本文選題：毛竹　切入點(diǎn)：根際土　出處：《生態(tài)學(xué)報(bào)》2017年18期 　論文類型：期刊論文

【摘要】：于2014年2月至2015年1月在浙江省衢州市鉛鋅礦附近毛竹林地采集土樣,對(duì)土壤重金屬含量、pH以及土壤酶活性等的動(dòng)態(tài)變化特征進(jìn)行了研究。結(jié)果表明:根際土與非根際土的p H在1a中變化均不明顯,且變化范圍都處在4.50—4.85之間;非根際土的土壤含水率大于根際土,兩者的變化幅度較大,最低值均出現(xiàn)在6月和10月;根際土中Zn和Cd的有效態(tài)含量遠(yuǎn)高于非根際土,而Pb的有效態(tài)含量則表現(xiàn)出非根際土大于根際土的特點(diǎn);過(guò)氧化氫酶、磷酸酶、脲酶和脫氫酶在根際土中的活性明顯高于非根際土;從土壤重金屬有效態(tài)與土壤酶活性相關(guān)性來(lái)看,根際土中,除有效態(tài)Pb與過(guò)氧化氫酶呈顯著負(fù)相關(guān)外,其余重金屬元素有效態(tài)與土壤酶活性相關(guān)性均沒有顯著相關(guān)性,而在非根際土壤中,有效態(tài)Cd與過(guò)氧化氫酶呈極顯著負(fù)相關(guān),與脲酶呈顯著負(fù)相關(guān),Zn和Cd則與土壤酶活性之間沒有顯著相關(guān)性。綜合研究結(jié)果表明,毛竹根際土壤質(zhì)量總體上明顯優(yōu)于非根際土,這為毛竹今后作為植物修復(fù)的材料提供了一定的理論依據(jù)。
[Abstract]:From February 2014 to January 2015, soil samples were collected from Phyllostachys pubescens forest near lead and zinc mine in Quzhou City, Zhejiang Province. The dynamic changes of soil heavy metal content, pH and soil enzyme activity were studied. The results showed that the pH of rhizosphere soil and non-rhizosphere soil did not change significantly in 1 year, and the range of variation was between 4.50 and 4.85. The soil moisture content in the non-rhizosphere soil was larger than that in the rhizosphere soil, and the range of variation was greater than that in the rhizosphere soil, and the lowest values occurred in June and October. The available contents of Zn and CD in the rhizosphere soil were much higher than those in the non-rhizosphere soil. The available Pb content showed that the activity of catalase, phosphatase, urease and dehydrogenase in non-rhizosphere soil was significantly higher than that in non-rhizosphere soil, and the activity of catalase, phosphatase, urease and dehydrogenase in rhizosphere soil was higher than that in non-rhizosphere soil. In the rhizosphere soil, except available Pb and catalase, there was no significant correlation between available heavy metal available state and soil enzyme activity, but there was no significant correlation between available heavy metal available state and soil enzyme activity in rhizosphere soil, except for the significant negative correlation between available Pb and catalase activity. But in non-rhizosphere soil, available CD was significantly negatively correlated with catalase and urease, while Zn and CD had no significant correlation with soil enzyme activity. The quality of rhizosphere soil of Phyllostachys pubescens was obviously superior to that of non-rhizosphere soil in general, which provided a theoretical basis for Phyllostachys pubescens as phytoremediation materials in the future.
【作者單位】： 浙江農(nóng)林大學(xué)省部共建亞熱帶森林培育國(guó)家重點(diǎn)實(shí)驗(yàn)室浙江省土壤污染生物修復(fù)重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金(No.31670617) 浙江省科技廳重點(diǎn)研發(fā)項(xiàng)目(2015C03G 4010004)
【分類號(hào)】：S714;S795.7

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