摘要
研究了香樟(Cinnamomumcamphora)、大叶黄杨(Buxusmegistophylla)、杉木(Cun ninghamialanceolata)和马尾松(Pinusmassoniana)4种树木叶片中的钠、锰、铅、铁含量。将位于株洲市石峰区的中南林学院株洲校区分成7个约0.1km2的小区,用污染指数(IP)判断各小区的环境质量。按IP的大小,可将环境质量分成4级:IP<1.50为Ⅰ级(清洁区),1.50<IP<3.00为Ⅱ级(轻污染区),3.00<IP<4.50为Ⅲ级(中度污染区),IP≥4.51为Ⅳ级(重污染区)。各小区的污染指数有明显差异:东山、西山和樟树一村的污染达到了Ⅲ级,需要适当治理。提出了污染物来源的相关系数法,可说明污染物的主要来源。
Contents of Na, Mn, Pb, Fe in the leaves of four trees including Pinus massoniana, Cunninghamia lanceolata, Cinnamomum camphora and Buxus megistophylla were determined. The Zhuzhou campas of Central South Forestry University in district of Zhuzhou city has been divided into about 7 small areas each with an area of 0.1 km2. The environment qualities of the small areas have been judged with pollution index (IP) method. The environment qualities are classified into 4 grades according to the size of IP index --Ⅰgrade (clean areas) IP<1.50; Ⅱ grade (slightly polluted areas) 1.50 <IP< 3.00; Ⅲ grade (moderately polluted areas) 3.00 <IP< 4.50; Ⅳ grade (seriously polluted areas)IP≥4.51. Obvious differences could be found among the IP indexes of these small areas: pollution indexes of Dongshan, Xishan and Zhangshuyicun have come up to Ⅲ grade and need to be controlled. The paper puts forward the relevant indexes of the sources of pollutants and explains the main sources of the pollutants.
出处
《西北林学院学报》
CSCD
北大核心
2003年第2期105-107,共3页
Journal of Northwest Forestry University
基金
中南林学院青年科研基金(1998 384)
