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基于机会窗口视角的乡村转型研究 期刊论文  OAI收割
地理研究, 2025, 卷号: 44, 期号: 03, 页码: 785-808
作者:  
张千禧;  曹智
  |  收藏  |  浏览/下载:2/0  |  提交时间:2025/04/07
机会空间视角下高校毕业生流动研究 学位论文  OAI收割
中国科学院地理科学与资源研究所: 中国科学院大学, 2024
作者:  
伏润得
  |  收藏  |  浏览/下载:2/0  |  提交时间:2024/12/02
土地征用的外溢效应——基于农村劳动力创业的视角 期刊论文  OAI收割
农业技术经济, 2023, 期号: 05, 页码: 4-21
作者:  
黄晓雯;  张萌娜;  张林秀;  张同龙
  |  收藏  |  浏览/下载:9/0  |  提交时间:2023/07/11
时空约束下的地铁可达性研究:以北京为例 CNKI期刊论文  OAI收割
2022
作者:  
王姣娥;  熊美成;  黄洁
  |  收藏  |  浏览/下载:15/0  |  提交时间:2022/09/29
基于国家公园生态体验机会谱系的公众体验意向评估研究——以大熊猫国家公园为例 CNKI期刊论文  OAI收割
2021
作者:  
崔庆江;  赵敏燕;  唐甜甜;  王丹;  陈武强
  |  收藏  |  浏览/下载:16/0  |  提交时间:2022/10/11
河北宽城传统板栗栽培系统生态补偿标准测算(英文) CNKI期刊论文  OAI收割
2021
作者:  
刘某承;  白云霄;  杨伦;  王博杰
  |  收藏  |  浏览/下载:21/0  |  提交时间:2022/10/11
机会公平决策的心理和神经机制 学位论文  OAI收割
中国科学院心理研究所: 中国科学院心理研究所, 2021
作者:  
杨仲
  |  收藏  |  浏览/下载:118/0  |  提交时间:2021/07/09
差之毫厘,谬以千里:不同性别定向的名字对女性求职机会的影响 学位论文  OAI收割
中国科学院心理研究所: 中国科学院心理研究所, 2021
作者:  
郭凤
  |  收藏  |  浏览/下载:31/0  |  提交时间:2022/01/26
烟台牟平海洋牧场季节性低氧对大型底栖动物群落的生态效应 期刊论文  OAI收割
生物多样性, 2019, 卷号: 27, 期号: 2, 页码: 200-210
作者:  
李宝泉
  |  收藏  |  浏览/下载:21/0  |  提交时间:2020/06/17
低氧  群落结构  群落恢复  敏感种  机会种  hypoxia  community structure  community recovery  sensitive species  opportunistic species  Hypoxia is a common phenomenon in the world's oceans, especially in the shallow waters of coastal zones. Rates of hypoxia are increasing due to global climatic changes and anthropogenic activities. Hypoxia can cause mass mortality of marine animals and can have severe negative impacts on marine ecosystems. To better understand the effects of hypoxia on macrobenthic communities, a survey was carried out in the Muping Marine Ranch (Yantai) during June, August and September of 2016. Results showed that seasonal hypoxia led to changes in benthic community structure, especially in terms of species composition and dominant species. The dominant species were Polychaeta Lumbrinereis latreilli, Sternaspis scutata and Mollusca Endopleura lubrica in summer. The opportunistic species Lumbrinereis latreilli increased, whereas, sensitive species such as Leptomya minuta, Glycera chirori, Upogebia major, Pontocrates altamarimus, Eriopisella sechellensis decreased during the hypoxic period of August. Hypoxia also reduced biodiversity indices. The effect of hypoxia on abundance and biomass were not significant, mainly because of the increase in the opportunistic Lumbrinereis latreilli, which counteracted the decline in abundance and biomass of other species. Individual physiological tolerance to hypoxia was different among species. Lumbrinereis latreilli showed higher tolerance to hypoxia in dissolved oxygen (DO) = 1.0 mg/L compared to other species. Some sensitive species, such as Leptomya minuta, Upogebia major, Pontocrates altamarimus and Eriopisella sechellensis showed lower tolerance when DO < 2.5 mg/L. When DO increased to 2.5 mg/L, the macrobenthic community start to recover gradually. The recovery extent and time needed were closely related to the degree of seasonal hypoxia.  
大都市森林公园环境解说机会谱系构建研究——以北京市为例 期刊论文  OAI收割
城市发展研究, 2018, 卷号: 25.0, 期号: 008, 页码: c10
作者:  
赵敏燕;  董锁成;  高宁;  李宇;  马红
  |  收藏  |  浏览/下载:24/0  |  提交时间:2020/03/23