本文關(guān)鍵詞： 華北潮土 綠肥 可溶性有機(jī)物 紫外-可見光譜參數(shù)　出處：《光譜學(xué)與光譜分析》2017年01期 　論文類型：期刊論文

【摘要】：在華北潮土上種植不同綠肥,于綠肥翻壓前原位采集其地上部及土壤樣品,進(jìn)行56d的綠肥翻壓模擬試驗(yàn)。設(shè)毛葉苕子(Vicia villosa Roth.)、二月蘭(Orychophragmus Violaceus L.)、黑麥(Secale cereale L.)三個(gè)綠肥處理和無綠肥對(duì)照處理,分析培養(yǎng)過程中土壤可溶性有機(jī)物(DOM)組分及其紫外-可見光譜參數(shù)的變化,以探究綠肥對(duì)土壤DOM的影響。種植和翻壓綠肥增加土壤可溶性有機(jī)碳(DOC)、總有機(jī)酸碳(TOAs)和總碳水化合物碳(TCs)含量,三者的變化趨勢(shì)一致,各處理均在培養(yǎng)第1d上升至峰值后迅速下降。毛葉苕子提高DOC和TOAs的效果最好,最高比對(duì)照增加114.01%(培養(yǎng)第1d)和109.10%(培養(yǎng)第14d)。黑麥提高TCs的效果最好,最高比對(duì)照增加323.18%(培養(yǎng)第42d)。種植和翻壓綠肥增加土壤可溶性有機(jī)氮(DON)含量,與DOC變化趨勢(shì)不同,各處理在培養(yǎng)第1d上升后迅速下降一段時(shí)間后又迅速上升。毛葉苕子提高DON的效果最好,最高比對(duì)照增加305.83%(培養(yǎng)第42d)。綠肥增加了SUVA_(254),SUVA_(260),SUVA_(272),SUVA_(280),SAUC_(240-400),降低了A_(250)/A_(365)和A_(240)/A_(420)。紫外-可見光譜參數(shù)的主成分分析顯示SUVA_(254),SUVA_(260),SUVA_(272),SUVA_(280)間有很高正相關(guān)性,A_(250)/A_(365)和A_(240)/A_(420)間亦有很高正相關(guān)性,SAUC_(240-400)是這些參數(shù)中表征DOM性質(zhì)的關(guān)鍵因子。綜上結(jié)果表明,種植翻壓綠肥增加了土壤DOM含量,提高了土壤DOM的芳香性、疏水性、腐殖化程度、平均分子量,增加了土壤DOM的穩(wěn)定性。
[Abstract]:Different green manure was planted on the North China tidal soil, and the above ground and soil samples were collected in situ before the green manure was rolled over. The experiment was carried out for 56 days. Vicia villosa Roth. was set up. In February, Orychophragmus Violaceus L. and rye cereale L.) three green manure treatments and no green manure control treatments. The changes of soil soluble organic matter (DOM) components and UV-Vis spectral parameters during culture were analyzed. In order to explore the effect of green manure on soil DOM, planting and rolling green manure increased the contents of soluble organic carbon (DOM), total organic acid (TOC) and total carbohydrate (TCS) in soil. The change trend of the three treatments was the same, all treatments increased to the peak value at the first day of culture, and the effect of hairy vetch on DOC and TOAs was the best. The maximum increase of 114.01 and 109.10 were 114.01 and 109.10, respectively. The effect of rye on TCs was the best. The highest content of soil soluble organic nitrogen (DON) was increased by 323.18% than that of the control (cultivation of 42nd day), and the change trend of soil soluble organic nitrogen was different from that of DOC. The DON of hairy vetch was the best in the first day of culture, and then decreased rapidly for a period of time after rising on the first day of culture. The maximum was 305.83 compared with the control. SUVAART 280 SAUCART 240-400). The number of cases reduced by 250 / A / A / A / T / 365) and the number of As / A / A / T / A / A / T / A / A / A / A / A / A / A / A / V / A / A / A / A / A / V / A / A / A / A / A / A / A / A. There is a high positive correlation between the two groups. There is also a high positive correlation between AIM 250 / AIM / AIM / AIM / A20). SAUCSCALL 240-400) is the key factor to characterize the properties of DOM in these parameters. The results show that green manure can increase the content of DOM in soil and increase the aromaticity of DOM in soil. Hydrophobicity, humification degree and average molecular weight increased the stability of soil DOM.
【作者單位】： 中國農(nóng)業(yè)科學(xué)院農(nóng)業(yè)資源與農(nóng)業(yè)區(qū)劃研究所/農(nóng)業(yè)部植物營養(yǎng)與肥料重點(diǎn)實(shí)驗(yàn)室;中國農(nóng)業(yè)科學(xué)院研究生院;華中農(nóng)業(yè)大學(xué)資源與環(huán)境學(xué)院;青海大學(xué)青海省農(nóng)林科學(xué)院土壤肥料研究所;Faculty
【基金】：公益性行業(yè)(農(nóng)業(yè))科研專項(xiàng)(201103005) 中國農(nóng)業(yè)科學(xué)院科技創(chuàng)新工程項(xiàng)目資助
【分類號(hào)】：S142;S153
【正文快照】： 1.中國農(nóng)業(yè)科學(xué)院農(nóng)業(yè)資源與農(nóng)業(yè)區(qū)劃研究所/農(nóng)業(yè)部植物營養(yǎng)與肥料重點(diǎn)實(shí)驗(yàn)室,北京1000812.中國農(nóng)業(yè)科學(xué)院研究生院,北京1000813.華中農(nóng)業(yè)大學(xué)資源與環(huán)境學(xué)院,湖北武漢4300704.青海大學(xué)青海省農(nóng)林科學(xué)院土壤肥料研究所,青海西寧8100165.Faculty of Agriculture,Kagoshima Univ

