中国农业期刊集成服务平台

当前位置: 首页 > 文章 > Soil Organic Carbon, Black Carbon, and Enzyme Activity Under Long-Term Fertilization 农业科学学报 (英文) 2014,13 (3)

Position: Home > Articles > Soil Organic Carbon, Black Carbon, and Enzyme Activity Under Long-Term Fertilization Journal of Integrative Agriculture 2014,13 (3)

Soil Organic Carbon, Black Carbon, and Enzyme Activity Under Long-Term Fertilization

作者：

Shao Xing-hua;Zheng Jian-wei

单位：

Shangrao Normal Univ, Dept Life Sci, Shangrao 334001, Jiangxi, Peoples R China

关键词：

organic carbon;black carbon;enzyme activity;fertilization

摘要：

The present study aims to understand the effects of long-term fertilization on soil organic carbon (SOC), black carbon (BC), enzyme activity, and the relationships among these parameters. Paddy field was continuously fertilized over 30 yr with nine different fertilizer treatments including N, P, K, NP, NK, NPK, 2NPK (two-fold NPK), NPK+manure (NPKM), and CK (no fertilization), N, 90 kg urea-N ha(-1) yr(-1); P, 45 kg triple superphosphate-P2O5 ha(-1) yr(-1); K, 75 kg potassium chloride-K2O ha(-1) yr(-1); and pig manure, 22 500 kg ha(-1) yr(-1). Soil samples were collected and determined for SOC, BC content, and enzyme activity. The results showed that the SOC in the NPKM treatment was significantly higher than those in the K, P, and CK treatments. The lowest SOC content was found in the CK treatment. SOC content was similar in the N, NP, NK, NPK, 2NPK, and NPKM treatments. There was no significant difference in BC content among different treatments, The BC-to-SOC ratios (BC/SOC) ranged from 0.50 to 0.63, suggesting that BC might originate from the same source. Regarding enzyme activity, NPK treatment had higher urease activity than NPKM treatment. The urease activity of NPKM treatment was significantly higher than that of 2NPK, NP, N, P, K, CK, and NPKM treatment which produced higher activities of acid phosphatase, catalase, and invertase than all other treatments. Our results indicated that long-term fertilization did not significantly affect BC content. Concurrent application of manure and mineral fertilizers increased SOC content and significantly enhanced soil enzyme activities. Correlation analysis showed that catalase activity was significantly associated with invertase activity, but SOC. BC, and enzyme activity levels were not significantly correlated with one another. No significant correlations were observed between BC and soil enzymes. It is unknown whether soil enzymes play a role in the decomposition of BC.

相似文章

Drought stress induces flowering and enhances carbohydrate accumulation in Averrhoa carambola. [Wu PingPing, Wu ChuBin, Zhou BiYan] 园艺学报(英文版) 2017,3 (2)
Distribution of soil organic carbon fractions along the altitudinal gradient in Changbai Mountain, China. [Zhang Min, Zhang XiaoKe, Liang WenJu, Jiang Yong, Dai GuanHua, Wang XuGao, Han ShiJie] 土壤圈(英文版) 2011,21 (5)
Soil organic carbon loss and turnover resulting from forest conversion to maize fields in eastern Thailand. [Jaiarree, S., Chidthaisong, A., Tangtham, N., Polprasert, C., Sarobol, E., Tyler, S. C.] 土壤圈(英文版) 2011,21 (5)
Evaluating the effect of tillage on carbon sequestration using the minimum detectable difference concept. [Yang XM, Drury CF, Wander MM, Kay BD] 土壤圈(英文版) 2008,18 (4)
Water-extractable carbon pools and microbial biomass carbon in sodic water-irrigated soils amended with gypsum and organic manures. [Choudhary, O. P., Gill, J. K., Bijay-Singh] 土壤圈(英文版) 2013,23 (1)
Accumulation of Organic Matter in Infertile Red Soils and Its Ecological Importance [LI ZHONGPEI, CHENG LILI, LIN XINXIONG] 土壤圈(英文版) 2000,10 (2)
Organochlorine pesticides (OCPs) in soils along the eastern slope of the Tibetan Plateau. [Xing XinLi, Qi ShiHua, Zhang Yuan, Yang Dan, Odhiambo, J. O.] 土壤圈(英文版) 2010,20 (5)
Spatial heterogeneity of soil nutrients and respiration in the desertified grasslands of Inner Mongolia, China. [Qi YuChun, Dong YunShe, Jin Zhao, Peng Qin, Xiao ShengSheng, He YaTing] 土壤圈(英文版) 2010,20 (5)
Selective extraction methods for aluminium, iron and organic carbon from montane volcanic ash soils. [Jansen, B., Tonneijck, F. H., Verstraten, J. M.] 土壤圈(英文版) 2011,21 (5)
National scale analysis of soil organic carbon storage in China based on Chinese Soil Taxonomy. [Yu DongSheng, Shi XueZheng, Wang HongJie, Sun WeiXia, Warner E D, Liu QingHua] 土壤圈(英文版) 2007,17 (1)

导出引用

计量

文章访问数: 6

HTML全文浏览量: 0

PDF下载量: 0

Soil Organic Carbon, Black Carbon, and Enzyme Activity Under Long-Term Fertilization

相似文章

所属期刊

农业科学学报 (英文)

推荐期刊

林业研究(英文版)

土壤圈(英文版)