Results 61 to 70 of about 392 (126)
, 2001 在长江三峡地区古代历史人文发展、变迁的过程中，先秦时期的土著 巴蜀文化向汉唐以来的汉民文化的更替是最重要的民族史事件，汉民人口的大量迁 入与郡县级群落的形成、扩张是这一过程的主要内容。在峡江地区最新考古调查与 发掘资料中，重庆万州区武陵、朝阳３８处汉唐居址、墓地所构成的两个相对独立的群 落单位，就是武宁、源阳两故县人文聚落发展的考古学反映，为揭示峡江地区早期汉 ...
吴春明, 钟礼强
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[A long way for the popularization and improvement of burn rehabilitation]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi, 2022 Xie WG.
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三峡水库和长江中下游通江湖泊洞庭湖和鄱阳湖草鱼鲢的孵化日期及早期生长特征
, 2020 三峡水库以及上游江段形成的河库生态系统与长江中下游洞庭湖和鄱阳湖的江湖生态系统都是四大家鱼的重要栖息地,有相似性也有差异. 2017年7 8月在三峡水库、洞庭湖和鄱阳湖利用地笼、虾笼、高网和迷魂阵采集草鱼和鲢幼鱼样本,观测耳石日轮,分析三峡水库和通江湖泊草鱼和鲢幼鱼的繁殖时间和早期生长特征及差异,探讨相应的保护措施.结果显示,三峡水库、洞庭湖和鄱阳湖采集草鱼幼鱼的孵化日期分别为4月24日5月25日、5月21日6月26日和5月4日5月28日;鲢幼鱼的孵化日期分别为4月10日6月12日 ...
张文武 +4 more
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The Historical Evolution and Evaluation of Development Policies for Western China [PDF]
After the founding of P.R. China, China’s regional development strategy experienced the evolution progress of “Balanced Development→Unbalanced Development→Coordinated development”. There exist twice “GO-WEST” campaigns which laid the foundation of modern
Deng, Xiang, Lu, Zheng
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Combination of InSAR and neural networks for the deformation monitoring and prediction of Fanjiaping landslide [PDF]
Traditional methods for monitoring surface deformation of landslides have significant limitations, including small monitoring coverage, difficulty in acquiring information in complex terrains, and high economic costs.
Shuqiang LU +3 more
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Study on mechanism and prediction of bank collapse of complex terrace bank slope in southwest China: A case study of front bank collapse in Cizhong [PDF]
Taking the bank collapse in front of the Cizhong resettlement site of the Wunonglong Hydropower Station on the Lancang River as an example, this study analyzed the bank collapse mode and,causative mechanisms, predicted the width and elevation of the bank
Guanghong JU +5 more
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Shuitu Baochi Xuebao, 2004 通过对三峡库区重庆市缙云山4种典型植被类型(针阔叶混交林,阔叶林,楠竹林和灌木林)的林下枯落物的调查分析和进行枯落物持水过程研究,得到不同植被类型枯落物的持水特征。结果表明枯落物储量为灌木林>阔叶林>针阔混交林>楠竹林。枯落物最大持水深为灌木林>针阔混交林>阔叶林>楠竹林,其最大吸水率为针阔混交林>灌木林>阔叶林>楠竹林。在枯落物持水作用较强的前2h内,其吸水速率最快的为灌木林1.949mm/h,其次为针阔混交林和阔叶林,都为1.031mm/h,最小的为楠竹林为0.809mm/h。研究结果表明 ...
王云琦 王玉杰 张洪江 夏一平 肖江伟 吴云
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Value of metagenomic next-generation sequencing in children with severe infectious diseases. [PDF]
Zhongguo Dang Dai Er Ke Za Zhi, 2022 Zheng YH +6 more
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The water resource efficiency and water-saving effect of cascade hydropower development [PDF]
[Objective] The aim of this study was to reveal the pattern of change of water resource efficiency in cascade hydropower development, in order to improve the water resource efficiency of cascade hydropower development and promote water-saving development.
ZHANG Jin, DING Yajing
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Shuitu Baochi Xuebao, 2011 以三峡库区紫色土旱坡地为研究对象,采用野外径流小区观测方法,研究了三峡库区旱坡地不同坡度下土壤磷素的流失特征.结果表明,地表径流量和侵蚀泥沙量都随着坡度的增大而增大,且径流量和泥沙量是先增大后减小,最后趋于稳定.地表径流和侵蚀泥沙中磷素的流失量均呈l7°＞9°＞4°的趋势.地表径流中,颗粒态总磷流失量是水溶态总磷流失量的1.50～1.51倍.全磷主要吸附在泥沙中流失,磷素随泥沙的流失量占总流失量的85.0%～94.1%.研究结果为三峡库区旱坡地磷素的管理提供理论依据.
黄利玲, 王子芳, 高明, 季轶群
doaj