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Coarse fragment content influences estimates of soil C and N stocks of alpine grassland on the northeastern edge of Qinghai-Tibetan Plateau,China

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Research in Cold and Arid Regions 2022年第2期14卷 100-108页

作者： Yu Qin shuhua yi JianJun Chen State Key Laboratory of Cryospheric Sciences Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesNo.320 West Donggang RoadLanzhouGansu 730000China Institute of Fragile Ecosystem and Environment Nantong UniversityNo.999 Tongjing RoadNantongJiangsu 226007China Guangxi Key Laboratory of Spatial Information and Geomatics No.12 Jiangan RoadGuilinGuangxi 541004China

Soil organic carbon(SOC)and total nitrogen(TN)stocks are usually calculated with samples collected using core *** the calculation considers the effects of gravel in soil samples,other coarse fragments such as stones or boulders in soil may not be collected due to the restricted diameter of core *** would cause an incorrect estimation of soil bulk density and ultimately SOC and TN *** this study,we compared the relative volume of coarse fragment and bulk density of fine earth determined by large size soil sampler with three core *** also investigated the uncertainties in estimation of SOC and TN stocks caused by this soil sampler procedure in three typical alpine grasslands on the northeast edge of the Qinghai-Tibetan Plateau(QTP),*** show that(1)the relative volume and size of coarse fragment collected by large size sampler were significantly(p<0.05)higher and larger than those of core samplers,while bulk density of fine earth,SOC and TN stocks show opposite patterns in all grassland types;(2)SOC and TN stocks determined by core samplers were 17%-45%and 18%-46%higher than larger size sampler for three typical alpine grasslands;and(3)bulk density of fine earth,SOC and TN stocks exponentially decreased with the increasing of coarse fragment *** concluded that core sampler methods significantly underestimated the volume occupied by coarse fragment but overestimated SOC and TN ***,corrections should be made to the results from core samplers using large size samplers on regions with gravel and stone-rich soils in future studies.

关键词： coarse fragment sampler size soil C alpine grassland the Qinghai-Tibetan Plateau

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Understanding the impact of mountain landscapes on water balance in the upper Heihe River watershed in northwestern China

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Journal of Arid Land 2013年第3期5卷 366-383页

作者： Jia QIN YongJian DING JinKui WU MingJie GAO shuhua yi ChuanCheng ZHAO BaiSheng YE Man LI ShengXia WANG State Key Laboratory of Cryospheric Sciences Cold and Arid Regions Environmental and Engineering Research InstituteChinese Academy of Sciences Division of Hydrology Water-Land Resources in Cold and Arid Regions Chinese Academy of Sciences

Estimating the impact of mountain landscape on hydrology or water balance is essential for the sus- tainable development strategies of water resources. Specifically, understanding how the change of each landscape influences hydrological components will greatly improve the predictability of hydrological responses to mountain landscape changes and thus can help the government make sounder decisions. In the paper, we used the VIC （Variable Infiltration Capacity） model to conduct hydrological modeling in the upper Heihe River watershed, along with a frozen-soil module and a glacier melting module to improve the simulation. The improved model performed satisfactorily. We concluded that there are differences in the runoff generation of mountain landscape both in space and time. About 50% of the total runoff at the catchment outlet were generated in mid-mountain zone （2,900-4,000 m asl）, and water was mainly consumed in low mountain region （1,700-2,900 m asl） because of the higher requirements of trees and grasses. The runoff coefficient was 0.37 in the upper Heihe River watershed. Barren landscape produced the largest runoff yields （52.46% of the total runoff） in the upper Heihe River watershed, fol- lowed by grassland （34.15%）, shrub （9.02%）, glacier （3.57%）, and forest （0.49%）. In order to simulate the impact of landscape change on hydrological components, three landscape change scenarios were designed in the study. Scenario 1, 2 and 3 were to convert all shady slope landscapes at 2,000-3,300 m, 2,000-3,700 m, and 2,000-4,000 m asl respectively to forest lands, with forest coverage rate increased to 12.4%, 28.5% and 42.0%, respectively. The runoff at the catchment outlet correspondingly declined by 3.5%, 13.1% and 24.2% under the three scenarios. The forest landscape is very important in water conservation as it reduced the flood peak and increased the base flow. The mountains as ＂water towers＂ play important roles in water resources generation and the impact of mountai

