苏南丘陵火炬松林对重金属元素和磷、硫的吸收与累积

作     者：吴永刚 姜志林 栾以玲 Wu Yonggang,Jiang Zhilin,Luan Yiling( College of Forest Resources and Environment,Nanjing Forestry University,Nanjing 210037).

作者机构：南京林业大学森林资源与环境学院南京210037 

出 版 物：《生态学杂志》 (Chinese Journal of Ecology)

年 卷 期：2002年第21卷第3期

页      面：5-9页

核心收录：

学科分类：07[理学] 0713[理学-生态学] 

基　　金：国家林业局下蜀城市森林生态系统定位站 国家自然科学基金项目 ( 39899370 -1) 

主　　题：苏南丘陵 火炬松林 重金属元素 磷 硫 吸收 累积 

摘      要：Absorption,accumulation and distribution of Pb,Cd,Cr,Cu,Mn,Ni,Zn,P and S elements in loblolly pine plantation in the hilly regions of southern Jiangsu province were *** results show that the storage of nine elements in the soil of the forest is in order of SPMnZnCrCuPbNiCd,their contents in different organs of trees are quite different,being Pb 0 96～5 81,Cd 0 266～0 720,Cr 8 55～9 49,Cu 4 36～9 44,Mn 18 98～61 07,Ni 1 74～9 03,Zn 13 44～32 69,P 168～987,and S 446～1770(mg·kg -1 ).Their accumulation ratios of elements in plants are in order of Cd PSCuZnCrPbNi *** accumulation amounts of Pb,Cd,Cr,Cu,Mn,Ni,Zn,P and S in the biomass of the community are 36 30 ,5 47,85 58,74 54,248 1,26 81,236 5,3268,and 8158 (mg·m -2 ),respectively,of which the overground part accounted for 5 37%,10 60%,23 77%,15 99%,16 61%,12 38%,12 34%,24 85%,and 4712%,higher than underground *** biological cycles of the elements in the community are described as follows:annual uptake is Pb 23 75,Cd 1 97,Cr 24 07,Cu 27 44,Mn 170 17,Ni 19 51,Zn 109 29,P 1721 69,and S 2843 14 (mg·m -2 ).Annual return is Pb 12 70,Cd 0 68,Cr 1 66,Cu 10 49,Mn 70 72,Ni 6 46,Zn 40 60,P 257 61,and S 486 56 (mg·m -2 ).The turnover periods of nine elements are 3,8,52,7,4,4,6,57 and 17 years respectively.