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城市近郊林的减少率预测及保护对策

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2007年03期
Page:
125-128
Column:
论坛
publishdate:
2007-03-20

Article Info:/Info

Title:
Studies on Deforestation Prediction of Urban Forests and Preservation Strategies
Article ID:
1000-2006(2007)03-0125-04
Author(s):
GUAN Qing-wei1 UEKI Tatsuhito2
1. Key Laboratory for Forestry Ecological Engineering Jiangsu ProvinceNanjing Forestry University. Nanjing 210037. China; 2. Shinshu University, Nagano. 399--45980Japan
Keywords:
Metropolises Urban forests Deforestation rate Preservation straiegics Japan
Classification number :
S718
DOI:
10.3969/j.jssn.1000-2006.2007.03.029
Document Code:
A
Abstract:
Forest statistica! data, agriculture and forestry census data from 1960--19, 95 and mathematical model F/N=a ?exp(p (N/S)), (where F is forest area, N is population, S is city area, a and p are parameters), are employed to predict the urban forest decrease in Kanagawa prefecture Japan. The results show that per capita forest area is decreased because of the increase of population. If the population is increased by 10%, the per capita forest area will be decreased from 1%to 92%. Most of validation coefficients in different cities are over0.9, that means calculation results are very accurate, lnorder to prevent the decrease of urban forest and reduce the preservation cost, based on the deforestation rates and financial status of different governments, we suggest that Japanese governments should purchase the forests, forest land, and monitor the forest land conversion in a long term. These preservation strategies are useful for developing countries, such as P.R. China.

References

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Last Update: 2013-05-20