This has allowed us to locate many polymorphisms which are differentiated between soil types, including excellent candidates for adaptation to soil conditions.
CH4 fluxes are greater from mineral than organic soils, whereas CO2 fluxes do not differ between soil types.
The two cropping systems were not evenly distributed between the different soil types, with proportionately more fields with crop rotation on clay soils and sandy clay soils, and more fields with monocultures on sandy soils (Table 3).
Although the quantity of DOM differed considerably between treatments, its bioavailability (45% on average; measured using a 7-day bioassay at 20 °C) was similar across treatments and soil types, with good correspondence between carbohydrate-C and bioavailable C. Large base type effects on organically bound nutrients (dissolved organic N, P, and S) were also observed (KOH ≫ Ca(OH 2).
No interactions (P > 0.05) were detected between the two greenhouse experiments with either soil type or VC rate, and between soil type and VC rate for most tomato growth responses (data not presented).
Differences between soil type origin by salinity destination combinations were tested using Tukey post-hoc tests.
The competitive balance between V. americana and M. perforata varied depending on soil type, with V. americana dominating in PMM and M. perforata dominating in FFMM.
No clear influence of soil-type grouping on amounts of SOC was revealed, between soil-type groups (soil type).
In general, leaf elements showed small but significant differences between the two soil types, in line with contrasting soil pH, whereas the foliar manganese (Mn) was 125 times higher, and calcium (Ca) and magnesium (Mg) 45 and 43 % lower, respectively, on the acidic soil.
Beech, however, showed no significant change at the tree crown level and a lesser increase in individual leaf biomass with significant differences between both soil types.
