气候变化领域集成服务门户(CCPortal): Response of Soil CO2 Emissions to Straw-returning in Citrus/Mushroom Intercropping Systems [柑橘/大球盖菇套作下土壤CO2排放及其效率对秸秆还田量的响应]

CCPortal

DOI	10.13227/j.hjkx.201903276
	Response of Soil CO2 Emissions to Straw-returning in Citrus/Mushroom Intercropping Systems [柑橘/大球盖菇套作下土壤CO2排放及其效率对秸秆还田量的响应]
	You J.; Ni J.-P.; Huang R.; Zhang Y.; Xie D.-T.
发表日期	2019
ISSN	2503301
起始页码	4708
结束页码	4717
卷号	40 期号:10
英文摘要	Based on the pattern of citrus tree/stropharia mushrooms intercropping, returning-straw was used as the raw material for the stropharia mushrooms, and an in-situ experiment was conducted to monitor soil CO2 emissions under different dosage of straw application during the stropharia growth period. Soil CO2 emissions and the influencing factors were analyzed under different treatments of cultivated (HSM, ASM, and DSM) and uncultivated stropharia mushrooms (HS, AS, and DS). The mushroom yield and soil carbon emission efficiency (CEE) were used to provide a theoretical basis for improving the use of land under citrus orchards. The results showed that: ① Straw return increased the cumulative CO2 emissions compared with the control system (conventional planting, CK) and cumulative CO2 emissions increased with the dosage of straw application. Cumulative CO2 emissions from soil treated with cultivated stropharia mushrooms were higher than those from soil treated with uncultivated stropharia mushrooms, in the order of DSM (52.09 t•hm-2)>ASM (41.10 t•hm-2)>HSM (33.20 t•hm-2)>DS (27.15 t•hm-2)>AS (25.34 t•hm-2)>HS (18.94 t•hm-2)>CK (12.16 t•hm-2). Cumulative CO2 emissions under the DSM treatment significantly increased by 328.37% compared with CK. ② For the treatment of cultivated stropharia mushrooms, peak soil CO2 emissions occurred during the period of mycelium growth. The highest cumulative CO2emissions during this period were obtained under the DSM treatment and accounted for 43.27% of the total cumulative emissions. This was followed by ASM and HSM which accounted for 42.63% and 40.57% of emissions, respectively. ③ Cultivated stropharia mushrooms reduced the temperature sensitivity coefficient (Q10). The soil temperature (5 cm depth) had a significant effect on the soil CO2emission rate (P<0.01) but soil moisture did not (P>0.05). Soil temperature explained 27% to 71% of the variation in soil CO2emissions rates, and the two-factor fitting of soil temperature and soil moisture explained 36% to 82% of the variation. ④ For the treatment of cultivated stropharia mushrooms, the ranked yield of each treatment was DSM (49.7 t•hm-2)>ASM (47.0 t•hm-2)>HSM (23.3 t•hm-2), and ASM had the highest soil CEE (1.14). Therefore, under the system of citrus tree/stropharia mushroom intercropping, straw return can increase soil CO2 emissions, with the highest emissions being obtained when a double dosage of straw was applied. However, the optimal amount of straw still needs to be determined in combination with changes in soil nutrients and crop yields., Science Press. All right reserved.
英文关键词	Citrus; Intercropping; Soil CO2 emissions; Straw returning; Stropharia mushroom
scopus关键词	Forestry; Fungi; Soil moisture; Temperature; Citrus; CO2 emissions; Different treatments; Intercropping; Intercropping systems; Soil carbon emissions; Stropharia mushroom; Temperature sensitivity; Carbon dioxide; carbon dioxide; fertilizer; Agaricales; agriculture; China; Citrus; soil; Agaricales; Agriculture; Carbon Dioxide; China; Citrus; Fertilizers; Soil
来源期刊	Huanjing Kexue/Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/176319
作者单位	College of Resources and Environment, Southwest University, Chongqing, 400715, China; Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agriculture Sciences, Beijing, 100081, China
推荐引用方式 GB/T 7714	You J.,Ni J.-P.,Huang R.,等. Response of Soil CO2 Emissions to Straw-returning in Citrus/Mushroom Intercropping Systems [柑橘/大球盖菇套作下土壤CO2排放及其效率对秸秆还田量的响应][J],2019,40(10).
APA	You J.,Ni J.-P.,Huang R.,Zhang Y.,&Xie D.-T..(2019).Response of Soil CO2 Emissions to Straw-returning in Citrus/Mushroom Intercropping Systems [柑橘/大球盖菇套作下土壤CO2排放及其效率对秸秆还田量的响应].Huanjing Kexue/Environmental Science,40(10).
MLA	You J.,et al."Response of Soil CO2 Emissions to Straw-returning in Citrus/Mushroom Intercropping Systems [柑橘/大球盖菇套作下土壤CO2排放及其效率对秸秆还田量的响应]".Huanjing Kexue/Environmental Science 40.10(2019).