沙地樟子松人工林土壤酶活性及其影响因子
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摘要
采用通径分析的方法对辽宁省章古台地区10～60 a沙地樟子松人工林的多种土壤理化因子与5种土壤酶活性进行分析。结果表明:5种土壤酶活性与多数土壤理化因子相关性显著,土壤酶活性能够表征该区域土壤综合肥力状况。不同土壤酶活性主要影响因子不同,蔗糖酶主要影响因子综合作用排序为:有机质>黏粒>速效磷> p H;蛋白酶主要影响因子综合作用排序为:碱解氮>速效钾>含水率;磷酸酶主要影响因子综合作用排序为:全磷>速效钾>粉粒;过氧化氢酶主要影响因子综合作用排序为:p H>容重>全磷>全钾;脲酶主要影响因子综合作用排序为:p H>黏粒>全氮>含水率。与简单相关分析相比,通径分析方法能更深入地了解土壤酶活性和土壤理化因子的关系,期望通过对土壤酶活性主要影响因子的研究为樟子松人工林的抚育和土壤改良提供依据。
The path analysis was used to analyze the soil physicochemical factors and 5 kinds of soil enzyme activities under the Pinus sylvestris var. mongolica plantation with 10-60 year stand ages in the Zhanggutai area of Liaoning Province. The results showed that the 5 kinds of soil enzyme activities in the study area were significantly correlated with most soil physicochemical factors,so the soil enzyme activities could be used to characterize the comprehensive soil fertility in this region. The main factors affecting the different soil enzyme activities were different,and the main factors affecting the sucrose enzyme were the contents of organic matter,clay and available phosphorus as well as pH value. The main factors affecting the protease were the contents of alkali-hydrolyzed nitrogen,available potassium and soil moisture. The main factors affecting the phosphatase were the contents of total phosphorus,available potassium and powder. The main factors affecting the catalase were the pH value,bulk density and contents of total phosphorus and total potassium. The main factors affecting the urease were the pH value and the contents of clay,total nitrogen and soil moisture. Compared with the simple correlation analysis,the path analysis could be used to better understand the relationship between soil enzyme activity and soil physicochemical factors. It is expected to provide a basis for soil improvement under Pinus sylvestris var. mongolica plantation through studying the main factors affecting soil enzyme activity.
The path analysis was used to analyze the soil physicochemical factors and 5 kinds of soil enzyme activities under the Pinus sylvestris var. mongolica plantation with 10-60 year stand ages in the Zhanggutai area of Liaoning Province. The results showed that the 5 kinds of soil enzyme activities in the study area were significantly correlated with most soil physicochemical factors,so the soil enzyme activities could be used to characterize the comprehensive soil fertility in this region. The main factors affecting the different soil enzyme activities were different,and the main factors affecting the sucrose enzyme were the contents of organic matter,clay and available phosphorus as well as pH value. The main factors affecting the protease were the contents of alkali-hydrolyzed nitrogen,available potassium and soil moisture. The main factors affecting the phosphatase were the contents of total phosphorus,available potassium and powder. The main factors affecting the catalase were the pH value,bulk density and contents of total phosphorus and total potassium. The main factors affecting the urease were the pH value and the contents of clay,total nitrogen and soil moisture. Compared with the simple correlation analysis,the path analysis could be used to better understand the relationship between soil enzyme activity and soil physicochemical factors. It is expected to provide a basis for soil improvement under Pinus sylvestris var. mongolica plantation through studying the main factors affecting soil enzyme activity.
引文
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[4]孙长忠,沈国舫.影响我国人工林生产力的自然因素评价[J].林业科学,2001,37(3):26-34.[Sun Changzhong,Shen Guofang.Study on the problems of forest plantation productivity of China[J].Scientia Silvae Sinicae,2001,37(3):26-34.]
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[7]Farley K A,Kelly E F.Effects of afforestation of a páramo grassland on soil nutrient status[J].Forest Ecology&Management,2004,195(3):281-290.
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[9]孔涛,刘民,淑敏,等.低分子量有机酸对土壤微生物数量和酶活性的影响[J].环境化学,2016,35(2):348-354.[Kong Tao,Liu Min,Shu Min,et al.Effect of low molecular weight organic acids on soil microbe number and soil enzyme activities[J].Environmental Chemistry,2016,35(2):348-354.]