关键词： mountain landscape runoff modeling water balance VIC model Heihe River watershed

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A rapid field crop data collection method for complexity cropping patterns using UAV and YOLOv3

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Frontiers of Earth Science 2024年第1期18卷 242-255页

作者： Huifang ZHANG Binyao WANG Zhonggang TANG Jiahui XUE Ruihang CHEN Hongcheng KAN Shumiao LU Lina FENG Ye HE shuhua yi Institute of Fragile Eco-environment Nantong UniversityNantong 226019China School of Geographic Science Nantong UniversityNantong 226019China Nantong Key Laboratory of Spatial Information Technology R&D and Application School of Geographic ScienceNantong UniversityNantong 226019China

Crop type mapping using remote sensing is critical for global agricultural monitoring and food ***,the complexity of crop planting patternsand spatial heterogeneity pose significant challenges to field data collection,thereby limiting the accuracy of remotely sensed crop *** study proposed a new approach for rapidly collecting field crop data by integrating unmanned aerial vehicle(UAV)images with the YOLOv3(You Only Look Once version 3)*** impacts of UAV flight altitude and the number of training samples on the accuracy of crop identification models were investigated using peanut,soybean,and maize as *** results showed that the average Fl-score for crop type detection accuracy reached 0.91 when utilizing UAV images captured at an altitude of 20 *** addition,a positive correlation was observed between identification accuracy and the number of training *** model developed in this study can rapidly and automatically identify crop types from UAV images,which significantly improves the survey efficiency and provides an innovative solution for acquiring field crop data in large areas.

关键词： deep learning flight altitude crop survey peanut soybean maize

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Diagnosis and treatment understanding of Waldenstr?m macroglobulinemia in China:a cross sectional study

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China Medical Abstracts(Internal Medicine) 2024年第3期41卷 186-187页

作者： yi shuhua State Key Lab Experiment Hematol Natl Clin Blood Dis Res CenterHaihe Cell Ecosys LabInstit Hematol&Blood Dis HospCAMS&PUMCTianjin 300020China

Objective To conduct a nationwide physician survey to better understand clinicians'disease awareness,treatment patterns,and experience of Waldenstr?m macroglobulinemia(WM) in *** This cross-sectional study was conducted from February 2022 to July 2022 by recruiting clinicians with WM treatment experience from hematology,hematology-oncology,and oncology departments throughout China.

关键词： globulin China. treatment

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Serum LDH level may predict outcome of chronic lymphocytic leukemia patients with a 17p deletion： a retrospective analysis of prognostic factors in China

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Chinese Journal of Cancer Research 2017年第2期29卷 156-165页

作者： Heng Li Wenjie Xiong Huimin Liu shuhua yi Zhen Yu Wei Liu Rui Lyu Tingyu Wang Dehui Zou Zengjun Li Lugui Qiu State Key Laboratory of Experimental Hematology Institute of Hematology and Blood Disease Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Tianjin 300020 China

Objective： This study aims to evaluate the natural history of patients with chronic lymphocytic leukemia （CLL） and a 17p deletion （17p-） and identify the predictive factors within this subgroup. Methods： The sample of patients with CLL were analyzed by fluorescence in situ hybridization for deletions in chromosome bands 1 lq22, 13q14 and 17p13; trisomy of bands 12q13; and translocation involving band 14q32. The data from 456 patients with or without a 17p- were retrospectively collected and analyzed. Results： The overall response rate （ORR） in patients with a 17p- was 56.9%, and patients with a high percentage of 17p- （defined as more than 25% of cells harbouring a 17p-） had a lower ORR. The median overall survival （OS） in patients with a 17p- was 78.0 months, which was significantly shorter than the OS in patients without this genetic abnormality （median 162.0 months, P〈0.001）. Within the subgroup with a 17p-, the progression-free survival was significantly shorter in patients at Binet stage B-C and patients with elevated lactate dehydrogenase （LDH）, B symptoms, unmutated IGHVand a high percentage of 17p-. Conclusions： These results indicated that patients with a 17p- CLL have a variable prognosis that might be predicted using simple clinical and laboratory characteristics.

