农业与技术2026，Vol.46Issue(5)：21-28,8.DOI:10.19754/j.nyyjs.20260530004
有机肥施用量对乌兰布和沙漠沙生植物生长及风沙土水肥保持的影响
The Influence of Organic Fertilizer Application Amount on the Growth of Xerophytic Plants in the Ulan Buh Desert and the Retention of Water,Soil and Nutrients in Sandy Soil
摘要
Abstract
To clarify the improvement effect of organic fertilizer on aeolian sandy soil in the Ulan Buh Desert and psammophyte growth response,and provide support for desertification control and vegetation restoration,this study conducted pot experiments with Caragana korshinskii and Ammopiptanthus mongolicus under 4 treatments(CK,F1,F2,F3).It analyzed the effects on plant growth and rhizosphere soil physicochemical properties,and evaluated improvement efficiency via correlation and PCA.Results showed significant species-specific differences in psammophyte responses;organic fertilizer optimized soil properties(F3 best,F1 regulating bulk density appropriately,chemical improvement with obvious threshold).PCA indicated the first two principal components(cumulative variance 85.76%)characterized soil and plant indicators.F2 had the optimal balance of effect,cost and adaptability,identified as the optimal gradient for large-scale application,providing theoretical and technical support for precise soil improvement and sand-fixing plant cultivation in the study area and similar arid regions.关键词
有机肥/乌兰布和沙漠/沙生植物/土壤理化性质/持水保肥Key words
organic fertilizer/Ulan Buh Desert/psammophytes/soil physicochemical properties/water and nutrient retention分类
农业科技引用本文复制引用
郝军,周俐青,姚鑫宇,李燕南,代百春,包海龙..有机肥施用量对乌兰布和沙漠沙生植物生长及风沙土水肥保持的影响[J].农业与技术,2026,46(5):21-28,8.基金项目
2023年国家草业技术创新中心(筹)重大创新平台建设专项(项目编号:CCPTZX2023N01) （筹）
