Effects of Land Uses on Soil Organic Carbon and Carbon Pool Management Index

TANG Guo-yong; LI Kun; SUN Yong-yu; ZHANG Chun-hua

Volume 24 Issue 6

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Effects of Land Uses on Soil Organic Carbon and Carbon Pool Management Index

1.
Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming 650224, Yunnan, China
2.
Yuanmou Desertification Ecosystem Research Station, State Forestry Administration, Kunming 650224, Yunnan, China.

Received Date: 2011-06-25

Abstract

Carbon management index (ICM) is used to evaluate the scientificity of soil management. Soil organic carbon (SOC) and readily oxidized carbon (ROC) contents under Leucaena leucocephala stand, Acacia glauca stand, Acacia auriculiformis stand, Azadirachta indica stand, wasteland and dry cropland were determined and their ICM were calculated. The results showed that the SOC and ROC contents under the 6 land use types were 4.22-5.92 g·kg-1 and 1.34-2.33 g·kg-1, respectively. No significant differences in SOC contents among these land uses were observed. The ROC contents under the 4 types of woodland, however, were significantly higher than these under dry cropland or wasteland (PPR2 is 66.3%) with SOC. Compared with wasteland, the ICM ranged from 1.77 to 2.36 under these woodlands, and 0.99 under dry cropland. It is revealed that the litter quantity and land management under these land uses may be the key factors resulting in the variation of ROC. At ecological fragile region of Dry-hot Valley, closure management is useful to sequestrate C in woodland soils. However, the management systems for soil carbon pool under dry cropland are not in a sound way.
- Dry-hot Valley,
- soil organic carbon,
- readily oxidized carbon,
- carbon pool management index,
- land uses

References

[1]	Janzen H H. The soil carbon dilemma: Shall we hoard it or use it [J]. Soil Biology & Biochemistry, 2006, 38: 419-424
[2]	Blair G J, Lefroy R D. Soil carbon fractions based on their degree of oxidation and the development of a C management index for agricultural systems [J]. Austrian Journal of Agricultural Research, 1995, 46: 1459-1466
[3]	徐明岗,于荣,王伯仁. 长期不同施肥下红壤活性有机质与碳库管理指数变化[J]. 土壤学报,2006,43(5):723-729
[4]	Soon Y K, Arshad M A, Haq A, et al. The influence of 12 years of tillage and crop rotation on total and labile organic carbon in a sandy loam soil [J]. Soil Tillage Research, 2007, 95: 38-46
[5]	Belay-Tedla A, Zhou X H, Su B, et al. Labile, recalcitrant, and microbial carbon and nitrogen pools of a tallgrass prairie soil in the US Great Plains subjected to experimental warming and clipping [J]. Soil Biology & Biochemistry, 2009, 41: 110-116
[6]	王清奎,汪思龙,高洪,等. 土地利用方式对土壤有机质的影响[J]. 生态学杂志,2005,24 (4): 360-363
[7]	唐国勇,李昆,孙永玉,等. 干热河谷不同利用方式下土壤活性有机碳含量及其分配特征[J]. 环境科学,2010,31(5): 1365-1371
[8]	戴全厚,刘国彬,薛萐,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
[9]	Laik R, Kumar K, Das D K, et al. Labile soil organic matter pools in a calciorthent after 18 years of afforestation by different plantations [J]. Applied Soil Ecology, 2009,42: 71-78
[10]	吕国红,周广胜,周莉,等. 土壤溶解性有机碳测定方法与应用[J]. 气象与环境学报,2006,22(2):51-55
[11]	吴建国,张小全,徐德应. 六盘山林区几种土地利用方式下土壤活性有机碳的比较[J]. 植物生态学报,2004,28(5): 657-664
[12]	Lefroy R D, Blair G J, Strong W M. Changes in soil organic matter with cropping as measured by organic carbon fractions and ¹³C natural isotope abundance [J]. Plant & Soil, 1993, 155-156: 399-402
[13]	陈奇伯,王克勤,李艳梅,等. 金沙江干热河谷不同类型植被改良土壤效应研究[J]. 水土保持学报,2003,17(2): 67-70, 113
[14]	郭玉红,郎南军,和丽萍,等. 元谋干热河谷8种植被类型的林地土壤特性研究[J]. 西部林业科学,2007,36(2): 56-64
[15]	中国生态系统研究网络科学委员会. 陆地生态系统土壤观测规范[M]. 北京:中国环境科学出版社,2007
[16]	唐国勇,李昆,张昌顺. 施肥对干热河谷生态恢复区林木生长和土壤碳氮含量的影响[J]. 水土保持学报,2009,23(4):185-189
[17]	李昆,曾觉民. 元谋干热河谷地区不同造林树种对土壤的改良作用研究[J]. 西南林学院学报,1999,19(3): 161-164
[18]	刘淑珍,黄成敏,张建平,等. 云南元谋土地荒漠化特征及原因分析[J]. 中国沙漠,1996,16(1): 1-8
[19]	赵世伟,卢璐,刘娜娜,等. 子午岭林区生态系统转换对土壤有机碳特征的影响[J]. 西北植物学报,2006,26(5): 1030-1035
[20]	王淑平,周广胜,高素华,等. 中国东北样带土壤活性有机碳的分布及其对气候变化的响应[J]. 植物生态学报,2003,27(6): 780-785
[21]	贾国梅,张宝林,刘成,等. 三峡库区不同植被覆盖对土壤碳的影响[J]. 生态环境,2008,17(5): 2037-2040
[22]	曾从盛,钟春棋,仝川,等. 土地利用变化对闽江河口湿地表层土壤有机碳含量及其活性的影响[J]. 水土保持学报,2008,22(5): 125-129

