Impact of two centuries of intensive agriculture on soil carbon, nitrogen and phosphorus cycling in the UK.
Impact of two centuries of intensive agriculture on soil carbon, nitrogen and phosphorus cycling in the UK.
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DOI：
10.1016/j.scitotenv.2018.03.378
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发表时间：
2018-09-01
期刊：
影响因子：
--
通讯作者：
Whitmore AP
中科院分区：
文献类型：
--
作者：
Muhammed SE;Coleman K;Wu L;Bell VA;Davies JAC;Quinton JN;Carnell EJ;Tomlinson SJ;Dore AJ;Dragosits U;Naden PS;Glendining MJ;Tipping E;Whitmore AP
本文介绍了一个农业模型（Roth-CNP），估计碳（C），氮（N）和磷（P）池，池的变化，他们的平衡和养分输出的耕地和草地系统在英国在1800 - 2010年。Roth-CNP模型是作为集成模型（IM）的一部分开发的，通过松散耦合的陆地，水文和水化学模型来模拟整个英国的C，N和P循环。该模型使用来自Broadbalk（1843）和Park Grass（1856）的长期实验（LTE）数据进行校准和测试。以英国为研究对象，以5 km × 5 km网格为单位，利用作物耕地面积、牲畜数量及其管理方式，估算了英国耕地系统和草地系统的碳、氮、磷平衡及其输出通量。该模型估计作物和牧草产量，土壤有机碳（SOC）股票和营养盐通量的形式NH4-N，NO3-N和PO4-P。模拟的作物产量进行了比较，由国家农业统计报告的历史到当前的时期。总的来说，在本研究模拟的1800 - 1950年、1950 - 1970年和1970 - 2010年期间，英国可耕地的SOC损失分别为-0.18、-0.25和-0.08 Mg C ha-1 y-1，而改良草地SOC储量分别增加了0.20、0.47和0.24 Mg C ha-1 y-1。模拟的氮素流失（通过淋溶、径流、土壤侵蚀和反硝化作用）在不同时期在耕地（− 15、− 18和− 53 kg N ha − 1 y − 1）和草地（− 18、− 22和− 36 kg N ha − 1 y − 1）下都有所增加。1800 - 1950年、1950 - 1970年和1970 - 2010年，模拟的P盈余分别从耕地的2.6、10.8和18.1 kg P ha − 1 y − 1和草地的2.8、11.3和3.6 kg P ha − 1 y − 1增加。Roth-CNP模型估计了1800 - 2010年英国农业中的C、N和P循环。模拟的作物产量与英国农业统计的产量相当。模拟SOC储量在耕地下减少，在改良草地下增加。模拟N和P的损失增加耕地和草地。结果显示了在更大的空间和时间背景下的地方农业的影响。
This paper describes an agricultural model (Roth-CNP) that estimates carbon (C), nitrogen (N) and phosphorus (P) pools, pool changes, their balance and the nutrient fluxes exported from arable and grassland systems in the UK during 1800–2010. The Roth-CNP model was developed as part of an Integrated Model (IM) to simulate C, N and P cycling for the whole of UK, by loosely coupling terrestrial, hydrological and hydro-chemical models. The model was calibrated and tested using long term experiment (LTE) data from Broadbalk (1843) and Park Grass (1856) at Rothamsted. We estimated C, N and P balance and their fluxes exported from arable and grassland systems on a 5 km × 5 km grid across the whole of UK by using the area of arable of crops and livestock numbers in each grid and their management. The model estimated crop and grass yields, soil organic carbon (SOC) stocks and nutrient fluxes in the form of NH4-N, NO3-N and PO4-P. The simulated crop yields were compared to that reported by national agricultural statistics for the historical to the current period. Overall, arable land in the UK have lost SOC by −0.18, −0.25 and −0.08 Mg C ha−1 y−1 whereas land under improved grassland SOC stock has increased by 0.20, 0.47 and 0.24 Mg C ha−1 y−1 during 1800–1950, 1950–1970 and 1970–2010 simulated in this study. Simulated N loss (by leaching, runoff, soil erosion and denitrification) increased both under arable (−15, −18 and −53 kg N ha−1 y−1) and grass (−18, −22 and −36 kg N ha−1 y−1) during different time periods. Simulated P surplus increased from 2.6, 10.8 and 18.1 kg P ha−1 y−1 under arable and 2.8, 11.3 and 3.6 kg P ha−1 y−1 under grass lands 1800–1950, 1950–1970 and 1970–2010. Roth-CNP model estimates C, N and P cycling within the UK agriculture for 1800–2010. Simulated crop yields were comparable to the yields of UK's agricultural statistics. Simulated SOC stock decreased under arable and increased under improved grassland. Simulated N and P losses increased under both arable and grasslands. Results shows the effect of local agriculture in a larger context of space and time.
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影响因子：
4.9
作者：
BOHLOOL, BB;LADHA, JK;GEORGE, T
通讯作者：
GEORGE, T
影响因子：
64.8
作者：
Bellamy, PH;Loveland, PJ;Kirk, GJD
通讯作者：
Kirk, GJD
影响因子：
6.4
作者：
Bell, V. A.;Kay, A. L.;Reynard, N. S.
通讯作者：
Reynard, N. S.
影响因子：
2.1
作者：
Allen, Robert C.
通讯作者：
Allen, Robert C.
DOI：
10.1139/cjfas-54-10-2215
发表时间：
1997-10-01
影响因子：
2.4
作者：
D'Arcy, P;Carignan, R
通讯作者：
Carignan, R