Nanjing Hydraulic Research Institute

Qiuwen Chen

Jianyun Zhang

Yuqing Lin

Liuming Hu

Tiesheng Guan

Cheng Chen

Yuchen Chen

Honghai Ma

Yingxin Hong

Wenqing Shi

Zhiyuan Wang

Haoyu Zhu

Dongsheng Liu

Wei Jiang

Qi Zhang

Li Wang

Yong Gao

Lei Tang

Juhua Yu

Ranran Feng

Tianqi Yao

Wenyong Yu

Xueke Liao

Yuxin Zhang

Hanlu Yan

Ruxia Qiao

Disclosed is a method for determining an ecological flow process and a water temperature process of habitat requirements throughout a life history of fish, the method performs a two-factor crossover experiment with different water temperatures and flow velocities for fish in different life history stages, makes fitting according to experimental data to obtain curved surfaces of two-factor interaction relationship between fish in the different life history stages, water temperature, flow velocity, and obtains suitable water temperatures and flow velocities for fish in the different life history stages according to the curved surfaces of two-factor interaction relationship, and then determines ecological flow process and water temperature process of habitat requirements throughout a life history of the fish.

Method for determining ecological flow process and water temperature process of habitat requirements of full life history of fish

It discloses a method for preparing a magnesium-aluminum hydrotalcite-loaded nano zero-valent iron material for specifically removing perfluorooctanoic acid in a water environment and an optimized process for removing perfluorooctanoic acid thereby, and relates to the technical field of removing persistent organic pollutants in water using adsorption method and oxidation-reduction method and, in particular, to a composite material prepared by loading a nano zero-valent iron on magnesium-aluminum hydrotalcite using liquid phase reduction method.

Magnesium-aluminum hydrotalcite-loaded nano zero-valent iron composite material, method for preparing same and use thereof

A water-soil interface physiochemical monitoring apparatus and a reservoir area hydro-fluctuation belt monitoring system based on the same. The water-soil interface physiochemical monitoring apparatus comprises a cylindrical shell, a conical head, a sensor data acquisition circuit, a sealing plug, and a plurality of sensor modules. One end of the cylindrical shell is in sealing connection with the conical head, and the other end is sealed by the sealing plug. The sensor modules are connected to the sensor data acquisition circuit, and are all located in the sealed space of the cylindrical shell. Each sensor module comprises a circuit board, a temperature sensor, a dissolved oxygen sensor and a conductivity sensor, which are combined together by casting using resin, and the temperature sensor, the dissolved oxygen sensor and the conductivity sensor are separately connected to the circuit board.

Water-soil interface physiochemical monitoring apparatus and reservoir area hydro-fluctuation belt monitoring system based on same

A experimental device is specifically an annular water tank formed by a first arc-shaped water tank, a first special-shaped water tank, a second arc-shaped water tank and a second special-shaped water tank which are sequentially connected head to tail, and the outer perimeter is 70 m to 110 m, wherein the inner walls of both the first special-shaped water tank and the second special-shaped water tank are flat, both of the widths between the outer walls and the inner walls are gradually increased from the two ends to the middle, and water flow pushing equipment which are capable of enabling the maximum water flow velocity in the experimental device to reach a preset value are respectively placed in the first special-shaped water tank and the second special-shaped water tank.

Experimental device and experimental method for studying quantitative relationship between spawning of parent fish and stimulation of flow velocity

An ultra-deep reservoir stratified water sample and sediment core integrated artificial intelligence sampling device, comprising a sampling device main chamber, an attitude balance sensor, a propeller, a balance base, and a sampler body, wherein the attitude balance sensor and the sampler body are disposed inside the sampling device main chamber; the propeller is disposed outside the sampling device main chamber; and the balance base is located at a bottom end of the sampling device main chamber. The sampling device of the present invention is an intelligent sampling device integrating high-definition underwater topography observation, undisturbed sediment core collection, vertical stratified accurate sampling of water bodies, and real-time in-situ monitoring of key physical and chemical parameters, and can be flexibly applied to deep and shallow water environments under complicated conditions.

Intelligent device for integrated sampling of layered water and sediment core of deep reservoir

An experimental system comprises a water level indicator, a data processing module, and an experimental simulator. The water level indicator is connected to the data processing module, and the water level indicator is mounted nearby the experimental simulator when in use. The experimental simulator comprises several experimental units. Each experimental unit comprises a first pipe, a second pipe, and a third pipe, wherein the first pipe perpendicularly communicates with the second pipe, a check valve which allows water to flow out but allows no water to flow in is connected to the water outlet of the second pipe, and the third pipe perpendicularly communicates with the second pipe and is parallel to the first pipe. The heights of the third pipes of the several experimental units are in a decreasing or increasing order.

Experimental system and method for in-situ simulating different flooding-drying frequencies of shore zones

A method for controlling the gate based on the habitat requirement for fish overwintering in rivers. According to the characteristics of biological habitat of the river and the habitat demand of fishes during overwintering, the method specifically comprises the steps of: firstly, determining candidate fishes for ecological flow calculation though fish resources investigating and historical data, and then screening out the target fish by adopting hierarchical analysis method; Secondly, establishing a quantitative response relationship curve between target fish physiological adaptions and water temperature, obtaining ecological water level which ensures the target fish overwintering safely according to the vertical temperature distribution, and establishing the relation between water depth and discharge using hydrodynamic model; finally, setting up a gate control system including a radar water level meter in the overwintering areas and an ecological water level management system in a gate control room.

Method for controlling the gate based on the habitat requirement for fish overwintering in rives

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Nanjing, China

Qiuwen Chen