Extended human activities are endangering the wild animals by shrinking their habitats which are degrading and vanishing. And those already extinct species serve as an alarm for our human beings that it is time to take stronger actions.
The conventional investigations are in-the-field ones conducted by investigators who base their work on topographic maps. While the disadvantages like large human cost, long working cycles, high laboring intensity and low efficiency make them unbefitting for the present demands of a market economy. Therefore, a fresh investigation method is in urgent need.
A Brand-New Ssolution
As a modern and competitive data accessing means, the RS technique provides a more advanced approach for environment livability assessment with advantages of massive and quick data acquisition and low cost. It poses as a vital means of eco-environment monitoring to elevate administration level of wild animals.
The high resolution of the Jilin-1 satellite imagery and its multi-spectral images can reflect the characteristics of habitat adaptability of wild animals.
RS, DEM (Dynamic Effect Model), and other basic geographic information are used as the basic analytical data.
Analytic hierarchy process and GIS （Geographic Information System） comprehensive evaluation are combined to analyze the vegetation status, geographical environment and human interference factors on the basis of eight selected indexes including vegetation types, coverage, altitude, gradient, direction, water source, residential areas and roads, to evaluate the habitat adaptability.
The living habits of Siberian tigers and leopards in northeast China are fully considered in this analysis.
Habitat Adaptability Spatial Distribution Map for Siberian Tigers in Hunchun City
(1) The northern Hunchun areas provide the most viable habitat for the Siberian Tigers, while the central and the southern corridors are on the contrary.
(2) Human interference and geographical environment are the key living factors of Siberian Tigers.
(3) The most-populated central downtown has narrowed the living habitat for Siberian Tigers.
(4) The narrow strip along the Hunchun River from the southwest to the northeast is also densely populated and affects the survival of Siberian Tigers.
(5) Vegetation and topography pose as key factors for the survival of the Siberian Tigers. Habitats with dense vegetation and water resources suits them the most.
We Can Do More
The adaptability evaluation refers to an impact evaluation of serial environmental variables on creatures. An accurate habitat suitability assessment of the regional environment serves as a dominant data source for agriculture, ecology, land use as well as other related aspects.