本文選題：撫育間伐　切入點(diǎn)：遼東山區(qū)　出處：《東北林業(yè)大學(xué)學(xué)報(bào)》2016年05期 　論文類型：期刊論文

【摘要】：通過野外調(diào)查取樣和室內(nèi)測試與分析,研究了不同撫育間伐強(qiáng)度下,人工紅松林土壤物理性質(zhì)及其持水特性。結(jié)果表明:與對(duì)照相比,0~20 cm土層,弱度、中度和強(qiáng)度撫育間伐處理的土壤密度分別減少了1.36%、17.10%、13.46%;土壤總孔隙度分別是對(duì)照的1.02、1.14、1.23倍,土壤毛管孔隙度分別是對(duì)照的1.00、1.14、1.21倍,土壤非毛管孔隙度分別是對(duì)照的1.13、1.14、1.40倍;土壤最大持水量與對(duì)照相比分別提高了0.52%、13.90%、23.18%,土壤非毛管持水量分別高出了12.79%、14.30%、39.65%;土壤飽和入滲系數(shù)分別是對(duì)照的2.81、3.45、4.99倍。20~40 cm土層所表現(xiàn)出的規(guī)律與0~20 cm土層基本一致,方差分析顯示,各撫育間伐處理均能顯著改善土壤的物理性質(zhì)及其持水性能,且以中度及強(qiáng)度撫育間伐處理的效果更優(yōu)。
[Abstract]:Through field investigation and laboratory test and analysis, the soil physical properties and water holding characteristics of artificial Korean pine forest under different tending and thinning intensities were studied. The results showed that the soil layer of 20 cm was weaker than that of the control. The soil density of moderate and intensive thinning treatments decreased by 1.36 ~ 17.10 ~ 13.46%, the total porosity of soil was 1.02 ~ 1.14 ~ 1.23 times of that of the control, the porosity of soil capillary was 1.00 ~ 1.141.21 times of that of the control, and the soil non-capillary porosity was 1.131.141.40 times of that of the control, respectively. Compared with the control, the maximum soil water holding capacity increased by 0.52% 13.90% and 23.18, respectively, and the soil non-capillary water holding capacity was 12.79 ~ 14.30 ~ 39.65, respectively, and the saturated infiltration coefficient of the soil was 2.81 ~ 3.45 ~ 4.99 times as much as that of the control, and the regularity of the soil layer of 20~ 40 cm was basically the same as that of the 0 ~ 20 cm soil layer, and the variance analysis showed that the soil saturation infiltration coefficient was the same as that in the control soil layer of 2.81 ~ 3.45 ~ 4.99 times. The physical properties and water holding capacity of soil were significantly improved by various tending and thinning treatments, and the effects of moderate and intensive thinning treatments were better.
【作者單位】： 遼寧省森林經(jīng)營研究所;
【基金】：林業(yè)公益性行業(yè)科研專項(xiàng)(201404303) 遼寧省科學(xué)技術(shù)計(jì)劃項(xiàng)目(20121149) 林業(yè)科技創(chuàng)新平臺(tái)運(yùn)行補(bǔ)助項(xiàng)目(2015-LYPTDW-048)
【分類號(hào)】：S714.7
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本文編號(hào)：1594657