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浅析潦河灌区现代化生态灌区建设实践与探索

水利建设与管理 2023年第5期43卷 79-84页

作者：黄长柏江西省潦河工程管理局江西奉新330700 江西省水利发展研究中心江西南昌330029

为准确把握和全面落实生态文明理念,实现建成“节水高效、设施完善、管理科学、生态良好”的现代化灌区目标,江西省潦河灌区从谋篇布局、工程建设、灌区文化、生态运用、管理改革等方面出发,开展了一系列现代化生态灌区建设的实践与探索... 详细信息

为准确把握和全面落实生态文明理念,实现建成“节水高效、设施完善、管理科学、生态良好”的现代化灌区目标,江西省潦河灌区从谋篇布局、工程建设、灌区文化、生态运用、管理改革等方面出发,开展了一系列现代化生态灌区建设的实践与探索,形成了具有灌区特色的现代化生态灌区建设理论与实践成果。本文对此加以介绍,以期为灌区水利高质量、跨越式发展提供参考。

关键词：潦河灌区实践探索现代化生态灌区

湖北省三峡库区砂泥岩互层岩体劣化特征与劣化机理分析

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中国资源综合利用 2024年第1期42卷 34-37页

作者：何钰铭彭正华石长柏谢迪赵振洋黄宁湖北省地质局水文地质工程地质大队湖北省地质局资源与生态环境地质湖北省重点实验室湖北荆州434000

受水位周期性变动影响,三峡库区地质环境产生复杂变化,尤其是对碎屑岩岸坡砂泥岩互层岩体劣化的影响显著。本文通过对湖北省三峡库区碎屑岩岸坡砂泥岩互层岩体进行现场调查,结合现场测试与室内试验成果,对比分析碎屑岩砂泥岩互层岩体两... 详细信息

受水位周期性变动影响,三峡库区地质环境产生复杂变化,尤其是对碎屑岩岸坡砂泥岩互层岩体劣化的影响显著。本文通过对湖北省三峡库区碎屑岩岸坡砂泥岩互层岩体进行现场调查,结合现场测试与室内试验成果,对比分析碎屑岩砂泥岩互层岩体两种结构单元的劣化差异,结合岸坡互层岩体的劣化现状,分析砂泥岩互层结构的岸坡岩体劣化变形过程,揭示砂泥岩互层岩体的劣化机理及其对岸坡致灾发展的影响,为后期合理进行岸坡岩体劣化评价及防治提供理论支撑。

关键词：三峡库区碎屑岩库岸砂泥岩互层岩体劣化劣化机理

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《长白英魂》的空间叙事与东北抗联精神解析

四川戏剧 2024年第5期 36-39页

作者：黄大军吕佳牡丹江师范学院文学院

七场现代吉剧《长白英魂》曾斩获第36届田汉戏剧奖剧本一等奖,该剧主要取材于陈翰章将军的抗敌事迹,同时又有着不拘泥于历史叙述的戏剧化处理。该剧以家国空间、战争空间与地域空间为叙事场域,通过设置战争与爱情两条错综交织的情节线索... 详细信息

七场现代吉剧《长白英魂》曾斩获第36届田汉戏剧奖剧本一等奖,该剧主要取材于陈翰章将军的抗敌事迹,同时又有着不拘泥于历史叙述的戏剧化处理。该剧以家国空间、战争空间与地域空间为叙事场域,通过设置战争与爱情两条错综交织的情节线索,成功地塑造了东北抗联名将陈翰章的艺术形象,展现了东北抗联精神的多重意蕴。该剧以现代民族国家意识与爱国主义精神为本位,为特殊历史时期家国一体的主题诠释开辟了新路径,为东北抗联精神的当代传承做出了创新性探索。

关键词：吉剧《长白英魂》陈翰章空间叙事东北抗联精神

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认罪认罚具结书单方保证性的逻辑与实践展开

长白学刊 2024年第1期 71-81页

作者：黄祖帅何磊天津市人民检察院天津300222

具结书是认罪认罚从宽制度的核心文书,关于该文书的性质主要存在自认说与契约说的理论争议。从协商主体的不平等性、协商内容的局限性、协商程序的不完整性、具结书的学理解释等方面考量,认罪认罚具结书虽然具有一定的契约因素,但性质... 详细信息

具结书是认罪认罚从宽制度的核心文书,关于该文书的性质主要存在自认说与契约说的理论争议。从协商主体的不平等性、协商内容的局限性、协商程序的不完整性、具结书的学理解释等方面考量,认罪认罚具结书虽然具有一定的契约因素,但性质上仍属于犯罪嫌疑人的单方承诺或保证。从这一性质考察,目前实践中通行的认罪认罚具结书存在缺少参与人身份信息、认定事实部分篇幅过长、量刑建议内容简略、风险告知内容不足等问题。从增强犯罪嫌疑人签署具结书的自愿性、控辩双方量刑协商的充分性、犯罪嫌疑人对量刑建议的理解程度,降低认罪认罚后无故反悔、上诉的比率的角度出发,应对认罪认罚具结书模板从完善身份信息、明确认罪认罚反悔风险、适当简化事实描述、详细释明量刑过程等方面予以改进,进一步提升适用质效。

