Predicting equations of main factors affecting regional climate in the “Three-North” protective forest area

Abstract

The relationship between the change of forest resources and climatic factor in the, “Three-North” region of China were studied in this paper. The predicting equations of climatic factor (dependent variable) with regional independent variable (longitude, latitude and altitude) and stand independent variable (forest coverage rate), were developed by extensively using the linear and nonlinear regression methods. With these models, we can calculate the ecological benefit of Shelter-belt forest.

Keywords

Three-North protective forest / Regional independent variable / Stand independent variable / Regression equation / Ecological benefit

References

[1] Caborn, J. M. 1975. Shelterbelts and Microclimate, Bull. For. Comm. (29)

[2] Gash, J.H.C. 1979. An analytical model of rainfall interception by forest. Quarterly Journal of Rya Meteorological Society,105 (443)

[3] Kong Fanzhiet al. 1990. Mathematical models of relationship between crown interception and precipitation. Journal of Applied Ecology,1 (3)

[4] Cheng lin Liang Construction of Three North Windbreaks in Jilin Province, 1987 Harbin: Northeast Forestry university Press

[5] Raine J. K. et al. Wind protection by model fence in a simulated atmospheric boundary layer J. Ind. Aerody, 1977, 2: 159-180.

[6] Jikun Shen Construction of Three North Windbreaks in Heilongjiang Province, 1989 Harbin: Northeast Forestry University Press

[7] Maki Taichi Studies on the windbreak nets J. Agr. Met. (Japan), 1985, 37(3): 197-210.

[8] Kaifu Xiang Windbreak research in west of Northeast China and east of Inner Mongolia, 1989 Harbin: Northeast Forestry University Prerss

[9] Peichang Zhang The Five Ecology Construction Project of Chinese Present Age, 1993 Beijing: Chinese Forestry Press

[10] Zhang Qinglianget al. 1983. Initial observation report on benefits of windbreaks. Jilin Forest Science and Technology (2)

[11] Junfeng Zhu Natural Data and Synthetic Agriculture Division of Three North Windbreaks Area, 1985 Beijing: Chinese Forestry Press