国土空间生态修复关键区域系统识别与修复

基于生态系统问题诊断与生态安全格局构建,探索国土空间生态修复关键区域识别与修复的方法路径。以武汉市蔡甸区为研究区域,从数量、质量、空间格局等3个方面系统诊断了生态系统的退化程度、退化类型及其空间分布。基于生态源地的识别,并以土地覆盖类型、距离水源距离、植被覆盖度、坡度、高程等5种因子构建生态阻力面,通过最小阻力模型识别潜在生态廊道,进而构建生态安全格局。在此基础上,综合生态系统问题诊断与生态安全格局需求,系统地辨识出了武汉市蔡甸区的生态保育区、自然修复区、人工修复区和生态廊道建设区。结果显示,共提取出1 901.52 hm²林地和水体作为生态源地,识别出18 168.12 m潜在生态廊道。从生态保育、自然修复、人工修复、生态廊道建设4个方面提出了对应的生态保护修复措施。     

树文化自信育大国工匠——少数民族地区高职旅游英语课程思政探索

指出了少数民族地区地处偏僻、地方经济相对落后,要实现“为国家和地方经济发展培养适应生产、建设、管理、服务第一线需要的数以百万计的应用型技术技能人才”的教育目标、助力脱贫攻坚,则践行立德树人的根本任务更为突出。因此,探索了高职旅游英语课程思政的有效路径,并从教师、教材、教法3个角度切入,提出了教师跨学科优化团队建设、教材融合地方少数民族特色研发、教法基于产出导向(POA)拓展教学时空等有效路径。     

基于优势分析法的西印度洋捕捞国和地区渔获量差异初步分析

西印度洋是海洋捕捞作业的重要海域,分析捕捞方渔获种类组成和渔获量是评价渔业资源利用状态的基础,也是确保其资源可持续开发和科学管理的重要支撑。本研究根据FAO提供的1950-2019年西印度洋海域渔获量数据,采用优势分析(Dominance analysis),分析了70年间主要捕捞方渔获种类和渔获量组成,比较不同时间序列下主要捕捞方和种类对渔获量的贡献率。研究表明,西印度洋海域渔获量整体呈上升趋势,根据突变点检测及渔获量增长趋势可划分为1950-1982年、1983-2005年和2006-2019年三个阶段。研究分析表明,各阶段累计渔获量前十的渔获种类、捕捞方不存在显著性差异(P<0.05)长头小沙丁鱼(Sardinella longiceps)累计渔获量为最高,鲣、黄鳍金枪鱼等种类渔获量对总渔获量的贡献度较高;印度、巴基斯坦和伊朗等是沿海国和地区各阶段渔获量最高的捕捞方,西班牙、法国、日本和中国台湾省等是非沿海国和地区渔获量最高的捕捞方,对各阶段印度洋西部海域总渔获量的贡献度基本都超过10%。。研究认为,基于印度洋西部海域渔业资源开发现状及其潜力,各主要捕捞国家和地区应该降低捕捞努力量,养护已过度开发的经济种类,增加对资源量丰富的短生命周期种类的开发力度,确保印度洋西部海域渔业资源可持续利用。     

民族地区社区参与旅游现状与对策研究--以贵州云峰屯堡景区为例

指出了社区公众参与旅游是影响旅游景区经营管理绩效的重要因素,也是评价旅游景区良性发展的重要指标。分析了民族地区社区参与旅游发展中所存在的问题,以贵州云峰屯堡景区为例,对近年来其在经营管理上存在的问题进行了深入探讨,提出了解决问题的有效途径。     

风光互补发电系统在农村水环境污染治理中的应用

综述了我国农村水环境污染现状,分析了造成农村水污染的主要原因,提出了以风光互补离线发电系统来治理农村水环境污染的方法。     

张集矿采煤沉陷区环境质量问题及其重建对策

对张集矿采煤沉陷区的现状进行了调查,指出了沉陷区及其流域存在着水质污染、富营养化、农药残留、毁林开荒、水土流失、崩岸严重、水生生态环境恶化等诸多问题,提出了生态修复、生态重建等对策,以改善采煤沉陷区的环境质量。     

A synthesis of the life history and ecology of juvenile Pacific herring in Prince William Sound,Alaska

Physical and biological variables affecting juvenile Pacific herring (Clupea pallasi) in Prince William Sound (PWS) from 1995 to 1998 were investigated as part of a multifaceted study of recruitment, the Sound Ecosystem Assessment (SEA) program. Though more herring larvae were retained in eastern PWS bays, ages‐0 and ‐1 herring used bays throughout PWS as nursery areas. Water transported into PWS from the Gulf of Alaska (GOA) contributed oceanic prey species to neritic habitats. Consequently, variations in local food availability resulted in different diets and growth rates of herring among bays. Summer food availability and possible interspecific competition for food in nursery areas affected the autumn nutritional status and juvenile whole body energy content (WBEC), which differed among bays. The WBEC of age‐0 herring in autumn was related to over‐winter survival. The limited amount of food consumption in winter was not sufficient to meet metabolic needs. The smallest age‐0 fish were most at risk of starvation in winter. Autumn WBEC of herring and winter water temperature were used to model over‐winter mortality of age‐0 herring. Differences in feeding and energetics among nursery areas indicated that habitat quality and age‐0 survival were varied among areas and years. These conditions were measured by temperature, zooplankton abundance, size of juvenile herring, diet energy, energy source (GOA vs. neritic zooplankton), WBEC, and within‐bay competition.     

辽宁近海渔场海蜇增殖放流的回顾与发展

辽宁近海渔场海蜇放流经过1988-1993年、2004年在海洋岛渔场和2002年在辽东湾各渔场的增殖试验与2005-2006年的生产性增殖放流，探索了放流海域选择、放流时间和放流规格，跟踪监测技术，回捕效果检验等相关技术。笔者就海蜇增殖放流情况作系统回顾，并对其大规模发展做以探讨。     

Comparative analysis of proteomic profiles between endometrial caruncular and intercaruncular areas in ewes during the peri-implantation period

The endometrium of sheep consists of plenty of raised intercaruncular areas （IC）. In order to better understand aglandular areas called caruncular （C）, and intensely glandular the endometrium involved mechanisms of implantation, we used LC-MS/MS technique to profile the proteome of ovine endometrial C areas and IC areas separately during the peri-implantation period, and then compared the proteomic profiles between these two areas. We successfully detected 1740 and 1813 proteins in C areas and IC areas respectively. By comparing the proteome of these two areas, we found 170 differentially expressed proteins （DEPs） （P 〈 0.05）, functional bioinformatics analysis showed these DEPs were mainly involved in growth and remodeling of endometrial tissue, cell adhesion and protein transport, and so on Our study, for the first time, provided a proteomic reference for elucidating the differences between C and IC areas, as an integrated function unit respectively, during the peri-implantation period. The results could help us to better understand the implantation in the ewes. In addition, we established a relatively detailed protein database of ovine endometrium, which provide a unique reference for further studies.