Subjects: Biology >> Botany >> Applied botany submitted time 2023-08-04 Cooperative journals: 《广西植物》
Abstract： With the rapid development of biodiversity informatics, more and more open biological data can be used by researchers. Taking an open data platform as an example, analyzing the research hotspots and development trends in the field of biodiversity in China will help biodiversity researchers and policy-makers keep abreast of the current status and trends of biological research, and provide decision support for the construction of biodiversity in China. We searched the full text of the literature in CNKI and Google Scholar from 2013 to 2023 with the relevant search terms of “National Specimen Information Infrastructure (NSII)”, and retrieved a total of 1 070 NSII-supported literature, including journal articles (822), dissertations (233), popular science articles (5), conference articles (6) and reports (4).Through the means and methods of bibliometrics, the 822 journal articles supported by NSII are explored from the aspects of publication status, research topics and hot spots, research institutions, etc., to explore the current status, hot spots and trends of biodiversity research supported by NSII. According to the results obtained from the keyword co-occurrence network map, the research hotspots of biodiversity focus on the analysis and modeling of species distribution, climate change, taxonomy, biodiversity research, and platform construction. Biodiversity informatics is developing rapidly in China, in the future, it is still necessary to improve data source construction, resource integration, sharing capability, professional competence, and international cooperation to promote the development of biodiversity scientific research continuously.
Subjects: Biology >> Botany >> Applied botany submitted time 2023-07-26 Cooperative journals: 《广西植物》
Abstract： The relationship between biodiversity and ecosystem functioning (BEF) and the underlying mechanisms have been a hot issue in ecological research. Whereas many BEF studies have focused on grassland ecosystems, relatively few have been conducted in forest ecosystems which account for a large proportion of primary production in the terrestrial ecosystem. Biodiversity–Ecosystem Functioning Experiment China Platform (BEF-China) contains the most tree species with the highest level of diversity in subtropical forests. In this review, we first summarized research progress in BEF-China, and then gave suggestions for future BEF research. The research based on BEF-China mainly focused on the impact of biodiversity on multi-ecosystem functionings, e.g. productivity, nutrient cycling and multi-trophic interaction. We suggest that future studies in BEF-China should strengthen the application of new techniques such as high-throughout sequencing and remote sensing, and continue research on multi-dimensions, multi-components, multi-ecosystem functions, and multi-scales in BEF study. The research progress of BEF-China can help in better understanding the BEF relationships in forest ecosystems, and provide a scientific support for biodiversity conservation and ecological restoration.
Subjects: Biology >> Botany >> Plant ecology, plant geography submitted time 2016-05-03
Abstract： Aims The concentration of CO2 and other greenhouse gases in the atmosphere has considerably increased over last century and is set to rise further. Forest ecosystems play a key role in reducing CO2 concentration in the atmosphere and mitigating global climate change. Our objective is to understand carbon storage and its distribution in forest ecosystems in Zhejiang Province, China. Methods By using the 8th forest resource inventory data and 2011–2012 field investigation data, we estimated carbon storage, density and its distribution in forest ecosystems of Zhejiang Province. Important findings The carbon storage of forest ecosystems in Zhejiang Province was 602.73 Tg, of which 122.88 Tg in tree layer, 16.73 Tg in shrub-herb layer, 11.36 Tg in litter layer and 451.76 Tg in soil layer accounting for 20.39%, 2.78%, 1.88% and 74.95% of the total carbon storage, respectively. The carbon storage of mixed broadleaved forests was 138.03 Tg which ranked the largest (22.91%) among all forest types. The young and middle aged forests which accounted for 70.66% of the total carbon storage were the main body of carbon storage in Zhejiang Province. The carbon density of forest ecosystems in Zhejiang Province was 120.80 t·hm–2 and that in tree layer, shrub-herb layer, litter layer and soil layer were 24.65 t·hm–2, 3.36 t·hm–2, 2.28 t·hm–2 and 90.51 t·hm–2, respectively. The significant relationship between soil organic carbon storage and forest ecosystem carbon storage indicates that soil carbon played an important role in shaping forest ecosystem carbon density. Carbon density of tree layer increased with age in natural forests, but decreased in the order over-mature >near-mature >mature >middle-aged >young forest in plantations. The proportions of young and middle aged forests were larger than any other age classes. Thereby, the carbon storage of forest ecosystems in Zhejiang Province could be increased through a proper forest management.
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