Anxi County Research Articles

Microbial biomass and activity in salt affected soils under arid conditions

The effects of salinity on the size, activity and community structure of soil microorganisms in salt affected arid soils were investigated in Shuangta region of west central Anxi County, Gansu Province, China. Eleven soils were selected which had an electrical conductivity (EC) gradient of 0.32–23.05 mS cm −1. There was a significant negative exponential relationship between EC and microbial biomass C, the percentage of soil organic C present as microbial biomass C, microbial biomass N, microbial biomass N to total N ratio, basal soil respiration, fluorescein diacetate (FDA) hydrolysis rate, arginine ammonification rate and potentially mineralizable N. The exponential relationships with EC demonstrate the highly detrimental effect that soil salinity had on the microbial community. In contrast, the metabolic quotient ( qCO 2) was positively correlated with EC, and a quadratic relationship between qCO 2 and EC was observed. There was an inverse relationship between qCO 2 and microbial biomass C. These results indicate that higher salinity resulted in a smaller, more stressed microbial community which was less metabolically efficient. The biomass C to biomass N ratio tended to be lower in soils with higher salinity, reflecting the bacterial dominance in microbial biomass in saline soils. Consequently, our data suggest that salinity is a stressful environment for soil microorganisms.

The changing moral economy of ancestor worship in a Chinese emigrant district.

This paper describes the reciprocal influences between Anxi County Fujianese, whose families and clans have migrated to Singapore, and their ancestral villages in Fujian, China. The Singaporeans bring wealth and cultural capital to their poor relations in rural China. Their participation is crucial for local socioeconomic development. Besides bringing material support and globalizing values and lifestyles, they also reinvigorate and transform the local religious tradition. They, in turn, reaffirm and even remake their own ethnic and regional identity. The complex outcome illustrates the fact that China's social change under economic reforms and global influence is, in its huge rural core, not merely a matter of infrastructural, market, and social welfare improvements, but involves exchange and transformation in meanings of rituals and experiences. We can see that kinship and religion are not unchanging aspects of the cultural tradition that are separate from programs of modernity. Indeed, modernity and tradition appear to be inseparable, and they may reveal that the recipe for effective community projects requires a vital tie between cultural, social, and interpersonal processes.