间伐强度对落叶松人工林土壤有机碳的影响
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摘要
以山河屯林业局凤凰山抚育所40年生落叶松人工林为研究对象,采用不同强度的间伐处理(间伐0%(CK)、15%(T1)、40%(T2))后,研究不同土层土壤有机碳储量、活性有机碳(水溶性有机碳、微生物有机碳、易氧化碳)的变化。结果表明:间伐处理提高了土壤有机碳储量,表现为CK(12.92 Mg/hm2)0.05)。微生物有机碳和易氧化碳均主要集中在0~10 cm土层;不同处理间均为T2含量最高,分别为982.00、20.52 g/kg。水溶性有机碳在0~10 cm土层差异不显著,但在其他土层(10~20、20~40、40~60 cm)差异显著(P<0.05),不同处理间T2含量也均最高,由上到下不同土层水溶性有机碳分别为51.59、52.99、37.83和31.87 mg/kg。研究表明:15%的弱度间伐更有利于东北落叶松人工林土壤有机碳的固定。
The 40-year-old Larix gmelinii plantation in Phoenix Mountain Tending Institute of Shanhetun Forestry Bureau was studied in this paper. The soil organic carbon( SOC),water soluble organic carbon( WSOC),readily oxidizable carbon( ROC),microbial biomass carbon( MBC) in Larix gmelinii plantation with different thinning intensities( CK: control,T1: 15% thinning intensity,T2: thinning intensity) were investigated. The results showed that thinning treatment increased the SOC storage,CK( 12. 92 Mg /ha2) < T2( 15. 82 Mg/ha2) < T1( 17. 87 Mg/ha2). Compared with the control,the thinning treatment increased the SOC storage by22. 41%( P < 0. 05) and 12. 98%( P > 0. 05),respectively. MBC and ROC ware mainly concentrated in 0- 10 cm soil layer,and the highest content of T2 between different treatments,were 982. 00 mg / kg and 20. 52 g / kg. WSOC in 0- 10 cm soil layer was not significantly different among the treatments,but in other layers( 10- 20 cm,20- 40 cm,40- 60cm) showed significant difference( P <0. 05). T2 between different treatments was the highest. WSOC of different layers from top to bottom were 51. 59,52. 99,37. 83,and 31. 87 mg / kg,respectively. In conclusion,15% intensity of thinning was more advantageous to the SOC sequestration of Larix gmelinii plantation in the northeast.
The 40-year-old Larix gmelinii plantation in Phoenix Mountain Tending Institute of Shanhetun Forestry Bureau was studied in this paper. The soil organic carbon( SOC),water soluble organic carbon( WSOC),readily oxidizable carbon( ROC),microbial biomass carbon( MBC) in Larix gmelinii plantation with different thinning intensities( CK: control,T1: 15% thinning intensity,T2: thinning intensity) were investigated. The results showed that thinning treatment increased the SOC storage,CK( 12. 92 Mg /ha2) < T2( 15. 82 Mg/ha2) < T1( 17. 87 Mg/ha2). Compared with the control,the thinning treatment increased the SOC storage by22. 41%( P < 0. 05) and 12. 98%( P > 0. 05),respectively. MBC and ROC ware mainly concentrated in 0- 10 cm soil layer,and the highest content of T2 between different treatments,were 982. 00 mg / kg and 20. 52 g / kg. WSOC in 0- 10 cm soil layer was not significantly different among the treatments,but in other layers( 10- 20 cm,20- 40 cm,40- 60cm) showed significant difference( P <0. 05). T2 between different treatments was the highest. WSOC of different layers from top to bottom were 51. 59,52. 99,37. 83,and 31. 87 mg / kg,respectively. In conclusion,15% intensity of thinning was more advantageous to the SOC sequestration of Larix gmelinii plantation in the northeast.
引文
[1]张仕吉,项文化,徐桂林.杉木林地不同更新方式土壤活性有机碳的分布及其碳库管理指数[J].水土保持学报,2009,23(4):213-217.
[2]Boerner R E J,Huang J J,Hart S C.Fire thinning and the carbon economy:Effects of fire and fire surrogate treatments on estimated carbon storage and sequestration rate[J].Forest Ecology and Management,2008,255(8):3081-3097.
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[8]Wang Q K,Wang S L.Response of labile soil organic matter to changes in forest vegetation in subtropical regions[J].Appl.Soil Ecol.,2011,47:210-216.
[9]袁喆,罗承德,李贤伟,等.间伐强度对川西亚高山人工云杉林土壤易氧化碳及碳库管理指数的影响[J].水土保持学报,2010,24(6):127-131.
[10]吴金水,林启美.土壤微生物量测定方法及其应用[M].北京:气象出版社,2006:54-59.
[11]张甲坤,陶澍,曹军.土壤中水溶性有机碳测定中的样品保存与前处理方法[J].土壤通报,2000,31(4):174-176.
