area,the model of the estimation of groundwater budget at the representative irrigation area in the middle reaches of the Heihe River was established in this paper.
根据对研究区多年的水文地质观测资料的分析和研究,建立了黑河中游典型灌区地下水水资源总均衡模型,选取了黑河干流具有代表性的平川、板桥、鸭暖和蓼泉灌区,对地下水均衡模型中的补给项及排泄项的主要变量分别进行了估算,结果表明:各灌区均衡期内地下水动态资料计算的均衡期始末地下水储存量变化与模型计算的均衡差基本相近,其相对误差为-17。
3) middle reaches of Heihe River
黑河中游
1.
Temporal and spatial distribution of soil organic carbon under different land uses in the middle reaches of Heihe River
黑河中游不同土地利用类型下土壤有机碳时空分布
2.
Based on experiments conducted in an intercropping field in Zhangye Oasis in the middle reaches of Heihe River in 2004,the characteristics of radiation budget are analyzed.
利用布设在黑河流域中游的张掖绿洲区的一套自动气象观测系统在2004年作物生长期内的完整资料,分析了黑河中游春小麦和玉米间作农田生态系统的辐射收支,在此基础上选用波文比能量平衡法(BREB)进行了能量平衡计算。
4) the middle reaches of Yellow River
黄河中游
1.
Analysis of the rainstorm and flood in Fugu at "July 30.2003"of the middle reaches of Yellow River;
黄河中游府谷“2003.07.30”暴雨洪水分析
2.
On the Establishing Time of the Early China in the Middle Reaches of Yellow River According to Shiji·Wudi Benji;
读《史记·五帝本纪》论黄河中游早期国家形成的时间
3.
The periodicity and encounter probabilities of midsummer drought in the middle reaches of Yellow River were analyzed using the methods of maximumentropy spectrumanalysis and wavelet analysis according the midsummer drought index of the middle reaches of Yellow River and its sections from 1955 to 2002.
本文利用黄河中游及其分区1955~2002年盛夏干旱指数资料,采用最大熵谱分析和小波分析方法,对黄河中游盛夏干旱变化的周期性特点和各分区不同干旱等级之间的遭遇概率进行了统计分析。
5) the middle reaches of the Yellow River
黄河中游
1.
Sediment yield and delivery in the middle reaches of the Yellow River basin, especially at the loess hill and gully areas, is a primary cause of rapid bed accretion at the lower reaches of the Yellow River.
黄河中游,尤其是以黄土丘陵沟壑区为代表的那些多沙区的侵蚀产沙是引起黄河下游河道严重淤积的主要原因。
2.
There have been abundant research results on sediment variation in the middle reaches of the Yellow river.
自 2 0世纪 80年代起 ,有关黄河中游地区泥沙变化的研究已取得了丰富的成果。
6) middle reaches of the Yellow River
黄河中游
1.
Environmental change and disasters in middle reaches of the Yellow River in history:influence on migration and development of capital;
古代黄河中游的环境变化和灾害——对都城迁移发展的影响
2.
Formation mechanism of interior drainage areas and closed drainage areas of the Ordos Plateau in the middle reaches of the Yellow River, China based on an analysis of the water cycle;
黄河中游鄂尔多斯高原内流区与闭流区的形成机理——基于水循环的分析
3.
综述了黄河中游水质化学若干问题的研究动态,例如,表观络合容量,条件稳定常数,液-固分配作用,离子交换pH范围和等温线。
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