北方农牧交错带中心支轴式灌溉模式对水土资源的影响 |
连杰, 冯静, 苏娜, 刘尚华, 张雷, 王新源, 张蕊, 吴明润 |
Effects of center-pivot irrigation on soil and water resources in the agro-pastoral ecotone of Northern China |
Jie Lian, Jing Feng, Na Su, Shanghua Liu, Lei Zhang, Xinyuan Wang, Rui Zhang, Mingrun Wu |
图4 地上生物量和生物量碳、氮、磷密度(置信水平α= 0.05) |
Fig.4 Aboveground biomass and biomass densities of carbon, nitrogen and phosphorus |
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