Landscape pattern and fragmentation of natural secondary forests in the eastern mountainous region, northeast China: A case study of Mao'ershan forests in Heilongjiang Province

Abstract

Mao'ershan region is a representative natural secondary forested region in the eastern mountainous region, northeast of China. Under the support of ARC/INFO and GIS technology, the landscape shape and fragment indices of Mao'ershan experimental plantation were studied by combining the forest type map (1∶10000), which was drawn from the aerial photographs (1999), field investigation (1999) and soil utilized map (1∶10000). The results showed that the shape index and shape fragment index of natural landscape were higher than those of artificial landscapes and landscape patch fragment index depended on the number of patches. The natural forest had complex shape, suffering little jamming, and its shape index was higher than that of artificial forest. The manual controlled landscape (e.g. nursery, cropland and cutting blank) had regular shape, and its shape index was smaller. The fragment index of patches in natural forest was higher than that of artificial forest. The soft broad-leaved had the highest fragment index of patch amount.

Keywords

Landscape / Patch / Shape index / Fragment index / S759.92 / A

References

[1] Bu R.C., Wang X.L., Xiao D.N. Analysis on landscape elements and fragmentation of yellow river delta [J]. Chinese Journal of Applied Ecology, 1999, 10(3): 321-324. (in Chinese)

[2] Chen L.D., Fu B.J. Analysis of impact of human activity on landspace structure in yellow river delta: a case study of Dongying region [J]. Acta Ecologic Sinica, 1996, 16(4): 337-344. (in Chinese)

[3] Li H.B., Wu Y.G. The quantitative methods in landscape ecology. Modern ecology monograph [M], 1992 Beijing: China Science and Technology Press 209 234 (in Chinese)

[4] Li S.J., Sui Y.Z., Sun Z.H. et al. Landscape pattern and diversities in the Maoershan Forest Farm in HeiLongjiangprovince [J]. Journal of Northeast Forestry University, 2004, 32(1): 14-17. (in Chinese)

[5] Mu B.J., Chen L.X., Ma K.M. et al. The landscape ecology principles and applications [M], 2001 Beijing: China Science Press 202-207.

[6] Nilsson C., Grelsson G. The fragility of ecosystems: a review [J]. Journal of Applied Ecology, 1995, 32: 677-692. in Chinese)

[7] Wang X.L., Bu R.C., Hu Y.M. et al. Analysis on landscape fragment of Liao he delta wetlands [J]. Chinese Journal of Applied Ecology, 1996, 7(3): 299-304. (in Chinese)

[8] Wang X.L., Xiao D.N., Bu R.C., Hu Y.M. Analysis on landscape patterns of liaohe delta wetland [J]. Acta ecologic sinica, 1997, 17(3): 317-323.

[9] Wiens J.A. Habitat fragmentation: island V landscape perspectives on bird conservation [J]. Ibis., 1994, 137: 97-104.

[10] Wu J.G. Landscape ecology-pattern, process, scale and grade, 2000 Beijing: High Education Press 100 109 (in Chinese)

[11] Yue D.P., Wang D.M., Zhao T.N. et al. Study on landscape pattern and ecology change in Beizang town, Daxing country, Beijing Journal of Beijing Forestry University, 1997, 19(2): 35-41. (in Chinese)