[Determination of 15 carbonyl compounds in soil using improved solid phase extraction-high performance liquid chromatography]. [PDF]
Se Pu, 2023 Xue KP +7 more
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黄土高原不同类型旱区苜蓿草地水分生产潜力与土壤干燥化效应模拟
, 2007 在模型验证和数据库组建基础上,用WinEPIC模型定量模拟研究了黄土高原半湿润区长武、半干旱区固原和半干旱偏旱区海原20～30年内苜蓿草地水分生产潜力、10m土层土壤有效含水量和土壤湿度剖面分布特征的动态变化.结果表明:长武、固原和海原苜蓿草地水分生产潜力模拟值随降水量变化而呈现波动性降低趋势,其平均值分别为8.81、3.83和2.48t.hm-2;长武、固原和海原苜蓿草地10m土层逐月土壤有效含水量模拟值均呈现明显的波动性降低趋势,模拟初期,4～8年生苜蓿草地土壤干燥化趋势十分强烈,此后 ...
李军 +4 more
core
, 2009 通过野外定位观测和室内分析,探讨了松嫩平原盐渍化区土壤的微域特征.结果表明:研究区由高平地、微坡地、洼地边缘和洼地4种微地貌单元组成.洼地发育均腐土,洼地边缘、微坡地和高平地发育碱积盐成土.高平地土壤的碱土碱化层出现在15～30cm,碱化度(ESP)60%.微坡地土壤表层的ESP最大可达75%.洼地边缘的ESP分布在10～30cm土层,最大为30%～40%.洼地的土壤几乎没有碱化层.研究区不同微地貌部位发育的土壤水分特征曲线存在明显差异.微坡地土壤饱和含水率最大仅为25%,而洼地土壤0 ...
张晓平 +4 more
core
, 2007 黄土高原半干旱区土壤蒸发强烈,准确地掌握土壤水分动态对于旱地农业水分管理至关重要。应用基于物理基础的一维水热耦合SHAW(The Simultaneous Heat and Water)模型,模拟了陕西子洲岔巴沟流域1964~1967年土壤水分和土壤蒸发的动态特征,以及神木六道沟流域2006年坡地和梯田土壤水分变化。结果表明,除表层土壤水分模拟结果偏差较大,其他土层模拟值与实测值基本吻合,模拟期土壤水分模拟的相对平均绝对误差(Relatively Mean Absolutely Error,RMAE ...
黄明斌, 成向荣, 邵明安
core
[Standardized Construction of Lung Cancer Organoids and Their Application Progress in the Precise Treatment of Lung Cancer]. [PDF]
Zhongguo Fei Ai Za ZhiCao S +5 more
europepmc +1 more source
[Determination of glufosinate and its metabolite residues in tea by ultra-high performance liquid chromatography-tandem mass spectrometry coupled with precolumn derivatization]. [PDF]
Se PuBi RF +5 more
europepmc +1 more source
[Research progress in material preparation and application of magnetism-enhanced in-tube solid-phase microextraction]. [PDF]
Se PuLuo YN +7 more
europepmc +1 more source
[Determination of organophosphate diesters in facility vegetable soils using ultra-high performance liquid chromatography-electrostatic field orbitrap high resolution mass spectrometry]. [PDF]
Se Pu, 2023 Liu M +7 more
europepmc +1 more source
[Diabetic foot care: full-lifecycle management driven by digital intelligent technologies]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiChen L, Ran X.
europepmc +1 more source
[Analysis of epidemiological characteristics and spatial clustering of hepatitis C virus in China from 2018 to 2022]. [PDF]
Zhonghua Gan Zang Bing Za ZhiFan SF, Zhang JH, Duan ZH, Dai Z, He QY.
europepmc +1 more source