关键词：认罪认罚人权保障具结书单方保证

寒区地下矿采场爆破炮烟浓度分布及运移规律研究

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工程爆破 2024年第4期30卷 51-57页

作者：吴慧张峰张昭黄刚张建华倪才华中国爆破行业协会北京100070 武汉理工大学资源与环境工程学院武汉430070 北方爆破科技有限公司北京100089 长江生态环保集团有限公司武汉430062

采场排烟时间过长,严重影响了正常生产、延长了有毒有害气体的滞留时间。以长白山JT铁矿地下采场通风问题为背景,借助FLUENT流体力学软件,对爆破炮烟在采场空间的运动规律进行了研究。通过模拟矿山-100 m水平3号采场爆破通风状况,分析... 详细信息

采场排烟时间过长,严重影响了正常生产、延长了有毒有害气体的滞留时间。以长白山JT铁矿地下采场通风问题为背景,借助FLUENT流体力学软件,对爆破炮烟在采场空间的运动规律进行了研究。通过模拟矿山-100 m水平3号采场爆破通风状况,分析了采场在现有通风方案条件下的炮烟和通风风流运移规律。研究表明,新鲜风流进入采场后沿回采工作面附近流走,并未进入到采场深部,有毒有害气体在采场内大量聚集,造成通风风流的浪费,回采工作面CO浓度与采场深部CO浓度相差很大,该结论可以为矿山地下采场通风措施的改进提供新方案,同时也验证了流体力学软件FLUENT在解决采场通风问题上的可行性,这将为今后优化采场通风提供可靠的研究途径。

关键词：地下矿山爆破炮烟数值模拟通风优化

Soil and Vegetation Spectral Coupling Difference (SVSCD) for Minerals Extraction from Hyperion Data in Vegetation Covered Area

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Chinese Geographical Science 2018年第6期28卷 957-972页

作者： CHEN Shengbo huang Shuang LIU Yanli ZHOU Chao College of Geoexploration Science and Technology Jilin University Changchun 130026 China National Marine Environmental Monitoring Center Dalian 116023 China

Remote sensing data have been widely applied to extract minerals in geologic exploration, however, in areas covered by vegetation, extracted mineral information has mostly been small targets bearing little information. In this paper, we present a new method for mineral extraction aimed at solving the difficulty of mineral identification in vegetation covered areas. The method selected six sets of spectral difference coupling between soil and plant(SVSCD). These sets have the same vegetation spectra reflectance and a maximum different reflectance of soil and mineral spectra from Hyperion image based on spectral reflectance characteristics of measured spectra. The central wavelengths of the six, selected band pairs were 2314 and 701 nm, 1699 and 721 nm, 1336 and 742 nm, 2203 and 681 nm, 2183 and 671 nm, and 2072 and 548 nm. Each data set's reflectance was used to calculate the difference value. After band difference calculation, vegetation information was suppressed and mineral abnormal information was enhanced compared to the scatter plot of original band. Six spectral difference couplings, after vegetation inhibition, were arranged in a new data set that requires two components that have the largest eigenvalue difference from principal component analysis(PCA). The spatial geometric structure features of PC1 and PC2 was used to identify altered minerals by spectral feature fitting(SFF). The collecting rocks from the 10 points that were selected in the concentration of mineral extraction were analyzed under a high-resolution microscope to identify metal minerals and nonmetallic minerals. Results indicated that the extracted minerals were well matched with the verified samples, especially with the sample 2, 4, 5 and 8. It demonstrated that the method can effectively detect altered minerals in vegetation covered area in Hyperion image.

关键词： spectral difference coupling vegetation covered area Hyperion image mineral extraction

液态发酵饲料对仔猪生产性能和肠道健康的影响

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西北农林科技大学学报（自然科学版） 2024年第8期52卷 18-26页

作者：官小凤钟晓霞简悦姚焰础黄健刘志云重庆市畜牧科学院重庆荣昌402460 农业农村部养猪科学重点实验室重庆荣昌402460 国家生猪技术创新中心重庆荣昌402460

【目的】探究液态发酵饲料对仔猪生产性能、养分消化率、血液指标、粪便微生物菌群和粪臭物质含量的影响,为液态发酵饲料在仔猪生产中的应用提供理论依据。【方法】选取60头28日龄、体质量(8.0±0.3)kg/头的健康长白×荣昌二元断奶仔猪... 详细信息

