Changes of suspended particulates adhering to salt marsh plants

LI Hua; YANG Shi-lun

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LI Hua, YANG Shi-lun. Changes of suspended particulates adhering to salt marsh plants[J]. Haiyang Xuebao, 2010, 32(1): 114-119.

Citation:

LI Hua, YANG Shi-lun. Changes of suspended particulates adhering to salt marsh plants[J]. Haiyang Xuebao, 2010, 32(1): 114-119.

LI Hua, YANG Shi-lun. Changes of suspended particulates adhering to salt marsh plants[J]. Haiyang Xuebao, 2010, 32(1): 114-119.

Citation:

LI Hua, YANG Shi-lun. Changes of suspended particulates adhering to salt marsh plants[J]. Haiyang Xuebao, 2010, 32(1): 114-119.

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Changes of suspended particulates adhering to salt marsh plants

State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China

Received Date: 2009-04-13

Abstract

Abstract

To understand the difference of suspended particulates adhering to tidal marsh plants, the mass of particulates adhering to three species of marsh plants was measured in the Changjiang Delta. The results are as follows:(1) The mass of suspended particulates adhering to plants growing on unit land area decreases at a rate of 1%~3%/m with distance from outer marsh edge or tidal creak where a suspended sediment content is higher; (2) the mass of suspended particulates adhering to plants decreases from the lowest stem section upward to the end of plants, and the mass of suspended particulates adhering to the lowest 5~10 cm stem of distance from marsh surface is more than one third of the total; (3)the mass of suspended particulates adhering to Spartina alterniflora is greater than the mass of suspended particulates adhering to Phragmites australis and Scirpus mariqueter , because the biomass of S.alterniflora is greater than the biomass of P. australis and S.mariqueter, however, the mass of suspended particulates adhering plants for unit plant biomass is the highest for S. mariqueter and the lowest for P. australis , and between the above-mentioned two for S. alterniflora ; (4) the seasonal change in mass of suspended particulates adhering to marsh plants can be significant. The mass of suspended particulates adhering to S. mariqueter in September was six times more than that in May. In winter, this pioneer plant withered and was washed away by tidal water, and thereby lost its ability to trap suspended particulates. It was concluded that the mass of suspended particulates adhering to marsh plants is determined by the plant biomass,the suspended particulate content and submerged conditions (the relative importance of elevation and tidal range).
- salt marsh,
- vegetation,
- suspended particulate,
- intertidal zone,
- Changjiang Estuary

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References(18)

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