【相似文獻(xiàn)】

相關(guān)期刊論文 前7條

1 劉明亮;張運(yùn)林;王鑫;李云亮;;太湖有色可溶性有機(jī)物4種光譜模型的對(duì)比[J];生態(tài)與農(nóng)村環(huán)境學(xué)報(bào);2009年01期

2 吳鑫,楊紅;可溶性有機(jī)物對(duì)土壤中主要有機(jī)污染物環(huán)境行為的影響[J];生態(tài)環(huán)境;2003年01期

3 張運(yùn)林;秦伯強(qiáng);龔志軍;;太湖有色可溶性有機(jī)物熒光的空間分布及其與吸收的關(guān)系[J];農(nóng)業(yè)環(huán)境科學(xué)學(xué)報(bào);2006年05期

4 劉志光;徐仁扣;;土壤和天然水中可溶性有機(jī)物與氧化物之間的相互作用[J];土壤學(xué)進(jìn)展;1992年01期

5 王戎;何杞雙;王雁;曹軍;陶澍;彭輝;劉煜;蒙冰君;;可溶性有機(jī)物對(duì)玉米根部菲與芴吸著與吸收過程的影響[J];農(nóng)業(yè)環(huán)境科學(xué)學(xué)報(bào);2009年01期

6 吳龍華,駱永明,黃煥忠;銅污染土壤修復(fù)的有機(jī)調(diào)控研究I.可溶性有機(jī)物和EDTA對(duì)污染紅壤銅的釋放作用[J];土壤;2000年02期

7 ;[J];;年期

相關(guān)會(huì)議論文 前2條

1 毛麗;孫兆海;余益軍;鮮U_鳴;于紅霞;;可溶性有機(jī)物對(duì)四溴雙酚A的增溶作用研究[A];持久性有機(jī)污染物論壇2008暨第三屆持久性有機(jī)污染物全國學(xué)術(shù)研討會(huì)論文集[C];2008年

2 張運(yùn)林;秦伯強(qiáng);陳偉民;;梅梁灣藻華暴發(fā)期顆粒物和有色可溶性有機(jī)物的吸收光譜[A];第十五屆全國遙感技術(shù)學(xué)術(shù)交流會(huì)論文摘要集[C];2005年

相關(guān)碩士學(xué)位論文 前1條

1 劉明亮;太湖有色可溶性有機(jī)物吸收特性研究[D];南京農(nóng)業(yè)大學(xué);2009年

，

本文編號(hào)：1481618