Temporal and Spatial Changes of Land Use and Their Eco-environmental Effects in Nanchang City from 2000 to 2020 [PDF]
, 2022 [Objective] The regional ecological environmental effects caused by land use changes in Nanchang City by determining the quantitative relationships between regional land and resource development and ecological environments were analyzed in order to ...
Tang Jianglong +2 more
core +1 more source
Elemental Speciation Analysis Methods and Its Application in Food Science(元素形态分析方法在食品科学中的应用) [PDF]
Shipin kexue jishu xuebao, 2015 Elements had different chemical and biological effects due to the different forms, which caused different chemical behaviors in the ecological environment and organisms.
YIN Wei(尹 洧)
doaj +1 more source
Effects of Land Use Transition on Ecosystem Service Values in Wuling Mountain Region in Chongqing City [PDF]
, 2022 [Objective] The effects of land use transition on ecosystem service values (ESV) in the Wulong District were analyzed in order to provide a basis for decision-making regarding rational land use, optimal allocation of resources, development and protection,
Deng Wei +4 more
core +1 more source
Spatial-Temporal Evolution of Productional-Living-Ecological Function in Huanghuaihai Plain of He'nan Province During 1990—2020 [PDF]
, 2022 [Objective] The spatial and temporal evolution of productional-living-ecological functions was studied in order to provide a scientific basis for the construction of new regional land space patterns, implement and supervise territorial spatial planning ...
Feng Xiaojuan +4 more
core +1 more source
Geochemical Characteristics and Environmental Risk Assessment of Heavy Metals in Weathering Profiles of Alkali-enriched Porphyry in Central Yunnan [PDF]
, 2023 BACKGROUNDThe contents of many heavy metals in soil in many areas of southwest China are much higher than the national soil background value, and related studies show that most heavy metals in soil are in a state of “high background and low activity ...
Fangping WEN +10 more
core +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2022 引导旅游者实施环境责任行为是应对传统村落环境困境、实现文化遗产保护的有效途径。以刺激-机体-反应理论为基础，引入中介变量怀旧和调节变量道家生态价值观，用以探讨传统村落情境下旅游真实性对旅游者环境责任行为的影响机制和作用边界。采用层级回归分析方法，对宏村349名游客的问卷调查进行了分析，结果表明：（1）客体真实性和存在真实性对旅游者环境责任行为均具有显著的促进作用；（2）怀旧分别在客体真实性、存在真实性与旅游者环境责任行为的关系中扮演中介角色；（3 ...
JINHongyan(金红燕) +3 more
doaj +1 more source
Shuitu Baochi Xuebao, 2022 探索三生空间演变的生态环境效应及驱动因素, 可为国土空间优化及生态环境保护的实施提供科学依据。以松花江流域哈尔滨段为例, 运用网格单元法, 结合生态环境质量指数、全局自相关模型、核密度函数等方法分析1986—2016年三生空间演变的生态环境效应时空分异特征, 并借助地理探测器模型揭示生态环境质量空间分异的驱动因素。结果表明: (1)1986—2016年研究区三生空间以生产空间为主, 其中农业生产空间和林业生态空间所占比重最大, 呈现生产空间和生态空间减少、生活空间增加的变化趋势; (2 ...
盖兆雪 +3 more
doaj
全球变化下九龙江河流-河口系统营养盐循环过程、通量与效应 [PDF]
, 2018 河流-河口系统是陆地与海洋物质循环的重要通道。人类活动和气候变化已显著改变营养盐循环并产生一系列生态环境效应(富营养化、有害藻华、缺氧、酸化等)。本文基于现场观测、实验模拟和模型分析结果,总结亚热带中小型河流——九龙江河流-河口系统的营养盐(氮、磷、硅)含量和通量的长期变化及主控因素、水体反硝化作用、梯级电站水库对营养盐的滞留、气候变化(暴雨事件、升温)影响营养盐输送与循环等方面的研究进展,讨论营养盐变化的潜在生态环境效应。与大型河流相比,中小型河流对人类活动与气候变化的干扰更为敏感 ...
陈能汪
core +1 more source
The toxicity of chlortetracycline to wheat root(金霉素对小麦根生长的毒性效应)
Zhejiang Daxue xuebao. Lixue ban, 2015 四环素类抗生素因具有抗菌和促进畜禽动物生长的功效，被广泛应用于畜禽养殖业.由于畜禽对抗生素的吸收、代谢较少，30%~90%的抗生素都以本体药物的形式随畜禽粪便排出流入环境.以四环素类抗生素——金霉素为例，研究了金霉素对小麦根生长的毒性效应，建立了不同形态金霉素对小麦根系生长的毒性效应模型：，得到各形态金霉素对小麦根毒性强弱的排序：二价阴离子态>一价阴离子态>中性态>阳离子态，共存Ca2+对金霉素毒性的影响与Ca2+以及金霉素的浓度有关.
NIQunli(倪群丽) +3 more
doaj +1 more source
Flume-based Experimental Study on Wave Prevention and Sand Fixation Functions of Sand Barriers Applied to Coral Sandy Coastlines [PDF]
, 2023 [Objective] The flume simulation research on wave prevention and sand stabilization counter measures for coral sandy coastlines were studied in order to provide a theoretical basis for the project to protect coastlines against wave erosion along the ...
Hu Wenli +5 more
core +1 more source