Results 21 to 30 of about 4,726 (112)
‘The Heart of the Matter’: Grandparent Childcare in Contemporary Chinese Families
ABSTRACT Grandparent childcare is an international phenomenon, especially within families with children under 3 years old. China is no exception, as shown by a number of quantitative studies. Less clear is our understanding of the actual childcare arrangements involved and how these are negotiated and sustained through the intergenerational ...
Jiatong Ling +2 more
wiley +1 more source
通过对宁南山区采取不同恢复措施的土壤水分、理化性质及酶活性的研究结果表明:土壤平均含水量最高的是农田18.61%,其次为林地16.73%、人工草地9.95%,最小的为天然草地9.20%;土壤总孔隙度、土壤碱解氮排列顺序为林地〉农田〉人工草地〉天然草地;土壤毛管孔隙度、土壤速效磷平均含量排列顺序为人工草地〉林地〉农田〉天然草地;土壤有机质平均含量为灌木林地〉农田〉天然草地〉人工草地;土壤速效钾的平均含量为天然草地〉农田〉人工草地〉灌木林地。土壤尿酶含量为人工草地〉天然草地=农田〉林地;土壤蔗糖酶 ...
李生宝, 王占军, 王月玲, 季波
doaj +2 more sources
Abstract There exists a growing suite of technologies that support significant and exciting progress in biodiversity conservation and research. Citizen scientist participation is common in this research and often focuses on data collection and labeling.
Joycelyn Longdon +5 more
wiley +1 more source
对长江上游人工林与天然林下代表性剖面的土壤结构分析看出,人工林较天然林土壤的结构状况要差。选择12项指标对不同林地土壤结构质量进行评价,结果表明人工林土壤结构质量远不如天然林土壤。测定和计算人工林、天然林土壤的持水量和侵蚀率,也看出前者比后者的保水抗蚀性差。其原因主要与林下土壤结构质量有关。长江上游地区人工林分布面积大,现暴露出的很多问题,与其土壤结构质量低下有紧密的关系。建议加强林下土壤结构质量的保护和培育研究。
何毓蓉 廖超林 张保华
doaj +2 more sources
Our research allows us to understand the predictors of extinction risk in traditional Chinese medicinal (TCM) plant species with known threat status, and incorporate this knowledge to predict other TCM plants with unknown conservation status in China so as to improve the overall effectiveness of conservation strategies.
Yuhan Zheng +4 more
wiley +1 more source
对内蒙古大青山4种林地类型的土壤特性、凋落物持水量及林地土壤贮水性能进行了研究。结果表明:①林地间土壤容重和孔隙度差异较大,容重大小依次为油松人工林>虎榛子灌丛林>落叶松人工林>白桦山杨天然次生林;总孔隙大小依次为白桦山杨天然次生林>落叶松人工林>虎榛子灌丛林>油松人工林;②林地间凋落物蓄积量和最大持水率差异较大,蓄积量大小依次为落叶松人工林>白桦山杨天然次生林>虎榛子灌丛林>油松人工林;最大持水率大小依次为落叶松人工林>白桦山杨天然次生林>虎榛子灌丛林>油松人工林;③依据林地总贮水量的大小 ...
巍强, 张秋良, 代海燕, 郭鑫
doaj
Disaster Cross‐Sector Collaboration Networks: Evidence from Four Historical Disasters
ABSTRACT By conducting content analysis and social network analysis of media coverage of four historical disasters (i.e., the 2011 Joplin Tornado, 2013 Moore Tornado, 2017 Hurricane Harvey, and the 2023 Maui wildfire), this study uncovered characteristics of cross‐sector disaster collaboration networks.
Xiaochen Angela Zhang, Jonathan Borden
wiley +1 more source
Abstract Urgency to save species from extinction has prompted increased investment in law enforcement in protected areas. To date, such law enforcement has largely focused on increasing costs and reducing opportunities for offending. However, these resource‐intensive approaches are not always effective and can contribute to conflict between people and ...
Freya A. V. St. John +3 more
wiley +1 more source
Mitigating light pollution impacts on arthropods based on light‐emitting diode properties
Abstract Light pollution from artificial light at night (ALAN) is a significant environmental problem with far‐reaching consequences for ecological systems. Recent innovations in light‐emitting diode (LED) technology may offer sustainable outdoor lighting solutions, but scientific evidence is lacking. We investigated the effects of various LED lighting
Nicola van Koppenhagen +3 more
wiley +1 more source
The graphical abstract highlights the research collaboration with fishers through interviews to record fishers' knowledge and participatory monitoring, to provide data on small‐scale fisheries in three clear water rivers (Trombetas, Tapajos and Tocantins).
Renato A. M. Silvano +10 more
wiley +1 more source

