井冈山森林对区域生态环境的影响

摘要/Abstract

摘要： 根据井冈山林区近年来的森林资源、气候、水文、大气等效据资料,采用典型相关分析与多元线性逐步回归分析相结合的综合分析方法,分析了森林对区域水质、大气、气候等环境的影响,确定了受森林影响的主要气候、大气质量及水质因子,并建立了拟合经验方程.研究表明,森林蓄积量对最大日降雨量、极端最高气温、大气中SO₂浓度及河流中的COD_cr与氨氮含量有显著影响.增加区域内的森林蓄积量,可以降低区域内的最大日降雨量及极端最高气温,减少大气中的SO₂浓度及河流水分中的COD_cr与氨氮含量.森林覆盖率对大气中的NO_x浓度及土壤侵蚀模数有显著影响.增加区域内的森林覆盖率,可以降低大气中的NO_x浓度,减少土壤流失量.

关键词: 森林, 生态环境, 井冈山林区

Abstract: Based on the late years' data of forest resources,climate,hydrology and atmosphere in Jinggang Mountain region and by the methods of canonical correlation analysis and multiple linear stepwise regression,this paper analyzed the influence of forests on the climate,water quality and atmosphere of this region.The results showed that forest volume had an evident effect on maximum daily precipitation,extreme highest air temperature and atmospheric SO₂ concentration,and on COD_cr and ammonic nitrogen contents in river water.The greater the regional forest volume,the less maximum daily precipitation and the lower extreme highest air temperature,atmospheric SO₂ concentration and water COD_cr and ammonic nitrogen contents.Forest cover percentage could remarkably affect soil erosion modulus and atmospheric NO_x concentration:the two latter were decreased as forest cover percentage increased.These results will provide theoretic foundation for the evaluation of the environmental value and ecological benefit of forest.

Key words: Forest, Ecological environment, Jinggang Mountain forest region

中图分类号:

S718.5

钟全林. 井冈山森林对区域生态环境的影响[J]. 应用生态学报, 2004, (8): 1463-1467.

ZHONG Quanlin. Effect of Jinggang Mountain forests on regional ecological environment[J]. Chinese Journal of Applied Ecology, 2004, (8): 1463-1467.

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