發(fā)布時(shí)間：2018-05-12 13:57

  本文選題：顆粒態(tài)有機(jī)碳 + 黑碳��； 參考：《林業(yè)科學(xué)研究》2017年02期

【摘要】：[目的]量化長(zhǎng)白山原始闊葉紅松林和楊樺次生林土壤顆粒有機(jī)碳和黑碳含量及分布特征,為研究東北森林土壤有機(jī)碳分布和積累提供依據(jù)。[方法]采用粒徑分組方法測(cè)定原始闊葉紅松林和楊樺次生林土壤表層(A_(11))和亞表層(A_(12))顆粒有機(jī)碳(POC)和黑碳(BC)含量,分析其與土壤基本性質(zhì)(有機(jī)質(zhì)、含水量、p H值、粘粒和團(tuán)聚體等)的關(guān)系。[結(jié)果]表明:(1)兩種森林類(lèi)型土壤A_(11)和A_(12)POC含量分別為31.89 88.00、5.25 19.45 g·kg~(-1),BC含量分別為8.43 22.40、3.39 12.10 g·kg~(-1),二者隨土壤深度增加而顯著下降(p0.01)。(2)森林類(lèi)型顯著影響土壤POC和BC,表現(xiàn)為楊樺次生林原始闊葉紅松林。(3)兩種森林類(lèi)型土壤POC與土壤有機(jī)質(zhì)、含水量、水穩(wěn)性團(tuán)聚體均顯著相關(guān),與p H值、粘粒相關(guān)性不顯著;BC與土壤p H值、粘粒和團(tuán)聚體相關(guān)性均不顯著,與含水量顯著相關(guān),與有機(jī)質(zhì)僅在A_(11)顯著相關(guān)。(4)土壤POC和BC顯著相關(guān)(p0.01)。[結(jié)論]在長(zhǎng)白山地區(qū)森林類(lèi)型顯著影響土壤POC和BC含量,楊樺次生林土壤POC和BC顯著高于原始闊葉紅松林,很大程度上與森林的采伐和火燒有關(guān)。兩種森林類(lèi)型土壤POC和BC分布格局是土壤物理化學(xué)性質(zhì)綜合作用的結(jié)果。
[Abstract]:[objective] to quantify the soil particulate organic carbon (SOC) and black carbon (SOC) content and distribution characteristics in the primary broad-leaved Pinus koraiensis and Betula platyphylla secondary forests in Changbai Mountain, so as to provide a basis for the study of soil organic carbon distribution and accumulation in Northeast China. [methods] the particle size grouping method was used to determine the contents of organic carbon (POC) and black carbon (BCC) in the soil surface of Pinus koraiensis and Betula platyphylla secondary forests, and to analyze their relationship with the basic properties of soil (organic matter, water content and pH value). The relationship between clay particles and aggregates, etc. [results] the results showed that the contents of A_(12)POC in two forest types were 31.89 88.005.25 19.45 g 路kg ~ (-1) 路kg ~ (-1), 8.43 22.40 ~ 3.39 ~ (12. 10) g 路kg ~ (-1) 路kg ~ (-1), respectively, and decreased significantly with the increase of soil depth. 2) the forest types significantly affected soil POC and BC, as shown by Betula platyphylla second time. Soil POC and soil organic matter of two forest types, I. E. broadleaved Pinus koraiensis forest. Water content, water stable aggregate were significantly correlated with pH, clay had no significant correlation with soil pH, clay and aggregate had no significant correlation with water content. Soil POC and BC were significantly correlated with organic matter only in Atii (11). (4) soil POC and BC were significantly correlated with P0.01C (P < 0.01). [conclusion] in Changbai Mountain area, the content of POC and BC in soil was significantly affected by forest types, and the POC and BC in the secondary forest of Betula platyphylla was significantly higher than that in the original broad-leaved Korean pine forest, which was related to the cutting and burning of the forest to a great extent. The distribution patterns of POC and BC in soil of two forest types are the result of comprehensive physical and chemical properties of soil.
【作者單位】： 東北林業(yè)大學(xué);
【基金】：國(guó)家科技支撐計(jì)劃項(xiàng)目(2011BAD37B01) 國(guó)家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃項(xiàng)目(2011CB403202)資助
【分類(lèi)號(hào)】：S714

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