中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共9条，第1-9条

帮助

条数/页：排序方式：
	Evaluating human-nature relationships at a grid scale in China, 2000-2020 期刊论文 OAI收割 HABITAT INTERNATIONAL, 2025, 卷号: 156, 页码: 103282 作者: Liu, Haimeng; Lu, Jiayi; Li, Xuecao; Wang, Yuanchen; Xu, Dong \| 收藏 \| 浏览/下载：5/0 \| 提交时间：2025/02/24 Human-nature relationship Human-environment system Human footprint Ecosystem quality Human settlement environment Social-ecological systems Conflict and coordination
	Sustainability assessment of coupled human and natural systems from the perspective of the supply and demand of ecosystem services 期刊论文 OAI收割 FRONTIERS IN EARTH SCIENCE, 2022, 卷号: 10, 页码: 17 作者: Liu, Haimeng; Xing, Lu; Wang, Chengxin; Zhang, Haiyan \| 收藏 \| 浏览/下载：31/0 \| 提交时间：2022/11/29 coupled human and natural systems sustainability assessment ecosystem service values human demand social-ecological systems human-environment complexity trade-off and synergy China
	食用蔬菜能吸收和积累微塑料期刊论文 OAI收割科学通报, 2019, 卷号: 64, 期号: 9, 页码: 928-934 作者: 李连祯; 周倩; 尹娜; 涂晨; 骆永明 \| 收藏 \| 浏览/下载：143/0 \| 提交时间：2020/06/17 微塑料生菜聚苯乙烯微球吸收积累健康风险 microplastics lettuce polystyrene microbeads uptake accumulation human health risk Microplastic (MP, 100 nm-5 mm) may present an attributable risk to ecosystem and human health, and its pollution has become a global environmental concern. Despite a wealth of information on the accumulation of MPs in aquatic species, there is no information on the uptake and accumulation of MPs by higher plants. Terrestrial edible plants are directly exposed to MPs when agricultural soil was applied with organic manure, sewage sludge as fertilizer or plastic mulching. In this paper, the uptake of two sizes of polystyrene (PS) microbeads (0.2 and 1.0 mum) and then their distribution and migration in an edible plant lettuce were firstly investigated based on laboratory experiments. We used fluorescent markers to track PS microbeads in plant tissues and found fluorescence to be a sensitive and reliable detection method. Sections from untreated control lettuce showed no autofluorescence. When roots were treated with fluorescently labeled PS microbeads, the microbeads could be identified by its fluorescence. Our main study investigated the uptake of 0.2 mum beads, as few luminescence signals were observed in lettuce roots for 1.0 mum beads in our experiment. We observed that 0.2 mum fluorescent microbeads were extracellularly trapped in the root cap mucilage (which is a highly hydrated polysaccharide) and a dark green tip (which was typical of lettuce roots exposed to label PS beads) was usually visible to the naked eye. Confocal images revealed that the PS luminescence signals were mainly located in the vascular system and on the cell walls of the cortex tissue of the roots, indicated that the beads passed through the intercellular space via the apoplastic transport system. Once inside the central cylinder, the 0.2 mum PS beads were transferred from the roots to the stems and leaves via the vascular system following the transpiration stream. We also observed that the PS beads adhered to one another and self-assembled systematically into grape-like and (chain) string-like clusters in the intercellular space of the root and stem vascular tissue of lettuce plant. In contrast to the root and stem, PS beads were dispersed in the leaf tissue. Here, for the first time we provide evidence of the adherence, uptake, accumulation, and translocation of submicrometer MPs within an edible plant. Our findings highlight the previously underappreciated human exposure pathway to MPs through the consumption of contaminated crops and emphasize the need for new management strategies to control the release of MPs waste products into the terrestrial environment. Ultimately, the potential impacts of low range sized MPs on food safety of crop plants and human health need to be urgently considered.
	High-throughput monitoring of wild bee diversity and abundance via mitogenomics1 期刊论文 OAI收割 METHODS IN ECOLOGY AND EVOLUTION, 2015, 卷号: 6, 期号: 9, 页码: 1034-1043 作者: Tang M; Hardman C; Tan MH; Yang SZ; Moss ED 收藏 \| 浏览/下载：47/0 \| 提交时间：2016/07/25 agri-environment schemes biodiversity and ecosystem services farmland biodiversity genome skimming Hymenoptera metabarcoding metagenomics mitogenomes neonicotinoids pollination
	基于遥感与GIS的新疆近18a来LUCC的生态环境效应分析/Response of Ecological Environment to Land Use/Cover Change in Xinjiang during 1990--2008 based on Remote Sensing and GIS[J] 期刊论文 OAI收割中国沙漠, 2012, 卷号: 32, 期号: 5, 页码: 1486-1493 作者: 黄凤; 吴世新; 唐宏; 中国科学院新疆生态与地理研究所,新疆乌鲁木齐830011／中国科学院研究生院,北京100049; 中国科学院新疆生态与地理研究所,新疆乌鲁木齐,830011 \| 收藏 \| 浏览/下载：12/0 \| 提交时间：2017/12/29 土地利用/覆盖变化生态环境效应生态系统服务价值遥感与Gis 新疆 LAnd Use/cover Change Ecological Environment Effect Ecosystem Services Value Remote Sensing And Gis Xinjiang
	中国西部脆弱生态环境与可持续发展研究学位论文 OAI收割博士, 北京: 中国科学院研究生院, 2007 周毅收藏 \| 浏览/下载：164/0 \| 提交时间：2010/05/19 中国西部生态环境脆弱区可持续发展 West China ecosystem and environment fragile ecosystem zone sustainable development
	城市用地规划管理的共轭生态方法研究学位论文 OAI收割博士, 北京: 中国科学院研究生院, 2007 史永亮收藏 \| 浏览/下载：79/0 \| 提交时间：2010/05/24 城市用地规划管理生态规划冲突共轭复合生态功效可持续发展景观生态格局情景分析浦东新区衡阳阿克苏 Eco-environment urban land use planning and management ecological planning conflict conjugation complex ecosystem effects sustainable development landscape pattern scenario analysis the Pudong New District Hengyang City Aksu City
	Sustainability science: an ecohealth perspective 期刊论文 OAI收割 SUSTAINABILITY SCIENCE, 2007, 卷号: 2, 期号: 1, 页码: 77-84 作者: Rapport, DJ; Rapport, DJ, Ecohlth Consulting, Salt Spring Isl, BC V8K 2N6, Canada \| 收藏 \| 浏览/下载：29/0 \| 提交时间：2011/09/23 Ecosystem Health Sustainability Science Transdisciplinarity Ecosystem Distress Syndrome Ecological Indicators Human Activity And The Environment
	Sustainability science: an ecohealth perspective 期刊论文 OAI收割 SUSTAINABILITY SCIENCE, 2007, 卷号: 2, 期号: 1, 页码: 77-84 Rapport, DJ 收藏 \| 浏览/下载：24/0 \| 提交时间：2011/09/23 Ecosystem health Sustainability science Transdisciplinarity Ecosystem distress syndrome Ecological indicators Human activity and the environment