Response of Dongting lake system function was discussed under water and silt process change and the following viewpoints were derived. First of all, Dongting Lake is a macro-system composed of morphological system, ecological system and service system. Secondly, water and silt changes resulted in several responses phenomenon such as the deformation of lake basin framework, shrinkage of lake area and volumes, instability of biodiversity, shorter shipping mileage, decrescence of water environment purification capability, weakening of microtus fortis and Oncomelania, and decreasing in fishing output and water resource. Finally, there existed a coupling relationship between the change of water and silk process and various lake system functions at different levels and in different space (the whole and the parts) and time (short-term and long-term). Some characteristics about hierarchy relevance, spatio-temporal difference, corresponding causality and mutual interdependency were shown.
OU Chao-min, Li Jing-bao, Yu Guo, Yang Yan, Deng Chu-xiong, Zhang Lei
. Response of Dongting Lake’s System Function Under Changed Water and Silt Process[J]. SCIENTIA GEOGRAPHICA SINICA, 2011
, 31(6)
: 654
-660
.
DOI: 10.13249/j.cnki.sgs.2011.06.654
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