Soil physical and chemical properties, soil temperature and
humidity, and companion species in four habitats (Experiment 2)
Soil physical and chemical properties showed little difference among
different habitats; however, the soil total nitrogen levels in farmland
ecotones and roadsides were higher and lower, respectively, than those
in other habitats. The contents of available phosphorus and available
potassium in grasslands were lower than those in other habitats. Soil
organic matter content in grasslands was higher than that in other
habitats (Table 1).
In SP, the soil temperature of farmland was significantly higher than in
other habitats, and that of grassland was significantly lower than in
other habitats; in GP, the soil temperatures of grassland and roadside
were significantly lower than those of other habitats; in FFP, the
roadside temperature was significantly lower than those of other
habitats. The soil moisture in different habitats showed significant
differences in different periods, and the values of soil moisture were
ranked as follows: grassland > farmland
ecotone> residential area> roadside (Fig. 3).
The types of companion species in farmland ecotones, residential areas
and roadsides were similar and quite different from those of grassland
(Table 2).