Relationships of soil organic carbon (SOC) and inorganic carbon (SIC) among different methods.

<p>Relationships of soil organic carbon (SOC) and inorganic carbon (SIC) among different methods.</p

Liner relationship for SIC between the CNS analyzer and LOI method.

<p>Liner relationship for SIC between the CNS analyzer and LOI method.</p

Sampling area with locations of 15 soil profiles.

<p>Solid stars denote the sites where topsoil texture was determined.</p

Relationship between SOC calculated by the LOI method and SOC measured by the Walkley-Black method.

<p>Relationship between SOC calculated by the LOI method and SOC measured by the Walkley-Black method.</p

Means and standard deviations (in brackets) of soil pH, bulk density (BD, g kg⁻¹) and electrical conductivity (EC, ms cm⁻¹) for each layer, and clay, silt and sand contents (%) of topsoil (0–30 cm) from 8 randomly selected soil profiles.

<p>Means and standard deviations (in brackets) of soil pH, bulk density (BD, g kg⁻¹) and electrical conductivity (EC, ms cm⁻¹) for each layer, and clay, silt and sand contents (%) of topsoil (0–30 cm) from 8 randomly selected soil profiles.</p

Liner relationship for SIC by the CNS analyzer and pressure calcimeter method.

<p>Liner relationship for SIC by the CNS analyzer and pressure calcimeter method.</p

Linear regression of measured SOC by the CNS analyzer and Walkley-Black method.

<p>Linear regression of measured SOC by the CNS analyzer and Walkley-Black method.</p

2,5-Oxyarylation of Furans: Synthesis of Spiroacetals via Palladium-Catalyzed Aerobic Oxidative Coupling of Boronic Acids with α‑Hydroxyalkylfurans

A protocol for the 2,5-oxyarylation of furan rings via Pd-catalyzed aerobic oxidative coupling of boronic acids with α-hydroxyalkylfurans is reported. This protocol provides rapid, green access to diverse biologically interesting and synthetically useful unsaturated spiroacetals from sustainable furan derivatives

Correlationship between simulated and observed crop (i.e.,□wheat and ▪corn) grain yield data under the control, N, NP, NPK, NPKM, hNPKM and NPKS treatments at (A) Changping, (B) Yangling, and (C) Qiyang sites.

<p>Correlationship between simulated and observed crop (i.e.,□wheat and ▪corn) grain yield data under the control, N, NP, NPK, NPKM, hNPKM and NPKS treatments at (A) Changping, (B) Yangling, and (C) Qiyang sites.</p

Average monthly precipitation, maximum (Tmax) and minimum (Tmin) temperatures from 1990 to 2010 at (A) Changping, (B) Yangling, and (C) Qiyang.

<p>Error bars are standard deviations for the mean values from 1990–2010.</p