Long-term effects of reclamation on A) EC, B) salinity, and C) pH of coastal soils.

<p>* and ** indicate significant difference at <i>p</i><0.05 and <i>p</i><0.01 level, respectively.</p

Long-term effects of agricultural cultivation on the compositions of A) cations and B) anions.

<p>Long-term effects of agricultural cultivation on the compositions of A) cations and B) anions.</p

Long-term influences of reclamation on stratification ratios of A) SOC, B) TN, and C) TP.

<p>* and ** indicate significant difference at <i>p</i><0.05 and <i>p</i><0.01 level, respectively.</p

Long-term effects of reclamation on A) SOC, B) TN, and C) TP of the coastal marsh.

<p>* and ** indicate significant difference at <i>p</i><0.05 and <i>p</i><0.01 level, respectively.</p

Nitrogen and phosphorus inputs of organic and chemical fertilizer applications in 2007 (source from the reference [24]).

<p>Nitrogen and phosphorus inputs of organic and chemical fertilizer applications in 2007 (source from the reference <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0093727#pone.0093727-Zhu1" target="_blank">[24]</a>).</p

Organic and chemical fertilizer applications during 1950s–1990s (source from the reference [23]).

<p>Organic and chemical fertilizer applications during 1950s–1990s (source from the reference <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0093727#pone.0093727-Liu1" target="_blank">[23]</a>).</p

Long-term effects of reclamation on A) SAR, B) ESP, and C) RSC of the coastal marsh.

<p>^* indicates significant difference at <i>p</i><0.05.</p