貴州省櫟類土壤發(fā)生層特征及對(duì)土壤有機(jī)碳密度的影響
發(fā)布時(shí)間：2018-07-20 16:34
【摘要】：采用野外實(shí)地調(diào)查和室內(nèi)實(shí)驗(yàn)分析相結(jié)合的方法,以貴州櫟類林地為對(duì)象,研究分析櫟類林地土壤發(fā)生層特征和土壤有機(jī)碳密度特征以及發(fā)生層對(duì)有機(jī)碳密度的影響。結(jié)果表明:1)隨著海拔不斷上升,貴州省內(nèi)櫟類林地土壤發(fā)生層分布特征顯著,且土壤發(fā)生層受外界氣候影響顯著性不斷增加。2)隨著土層深度增加,遵義和銅仁有機(jī)碳含量呈現(xiàn)下降趨勢(shì),土壤容重呈現(xiàn)不斷上升趨勢(shì),且遵義有機(jī)碳密度變動(dòng)幅度劇烈;黔南和黔西南有機(jī)碳密度變化趨勢(shì)復(fù)雜,土壤容重變化呈現(xiàn)上升趨勢(shì)。3)隨著海拔上升,有機(jī)碳密度整體呈現(xiàn)上升趨勢(shì),其中黔西南樣地海拔最低,土壤有機(jī)碳密度含量最低;遵義樣地海拔最高,且土壤有機(jī)碳密度最高。4)Pearson指數(shù)和顯著性指數(shù)研究表明,櫟類林地有機(jī)碳密度與土壤發(fā)生層呈現(xiàn)一定相關(guān)性,但相關(guān)性不顯著。
[Abstract]:Based on field investigation and laboratory experimental analysis, the characteristics of soil organic carbon density and the effect of occurrence layer on organic carbon density of Quercus Quercus forest land in Guizhou Province were studied. The results showed that the distribution of soil layers in Quercus woodland in Guizhou Province was significant with the increase of altitude, and the distribution of soil layers was significantly increased by the influence of external climate. 2) with the increase of soil depth, the distribution of soil layers in Quercus woodland in Guizhou Province increased significantly with the increase of altitude. The content of organic carbon in Zunyi and Tongren showed a downward trend, the soil bulk density showed a rising trend, and the range of change of organic carbon density in Zunyi was sharp, while the change trend of organic carbon density in southern Guizhou and southwest Guizhou was complex. The soil bulk density showed an increasing trend with the elevation rising, the organic carbon density of the sample land in southwest Guizhou was the lowest, the soil organic carbon density was the lowest, Zunyi sample land had the highest altitude, and the soil organic carbon density was the lowest in the southwest Guizhou, and the highest in the Zunyi sample. The results of Pearson index and significant index showed that the organic carbon density of Quercus woodland was correlated with the soil layer, but the correlation was not significant.
【作者單位】： 貴州省林業(yè)調(diào)查規(guī)劃院;
【分類號(hào)】：S714
本文編號(hào)：2134115
[Abstract]:Based on field investigation and laboratory experimental analysis, the characteristics of soil organic carbon density and the effect of occurrence layer on organic carbon density of Quercus Quercus forest land in Guizhou Province were studied. The results showed that the distribution of soil layers in Quercus woodland in Guizhou Province was significant with the increase of altitude, and the distribution of soil layers was significantly increased by the influence of external climate. 2) with the increase of soil depth, the distribution of soil layers in Quercus woodland in Guizhou Province increased significantly with the increase of altitude. The content of organic carbon in Zunyi and Tongren showed a downward trend, the soil bulk density showed a rising trend, and the range of change of organic carbon density in Zunyi was sharp, while the change trend of organic carbon density in southern Guizhou and southwest Guizhou was complex. The soil bulk density showed an increasing trend with the elevation rising, the organic carbon density of the sample land in southwest Guizhou was the lowest, the soil organic carbon density was the lowest, Zunyi sample land had the highest altitude, and the soil organic carbon density was the lowest in the southwest Guizhou, and the highest in the Zunyi sample. The results of Pearson index and significant index showed that the organic carbon density of Quercus woodland was correlated with the soil layer, but the correlation was not significant.
【作者單位】： 貴州省林業(yè)調(diào)查規(guī)劃院;
【分類號(hào)】：S714
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1 李加林;劉闖;張殿發(fā);童億勤;楊曉平;李偉方;;土地利用變化對(duì)土壤發(fā)生層質(zhì)量演化的影響——以杭州灣南岸濱海平原為例[J];地理學(xué)報(bào);2006年04期
，本文編號(hào)：2134115
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