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当前位置: 首页 > 文章 > 污泥堆肥对黄梁木幼苗生长和元素吸收的影响 应用生态学报 2017,28 (5) 1550-1556
Position: Home > Articles > Effects of sewage sludge compost on the growth and element uptake of Neolamarckia cadamba seedlings Chinese Journal of Applied Ecology 2017,28 (5) 1550-1556

污泥堆肥对黄梁木幼苗生长和元素吸收的影响

作  者：
储双双;童馨;王文瑞;莫其锋;陈晓阳;曾曙才
单  位：
云南大学农学院;华南农业大学林学与风景园林学院
关键词：
污泥堆肥;黄梁木;生物量;重金属
摘  要：
污泥含有丰富的有机质和植物所需的营养元素,将污泥堆肥后用作苗木栽培基质逐渐成为新型的污泥生态化处置途径.通过7个月的盆栽试验,研究污泥堆肥不同添加量,即0%(CK)、25%(T_1)、50%(T_2)、75%(T_3)、100%(T_4)对黄粱木幼苗生长及营养元素和重金属吸收的影响,以及栽培后基质中元素变化特征.结果表明:污泥堆肥添加量对黄梁木生长有显著影响,纯污泥(T_4)中黄梁木苗木不能正常生长,移栽两周后植株全部死亡,而T_1、T_2和T_3处理则显著增加了黄梁木株高、地径和总生物量,其中,T_2处理效果最佳,3个生长指标均显著高于其他处理;T_2、T_3处理显著促进黄梁木对N、P、K以及重金属(Cu、Zn、Pb、Cd)的吸收,而T_1处理仅对N和Pb吸收有显著促进作用;同一处理条件下,黄梁木对污泥堆肥重金属吸收能力表现为Zn>Cu>Pb>Cd.盆栽试验结束时,污泥混合基质中有机质,以及N、P、K含量较高,但仍残留一定量重金属,不过均低于农用污泥污染物控制标准,具有再次利用的价值.
译  名：
Effects of sewage sludge compost on the growth and element uptake of Neolamarckia cadamba seedlings
作  者：
CHU Shuang-shuang;TONG Xin;WANG Wen-rui;MO Qi-feng;CHEN Xiao-yang;ZENG Shu-cai;College of Forestry and Landscape Architecture,South China Agricultural University;School of Agriculture,Yunnan University;Woody Feed Engineering Technology Research Center Affiliated to Universities in Guangdong;
关键词：
sewage sludge;;Neolamarckia cadamba;;biomass;;heavy metal
摘  要：
Sewage sludge compost(SSC) is rich in organic matter and nutrient elements indispensable to plant growth.Utilizing SSC as seedling growing substrate is generally recognized as a new ecological method for utilization of sewage sludge.We investigated impacts of SSC treatments including 0%(CK),25%(T_1),50%(T_2),75%(T_3),and 100%(T_4) on the growth and nutrient uptake of Neolamarckia cadamba seedlings in a 7-month pot experiment.The changes in element contents in substrate after pot experiment were also addressed.Results showed the SSC treatments had significant impacts on the growth of N.cadamba seedlings.The seedlings in T_4 treatment grew abnormally and all died in two weeks after transplanting.Seedling height,ground diameter and biomass in T_1,T_2 and T_3 treatments were significantly higher than CK,with those in T_2 being the best among all treatments.Seedlings in T_2 and T_3 treatments took up significantly more N,P,K,Cu,Zn,Pb and Cd,while those in T_1 treatment absorbed significantly more N and Pb than CK.The heavy metal uptake amount of each treatment exhibited the order of Zn>Cu>Pb>Cd.At the end of the pot experiment,the contents of organic matter,N,P and K in growing substrate were still relatively high,and a certain portion of heavy metals still remained in the substrate,but with lower contents than the standards set for agricultural usage-oriented sewage sludge,indicating that the postexperiment substrate may be reused.

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