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Ecological Profit and Loss Analysis of Tidal Flat Reclamation——Tidal Flat Reclamation of Tiaozini Sand as a Case Study(PDF)

《南京师大学报(自然科学版)》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2012年02期
Page:
113-119
Research Field:
地理学
Publishing date:

Info

Title:
Ecological Profit and Loss Analysis of Tidal Flat Reclamation——Tidal Flat Reclamation of Tiaozini Sand as a Case Study
Author(s):
Wang JingXu MinZhang Yimin
School of Geography Science,Nanjing Normal University,Nanjing 210046,China
Keywords:
tidal flat reclamationecological service valueecological profit and lossTiaozini Sand
PACS:
S967;P748
DOI:
-
Abstract:
Reclamation and pond aquaculture is one of the main modes of tidal flat development,and showing a trend of large - scale factory aquiculture. The paper takes Tiaozini Sand reclamation in Jiangsu Province as an example,changes of the ecological service value and ecological profit and loss before and after reclamation are studied,by methods of economic evaluation and ecological emergy. By economic evaluation method and emergy method calculation,the ecological service value of Tiaozini natural wetland is 1. 28 × 104 yuan /hm 2·a and 1. 49 × 104 yuan /hm 2·a calculated respectively. The ecological service value of Tiaozini Sand is mainly embodied in the aspects of food supply and habitat services. The total ecological service value has no great difference before and after reclamation,is mainly due to great increase in aquiculture production and food supply service value increases significantly after reclamation,while the water purification, gas regulation,habitat and other ecological services value decrease significantly. The evaluation result of the paper provides a basis for scale selection and ecological compensation of Tiaozini Sand reclamation. The methods of analysis could be applied in rationality assessment of reclamation scale and ecological profit and loss,and determination of ecological compensation and construction measures.

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Last Update: 2013-03-11