Scientia Agricultura Sinica

Figure/Table detail

Quantitative Analysis of Driving-Factors of Soil Acidification in Qiyang County, Hunan Province

ZHOU HaiYan,XU MingGang,CAI ZeJiang,WEN ShiLin,WU HongHui

Scientia Agricultura Sinica, 2019, 52(8): 1400-1412. DOI: 10.3864/j.issn.0578-1752.2019.08.010

年份 Year	y = a - bx			H⁺净产量 H⁺ net production (kmol·hm^-2·a^-1)
年份 Year	a	b	R²	H⁺净产量 H⁺ net production (kmol·hm^-2·a^-1)
1991	5.70	0.0602	0.9698	5.02
1992	5.60	0.0631	0.9639	5.02
1993	5.40	0.0610	0.9855	5.02
1994	5.26	0.0650	0.9566	5.02
1995	5.30	0.0593	0.9551	5.02
1996	5.20	0.0701	0.9270	4.51
1997	4.60	0.0601	0.9359	4.51
1998	4.60	0.0603	0.9728	4.51
1999	4.30	0.0489	0.9639	4.51
2000	4.20	0.0400	0.9229	4.51
2001	4.30	0.0393	0.9566	3.76
2002	4.32	0.0593	0.9889	3.76
2003	4.31	0.0434	0.9387	3.76
2004	4.60	0.0439	0.9855	3.76
2005	4.46	0.0383	0.9591	3.76
2006	4.48	0.0292	0.9852	3.20
2007	4.33	0.0489	0.9607	3.20
2008	4.53	0.0373	0.9229	3.20
2009	4.50	0.0383	0.9579	3.20
2010	4.30	0.0312	09851	3.20
2011	4.38	0.0292	0.9889	3.11
2012	4.30	0.0219	0.9589	3.11

Table 10 Soil buffer capacity and H⁺ net production of wheat-corn long-term experiment in Qiyang County

Other figure/table from this article

Table 1 Element input of main crops and orange
Table 3 Input-output fluxes of N in typical agricultural systems
Table 5 Wood biomass, element contents in stem, branches and fruits for typical economic forests
Table 6 Grain dry matter yield and element contents for long term experiment of wheat-corn
Table 7 H⁺ production of acidity-inducing factors among the different land use patterns
Table 8 H⁺ production of acidity-inducing factors among the six main crop systems
Fig. 1 The changes of simulated value and measured value of soil pH in different years
Fig. 2 Comparison of simulated value and measured value of soil pH
Table 9 H⁺ production of acidity-inducing factors among the seven main woodland systems
Table 2 Grain dry matter yield and element contents in seeds and straws for typical crops
Table 4 Wood biomass, element contents in stem wood and branches for typical timber forests