关键词： 17p deletion chronic lymphocytic leukemia (CLL) fluorescent in situ hybridization (FISH) del 17pin CLL

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淋巴浆细胞淋巴瘤/华氏巨球蛋白血症发病机制研究进展

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中华血液学杂志 2014年第6期35卷 568-570页

作者：易树华邱录贵中国医学科学院、北京协和医学院血液学研究所、血液病医院天津300020

在WHO淋巴与造血组织分类（第4版）中,将淋巴浆细胞淋巴瘤（LPL）定义为一种包含小B淋巴细胞、浆细胞样淋巴细胞和浆细胞的肿瘤,常侵犯骨髓,少数侵犯淋巴结和脾脏,同时不符合其他伴小B淋巴细胞样肿瘤的诊断标准.而华氏巨球蛋白血症（WM... 详细信息

在WHO淋巴与造血组织分类（第4版）中,将淋巴浆细胞淋巴瘤（LPL）定义为一种包含小B淋巴细胞、浆细胞样淋巴细胞和浆细胞的肿瘤,常侵犯骨髓,少数侵犯淋巴结和脾脏,同时不符合其他伴小B淋巴细胞样肿瘤的诊断标准.而华氏巨球蛋白血症（WM）为侵犯骨髓且分泌单克隆性IgM的LPL,LPL中大部分为WM [1].从定义中可知LPL/WM是一种兼具B淋巴细胞、浆细胞特点的特殊类型淋巴瘤.大规模的家系调查、高通量技术的应用使得LPL/WM的发病机制研究有了新的突破,在此,我们结合近两年的相关研究总结分析LPL/WM发病机制的研究进展.

关键词：华氏巨球蛋白血症细胞淋巴瘤发病机制 B淋巴细胞浆细胞样高通量技术组织分类单克隆性

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套细胞淋巴瘤诊断与治疗中国指南(2022年版)解读

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中华血液学杂志 2022年第11期43卷 903-909页

作者：阎禹廷易树华邱录贵不详中国医学科学院血液病医院(中国医学科学院血液学研究所) 实验血液学国家重点实验室国家血液系统疾病临床医学研究中心细胞生态海河实验室天津300020

套细胞淋巴瘤(mantle cell lymphoma,MCL)是一种起源于成熟B细胞的非霍奇金淋巴瘤亚类,占非霍奇金淋巴瘤(NHL)的6%~8%^([1])。近年来,MCL的基础转化研究与临床治疗均取得重大进展,中国抗癌协会血液肿瘤专业委员会、中华医学会血液学分... 详细信息

套细胞淋巴瘤(mantle cell lymphoma,MCL)是一种起源于成熟B细胞的非霍奇金淋巴瘤亚类,占非霍奇金淋巴瘤(NHL)的6%~8%^([1])。近年来,MCL的基础转化研究与临床治疗均取得重大进展,中国抗癌协会血液肿瘤专业委员会、中华医学会血液学分会和中国临床肿瘤学会淋巴瘤专家委员会共同制定了《套细胞淋巴瘤诊断与治疗中国指南(2022年版)》(以下简称"指南")^([2]),本文将针对MCL诊疗过程中的重点、难点及争议问题进行讨论,对本指南的更新部分进行解读,同时结合国内外最新研究进展对指南相关推荐进行补充和拓展,为临床实践提供更多参考。

关键词：套细胞淋巴瘤非霍奇金淋巴瘤中华医学会血液肿瘤中国抗癌协会临床实践最新研究进展血液学

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脾边缘区淋巴瘤发病机制研究进展

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中华血液学杂志 2016年第4期37卷 348-352页

