河套灌区不同秋浇年限对土壤细菌群落的影响
张晓丽1,张宏媛1,卢闯1,逄焕成1,靳存旺2,高喜3,程挨平3,李玉义1(
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Effects of the Different Autumn Irrigation Years on Soil Bacterial Community in Hetao Irrigation District
ZHANG XiaoLi1,ZHANG HongYuan1,LU Chuang1,PANG HuanCheng1,JIN CunWang2,GAO Xi3,CHENG AiPing3,LI YuYi1()
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图4. 土壤化学性质与细菌群落组成的主分量分析（a）及与细菌群落多样性的冗余分析（b）
DOC：可溶性有机碳;MBC：微生物量碳;SC：盐分;CK：盐荒地;AUI1：一直秋浇;AUI2：隔2—3年秋浇;AUI3：3—4年不秋浇;AUI4：6—7年不秋浇
Fig. 4. Principal component analyses (PCA) of bacterial community composition in soils from different treatments (a), and redundancy analyses (RDA) of the correlations between soil parameters and bacterial community diversity (b)
DOC: Soluble organic carbon; MBC: Microbial biomass carbon; SC: Salt; CK: Wasteland; AUI1: Always irrigation in autumn; AUI2: 2-3 years with autumn irrigation; AUI3: 3-4 years without autumn irrigation; AUI4: 6-7 years without autumn irrigation
