Dissolved organic carbon loss fluxes through runoff and sediment on sloping upland of purple soil in the Sichuan Basin

文献类型： 外文期刊

第一作者： Hua, Keke

作者： Hua, Keke;Zhu, Bo;Wang, Xiaoguo;Hua, Keke

作者机构：

关键词： Sloping upland;DOC loss;Overland flow;Interflow;Sediment

期刊名称：NUTRIENT CYCLING IN AGROECOSYSTEMS （ 影响因子：3.27； 五年影响因子：3.767 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Runoff is a major driver for dissolved organic carbon (DOC) diffusing into aquatic ecosystems. Transport of DOC in runoff is important in the C cycle of soils in an agricultural ecosystem. This study provides a combined dataset on DOC loss pathways and fluxes from sloping upland in the purple soil area of southwestern China. A free-drain lysimeter experiment was conducted to quantify DOC loss through overland flow (2010-2012), interflow (2010-2012) and sediment (2011-2012). Average annual cumulative discharges of overland and interflow were 58.3 +/- A 3.1 and 289.4 +/- A 5.4 mm, accounting for 6.8 and 33.8 % of the totals during the entire rainy season, respectively. Average annual cumulative sediment loss flux was 183.5 +/- A 14.6 g m(-2). Average DOC concentrations in overland flow and interflow were 3.44 +/- A 0.36 and 3.04 +/- A 0.24 mg L-1, respectively. Average DOC content in sediment was 73.76 +/- A 4.09 mg kg(-1). The relationship between DOC concentration and discharge in overland flow events could be described by a significant exponential decaying function (R = 0.53, P = 0.027). Average annual DOC loss fluxes through overland flow, interflow and sediment were 163.6 +/- A 28.5, 865.5 +/- A 82.5 and 9.4 +/- A 1.5 mg m(-2), respectively, and total DOC loss was 1,038.5 +/- A 112.5 mg m(-2). The results suggest that interflow is the major driver of DOC leaching loss on sloping upland. It is shown that interflow is fundamentally important for reducing DOC loss on sloping croplands in the Sichuan Basin and possibly beyond.

分类号： TQ44

  • 相关文献

[1]Grass hedges to reduce overland flow and soil erosion. Sardo, V. I.,Wu, J. Y.,Huang, D.,Teng, W. J..

[2]Characteristics of dissolved organic carbon leaching from hillslope cropland of purple soil in the Sichuan Basin, China. Li, Taikui,Zhu, Bo,Wang, Xiaoguo,Li, Taikui,Kou, Changlin. 2013

[3]Analysis of Pollution in Dianchi Lake and Consideration of Its Application in Crop Planting. Liu, Yanfang,Li, Yangang,Yang, Xiaohong,Zhang, Jianhua,Guan, Junjiao,Wang, Jiangmin,Zhang, Hui,Xu, Chuankun. 2012

[4]Enantioselective accumulation of chiral polychlorinated biphenyls in lotus plant (Nelumbonucifera spp.). Dai, Shouhui,Qiu, Jing,Wang, Min,Chai, Tingting,Fan, Li,Yang, Shuming,Dai, Shouhui,Qiu, Jing,Wang, Min,Chai, Tingting,Fan, Li,Yang, Shuming,Wong, Charles S.,Dai, Shouhui. 2014

[5]Distribution and sources of organic carbon, nitrogen and their isotopes in surface sediments from the largest mariculture zone of the eastern Guangdong coast, South China. Gu, Yang-Guang,Ning, Jia-Jia,Wang, Zeng-Huan,Gu, Yang-Guang,Ouyang, Jun,Ning, Jia-Jia,Wang, Zeng-Huan,Gu, Yang-Guang. 2017

[6]Particle size distribution and settling velocity of sediments in water diverted from the Yellow River during border-strip irrigation. Li, Jinshan,Fei, Liangjun,Li, Jinshan,Chen, Zhen,Sun, Xiulu. 2017

