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天山北坡三工河流域中山带森林发育与气候土壤的关系/Forest Development and Their Relationships with Climatic and Soil in the Mid-mountain Area of Sangong River Watershed, Northern Slope of Tianshan Mountains[J]

, 2011
开展干旱区山地森林发育状况及其土壤因素影响的分析,对干旱区乃至全球山地森林带的成因研究具有重要的理论意义.以天山北坡三工河流域为研究区,主要利用森林调杳与遥感影像数据,确定该流域森林带的分布状况,并结合流域气象与土壤采样数据,莺点分析气候土壤因素对森林发育的影响.结果表明:1.该流域森林带位于海拔1 510～2 720 m,胸径与树高随海拔增加呈双峰曲线;其中胸径两个峰值分别位于约海拔2 000 m与2 550m,而树高峰值分别为海拔2 100 m与2 600 m,均稍高于胸径的峰值海拔高度;2 ...
中国科学院新疆生态与地理研究所,新疆乌鲁木齐830011, 中国科学院新疆生态与地理研究所,新疆乌鲁木齐,830011, 罗格平, 尹昌应, 李艳忠, FENG Yixing, XU Wenqiang, LI Yanzhong, 许文强, 冯异星, HAN Qifei, 韩其飞, YIN Changying, 中国科学院研究生院,北京100039, LUO Geping   +14 more
core  

[A Randomized Controlled Clinical Trial of Acupuncture at the Sphenopalatine Ganglion for the Treatment of Allergic Rhinitis]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Huang J, Zhong B, Wang F, Zhang Y, Qiu Y, Wei X, Deng J, Song H.   +7 more
europepmc   +1 more source

抚育间伐条件下凋落物分解对海岸带防护林土壤有机碳稳定性的影响

Shuitu Baochi Xuebao
[目的] 为阐明抚育间伐条件下凋落物分解和土壤有机碳(SOC)组分的变化特征,揭示抚育间伐条件下凋落物分解对防护林SOC稳定性的影响。[方法] 在抚育间伐3年后,以3种林分(麻栎林、黑松林和麻栎-黑松林)的海岸带防护林凋落物和表层(0—20 cm)土壤为研究对象,采用凋落物原位分解、室内化学性质分析和随机森林模型等分析方法,表征3种抚育间伐强度(对照0,轻度15%,重度30%)下凋落物分解特征和SOC组分,并分析其关系。[结果] 重度抚育间伐显著增加麻栎和麻栎-黑松凋落物在分解过程中的质量剩余 ...
张子胥, 胡丁猛, 卢昱存, 吴其聪, 董智, 高鹏   +5 more
doaj  

[Association between 473 gut microbiota and Alzheimer's disease: a Mendelian randomization mediation analysis of 233 circulating metabolites]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Li D, Li Y, Yang X, Wang Y, Qu Y.
europepmc   +1 more source

[Development of a prediction model for levetiracetam plasma concentration in children with epilepsy based on pharmacokinetic characteristics: A comparison of multiple linear regression and complex algorithms]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Xie Y, Wu W, Chen Y, Liu Z.
europepmc   +1 more source

[Construction of an anxiety recognition model for patients with malignant gastrointestinal tumors based on multidimensional features and multiple interpretable machine learning]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Chen M, Guo R, Zhao W, Wang Y, Zuo L, Liu M, Li B.   +6 more
europepmc   +1 more source

[Identification of high-risk preoperative blood indicators and baseline characteristics for multiple postoperative complications in rheumatoid arthritis patients undergoing total knee arthroplasty: a multi-machine learning feature contribution analysis]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zhu K, Huang Z, Wang B, Li H, Wu Y, Shen B, Nie Y.   +6 more
europepmc   +1 more source

[Preliminary investigation into the mechanisms of thalidomide in inhibiting the malignant transformation of oral leukoplakia]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Shang Q, Awuti G, Xu H, Chen Q, Zhao J.
europepmc   +1 more source

[Mechanisms of cGAS-STING signaling pathway mediated neuroinflammation in central nervous system and their therapeutic implications]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Yu X, Yao S, Xu P, Wang A.
europepmc   +1 more source

[Predictive value of a multimodal radiomics model for central lymph node metastasis in clinically node-negative papillary thyroid microcarcinoma based on machine learning]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Feng J, Yang Y, Liu S, Qin A, Ye J, Jiang Y.   +5 more
europepmc   +1 more source