This paper dealt with the effects of cultivation on the carbon storage of three bamboo ecosystem by means of field survey. The results showed (1)biomass carbon storage of intensive Moso bamboo stand was significantly increased by 12.1 %, compared with that of extensive bamboo stand; biomass carbon storage of two Moso bamboo stand were significantly higher than that of the Phyllostachys praecox stand; and the annual amount of biomass carbon fixation of intensive and extensive Moso bamboo stand were 4.03 t/hm2 and 3.21 t/hm2 respectively, which meant that the annual carbon fixation amount of the former was 20.34 % higher than that of the latter; (2)soil carbon storage of intensive Moso bamboo stand was decreased by 18.7 %, while soil carbon storage of Ph.praecox stand was reduced by 46.9 %, compared with extensive Moso bamboo stand because of the physical effects of soil tillage, which resulted in enhancement of the soil respiration and decompose of soil carbon; (3)the total carbon storage of extensive Moso bamboo stand was increased by 13.9 %, compared with that of the intensive bamboo stand, because the reduced scope of soil carbon storage was higher than that of the vegetation carbon storage; and the total carbon storage of Phyllostachys praecox stand was apparently lower than that of the Moso bamboo stand; (4)in order to maintain sustainable management of bamboo stand, soil disturbance should be decreased to reduce the soil respiration by means of soil nontillage, soil clump or strip tillage, and in some case, organic fertilizer should be applied to bamboo stand, to fulfill the harmony between environment improvement and soil productivity maintenance.
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References
[1]Dixon R K, Brown S, Houghton R A, et al. Carbon pools and flux of global forest ecosystems[J]. Science, 1994, 263(5144): 185-190.
[2]吴建国,徐德应. 土地利用变化对土壤有机碳的影响[M]. 北京:中国林业出版社,2004.
[3]江泽慧,萧江华,许煌灿. 世界竹藤[M]. 辽宁:辽宁科学技术出版社,2002.
[4]郑郁善,洪伟.毛竹经营学[M]. 厦门:厦门大学出版社,1998.
[5]李正才,傅懋毅,徐德应. 竹林生态系统与大气二氧化碳减量[J]. 竹子研究汇刊,2003,22(4):1-6.
[6]陈先刚,张一平,张小全,等. 过去50年中国竹林碳储量变化[J]. 生态学报,2008,28(11):5218-5227.
[7]王兵,魏文俊,邢兆凯,等. 中国竹林生态系统的碳储量[J]. 生态环境,2008,17(4):1680-1684.
[8]肖复明,范少辉,汪思龙,等. 毛竹(Phyllostachys pubescens)、杉木(Cunninghamia lanceolata)人工林生态系统碳贮量及其分配特征[J]. 生态学报,2007,27(7):2794-2801.
[9]中国科学院南京土壤研究所. 土壤理化分析[M]. 上海:上海科学技术出版社,1978.
[10]李跃林,彭少麟,赵平,等. 鹤山几种不同土地利用方式的土壤碳储量研究[J]. 山地学报,2002,20(5):548-552.
[11]李凌浩. 土地利用变化对草原生态系统土壤碳贮量的影响[J]. 植物生态学报,1998,22(4):300-302.
[12]苏永中,赵哈林. 土壤有机碳储量、影响因素及其环境效应的研究进展[J]. 中国沙漠,2002,22(3):220-228.
[13]Bouwman A F, Leemans R. The role of forest soils in the global carbon cycle[J]. Soil Science Society of America Journal, 1995, 59(3): 503-525.
[14]Davidson E A, Ackermann I L. Changes in soil carbon inventories following cultivation of previously untilled soils[J]. Biogeochemistry, 1993, 20(3): 161-193.
[15]Studdert G A, Echeverria H E, Casanovas E M. Croppasture rotation for sustaining the quality and productivity of a typic argiudoll[J]. Soil Science Society of America Journal, 1997, 61(5): 1466-1472.
