ADCP在长江内河流量比测试验与精度研究

根据长江中下游主要控制河段采用ADCP测流方式，结合长江河流水沙特性、测站特征和水文测船等具体情况，通过野外比测试验，针对ADCP存在的“适宜性”和流量测验精度等问题，进行了较为全面、深入、细致的分析研究．提出了一套能使ADCP适应于长江内河河流特性、现有测船条件的流量测验方法、精度指标等成果，具有广泛的推广应用价值。     

太子河流域水资源优化配置供水模型

以追求经济、社会和环境效益的权衡为最优，建立了太子河流域水资源优化配置数学模型，并用多目标递阶动态规划法求解，以取得水资源优化配置的最佳方案．     

引滦工程黎河下游河道治理技术措施应用

针对引滦工程黎河下游多弯曲型河道采用的治理技术措施进行了初步的应用分析探讨，并通过对黎河下游高陡边坡防护中采用的模袋混凝土技术及软体排技术进行的深入开发应用，探索了黎河下游河道的治理方案．工程经过三年的引滦输水和汛期洪水的考验，实践证明：其技术应用合理，工程实施方便可行，发挥了新技术、新材料的优势，可推广应用到相关河道的治理工程上。     

Seasonal variation in the composition of the drift below a peaking hydroelectric project

We used 0.5 m diameter nets to sample the drift downstream from a peaking hydroelectric project on the Caney Fork River, Tennessee. The relative contribution of the terrestrial, lentic, and lotic environments to stream drift varied seasonally. Stream benthos (primarily Chironomidae and Lirceus fontinalis) occurred in the drift throughout the year; however, their relative importance varied seasonally. Daphnia sp. from the reservoir also occurred in the drift year round with the highest densities in fall and spring when they were the predominant species in the drift. In summer, terrestrial insects apparently utilized exposed portions of the river bed during periods of no power generation. In June as the river stage increased following initiation of generation, adult terrestrial insects became a major component of the drift. Threadfin shad (Dorosoma petenense) dominated the biomass in the drift during December. Although the importance of stream benthos to fish populations is generally recognized, the contribution of the terrestrial and upstream reservoir environments to the forage base in the tailwater may also be important and should be considered in developing management strategies for tailwater fisheries.     

河流系统健康体系及评价方法研究

考虑反映河流系统的动力状况、水质状况、河流地貌和生物指标状况、河流服务状况等4个方面，构建了河流系统健康体系。建立了基于模糊理论的河流健康状况多层次评价模型，给出了相应的评价指标、标准和权重。以海河三岔口河段为例，应用已建的河流系统健康状况模糊综合评价模型，对河流系统的健康状况进行了评价。结果表明，该评价体系能定量地从各层次分项指标和总体角度反映河流健康状况，可为河流管理和生态修复工程提供技术支持。     

北洛河流域水沙演变情势分析

北洛河是典型的多沙河流,是渭河泥沙的主要来源之一.通过对北洛河流域干支流主要控制水文站径流泥沙资料的统计分析,论述了北洛河流域泥沙的来源和沿程分配、输沙量的年内分配和年际变化、径流量和输沙量的关系以及泥沙形成原因等.对研究北洛河流域的水土流失和泥沙输移规律、合理地开发和利用提供了科学依据.     

长江经济带生态环境保护与经济高质量发展的耦合协调关系及其影响因素

以长江经济带为研究地区构建生态环境保护与经济高质量评价指标体系。利用耦合协调模型、Dagum基尼系数、核密度和固定效应模型探究耦合协调度的时空特征、区域差异、动态演进特征及影响因素。结果表明：1）2008-2020年两系统发展指数均呈上升趋势。2）耦合协调度仍处于较低水平，具体表现为沿海下游省市>中心省市>上游省市。3）区域间差异是总体差异的主要来源，并且绝对差异缩小，梯度效应减弱。4）经济发展水平、人口聚集程度、产业结构升级和城镇化水平对耦合协调发展具有显著影响。     

山区卵砾石河流的阻力：以龙溪河为例

山区卵砾石河流在西部山区广泛分布，其阻力关系是认识水流泥沙输移规律、模拟山洪演进过程的制约因素。通过在四川龙溪河的现场观测，获得了水力学、泥沙、地貌等要素的数据，分析了阻力系数与卵砾石特征粒径、坡降、流量、河床结构强度等参数的关系，检验了已发表的多个山区河流阻力公式的适用性。结果表明，由于山区卵砾石河流存在不同发育程度的河床结构以及卵砾石的部分可动性，阻力系数与山区河流的流量、坡降、河床结构发育程度参数等有密切关系；Rickenmann (1994)及Ferguson (2007)阻力公式在龙溪河具有较好的适用性。本文仅仅是山区河流阻力的初步成果，今后将进一步开展阻力关系的深入研究。     

Capability of TMPA products to simulate streamflow in upper Yellow and Yangtze River basins on Tibetan Plateau

Due to the high elevation, complex terrain, severe weather, and inaccessibility, direct meteorological observations do not exist over large portions of the Tibetan Plateau, especially the western part of it. Satellite rainfall estimates have been very important sources for precipitation information, particularly in rain gauge-sparse regions. In this study, Tropical Rainfall Measuring Mission （TRMM） Multi-satellite Precipitation Analysis （TMPA） products 3B42, RTV5V6, and RTV7 were evaluated for their applicability to the upper Yellow and Yangtze River basins on the Tibetan Plateau. Moreover, the capability of the TMPA products to simulate streamflow was also investigated using the Variable Infiltration Capacity （VIC） semi-distributed hydrological model. Results show that 3B42 performs better than RTVSV6 and RTV7, based on verification of the China Meteorological Administration （CMA） observational precipitation data. RTVSV6 can roughly capture the spatial precipitation pattern but overestimation exists throughout the entire study region. The anticipated improvements of RTV7 relative to RTVSV6 have not been realized in this study. Our results suggest that RTV7 significantly overestimates the precipitation over the two river basins, though it can capture the seasonal cycle features of precipitation. 3B42 shows the best performance in streamflow simulation of the abovementioned satellite products. Although involved in gauge adjustment at a monthly scale, 3B42 is capable of daily streamflow simulation. RTV5V6 and RTV7 have no capability to simulate streamflow in the upper Yellow and Yangtze River basins.