本文關(guān)鍵詞： 樹穴 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】：以國槐樹穴土壤為研究對象,進(jìn)行樹篦子、草皮、透水磚、鵝卵石、木片和無覆蓋6種覆蓋處理,2a后測定樹穴土壤理化性質(zhì)。結(jié)果表明,樹穴覆蓋對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%;透水磚覆蓋會壓實(shí)樹穴土壤;樹篦子、鵝卵石和草皮覆蓋對土壤理化性質(zhì)無顯著影響。樹穴覆蓋對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20cm以下的土壤理化性質(zhì)無顯著影響。
[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】：S714.2
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本文編號：1535723