不同经营强度对雷竹林土壤理化性质及土壤质量的影响  

Effects of Different Management Intensities on Soil Physicochemical Properties and Soil Quality in Phyllostachys Praecox Plantations

作　　者：高雨 曹迁 陈蕾如 张志丽 张爱婷 徐小牛 Gao Yu;Cao Qian;Chen Leiru;Zhang Zhili;Zhang Aiting;Xu Xiaoniu(Anhui Provincial Key Laboratory of Forest Resources&Silviculture,Anhui Agricultural University,Hefei,Anhui 230036,China;School of Forestry and Landscape Architecture,Anhui Agricultural University,Hefei,Anhui 230036,China;Xinhua Forestry Technology Extension Station,Huangshan District,Huangshan City,Anhui Province,Huangshan,Anhui 245718,China)

机构地区：[1]安徽省林木资源培育重点实验室,安徽合肥230036 [2]安徽农业大学林学与园林学院,安徽合肥230036 [3]安徽省黄山市黄山区新华林业站,安徽黄山245718

出　　处：《水土保持通报》2024年第5期294-304,共11页Bulletin of Soil and Water Conservation

基　　金：国家“十三五”重点研发计划项目“竹林立体复合高值化经营技术”(2018YFD0600105);安徽省中央引导地方科技发展专项(202007d06020010)。

摘　　要：[目的]开展不同经营强度对雷竹林土壤理化性质及土壤质量的影响研究,为雷竹林科学经营及养分管理提供科学依据。[方法]采用样地调查法对安徽黄山市黄山区新华乡不同经营强度下雷竹林土壤理化性质进行分析,利用主成分析法建立土壤养分最小数据集比较该地区不同经营强度下雷竹林的土壤质量状况。[结果]不同经营强度下土壤理化性质差异显著。在0-10 cm土层中,中度经营的土壤容重显著低于高度经营、粗放经营;中、高强度经营的土壤含水量显著低于粗放经营。在0-10 cm土层中,土壤pH值:强度经营(4.12)>粗放经营(4.01)>中度经营(3.97);中度经营的土壤有机碳(24.82 g/kg)、全氮(1.67 g/kg)显著高于粗放经营(18.64,1.35 g/kg)和强度经营(17.39,1.25 g/kg);中、强度经营的土壤全磷(0.53,0.49 g/kg)显著高于粗放经营(0.27 g/kg)。中、强度经营下的C/P范围(30.99~53.40)、N/P范围(2.77~3.60)均低于粗放经营〔(64.82~78.96),(5.20~5.56)〕,3种不同经营强度下土壤C/N均值介于10.95~14.68之间。在0-10 cm土层中,不同经营强度下雷竹林的土壤质量指数大小顺序为:粗放经营(0.42)>中度经营(0.36)>强度经营(0.31),土壤质量指数随土层加深而降低。[结论]强酸性土壤环境不利于雷竹的生长,中度经营林分土壤持水能力及水源涵养能力较好,随着经营强度的加强土壤肥力越低,不利于土壤质量的维持。[Objective]The effects of different management intensities on soil physicochemical properties and soil quality were analyzed to provide a scientific basis for the scientific management and nutrient management of Phyllostachys praecox forests.[Methods]Based on the analysis of soil physicochemical properties in P.praecox plantations under various management intensities in Huangshan District,Anhui Province,a minimum dataset was established through principal component analysis,and the soil quality in P.praecox plantations under different management intensities was analyzed.[Results]Significant differences were observed in the soil physicochemical properties under different management intensities.The bulk density was significantly lower in mid-intensity management than in high-intensity and extensive management in the 0-10 cm soil layer.The soil water contents in mid-and high-intensity management were significantly lower than those in extensive management.In the 0-10 cm soil layer,the value of soil pH value was ranked in the order of high-intensity management(4.12)>extensive management(4.01)>mid-intensity management(3.97).The soil organic carbon(24.82 g/kg)and total nitrogen(1.67 g/kg)in mid-intensity management were significantly higher than those in extensive management(18.64,1.35 g/kg)and high-intensity management(17.39,1.25 g/kg).The soil total phosphorus(0.53,0.49 g/kg)was significantly higher in mid-and high-intensity management than in extensive management(0.27 g/kg).The ranges of C/P(30.99-53.40)and N/P(2.77-3.60)in mid-and high-intensity were lower than those in extensive management〔(64.82-78.96)and(5.20-5.56)〕,and the average value of soil C/N in three different management intensities ranged from 10.95 to 14.68.In the 0-10 cm soil layer,the soil quality indices in the different management intensities were ranked in the order of extensive management(0.42)>mid-intensity management(0.36)>high-intensity management(0.31),where the soil quality index decreased with the deepening of the soil layer.[Conclusion]A

关 键 词：经营强度 土壤理化性质 化学计量比 土壤质量指数 

分 类 号：S714.8[农业科学—林学]