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Response of Artificial Grassland Carbon Stock to Management in Mountain Region of Southern Ningxia, China

TANG Long DANG Xiaohu LIU Guobin SHAO Chuanke XUE Sha

TANG Long, DANG Xiaohu, LIU Guobin, SHAO Chuanke, XUE Sha. Response of Artificial Grassland Carbon Stock to Management in Mountain Region of Southern Ningxia, China[J]. 中国地理科学, 2014, (4): 436-443. doi: 10.1007/s11769-014-0705-2
引用本文: TANG Long, DANG Xiaohu, LIU Guobin, SHAO Chuanke, XUE Sha. Response of Artificial Grassland Carbon Stock to Management in Mountain Region of Southern Ningxia, China[J]. 中国地理科学, 2014, (4): 436-443. doi: 10.1007/s11769-014-0705-2
TANG Long, DANG Xiaohu, LIU Guobin, SHAO Chuanke, XUE Sha. Response of Artificial Grassland Carbon Stock to Management in Mountain Region of Southern Ningxia, China[J]. Chinese Geographical Science, 2014, (4): 436-443. doi: 10.1007/s11769-014-0705-2
Citation: TANG Long, DANG Xiaohu, LIU Guobin, SHAO Chuanke, XUE Sha. Response of Artificial Grassland Carbon Stock to Management in Mountain Region of Southern Ningxia, China[J]. Chinese Geographical Science, 2014, (4): 436-443. doi: 10.1007/s11769-014-0705-2

Response of Artificial Grassland Carbon Stock to Management in Mountain Region of Southern Ningxia, China

doi: 10.1007/s11769-014-0705-2
基金项目: Under the auspices of Strategic Priority Research Program of Chinese Academy of Sciences (No. XDA05000000), National Natural Science Foundation of China (No. 41271518), Sci-technology Project of Shaanxi Province (No. 2013kw19-01)
详细信息
    通讯作者:

    DANG Xiaohu

Response of Artificial Grassland Carbon Stock to Management in Mountain Region of Southern Ningxia, China

Funds: Under the auspices of Strategic Priority Research Program of Chinese Academy of Sciences (No. XDA05000000), National Natural Science Foundation of China (No. 41271518), Sci-technology Project of Shaanxi Province (No. 2013kw19-01)
More Information
    Corresponding author: DANG Xiaohu
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出版历程
  • 收稿日期:  2014-01-17
  • 修回日期:  2014-04-25
  • 刊出日期:  2014-05-27

Response of Artificial Grassland Carbon Stock to Management in Mountain Region of Southern Ningxia, China

doi: 10.1007/s11769-014-0705-2
    基金项目:  Under the auspices of Strategic Priority Research Program of Chinese Academy of Sciences (No. XDA05000000), National Natural Science Foundation of China (No. 41271518), Sci-technology Project of Shaanxi Province (No. 2013kw19-01)
    通讯作者: DANG Xiaohu

摘要: Grassland is a major carbon sink in the terrestrial ecosystem. The dynamics of grassland carbon stock profoundly influence the global carbon cycle. In the published literatures so far, however, there are limited studies on the long-term dynamics and influential factors of grassland carbon stock, including soil organic carbon. In this study, spatial-temporal substitution method was applied to explore the characteristics of Medicago sativa L.(alfalfa) grassland biomass carbon and soil organic carbon density (SOCD) in a loess hilly region with different growing years and management patterns. The results demonstrated that alfalfa was the mono-dominant community during the cutting period (viz. 0-10 year). Community succession began after the abandonment of alfalfa grassland and then the important value of alfalfa in the community declined. The artificial alfalfa community abandoned for 30 years was replaced by the S. bungeana community. Accordingly, the biomass carbon density of the clipped alfalfa showed a significant increase over the time during 0-10 year. During 0-30 year, the SOCD from 0-100 cm of the soil layer of all 5 management patterns increased over time with a range between 5.300 ± 0.981 kg/m2 and 12.578 ± 0.863 kg/m2. The sloping croplands had the lowest SOCD at 5.300 ± 0.981 kg/m2 which was quite different from the abandoned grasslands growing for 30 years which exhibited the highest SOCD with 12.578 ± 0.863 kg/m2. The ecosystem carbon density of the grassland clipped for 2 years increased 0.1 kg/m2 compared with the sloping cropland, while that of the grassland clipped for 10 years substantially increased to 10.30 ± 1.26 kg/m2. Moreover, the ecosystem carbon density for abandoned grassland became 12.62 ± 0.50 kg/m2 at 30 years. The carbon density of the grassland undisturbed for 10 years was similar to that of the sloping cropland and the grassland clipped for 2 years. Different management patterns imposed great different effects on the accumulation of biomass carbon on artificial grasslands, whereas the ecosystem carbon density of the grassland showed a slight increase from the clipping to abandonment of grassland in general.

English Abstract

TANG Long, DANG Xiaohu, LIU Guobin, SHAO Chuanke, XUE Sha. Response of Artificial Grassland Carbon Stock to Management in Mountain Region of Southern Ningxia, China[J]. 中国地理科学, 2014, (4): 436-443. doi: 10.1007/s11769-014-0705-2
引用本文: TANG Long, DANG Xiaohu, LIU Guobin, SHAO Chuanke, XUE Sha. Response of Artificial Grassland Carbon Stock to Management in Mountain Region of Southern Ningxia, China[J]. 中国地理科学, 2014, (4): 436-443. doi: 10.1007/s11769-014-0705-2
TANG Long, DANG Xiaohu, LIU Guobin, SHAO Chuanke, XUE Sha. Response of Artificial Grassland Carbon Stock to Management in Mountain Region of Southern Ningxia, China[J]. Chinese Geographical Science, 2014, (4): 436-443. doi: 10.1007/s11769-014-0705-2
Citation: TANG Long, DANG Xiaohu, LIU Guobin, SHAO Chuanke, XUE Sha. Response of Artificial Grassland Carbon Stock to Management in Mountain Region of Southern Ningxia, China[J]. Chinese Geographical Science, 2014, (4): 436-443. doi: 10.1007/s11769-014-0705-2
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