[7]Soil salinity in the irrigated area of the yellow river in Ningxia, China. Xiong, SY,Xiong, ZX,Wang, PW. 1996

[8]Distribution and risk assessment of metals in water, sediments, and wild fish from Jinjiang River in Chengdu, China. Liu, Xueping,Jiang, Jingyan,Yan, Yan,Deng, Biao,Ding, Sanglan,Su, Shijun,Sun, Weiyi,Li, Zhi,Gan, Zhiwei,Dai, YuanYuan. 2018

[9]DISTRIBUTION OF HEAVY METALS IN SURFACE SEDIMENTS FROM THE PEARL RIVER OUTLETS, SOUTH CHINA: FIVE-YEAR MONITORING PROGRAM. Zeng, Yanyi,Lai, Zini,Yang, Wanling,Li, Haiyan. 2018

[10]Methanogenic community compositions in surface sediment of freshwater aquaculture ponds and the influencing factors. Fan, Limin,Wu, Wei,Qiu, Liping,Song, Chao,Meng, Shunlong,Zheng, Yao,Hu, Gengdong,Li, Dandan,Chen, Jiazhang. 2018

[11]Vertical Segregation and Phylogenetic Characterization of Ammonia-Oxidizing Bacteria and Archaea in the Sediment of a Freshwater Aquaculture Pond. Lu, Shimin,Liu, Xingguo,Zeng, Xianlei,Shi, Xu,Gu, Zhaojun,Lu, Shimin,Liu, Qigen,Zeng, Xianlei,Ma, Zhuojun,Wu, Zongfan. 2016

[12]Determination of the malachite green in sediment by high performance liquid chromatography with fluorescence detection. Deng, Jianchao,Yang, Xianqing,Li, Laihao,Cen, Jianwei,Hao, Shuxian,Wei, Ya,Xin, Shaoping. 2013

[13]Bacterial diversity of gut content in sea cucumber (Apostichopus japonicus) and its habitat surface sediment. Gao Fei,Tan Jie,Sun Huiling,Yan Jingping. 2014

[14]Carbon and nitrogen isotopes analysis and sources of organic matter in surface sediments from the Sanggou Bay and its adjacent areas, China. Xia Bin,Cui Yi,Chen Bijuan,Cui Zhengguo,Qu Keming,Ma Feifei. 2014

[15]Phenolic compounds participating in mulberry juice sediment formation during storage. Zou, Bo,Xu, Yu-juan,Wu, Ji-jun,Yu, Yuan-shan,Xiao, Geng-sheng. 2017

[16]INFLUENCE OF PH, IONIC STRENGTH AND TEMPERATURE ON ADSORPTION OF ENDOSULFAN TO THE AQUACULTURE POND SEDIMENTS. Lin, Qin.

[17]The effects of sediment on Sargassum horneri in the early life stages on rocky subtidal reefs. Bi, Yuanxin,Feng, Meiping,Jiang, Rijin,Wang, Weiding,Wu, Zuli,Zhang, Shouyu,Feng, Meiping.

[18]The concentrating method of benthic diatom affects the growth of juvenile sea cucumber (Apostichopus japonicus) and water quality. Shi, Ce,Dong, Shuanglin,Li, Junwei,Wang, Fang,Gao, Qinfeng,Tian, Xiangli,Shi, Ce,Li, Junwei.

[19]Estimation of the detachment rate in eroding rills in flume experiments using an REE tracing method. Lei, Tingwu,Zhang, Qingwen,Lei, Tingwu,Zhao, Jun,Zhang, Qingwen,Lei, Tingwu,Zhao, Jun,Zhang, Qingwen.

[20]Polychlorinated biphenyls and organochlorine pesticides in surface sediments from the sand flats of Shuangtaizi Estuary, China: levels, distribution, and possible sources. Yuan, Xiutang,Yang, Xiaolong,Na, Guangshui,Zhang, Anguo,Liu, Guize,Wang, Lili,Zhang, Anguo,Mao, Yuze,Li, Xiaodong.

作者其他论文 更多>>

微信小程序