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| DOI: | 10.11829/j.issn.1001-0629.2020-0251 |
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| Web URL(s): | http://cykx.lzu.edu.cn/article/doi/10.11829/j.issn.1001-0629.2020-0251
Last checked: 04/02/2021
http://cykx.lzu.edu.cn/article/doi/10.11829/j.issn.1001-0629.2020-0251?viewType=HTML
Last checked: 04/02/2021
Requires: HTML |
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| Publication Type:
| Refereed |
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| Author(s): | Yang, Shimei;
Zhang, Tao;
Zhao, Qiumei;
Gao, Xiaoye;
Wang, Zhiwei;
He, Tengbing |
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| Author Affiliation: | Yang, Zhang, He, and Zhao: College of Agriculture, Institute of New Rural Development, Guizhou University, Guiyang, Guizhou, China; Gao: College of Ecological and Environmental Engineering, Guizhou Minzu University, Guiyang, Guizhou, China; Wang: Guizhou Institute of Prataculture, Guiyang, Guizhou, China |
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| Title: | Factors influencing ecosystem respiration in different cultivated grassland ecosystems in Guiyang |
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| Source: | [Caoye Kexue] [Pratacultural Science]. Vol. 37, No. 11, 2020, p. 2211-2222. |
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| Publishing Information: | [Lanzhou Shi, China]: ["Cao Ye Ke Xue" Bian Jibu] |
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| # of Pages: | 12 |
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| Keywords: | Author-Supplied Keywords: Green grassland; Ecosystem respiration; Carbon cycle; Microbial carbon; Q10
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| Abstract/Contents: | "Urban grassland areas are expanding as urbanization accelerates, and their role in the regional carbon cycle is becoming increasingly important. The carbon emissions of urban grassland ecosystems hold significance for the construction of urban green spaces and low-carbon cities. We used the LI-8100 soil gas flux system to determine the ecosystem respiration (ER) and related hydrothermal factors of five common urban grassland ecosystems in Guiyang City from April to October 2018. We found that the ER showed obvious seasonal changes, with average emissions ranked as follows: Trifolium repens > Lolium perenne > Cynodon dactylon > Ophiopogon japonicus > Ophiopogon bodinieri. ER was positively correlated (P < 0.05) with soil temperature at 5 cm and air temperature, but negatively correlated (P < 0.05) with soil water content. The Q10 values of air temperature and soil temperature were 1.22~ 2.06 and 1.15~ 1.85, respectively. The cumulative emissions of Trifolium repens and Lolium perenne were significantly higher than those of Cynodon dactylon, Ophiopogon japonicus, and Ophiopogon bodinieri (P < 0.05). Cumulative ER emissions were significantly positively correlated (P < 0.05) with total soil nitrogen, aboveground biomass, soil microbial carbon, and soil urease. Our study shows that there are significant differences in CO2 emissions between different types of grasslands and that these are affected by multiple factors, such as hydrothermal conditions and soil nutrients, indicating that grass type should be taken into consideration in planning for low-carbon urban development. " |
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| Language: | Chinese (simplified) |
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| References: | 49 |
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| Note: | Abstract also appears in English
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Yang, S., T. Zhang, Q. Zhao, X. Gao, Z. Wang, and T. He. 2020. Factors influencing ecosystem respiration in different cultivated grassland ecosystems in Guiyang. (In Chinese (simplified)) [Caoye Kexue] [Pratacultural Science]. 37(11):p. 2211-2222. |
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| DOI: 10.11829/j.issn.1001-0629.2020-0251 |
| Web URL(s):
http://cykx.lzu.edu.cn/article/doi/10.11829/j.issn.1001-0629.2020-0251
Last checked: 04/02/2021
http://cykx.lzu.edu.cn/article/doi/10.11829/j.issn.1001-0629.2020-0251?viewType=HTML
Last checked: 04/02/2021
Requires: HTML |
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MSU catalog number: b10275836 |
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