【目的】探究液态发酵饲料对仔猪生产性能、养分消化率、血液指标、粪便微生物菌群和粪臭物质含量的影响,为液态发酵饲料在仔猪生产中的应用提供理论依据。【方法】选取60头28日龄、体质量(8.0±0.3)kg/头的健康长白×荣昌二元断奶仔猪,随机分为基础饲粮组(MF,饲喂干粉料)、液态饲料组(LF,饲喂液态饲料)和液态发酵饲料组(FLF,饲喂液态发酵饲料)3组,每组5个重复,每个重复4头。饲养试验42 d,其中预饲期5 d,正试期37 d。饲养试验结束后,测定各组仔猪生产性能、血液指标、粪便菌群及粪臭物质含量,并从每组选取5头体质量约22 kg/头的仔猪,采用全收粪法进行代谢试验,预饲期3 d,正试期4 d,分别评价干粉料、液态饲料和液态发酵饲料的养分表观消化率。【结果】(1)与MF组和LF组相比,FLF组仔猪日采食量分别提高19.52%和12.14%(P0.05)。(2)与MF组和LF组相比,FLF组仔猪的血清二胺氧化酶活性和D-乳酸、脂多糖、IL-1β含量下降,而IL-10含量上升,但均差异不显著(P>0.05)。(3)与MF组和LF组相比,FLF组Shannon指数显著降低(P0.05);FLF组仔猪粪便中链球菌属相对丰度较LF组显著降低(P0.05)。(5)与MF组相比,FLF和LF组仔猪消化能及氮、粗脂肪、粗灰分、钙、磷的表观消化率均有所上升,但差异均不显著(P>0.05)。【结论】液态发酵饲料可提高仔猪生产性能,降低粪便菌群多样性和潜在致病菌数量,但对仔猪血液指标、粪便臭味物质含量和饲料养分表观消化率无显著影响。

关键词：生物饲料液态发酵饲料仔猪生产性能粪便微生物

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Health Assessment of Typical Reservoirs in Eastern Jilin: A Case Study of Niligou Reservoir

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Asian Agricultural Research 2024年第1期16卷 17-21页

作者： Meihua huang Jing WANG Yinglin XIE Chunsheng WEI Xin TIAN Lunwen WANG Jilin Provincial Bureau of Hydrology and Water Resources(Jilin Provincial Water Environment Monitoring Center) Changchun 130022China Changchun Xinlicheng Reservoir Management Center Changchun 130000China

Niligou Reservoir,a typical reservoir in the eastern region of Jilin Province,is subordinate to Niligou River,which is located in the changbai Mountains in eastern Jilin,with abundant plant and animal resources and well protected biodiversity in the basin,but there are also some related problems such as fragile ecosystem of forest *** paper carried out a health assessment of Niligou River,including water quality monitoring,aquatic organism monitoring,and riparian zone *** to the requirements of the Technical Guidelines for River and Lake Health Assessment,13 assessment indexes were selected to build a river and lake health assessment index *** sorting and analyzing the monitoring and investigation data,we got a clear picture of the ecological environment status and existing problems of Niligou *** on the actual situation of Niligou River,we evaluated the hydrologic integrity,chemical integrity,morphological and structural integrity,biological integrity and sustainability of social service function,and put forward corresponding countermeasures according to the re-sults,in order to provide a technical support for the health treatment of rivers and lakes in Jilin Province.

关键词： Eastern Jilin Niligou Reservoir Health assessment

Decay rate of Larix gmelinii coarse woody debris on burned patches in the Greater Khingan Mountains

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Journal of Forestry Research 2021年第6期32卷 2349-2363页

作者： Shubo huang Lixiang Wen Shuai Yin Meng Guo Fangbing Yu Key Laboratory of Geographical Processes and Ecological Security in changbai Mountains School of Geographical SciencesNortheast Normal UniversityMinistry of EducationChangchun130024People’s Republic of China Center for Global Environmental Research National Institute for Environmental StudiesTsukuba3058506Japan

The decomposition of coarse woody debris(CWD)affects the energy flow and nutrient cycling in forest *** studies on CWD have focused on the input,decomposition,reserve dynamics,and CWD functions,but coarse woody debris decomposition is complex and the results from different regions vary *** is not clear which factors affect decay rate(k),especially at different decomposition *** this study,a single-exponential decay model was used to analyze the characteristics of CWD decomposition in Larix gmelinii forests over the 33 years following a fire in the Greater Khingan *** results show that the decay rate of coarse woody debris was positively correlated to decay *** average decomposition rate was 0.019,and 41 years and 176 years are needed for a 50%and 95%mass loss,*** nutrient content,density,and water content could explain the variance in the decay rate(~42%)of the decay factors such as amount of leaching,degree of fragmentation,respiration of the debris,and biotransformation,and varied significantly between different decay *** the space-time substitution method,this study arranged the coarse woody debris of different mortality times to form a 33 year chronosequence which revealed the decomposition *** was concluded that the decay rate was mainly explained by structural component of the debris and its nitrogen and water *** paper quantifies the indicators affecting CWD decay to explain the decomposition process.

关键词： Coarse woody debris Decay rate Space–time substitution Boreal forest Fire disturbance