[12]Bouwman A F,Leemans R,Mc Fee W W,et al.The role of forest soils in the global carbon cycle[A]:In:Mcfee W F,Kelly F M(eds)Carbon forms and functions in forest soils[C].Madison:Soil Science Society of America Inc.,1995:503-525.
[13]骆土寿,陈步峰,陈永富,等.海南岛霸王岭热带山地雨林采伐经营初期土壤碳氮储量[J].林业科学研究,2000,13(2):123-128.
[14]林娜,刘勇,李国雷,等.抚育间伐对人工林凋落物分解的影响[J].世界林业研究,2010,23(3):44-47.
[15]尉海东,马祥庆.不同发育阶段马尾松人工林生态系统碳贮量研究[J].西北农林科技大学学报(自然科学版),2007,35(1):171-174.
[16]邱雷,陈信力,丁辉,等.间伐对侧柏人工林土壤微生物生物量碳、氮的影响[J].江苏林业科技,2013,40(6):14-19.
[17]戴全厚,刘国彬,薛莛,等.侵蚀环境坡耕地改造对土壤活性有机碳与碳库管理指数的影响[J].水土保持通报,2008,28(4):17-21.
[18]沈润平,王海辉,连楚楚,等.稻田土壤有机质氧化稳定性与土壤肥力关系的研究[J].江西农业大学学报,1997,19(1),1-4.
[19]方晰,田大伦,项文化,等.杉木人工林土壤有机碳的垂直分布特征[J].浙江林学院学报,2004,21(4):418-423.
[20]李云红,张彦东,孙海龙.采伐干扰对东北温带次生林土壤碳矿化和活性有机碳的影响[J].水土保持学报,2009,23(6):139-143.
[2]Boerner R E J,Huang J J,Hart S C.Fire thinning and the carbon economy:Effects of fire and fire surrogate treatments on estimated carbon storage and sequestration rate[J].Forest Ecology and Management,2008,255(8):3081-3097.
[3]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.
[4]Haynes R J.Labile organic matter fractions as central components of the quality of agricultural soils:an overview[J].Adv.Agron,2005,85:221-268.
[5]Chen C R,Xu Z H,Mathers N J.Soil carbon pools in adjacent natural and plantation forests of subtropical Australia[J].Soil Sci.Soc.Am.J.,2004,68:282-291.
[6]Huang Z Q,Xu Z H,Chen C R,et al.Changes in soil carbon during the establishment of a hardwood plantation in subtropical Australia[J].For.Ecol.Manage.,2008,254:46-55.
[7]Li Y F,Jiang P K,Chang S X,et al.Organic mulch and fertilization affect soil carbon pools and forms under intensively managed bamboo(Phyllostachys praecox)forests in southeast China[J].J.Soil.Sediment,2010,10:739-747.
[8]Wang Q K,Wang S L.Response of labile soil organic matter to changes in forest vegetation in subtropical regions[J].Appl.Soil Ecol.,2011,47:210-216.
[9]袁喆,罗承德,李贤伟,等.间伐强度对川西亚高山人工云杉林土壤易氧化碳及碳库管理指数的影响[J].水土保持学报,2010,24(6):127-131.
[10]吴金水,林启美.土壤微生物量测定方法及其应用[M].北京:气象出版社,2006:54-59.
[11]张甲坤,陶澍,曹军.土壤中水溶性有机碳测定中的样品保存与前处理方法[J].土壤通报,2000,31(4):174-176.
[12]Bouwman A F,Leemans R,Mc Fee W W,et al.The role of forest soils in the global carbon cycle[A]:In:Mcfee W F,Kelly F M(eds)Carbon forms and functions in forest soils[C].Madison:Soil Science Society of America Inc.,1995:503-525.
[13]骆土寿,陈步峰,陈永富,等.海南岛霸王岭热带山地雨林采伐经营初期土壤碳氮储量[J].林业科学研究,2000,13(2):123-128.
[14]林娜,刘勇,李国雷,等.抚育间伐对人工林凋落物分解的影响[J].世界林业研究,2010,23(3):44-47.
[15]尉海东,马祥庆.不同发育阶段马尾松人工林生态系统碳贮量研究[J].西北农林科技大学学报(自然科学版),2007,35(1):171-174.
[16]邱雷,陈信力,丁辉,等.间伐对侧柏人工林土壤微生物生物量碳、氮的影响[J].江苏林业科技,2013,40(6):14-19.
[17]戴全厚,刘国彬,薛莛,等.侵蚀环境坡耕地改造对土壤活性有机碳与碳库管理指数的影响[J].水土保持通报,2008,28(4):17-21.
[18]沈润平,王海辉,连楚楚,等.稻田土壤有机质氧化稳定性与土壤肥力关系的研究[J].江西农业大学学报,1997,19(1),1-4.
[19]方晰,田大伦,项文化,等.杉木人工林土壤有机碳的垂直分布特征[J].浙江林学院学报,2004,21(4):418-423.
[20]李云红,张彦东,孙海龙.采伐干扰对东北温带次生林土壤碳矿化和活性有机碳的影响[J].水土保持学报,2009,23(6):139-143.