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无灌溉人工固沙区土壤有机碳及氮含量变异的初步结论
贾晓红, 周海燕, 李新荣
Primary Conclusion of Soil Organic Carbon and Total Nitrogen Variation in Planted Sand Regions Without Irrigation
JIA Xiao-hong, ZHOU Hai-yan, LI Xin-rong
中国沙漠 . 2004, (4): 437 -441 .