本文選題：冀北山地 + 林分類型　； 參考：《水土保持研究》2017年03期

【摘要】：為改善冀北山地林地生態(tài)功能,提高該地區(qū)森林涵養(yǎng)水源的能力,選取冀北山地6種典型林分為研究對象,采用環(huán)刀法對土壤物理性質(zhì)進行了分析比較。結(jié)果表明:(1)土壤容重與土層深度呈正相關(guān),土壤容重均值排序為:華北落葉松林(1.20g/cm~3)蒙古櫟林(1.14g/cm3)油松林(1.12g/cm~3)黑樺林(1.03g/cm~3)白樺林(0.98g/cm~3)山楊林(0.81g/cm~3);(2)土壤總孔隙度與土層深度呈負相關(guān),土壤總孔隙度均值排序為:山楊林(57.6%)白樺林(51.4%)黑樺林(51.1%)油松林(49.1%)華北落葉松林(45.9%)蒙古櫟林(44.8%);土壤毛管孔隙度均值山楊林最大(48.9%),油松林最小(35.1%);非毛管孔隙度均值為油松林最大(14.0%),白樺林最小(3.6%);(3)土壤持水量與土層深度之間存在負相關(guān)關(guān)系,土壤最大持水量均值為山楊林最大,華北落葉松林最小;(4)土壤入滲速率與入滲時間呈明顯冪函數(shù)關(guān)系,穩(wěn)滲速率油松林最大(15.00mm/min),華北落葉松林最小(0.68mm/min)。研究結(jié)果可為森林土壤資源可持續(xù)利用提供依據(jù)。
[Abstract]:In order to improve the ecological function of forest land and to improve the ability of forest water conservation in the north of Hebei Province, six typical forest stands in the mountainous area of northern Hebei Province were selected as the research objects. The physical properties of the soil were analyzed and compared by means of circular knife method. The results showed that there was a positive correlation between soil bulk density and soil depth, and the order of soil bulk density was 1.20g / cm ~ (3) for North China larch forest (1.14g / cm ~ (3) for Mongolian oak forest (1.12g / cm ~ (3) for Pinus tabulaeformis (1.03g / cm ~ (3) for birch forest (0.98 g / cm ~ (3) for Yang Lin 0.81 g / cm ~ (3 / m ~ (2) soil porosity was negatively correlated with soil depth. The order of soil total porosity mean value is: Yang Lin 57.6) birch forest 51.4) Black birch forest 51.1) Pinus tabulaeformis forest 49.1) North China larch forest 45.9) Mongolian oak forest 44.8%; soil capillary porosity mean value mountain Yang Lin 48.9, Pinus tabulaeformis forest minimum 35.1U; non-capillary porosity mean value 45.9%; mean value of non-capillary porosity is 45.9%, while that of Pinus tabulaeformis forest is 35.1U; and the mean value of non-capillary porosity is 45.9%. There was a negative correlation between soil water holding capacity and soil depth in Pinus tabulaeformis forest and birch forest. The mean value of maximum soil water holding capacity was the highest in mountain Yang Lin and the lowest in Larix gmelinii forest in North China. The relationship between soil infiltration rate and infiltration time was obvious power function. The maximum infiltration rate of Pinus tabulaeformis forest was 15.00 mm / min, and that of North China larch forest was 0.68 mm 路min ~ (-1) 路min ~ (-1). The results can provide the basis for the sustainable utilization of forest soil resources.
【作者單位】： 河北環(huán)境工程學院生態(tài)學系;河北農(nóng)業(yè)大學林學院;
【基金】：河北省林業(yè)廳科技項目“冀北山區(qū)森林生態(tài)系統(tǒng)健康評價技術(shù)研究”(1403451) 林業(yè)公益性行業(yè)科研專項子課題“冀北山區(qū)典型森林生態(tài)系統(tǒng)健康經(jīng)營技術(shù)研究與示范”(200804022F)
【分類號】：S714
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本文編號：1965357