[10]赵燕娜,廖超英,李晓明,等.毛乌素沙地不同林龄樟子松人工林土壤酶活性变化特征[J].西北林学院学报,2014,29(2):1-5.[Zhao Yanna,Liao Chaoying,Li Xiaoming,et al.Evolution of soil enzyme activities of Pinus sytvestris var.mongolica plantation at different ages in Mu Us Sand Land[J].Journal of Northwest Forestry University,2014,29(2):1-5.]
[11]张超,刘国彬,薛萐,等.黄土丘陵区不同林龄人工刺槐林土壤酶演变特征[J].林业科学,2010,46(12):23-29.[Zhang Chao,Liu Guobin,Xue Sha,et al.Evolution of soil enzyme activities of Robinia pseudoacacia plantation at different ages in Loess hilly region[J].Scientia Silvae Sinicae,2010,46(12):23-29.]
[12]刘云霞,胡亚林,曾德慧,等.科尔沁沙地草地营造樟子松人工林对土壤化学和生物学性状的影响[J].应用生态学报,2010,21(4):814-820.[Liu Yunxia,Hu Yalin,Zeng Dehui,et al.Effects of grassland afforestation with Mongolian pine on soil chemical and biological properties in Keerqin Sandy Land[J].Chinese Journal of Applied Ecology,2010,21(4):814-820.]
[13]魏晓婷,雷泽勇,韩辉.章古台沙地不同林龄樟子松人工林土壤水分研究[J].干旱区资源与环境,2016,30(6):115-121.[Wei Xiaoting,Lei Zeyong,Han Hui.Soil moistures characteristics of different-aged Pinus sylvestris var.mongolica artificial forests in Zhanggutai sandy area[J].Journal of Arid Land Resources&Environment,2016,30(6):115-121.]
[14]赵兰坡,姜岩.土壤磷酸酶活性测定方法的探讨[J].土壤通报,1986,17(3):138-141.[Zhao Lanpo,Jiang Yan.Determination of soil phosphatase activity[J].Chinese Journal of Soil Science,1986,17(3):138-141.]
[15]Shahriari F,Higashi T,Tamura K.Effects of clay addition on soil protease activities in Andosols in the presence of cadmium[J].Soil Science&Plant Nutrition,2010,56(4):560-569.
[16]Narasimhaa G,Sridevib A,Reddy S V G,et al.Effect of cotton ginning mill industrial effluents on soil dehydrogenase,phosphatase,amylase and invertase enzyme activities[J].International Journal of Agricultural and Food Science,2012,2(1):1-6.
[17]Kizilkaya R,Ak9ai,Askin T,et al.Effect of soil contamination with azadirachtin on dehydrogenase and catalase activity of soil[J].Eurasian Journal of Soilence,2012,1(2):98-103.
[18]孔涛,刘民,马瑜,等.黄瓜产量及土壤酶活性对基于古龙酸母液与废弃培养基有机肥的响应[J].环境化学,2015,34(12):2 275-2 280.[Kong Tao,Liu Min,Ma Yu,et al.Response of cucumber yield and soil enzyme activities to organic fertilizer of residue after evaporation from vitamin C fermentation and abandoned medium[J].Environmental Chemistry,2015,34(12):2 275-2 280.]
[19]鲍士旦.土壤农化分析[M].北京:中国农业出版社,2005:25-114.[Bao Shidan.Soil Agro-Chemistrical Analysis[M].Beijing:China Agriculture Press,2005:25-114.]
[20]杜家菊,陈志伟.使用SPSS线性回归实现通径分析的方法[J].生物学通报,2010,45(2):4-6.[Du Jiaju,Chen Zhiwei.Method of path analysis with SPSS linear regression[J].Biology Bulletin,2010,45(2):4-6.]
[21]宋小园,朱仲元,刘艳伟,等.通径分析在SPSS逐步线性回归中的实现[J].干旱区研究,2016,33(1):108-113.[Song Xiaoyuan,Zhu Zhongyuan,Liu Yanwei,et al.Application of path analysis in stepwise linear regression SPSS[J].Arid Zone Research,2016,33(1):108-113.]
[22]葛晓改,肖文发,曾立雄,等.三峡库区不同林龄马尾松土壤养分与酶活性的关系[J].应用生态学报,2012,23(2):445-451.[Ge Xiaogai,Xiao Wenfa,Zeng Lixiong,et al.Relationships between soil nutrient contents and soil enzyme activities in Pinus massoniana stands with different ages in Three Gorges Reservoir Area[J].Chinese Journal of Applied Ecology,2012,23(2):445-451.]
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