...改变；两种湿地相比,各自植物根系特征、土壤理化性质对同一碳素的影响也不尽相同； (4)互花米草湿地土壤有机碳密度(SOC density)介于14.36～17.86 kg/m3,平均值为16.03 kg/m3,高于芦苇湿地(介于11.21-14.46 kg/m3,平均值为13.19 kg/m3)；互花米草湿地0-60cm土...
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...土壤有机碳密度 ; 土壤有机碳储量 [gap=2943]Key words : Yangtze Delta Plain ; village landscape ; ecotope ; soil organic carbon density ; soil organic carbon storage ..
基于12个网页-相关网页
结果表明：（1）土壤有机碳密度具有高度的空间变异性。
Result showed:1. The amount of carbon varied significantly at different districts in Shaan'Xi.
区域草地土壤有机碳密度及储量呈明显的水平和垂直分异规律。
The very cold environment results in the higher value of soil organic carbon density in the study area.
国内研究表明，目前耕地的地力不稳，土壤有机碳密度较低，农田土壤固碳的潜力较大。
All research results showed that the cultivated land fertility was unstable; density soil organic carbon was lower.
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