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Effects of Land Uses on Soil Organic Carbon and Carbon Pool Management Index

1. Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming 650224, Yunnan, China

2. Yuanmou Desertification Ecosystem Research Station, State Forestry Administration, Kunming 650224, Yunnan, China.

Received Date: 2011-06-25

Available Online: 2011-12-13

Abstract: Carbon management index (ICM) is used to evaluate the scientificity of soil management. Soil organic carbon (SOC) and readily oxidized carbon (ROC) contents under Leucaena leucocephala stand, Acacia glauca stand, Acacia auriculiformis stand, Azadirachta indica stand, wasteland and dry cropland were determined and their ICM were calculated. The results showed that the SOC and ROC contents under the 6 land use types were 4.22-5.92 g·kg-1 and 1.34-2.33 g·kg-1, respectively. No significant differences in SOC contents among these land uses were observed. The ROC contents under the 4 types of woodland, however, were significantly higher than these under dry cropland or wasteland (PPR2 is 66.3%) with SOC. Compared with wasteland, the ICM ranged from 1.77 to 2.36 under these woodlands, and 0.99 under dry cropland. It is revealed that the litter quantity and land management under these land uses may be the key factors resulting in the variation of ROC. At ecological fragile region of Dry-hot Valley, closure management is useful to sequestrate C in woodland soils. However, the management systems for soil carbon pool under dry cropland are not in a sound way.

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Reference (22)

[1]	Janzen H H. The soil carbon dilemma: Shall we hoard it or use it [J]. Soil Biology & Biochemistry, 2006, 38: 419-424
[2]	Blair G J, Lefroy R D. Soil carbon fractions based on their degree of oxidation and the development of a C management index for agricultural systems [J]. Austrian Journal of Agricultural Research, 1995, 46: 1459-1466
[3]	徐明岗,于荣,王伯仁. 长期不同施肥下红壤活性有机质与碳库管理指数变化[J]. 土壤学报,2006,43(5):723-729
[4]	Soon Y K, Arshad M A, Haq A, et al. The influence of 12 years of tillage and crop rotation on total and labile organic carbon in a sandy loam soil [J]. Soil Tillage Research, 2007, 95: 38-46
[5]	Belay-Tedla A, Zhou X H, Su B, et al. Labile, recalcitrant, and microbial carbon and nitrogen pools of a tallgrass prairie soil in the US Great Plains subjected to experimental warming and clipping [J]. Soil Biology & Biochemistry, 2009, 41: 110-116
[6]	王清奎,汪思龙,高洪,等. 土地利用方式对土壤有机质的影响[J]. 生态学杂志,2005,24 (4): 360-363
[7]	唐国勇,李昆,孙永玉,等. 干热河谷不同利用方式下土壤活性有机碳含量及其分配特征[J]. 环境科学,2010,31(5): 1365-1371
[8]	戴全厚,刘国彬,薛萐,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
[9]	Laik R, Kumar K, Das D K, et al. Labile soil organic matter pools in a calciorthent after 18 years of afforestation by different plantations [J]. Applied Soil Ecology, 2009,42: 71-78
[10]	吕国红,周广胜,周莉,等. 土壤溶解性有机碳测定方法与应用[J]. 气象与环境学报,2006,22(2):51-55
[11]	吴建国,张小全,徐德应. 六盘山林区几种土地利用方式下土壤活性有机碳的比较[J]. 植物生态学报,2004,28(5): 657-664
[12]	Lefroy R D, Blair G J, Strong W M. Changes in soil organic matter with cropping as measured by organic carbon fractions and ¹³C natural isotope abundance [J]. Plant & Soil, 1993, 155-156: 399-402
[13]	陈奇伯,王克勤,李艳梅,等. 金沙江干热河谷不同类型植被改良土壤效应研究[J]. 水土保持学报,2003,17(2): 67-70, 113
[14]	郭玉红,郎南军,和丽萍,等. 元谋干热河谷8种植被类型的林地土壤特性研究[J]. 西部林业科学,2007,36(2): 56-64
[15]	中国生态系统研究网络科学委员会. 陆地生态系统土壤观测规范[M]. 北京:中国环境科学出版社,2007
[16]	唐国勇,李昆,张昌顺. 施肥对干热河谷生态恢复区林木生长和土壤碳氮含量的影响[J]. 水土保持学报,2009,23(4):185-189
[17]	李昆,曾觉民. 元谋干热河谷地区不同造林树种对土壤的改良作用研究[J]. 西南林学院学报,1999,19(3): 161-164
[18]	刘淑珍,黄成敏,张建平,等. 云南元谋土地荒漠化特征及原因分析[J]. 中国沙漠,1996,16(1): 1-8
[19]	赵世伟,卢璐,刘娜娜,等. 子午岭林区生态系统转换对土壤有机碳特征的影响[J]. 西北植物学报,2006,26(5): 1030-1035
[20]	王淑平,周广胜,高素华,等. 中国东北样带土壤活性有机碳的分布及其对气候变化的响应[J]. 植物生态学报,2003,27(6): 780-785
[21]	贾国梅,张宝林,刘成,等. 三峡库区不同植被覆盖对土壤碳的影响[J]. 生态环境,2008,17(5): 2037-2040
[22]	曾从盛,钟春棋,仝川,等. 土地利用变化对闽江河口湿地表层土壤有机碳含量及其活性的影响[J]. 水土保持学报,2008,22(5): 125-129

Effects of Land Uses on Soil Organic Carbon and Carbon Pool Management Index

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通讯作者: 陈斌, bchen63@163.com

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Effects of Land Uses on Soil Organic Carbon and Carbon Pool Management Index

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