作者：阎禹廷易树华邱录贵中国医学科学院、北京协和医学院血液学研究所、血液病医院实验血液学国家重点实验室天津300020

脾边缘区淋巴瘤（splenic marginal zone lymphoma，sMzL）是一类惰性小B淋巴细胞增殖性疾病，在非霍奇金淋巴瘤（NHL）中的比例约为2％，多见于老年人。以脾脏增大、外周淋巴细胞增多为主要表现，常累及脾脏、骨髓和外周血。1992年Sch... 详细信息

脾边缘区淋巴瘤（splenic marginal zone lymphoma，sMzL）是一类惰性小B淋巴细胞增殖性疾病，在非霍奇金淋巴瘤（NHL）中的比例约为2％，多见于老年人。以脾脏增大、外周淋巴细胞增多为主要表现，常累及脾脏、骨髓和外周血。1992年Schmid等最早提出SMZL这一分类。

关键词：脾边缘区淋巴瘤发病机制淋巴细胞增殖性疾病 lymphoma 非霍奇金淋巴瘤淋巴细胞增多脾脏增大主要表现

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套细胞淋巴瘤预后因素的研究进展

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白血病．淋巴瘤 2024年第4期33卷 249-253页

作者：王轶邱录贵易树华中国医学科学院血液病医院(中国医学科学院血液学研究所)、实验血液学国家重点实验室、国家血液系统疾病临床医学研究中心、细胞生态海河实验室天津300020 天津医学健康研究院天津301600

套细胞淋巴瘤(MCL)是一类少见的非霍奇金B细胞淋巴瘤。尽管一线诊疗采用包含阿糖胞苷的增强免疫化疗及自体造血干细胞移植治疗能够改善患者生存,目前MCL仍无标准或治愈性治疗方案,高危MCL患者生存时间极短。文章归纳了MCL预后因素研究进... 详细信息

套细胞淋巴瘤(MCL)是一类少见的非霍奇金B细胞淋巴瘤。尽管一线诊疗采用包含阿糖胞苷的增强免疫化疗及自体造血干细胞移植治疗能够改善患者生存,目前MCL仍无标准或治愈性治疗方案,高危MCL患者生存时间极短。文章归纳了MCL预后因素研究进展,以期能够尽早识别高危MCL患者,并为优化MCL诊疗提供新的思路。

关键词：淋巴瘤,套细胞预后临床和生物学特征治疗反应

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Distinct characteristics and new prognostic scoring system for Chinese patients with Waldenstr（o）m macroglobulinemia

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Chinese Medical Journal 2014年第12期127卷 2327-2331页

作者： yi shuhua Cui Rui Li Zengjun An Gang Qi Junyuan Zou Dehui Zhang Peihong Chen Huishu Wang Jianxiang Chang Hong Qiu Lugui State Key Laboratory of Experimental Hematology Institute of Hematology and Blood Disease HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeTianjin 300020China Department of Hematology Tianjin First Center HospitalTianjin 300192China Division of Cellular and Molecular Biology Toronto GeneralHospital Research Institute Department of Laboratory Medicine& Pathobiology University of Toronto Toronto MSG2C4 Canada

Background Waldenstr（o）m macroglobulinemia （WM） is an uncommon lymphoid *** characteristics and prognosis of WM have never been systematically studied in the *** We analyzed the clinical characteristics and the prognostic factors of 90 Chinese WM patients,and compared them with the Western *** The median age was 62 years old with a male-to-female ratio of *** most common symptoms at diagnosis were fatigue （77.8％） and bleeding （20％）,while only 6 patients （6.7％） were *** the univariate analysis,age ＞62 years,thrombocytopenia,leucopenia,cytopenias ≥2,and high risk on the international prognostic scoring system for WM were the adverse risk factors,but only age ＞62 years and ≥2 cytopenias were the independent prognostic factors in the multivariate *** age ＜62 years and ≥2 cytopenias,three significantly different prognostic groups could been distinguished,with 5-year overall survival of 71.6％,48.6％,and 17.0％（P ＜0.001）.Conclusion Distinct characteristics exist in WM in China compared to the West and we describe a new simple prognostic model for newly diagnosed WM patients.

关键词： clinical characteristics prognosis Waldenstr(o)m macroglobulinemia cytopenias

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