Academic Journal
Marginal land conversion to perennial energy crops with biomass removal enhances soil carbon sequestration
| العنوان: | Marginal land conversion to perennial energy crops with biomass removal enhances soil carbon sequestration |
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| المؤلفون: | Yi Xu, Jie Zhou, Wenhao Feng, Rong Jia, Chunyan Liu, Tongchen Fu, Shuai Xue, Zili Yi, Thomas Guillaume, Yadong Yang, Leanne Peixoto, Zhaohai Zeng, Huadong Zang |
| المصدر: | GCB Bioenergy, Vol 14, Iss 10, Pp 1117-1127 (2022) |
| بيانات النشر: | Wiley, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Renewable energy sources |
| مصطلحات موضوعية: | 13C natural abundance, C3–C4 vegetation change, marginal land, Miscanthus, soil C sequestration, switchgrass, Renewable energy sources, TJ807-830, Energy industries. Energy policy. Fuel trade, HD9502-9502.5 |
| الوصف: | Abstract Marginal land conversion to perennial energy crops can provide biomass feedstocks and climate change mitigation. However, the effect of perennial energy crop cultivation on soil organic carbon (SOC) sequestration and its underlying mechanism in marginal land still remains incomplete. Here, SOC turnover, stability, and its potential sequestration were evaluated based on 10 years of land use change from C3 grass‐dominated marginal land to C4 energy crops Miscanthus and switchgrass cultivation. The naturally occurring 13C signature down to 60 cm depth was used to determine the energy crops‐derived C. Compared to reference marginal land, Miscanthus plantation increased the SOC stock at 0–60 cm depth by 17.8% and 64.3% in bulk and root zone, respectively. Similarly, the SOC stock under switchgrass was also 16.5% and 93.0% higher in bulk and root zone than in reference marginal land, respectively. The higher SOC stock in the root zone of switchgrass relative to Miscanthus was supported by the higher contribution of C4‐derived C to SOC (44.5% vs. 32.4%). The mean residence time of old C was higher under switchgrass than Miscanthus in the bulk zone across 0–60 cm (p |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1757-1707 1757-1693 |
| Relation: | https://doaj.org/toc/1757-1693; https://doaj.org/toc/1757-1707 |
| DOI: | 10.1111/gcbb.12990 |
| URL الوصول: | https://doaj.org/article/8cb1a9c0d18b4172b1cb891b53fc2345 |
| رقم الانضمام: | edsdoj.8cb1a9c0d18b4172b1cb891b53fc2345 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 17571707 17571693 |
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| DOI: | 10.1111/gcbb.12990 |