坡位对思茅松人工林土壤微生物量碳的影响
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摘要
为了探讨坡位对思茅松人工林土壤微生物量碳的影响,以12年生的思茅松人工林为研究对象,对不同坡位0-50cm土层土壤微生物量碳含量及密度进行调查。结果表明:思茅松人工林土壤有机碳质量分数随着海拔的升高而增加,土壤微生物量碳主要集中于0-10cm的土壤层,0-50cm土层深度的土壤微生物量碳的平均含量下坡位>中坡位>上坡位;在0-30cm土壤层,土壤微生物量碳占土壤有机碳的比值随着海拔的升高而下降,下坡位更有利于土壤有机碳的积累;50cm土层深度土壤微生物量碳密度数值范围为0.85-1.56t/hm~2,下坡位最大,上坡位最小。研究表明思茅松人工林土壤易分解性有机碳库在下坡位最大。
In order to explore the effect of slope position on soil microbial biomass carbon(MBC)pool of Pinus kesiya var. langbianensis plantation,microbial biomass carbon(MBC)and density in the depth of 0-50 cm soil in different slope position of 12 years P.kesiya var. langbianensis plantation were investigated.The results showed that the soil organic carbon(SOC)contents of P.kesiya var. langbianensis plantations increased with the increase of elevation, and soil MBC mainly concentrated on the layer of 0-10 cm,the order of MBC content in the depth of 50 cm was bottom slope position>middle slope position>top slope position;the proportions of MBC in SOC in the depth of 0-30 cm decreased with the increase of elevation,bottom slope position was more beneficial to the accumulation of soil organic carbon;The values of MBC density in the depth of 50 cm ranged from 0.85 to 1.56 t/hm~2,the maximum and minimum were bottom slope position and top slope position respectively.The results of this study verified that the soil easy decomposable organic carbon pool of P.kesiya var. langbianensis plantation was the largest in the bottom slope position.
In order to explore the effect of slope position on soil microbial biomass carbon(MBC)pool of Pinus kesiya var. langbianensis plantation,microbial biomass carbon(MBC)and density in the depth of 0-50 cm soil in different slope position of 12 years P.kesiya var. langbianensis plantation were investigated.The results showed that the soil organic carbon(SOC)contents of P.kesiya var. langbianensis plantations increased with the increase of elevation, and soil MBC mainly concentrated on the layer of 0-10 cm,the order of MBC content in the depth of 50 cm was bottom slope position>middle slope position>top slope position;the proportions of MBC in SOC in the depth of 0-30 cm decreased with the increase of elevation,bottom slope position was more beneficial to the accumulation of soil organic carbon;The values of MBC density in the depth of 50 cm ranged from 0.85 to 1.56 t/hm~2,the maximum and minimum were bottom slope position and top slope position respectively.The results of this study verified that the soil easy decomposable organic carbon pool of P.kesiya var. langbianensis plantation was the largest in the bottom slope position.
引文
[1]沈宏,曹志洪,胡正义.土壤活性有机碳的表征及其生态效应[J].生态学杂志,1999,18(3):32-38.
[2]杨丽霞,潘剑君.土壤活性有机碳库测定方法研究进展[J].土壤通报,2004,35(4):502-506.
[3]王晶,张仁陟,李爱宗.耕作方式对土壤活性有机碳和碳库管理指数的影响[J].干旱地区农业研究,2008(6):8-12.
[4]柳敏,宇万太,姜子绍,等.土壤活性有机碳[J].生态学杂志,2006(11):1412-1417.
[5]何容,汪家社,施政,等.武夷山植被带土壤微生物量沿海拔梯度的变化[J].生态学报,2009,29(9):5138-5144.
[6]李延茂,胡江春,汪思龙,等.森林生态系统中土壤微生物的作用与应用[J].应用生态学报,2004,15(10):1943-1946.
[7]张地,张育新,曲来叶,等.坡位对东灵山辽东栎林土壤微生物量的影响[J].生态学报,2012,32(20):6412-6421.
[8]蒋云东,李思广,付玉嫔,等.思茅松人工林的高效经营模式及其效益分析[J].西部林业科学,2007,36(4):16-19.
[9]胡光辉,刘云彩,王忠祥,等.思茅松人工林主要虫害及其持续控制技术[J].西部林业科学,2007,36(4):34-40.
[10]翁海龙,陈宏伟,段安安.思茅松高产脂优树选择[J].西北林学院学报,2010,25(3):71-74.
[11]李江,孟梦,邱琼,等.思茅松中幼龄人工林生物量及生产力动态[J].东北林业大学学报,2010,38(8):36-38.
