1998年长江干流洪水初步分析     

刘志雨  章四龙 《防汛与抗旱》1998,(4):35-38,41

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洪湖市长江干堤燕窝八十八潭堤段重大管涌险情的成功抢护     

《防汛与抗旱》1998,(4):142-142,146

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湖南水资源保卫战     

陈雪骅  ;秦楼图 《湖南地质》2009,(11):36-39

哪怕放在世界地图的版块中,湖南给世人的印象也绝对是一个水资源丰富的所在。其名称的由来——＂位于长江中游以南,洞庭湖以南＂的地理位置,天生就与水资源密不可分。但恰恰是这样一个看似水资源丰富的省份,近年来却频现水荒。  相似文献   

标杆——黑龙江省国土资源执法监察鸡西现场会掠影     

关伟 《黑龙江国土资源》2007,(8):19-19

一年前，鸡西市国土资源执法监察局人员整体素质还处于中下游水平，一年后的今天，这个局通过扎实深入的开展学习型执法监察局建设活动，一下跨进了全省的先进行列。[第一段]  相似文献   

Nutrient composition and distributions in coastal waters impacted by the Changjiang plume   总被引：1，自引：1，他引：0  

WANG Xiulin  WANG Baodong  ZHANG Chuansong  SHI Xiaoyong  ZHU Chenjian  XIE Linping  HAN Xiurong  XIN Yu  WANG Jiangtao 《海洋学报(英文版)》2008,27(5):111-125

Four cruises were conducted during 2002--2003 in the Changjiang Estuary and adjacent coastal areas. The data presented show a clear coast to open sea gradient in nutrients related to the river inputs. Maximum values of chlorophyll a were typically observed at intermediate salinities at surface water and coincided with non-conservative decreases in nutrients along the salinity gradient, indicating that removal of nutrients was related to phytoplankton uptake. The seasonal variations of nutrient concentrations were just opposite to those of chlorophyll a, indicating that the seasonal variations of nutrients were mainly controlled by phytoplankton uptake, whereas riverine inputs merely weakened or balanced its extent. During the estuarine mixing, phosphate demonstrated some remobilization during all the four cruises; whereas both conservative and non-conservative behaviors for dissolved inorganic nitrogen and silicate were observed in the study area, indicating that both biotic and abiotic events may affect their behaviors during the estuarine mixing. Under the influence of freshwater inputs with high value of ratio of nitrogen to phosphorus, the estuarine and coastal waters impacted by the Changjiang plume were high （ 〉 30） in ratio of nitrogen to phosphorus, but rates of primary production were apparently not constrained by any kind of nutrient elements. However, the low （ 〈 1 ） ratio of silicate to nitrogen in most of the study area might be linked with the rapidly increasing frequency of harmful algal bloom （HAB） incidents in recent years in the coastal waters impacted by the Changjiang plume.  相似文献   

Numerical Simulation of Water Level Under Interaction Between Runoff and Estuarine Dynamics in Tidal Reach of the Yangtze River     

雷智鹢  张金善  孔俊 《中国海洋工程》2009,23(3):543-551

The Yangtze Estuary, the largest estuary in China, is under an obvious interaction between runoff and astronomical tide. The research on the interaction is very important for the exploitation and utilization of water resources in this area. A horizontal 2D hydrodynamic numerical model is established and verified in the present study with the modeling range from Datong to the Yangtze Estuary. Based on the comparison of high water levels under the interaction between different runoff and estuarine dynamics, s...  相似文献   

Adaptation management of mountain tourism service: the case of the source regions of the Yangtze and Yellow River     

Yiping Fang  Dahe Qin  Yongjian Ding  Jianping Yang 《山地科学学报》2009,6(3):299-310

Mountain areas are often rich in ecological diversity and recreational opportunities. Mountain tourism is thought to be an effective and important means for maintaining and expanding rural economies and, thus, improving the living conditions of rural societies. As mountain tourism service research is a professional field with several disciplines involved, a multi-disciplinary management pIatform is needed and it facilitates participation in sustainable mountain development by diverse stakeholders. With the source regions of the Yangtze and the Yellow River as a case study, this paper presents a conceptual framework for an adaptation management of mountain tourism services according to technical, policy, social and economic dimensions. The framework is based on a vulnerability assessment of mountain ecosystems, and can serve as a reference for the development of tourism service in other mountain areas.  相似文献   

湖南水资源保卫战     

陈雪骅  秦楼 《国土资源导刊(湖南)》2009,6(11):36-39

哪怕放在世界地图的版块中,湖南给世人的印象也绝对是一个水资源丰富的所在。其名称的由来——＂位于长江中游以南,洞庭湖以南＂的地理位置,天生就与水资源密不可分。但恰恰是这样一个看似水资源丰富的省份,近年来却频现水荒。  相似文献   

长江沿江地区化工产业空间格局演化及影响因素   总被引：1，自引：1，他引：1  

邹辉  段学军 《地理研究》2019,38(4):884-897

基于企业数据和空间计量方法,探讨了长江沿江地区2000—2013年化工产业空间格局演化及影响因素。结果表明：化工产业主要分布在上海市和江苏沿江地区;中上游部分地区化工产业呈现明显的增长势头,由3个主要热点区发展到20余个不同规模大小的分布热点,成为化工产业新兴“增长极”;城市主城区化工产业减少而远郊区县增加,分布热点变化也反映了化工产业“郊区化”“园区化”的过程;相对低端基础的行业呈现集聚趋势,其中肥料业集聚明显;相对高端精细的行业呈现扩散趋势,其中合成材料业分散化明显;地区化工产业增长受到环境规制、外商投资、交通区位等因素显著影响,外商投资和交通区位具有显著的促进作用,而环境规制呈现显著的抑制效果。  相似文献   

黄河中下游沿线城市水资源利用效率的时空演变及影响因素   总被引：2，自引：1，他引：2  

巩灿娟  徐成龙  张晓青 《地理科学》2020,40(11):1930-1939

采用超效率DEA模型、GIS空间分析方法、动态面板的系统GMM估计方法对2010—2017年黄河中下游沿线城市水资源利用效率时空格局及影响因素进行分析，结果表明：① 黄河中下游沿线城市水资源利用效率整体由2010年的0.70波动下降为2017年的0.67，且区域内70%以上的城市水资源利用效率变动趋势与其一致；② 黄河中下游沿线城市水资源利用效率呈“U”型区域两侧相对较高，中间区域相对较低的空间分布态势，且空间分布重心始终位于地理重心的北方；③ 环境规制、经济发展水平、产业结构优化、技术水平对水资源利用效率呈显著正向影响，农田水利设施建设、城镇化对水资源利用效率呈显著负向影响。研究结论可为黄河流域生态保护与高质量发展的推进提供决策支持。  相似文献