Relationships among Glomalin related soil protein, soc and soil texture under different land use types | 不同土地利用方式下球囊霉素相关土壤蛋白与有机碳及土壤质地的关系
2010
Zhu Fei, Hainan University, Haikou (China), College of agriculture | Zhao Qinghui, Hainan University, Haikou (China), College of agriculture | Deng Wangang, Hainan University, Haikou (China), College of agriculture
[Objective] The aim was to reveal the effects of different land use types on soil composition. [Method] GPRS, soil organic carbon content and soil texture in 3 depths (0-10, 10-20, 20-50 cm) of 5 main kind of selected land use type were examined in Hainan. [Result] The results showed that GRSP and SOC content of four artificial land use types decreased compared with the natural secondary forest land, the GRSP content of all samples ranged from 0.53-4.80 mg/g, accounting for 7.9%-23.4% of the SOC, which means that GRSP was one important component of SOC pool in soil. The ratio of GRSP to SOC was significantly different among land use types but the depths. GRSP and SOC exhibited obvious vertical distribution pattern. GRSP was significantly positively related to SOC and sand content but negatively related to silt and clay content. [Conclusion] The sand content determined the GRSP content significantly and loam was better matrix for GRSP accumulation than clay.
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