安徽阜南杞柳林生长及其土壤特性  

Growth and Soil Characteristics of Salix integra Stands in Funan,Anhui

作　　者：赵竑绯[1] 尹维彬[1] 陶晓[1] 徐小牛[1] 

机构地区：[1]安徽农业大学,合肥230036

出　　处：《东北林业大学学报》2011年第10期36-39,共4页Journal of Northeast Forestry University

基　　金：国家科技支撑计划课题(2009BADA6B05)

摘　　要：对阜南黄岗地区杞柳纯林及杨树-杞柳混交林两种栽培模式下的林分结构、生物量及土壤特性进行了研究。结果表明:不同栽培模式下杞柳的平均地径为0.46～0.99 cm,平均条高为130.44～187.61 cm,在相同林龄下纯林的平均地径和条高大于混交林;杞柳纯林及混交林的平均总生物量分别为17.55、17.03 t.hm-2,纯林的杞柳叶平均生物量高于混交林,而根系生物量则低于混交林,杞柳各部位的生物量大小依次为根(7.51)>去皮茎杆(6.32)>茎皮(2.42)>叶(1.16)。不同林分下,各样地土壤有机质、全N及全K质量分数随土层深度的加深而降低,同一土层中养分质量分数差异不显著。相关分析显示:平均地径与平均条高呈极显著正相关;杞柳林平均总生物量与土壤速效磷及10～30 cm土层有机质质量分数都呈极显著正相关;在各土层内土壤有机质、全N、全P、速效P、全Ca和全Mg质量分数间均存在不同程度的正相关。An investigation was conducted to study the structure, biomass and soil characteristics of Salix integra pure and mixed stands under two cultivation patterns. Results indicated that the mean base diameter and mean height for the two eultivation patterns were 0.46-0.99 cm and 130.44-187.61 cm respectively. The pure stands had higher mean base diameter and mean height compared with the mixed stands with poplar 1-69 of the same forest age. The average total biomass of the pure and mixed stands were 17.55 t · hm-2 and 17.03 t · hm-2, respectively. The foliar biomass was higher in the pure stands than in the mixed stands. However, the root biomass was adverse. The biomass of root （7.51 t · hm-2 ） was the highest, followed by peeled stem （6.32）, peel （2.42）, and leaf （1.16）. The contents of organic matter, total nitrogen and total potassium in different stands decreased with increasing depth of soil. There was no significant difference in nutrient content in the same soil layer between the pure and mixed stands. Correlation analysis demonstrated that the mean base diameter was significantly and positively correlatgd with mean height. The total biomass of S. integra stands had a significant positive correlation with available phosphorus in all soil layers, and organic matter in 10-30 cm soil layer. There were different degrees of correlations between organic matter, total nitrogen, total phosphorus, available phosphorus, total calcium and total magnesium.

关 键 词：生物量 相关性 杞柳 土壤养分 林分结构 

分 类 号：S792.120.2[农业科学—林木遗传育种]