本文關(guān)鍵詞： 樹(shù)穴 覆蓋材料 土壤物理性質(zhì) 土壤化學(xué)性質(zhì)　出處：《西北林學(xué)院學(xué)報(bào)》2017年06期 　論文類型：期刊論文

【摘要】：以國(guó)槐樹(shù)穴土壤為研究對(duì)象,進(jìn)行樹(shù)篦子、草皮、透水磚、鵝卵石、木片和無(wú)覆蓋6種覆蓋處理,2a后測(cè)定樹(shù)穴土壤理化性質(zhì)。結(jié)果表明,樹(shù)穴覆蓋對(duì)0~10cm土層的土壤理化性質(zhì)影響較大,其中木片覆蓋能顯著改善土壤理化性質(zhì),使土壤容重降低8.72%,總孔隙度提高19.81%,有機(jī)質(zhì)、全氮、堿解氮、速效磷和速效鉀含量分別提高64.65%、60.34%、110.54%、107.08%、62.34%;透水磚覆蓋會(huì)壓實(shí)樹(shù)穴土壤;樹(shù)篦子、鵝卵石和草皮覆蓋對(duì)土壤理化性質(zhì)無(wú)顯著影響。樹(shù)穴覆蓋對(duì)10~20cm土層土壤理化性質(zhì)的影響程度較0~10cm土層有所減弱,對(duì)20cm以下的土壤理化性質(zhì)無(wú)顯著影響。
[Abstract]:In the tree hole soil as the research object, the tree grate, a water permeable brick, stone, wood and non covered 6 kinds of coverage, the physicochemical properties of tree soil was determined by 2A. The results show that the tree coverage in the depth of 0~10cm soil physicochemical properties influence, which can cover the wood physical and chemical properties significantly to improve the soil, the soil bulk density decreased 8.72%, the total porosity increased 19.81%, organic matter, total nitrogen, available nitrogen, available phosphorus and available potassium content increased 64.65%, respectively, 60.34%, 110.54%, 107.08%, 62.34%; the water permeable brick covering the compaction of tree soil; tree grate, pebbles and grass mulch on soil physicochemical properties had no significant effect of tree cover. Influence on physicochemical properties of 10~20cm soil than in 0~10cm soil layer decreased, the 20cm below the soil physicochemical properties had no significant effect.

【作者單位】： 北京林業(yè)大學(xué)林學(xué)院;
【基金】：北京市科技計(jì)劃(Zl61100001316004)
【分類號(hào)】：S714.2
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本文編號(hào)：1535723