Energy analysis of ecological benefit in mangrove wetland—Case study of the Nineteenth Chong mangrove wetland in Nansha

Abstract

Abstract: The energy and material flux in addition to ecological benefits in the Nineteenth Chong mangrove wetland in Nansha of Panyu district,Guangzhou City were analyzed quantificationally with the energy analysis method of ecological economy system.The results showed that nummary value of the mangrove was $ 1.88?10⁴ in 2002,$ 22.78?10⁴ and $ 12.00?10⁴ for waterfowl and aquatic product,respectively.The total eergy input of wetland system was 17.96?10¹⁶sej,unrenewable 9.44?10¹⁶sej,while the total output was 31.28?10¹⁶sej.The energy analytical figures and tables indicated that the integrated rate of input/output of the mangrove wetland is reasonable with low input ($ 10.49?10⁴) but high output ($ 42.82?10⁴).Related suggestions were put forward.

Key words: Cotton, Fiber quality, Eco-factor, Quantitative relationship

CLC Number:

Q948.12

ZHAO Xinsheng, CUI Baoshan, YANG Zhifeng. Energy analysis of ecological benefit in mangrove wetland—Case study of the Nineteenth Chong mangrove wetland in Nansha[J]. cje, 2005, (7): 841-844.

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Energy analysis of ecological benefit in mangrove wetland—Case study of the Nineteenth Chong mangrove wetland in Nansha

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