Experimental apparatus and method for researching nutrient salt exchange flux of sediment layers
An experimental device and sediment technology, which are applied in the field of experimental devices for nutrient exchange flux in sediment layering, can solve the problems of long time to obtain interstitial water and inability to carry out interstitial water layer research, etc.
Inactive Publication Date: 2015-07-08
SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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Problems solved by technology
These methods take a long time to obtain interstitial water, and cannot carry out stratified research on interstitial water, so there are certain limitations.
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[0020] Such as figure 1 and figure 2 As shown, the experimental device for studying the exchange flux of nutrients in sediment layers includes a simulated container 1 with an open top. The simulated container 1 is transparent. It is a rectangular cylinder made of plexiglass, and its size is length×width×height=35cm ×30cm×50cm. Both sediment and overlying water are housed in the cuboid tank.
[0021] The lower part of the simulation container 1 is provided with a number of collection holes 3 equidistant along the height direction for sampling interstitial water at different depths of sediments. These collecting holes 3 have 5, and the distance between adjacent collecting holes 3 is 2cm, and the distance between the bottom collecting holes 3 and the cuboid cylinder bottom is also 2cm.
[0022] Since the interstitial layer deposits are in a non-illuminated environment under field conditions, in order to simulate this environment, the outer wall of the simulated container 1 is...
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The invention relates to an experimental apparatus for researching nutrient salt exchange flux of sediment layers. The experimental apparatus comprises a transparent simulation container, wherein a light-proof outer covering layer and a plurality of collecting holes are arranged at the bottom of the simulation container; the top end of the outer covering layer is not lower than the position of the collecting holes at the simulation container; each collecting hole is correspondingly matched with an interstitial water sampling device; the interstitial water sampling devices are connected with the collecting holes. The invention further relates to an experimental method for researching nutrient salt exchange flux of sediment layers. According to the invention, the simulation container is used to contain sediment and overlying water, and the outer covering layer is used to simulate the sediment environment without light. The interstitial water can be obtained from different layers of sediment through the collecting holes by the interstitial water sampling devices. Therefore, the sediment interstitial water layering research under laboratory conductions can be simply and conveniently performed by experimenters, so as to research the nutrient salt exchange flux of sediment layers. The experimental apparatus and the experimental method are suitable for researching nutrient salt exchange flux of sediment layers under laboratory conductions.
Description
technical field [0001] The invention relates to the research field of sediments in water, in particular to an experimental device and method for layered nutrient salt exchange flux of sediments. Background technique [0002] Sediment interstitial water is an important parameter for material exchange at the sediment-water interface. The interstitial water in the sediment will release various nutrients into the overlying water body. The composition of the interstitial water changes continuously with the increase of depth. The material change of the layer can understand the change of the whole water environment system. At the same time, the study of the material change of the different layers of the interstitial water is also equivalent to the study of the nutrient exchange flux of the sediment layer. [0003] The main method to obtain sediment interstitial water is to directly collect sediment in the field, and then collect interstitial water after bringing it back to the labo...
Claims
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IPC IPC(8): G01N1/10G01N1/14G01N1/16
Inventor 乔培培陈丕茂李娜
Owner SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI