Study on landscape classification and ecological restoration strategies of Shangyi county
Received date: 2007-05-09
Revised date: 2007-10-10
Online published: 2008-03-25
Supported by
国家自然科学基金资助(40671006;40471123)。
This paper discussed the principles and methods of landscape classification on the basis of related theories of integrated physical geography and landscape ecology. Based on the total differences reflected in the alteration and interaction of physical factors (such as climate, geomorphy, soil and vegetation) and human factors (such as land use) in Shangyi county, we take geomorphy and land use type as the key indicators to classify the landscape of this county. There are two interrelated ways of landscape classification: the "top down" division and the "bottom up" subsumption. Combining site of the two ways is the senior land unit: mestnost (land system) type, along with field verification. In this paper, the landscape classification hierarchic system is composed of two levels. At the first level, the county's landscape is divided into 8 categories, which are further divided into 23 sub-categories at the second level. The 8 landscape categories are: Grazing and farming landscape on the river and lank beaches; Farming, grazing and forest landscape in the low-relief terrains; Grazing, farming and forest landscape on the high plateaus; Grazing, forest and farming landscape on mountains on the edge of the high plateaus; Farming, grazing and forest landscape in the river valleys; Grazing, forest and farming landscape on the rocky hills; Grazing and farming landscape on the loess tablelands; Forest, grazing and farming landscape on the lightly eroded, middle sized mountains. Corresponded with the natural conditions and environmental problems of each landscape category, the ecological restoration strategies are proposed under the guidance of landscape planning theories and methods, which may act as reference for the environmental rehabilitation, ecological restoration and protective measures against environmental degradation.
Key words： landscape; classification; ecological construction; Shangyi county
MA Li, TANG Chong . Study on landscape classification and ecological restoration strategies of Shangyi county[J]. GEOGRAPHICAL RESEARCH, 2008 , 27(2) : 266 -274 . DOI: 10.11821/yj2008020004
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