Shuitu Baochi Xuebao, 2007 利用137Cs示踪方法,对宁南黄土高原阳洼流域土壤137Cs分布及土壤侵蚀进行了初步研究。结果表明:流域137Cs基准值为(1 966.99±112.06)Bq/m2。流域内林草地土壤剖面137Cs呈指数型分布,坡耕地137Cs在耕层内呈均一分布。受坡位影响,坡耕地上坡137Cs质量活度为中、下坡的25.14%~27%。流域内坡耕地土壤侵蚀最高,平均为3 889.95 t/km2,自然荒坡最小,仅为坡耕地的17.83%,坡耕地是流域泥沙的主要侵蚀溯源区。阳洼流域土壤侵蚀存在明显的空间格局 ...
马琨, 马远远, 马斌, 罗登科
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Clinical characteristics of pulmonary alveolar proteinosis. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue Ban, 2021 Long Y +5 more
europepmc +1 more source
Shuitu Baochi Xuebao, 2005 198 9年以来三峡地区开展的侵蚀泥沙13 7Cs示踪的初步研究表明:三峡地区紫色土陡坡耕地侵蚀强烈,坡度>2 5°的坡耕地,侵蚀速率高达712 6 94 5 2t/(km2 ·a) ;黄壤质地粘重,抗蚀性好,坡度2 9°的陡坡耕地的侵蚀速率仅2 5 0 9t/(km2 ·a)。林草地侵蚀轻微,坡度2 5°林草地的侵蚀速率为30 6 6 88t/(km2 ·a) ,较坡耕地大致低一个数量级。上世纪6 0年代以来,开县小江河床上涨强烈,两岸滩地也有淤积发生,淤积厚度10 70cm不等 ...
文安邦 齐永青 汪阳春 贺秀斌 伏介雄 张信宝
doaj
[Solid phase microextraction of benzenes in river water by pomelo peel biochar]. [PDF]
Se Pu, 2022 Chen J +5 more
europepmc +1 more source
[Treatment and influencing factors of infection after limb salvage surgery for malignant tumor around knee joint]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2020 Shen R +5 more
europepmc +1 more source
[Research progress on biocomposites based on bioactive glass]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2023 Peng Y, Lan L, Mu J, Hou S, Cheng L.
europepmc +1 more source
Progress in diagnosis and treatment of post-traumatic osteomyelitis. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue Ban, 2021 Tang B, Zhu W.
europepmc +1 more source
[Effectiveness of one-stage total knee arthroplasty in treatment of advanced active knee tuberculosis]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2023 Huo S +5 more
europepmc +1 more source
[Research progress on lyophilization for pretreatment of emerging organic contaminants in environmental samples]. [PDF]
Se Pu, 2021 Zhang Y, Guo S, Sun Q.
europepmc +1 more source
[Effectiveness of bone transport with a locking plate versus conventional bone transport for tibial defects]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2022 Wang X +6 more
europepmc +1 more source