Effect of drip irrigation water with different salinity on soil microbe of the Tarim Desert Highway shelter-forest
其他题名Effect of drip irrigation water with different salinity on soil microbe of the Tarim Desert Highway shelter-forest
Jin ZZ(靳正忠); Lei JQ(雷加强); Xu XW(徐新文); Li SY(李生宇)
2012-04-18
会议名称会议论文
会议录名称IEEE
页码988-993
会议日期2012-04-18
会议地点beijing
摘要Soil microbes in forest land are crucial to soil development and the production of available nutrients for forest trees in extreme arid areas. In this study, we used FAME and PCR-DGGE to study the effects of saline waters for drip irrigation on soil microbes in the shelter-belt along the Tarim Desert Highway in Northwest China. The main results revealed that differences in the soil microbial amounts, fatty acids and DNA segments among the shelter-belt lands drip-irrigated with different salinity waters were significant, and that the soil microbial amounts, diversities of fatty acid and DNA segments decreased with increasing water mineralization. Investigation of vertical differences in the soil microbial amount and fatty acid composition revealed that the maximum appeared at 5-30 cm, while the minimum was observed in the surface layer. The effects of the soil physical properties on the soil microbes were more notable than those of the nutrient contents. The salt composition form was dominated by Na+-Cl--SO42-, and the content of the SO42- was enhanced with increasing water mineralization. In conclusion, a high degree of mineralization of drip-irrigation water may cause the soil to harden and its quality to degrade gradually, which hinders the growth and development of forest soil microbes.
部门归属新疆策勒荒漠草地生态系统国家野外研究站
语种英语
文献类型会议论文
条目标识符http://ir.xjlas.org/handle/365004/11311
专题监测实验系统(野外台站)_新疆策勒荒漠草地生态系统国家野外研究站
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GB/T 7714
Jin ZZ,Lei JQ,Xu XW,et al. Effect of drip irrigation water with different salinity on soil microbe of the Tarim Desert Highway shelter-forest[C],2012:988-993.
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