[12]陈伟,孟梦,李江,等.思茅松人工林土壤有机碳库特征[J].中国水土保持科学,2014,12(2):105-112.
[13]陈伟,孟梦,李江,等.云南热区4种林分土壤有机碳的比较研究[J].西部林业科学,2013,42(3):79-85.
[14]Kirschbaum MUF.Will changes in soil organic carbon act as a positive or negative feedback on global warming[J].Biogeochemistry,2000,48:21-51.
[15]杨劲峰,韩晓日,阴红彬,等.不同施肥条件对玉米生长季耕层土壤微生物量碳的影响[J].中国农学通报,2006,22(1):173-175.
[16]刘秉儒.贺兰山东坡典型植物群落土壤微生物量碳、氮沿海拔梯度的变化特征[J].生态环境学报,2010,19(4):883-888.
[17]Dilly O,Blume H P,Sehy U, et al.Variation of stabilized,microbial and biologically active carbon and nitrogen in soil under contrasting land use and agricultural management practices[J].Chemosphere,2003,52(3):557-569.
[18]蚁伟民,傅声雷,周存宇,等.鹤山人工林和鼎湖山自然林土壤微生物生物量的研究[J].生态学报,1995,15(增刊A):141-147.
[19]柯娴氡,张璐,苏志尧.粤北亚热带山地森林土壤有机碳沿海拔梯度的变化[J].生态与农村环境学报,2012,28(2):151-156.
[20]成毅,安韶山,马云飞.宁南山区不同坡位土壤微生物生物量和酶活性的分布特征[J].水土保持研究,2010,17(5):148-153.
[2]杨丽霞,潘剑君.土壤活性有机碳库测定方法研究进展[J].土壤通报,2004,35(4):502-506.
[3]王晶,张仁陟,李爱宗.耕作方式对土壤活性有机碳和碳库管理指数的影响[J].干旱地区农业研究,2008(6):8-12.
[4]柳敏,宇万太,姜子绍,等.土壤活性有机碳[J].生态学杂志,2006(11):1412-1417.
[5]何容,汪家社,施政,等.武夷山植被带土壤微生物量沿海拔梯度的变化[J].生态学报,2009,29(9):5138-5144.
[6]李延茂,胡江春,汪思龙,等.森林生态系统中土壤微生物的作用与应用[J].应用生态学报,2004,15(10):1943-1946.
[7]张地,张育新,曲来叶,等.坡位对东灵山辽东栎林土壤微生物量的影响[J].生态学报,2012,32(20):6412-6421.
[8]蒋云东,李思广,付玉嫔,等.思茅松人工林的高效经营模式及其效益分析[J].西部林业科学,2007,36(4):16-19.
[9]胡光辉,刘云彩,王忠祥,等.思茅松人工林主要虫害及其持续控制技术[J].西部林业科学,2007,36(4):34-40.
[10]翁海龙,陈宏伟,段安安.思茅松高产脂优树选择[J].西北林学院学报,2010,25(3):71-74.
[11]李江,孟梦,邱琼,等.思茅松中幼龄人工林生物量及生产力动态[J].东北林业大学学报,2010,38(8):36-38.
[12]陈伟,孟梦,李江,等.思茅松人工林土壤有机碳库特征[J].中国水土保持科学,2014,12(2):105-112.
[13]陈伟,孟梦,李江,等.云南热区4种林分土壤有机碳的比较研究[J].西部林业科学,2013,42(3):79-85.
[14]Kirschbaum MUF.Will changes in soil organic carbon act as a positive or negative feedback on global warming[J].Biogeochemistry,2000,48:21-51.
[15]杨劲峰,韩晓日,阴红彬,等.不同施肥条件对玉米生长季耕层土壤微生物量碳的影响[J].中国农学通报,2006,22(1):173-175.
[16]刘秉儒.贺兰山东坡典型植物群落土壤微生物量碳、氮沿海拔梯度的变化特征[J].生态环境学报,2010,19(4):883-888.
[17]Dilly O,Blume H P,Sehy U, et al.Variation of stabilized,microbial and biologically active carbon and nitrogen in soil under contrasting land use and agricultural management practices[J].Chemosphere,2003,52(3):557-569.
[18]蚁伟民,傅声雷,周存宇,等.鹤山人工林和鼎湖山自然林土壤微生物生物量的研究[J].生态学报,1995,15(增刊A):141-147.
[19]柯娴氡,张璐,苏志尧.粤北亚热带山地森林土壤有机碳沿海拔梯度的变化[J].生态与农村环境学报,2012,28(2):151-156.
[20]成毅,安韶山,马云飞.宁南山区不同坡位土壤微生物生物量和酶活性的分布特征[J].水土保持研究,2010,17(5):148-153.