Study On Key-segment And Evaluation Of Natural Reserve For Ecology With A Case For Labagoumen Natural Reserve In Beijing

As a special area of nature ecosystem and biodiversity, Nature Reserve is the core area to protect biodiversity, and also a most important part of government environment protection policy and action according to the view of administration and economy. Besides protecting biodiversity, Nature Reserve also takes a important hole to maintenance the ecosystem and sustainable development. Even more include some consideration to social benefits and culture. As a special nature resource with ecological meaning, both the protection and the development of nature reserve resource will be the consideration. Based on the past studied research, taking Labagoumen Nature Reserve as a test area, supported by the main data resource as Digital Elevation Model and geo-spatial data etc. and the spatial analyst technology including GIS and RS, a systematical summarization on the key ecological section of nature reserve to its feature and type is given, even more, its meaning and key indictor. Further more, the key ecological section is extracted by the computer system on the basis of ecological attribute and the spatial analyst technology. The eco-evaluation system of Labagoumen Nature Reserve is established, and the spatial rule and limit about protection and utilization in Labagoumen Nature Reserve is made a definitude. and more details below:(1)As a small-middle scale Nature Reserve which belongs to a land-mountain forestry ecosystem, its meaning and formation of the key eco-section was put forward;(2)The technique and methods system which make expert knowledge relate to spatial raster data were adopted and mended based on multi-factor weighted model which includes ecological attribute and geographic surface model etc.;(3)The structure key eco-section of this Nature Reserve was identified and extracted based on DEM and nature geographic factor of Labagoumen Nature Reserve; and the resource key eco-section on its ecological attribute. Moreover, the eco-evaluation system of labagoumen Nature Reserve is brought forward;(4)Making a study on putting the eco-evaluation index knowledge database of expert into spatial raster cell, by using spatial analyst module of ArcGis9.2 released by ESRI, the suitable level of eco-evaluation in this nature reserve was got through multi-layer raster map algebra operation.