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1. Temporal-Spatial Differentiation and Optimization Analysis of Cultivated Land Green Utilization Efficiency in China

Author:
Chen, Qianru,   et al.   ; Xie, Hualin;     Show all 2 Author
Source:
Land 2019 v.8 no.11
ISSN:
2073-445X
Subject:
agricultural machinery and equipment; carbon; cities; economic development; ecosystems; emissions; farmers; food security; infrastructure; land use; markets; mineral fertilizers; models; pesticides; pollution; rural areas; China
Abstract:
... Cultivated land is closely related to national food security, rural economic development and social stability. The cultivated land pollution and carbon emissions caused by chemical fertilizers, pesticides, film residues, etc., in the process of cultivated land utilization pose a serious threat to the cultivated land ecosystem in China. The comprehensive analysis on the cultivated land green utiliz ...
DOI:
10.3390/land8110158

2. Warning of negative effects of land-use changes on ecological security based on GIS

Author:
Chen, Qianru,   et al.   ; Xie, Hualin; He, Yafen; Choi, Yongrok; Cheng, Hao;     Show all 5 Authors
Source:
The Science of the total environment 2020 v.704 pp. 135427
ISSN:
0048-9697
Subject:
Markov chain; decision making; geographic information systems; land resources; land use change; models; risk; sustainable development; urbanization
Abstract:
... Urbanization leads to dramatic changes in regional land-use patterns and threatens regional ecological security. Based on GIS and existing key ecological spaces, timely threat warnings to regional ecological spaces caused by artificial land-use changes and the identification of appropriate precautionary measures are necessary for the sustainable development of regional land resources. Taking 2010 ...
DOI:
10.1016/j.scitotenv.2019.135427

3. Isolation of two iron-reducing facultative anaerobic electricigens and probing the application performance in eutrophication water

Author:
Chen, Qianru,   et al.   ; Zhang, Xia; Zhang, Hongpei; Wang, Chuan; Zhao, Yuqing; Zhou, Qiaohong; Wu, Zhenbin;     Show all 7 Authors
Source:
Annals of microbiology 2020 v.70 no.1 pp. 21
ISSN:
1590-4261
Subject:
Bacillus cereus; ammonium nitrogen; anodes; bacteria; biocatalysts; biofilm; bioremediation; carbon; electrical properties; electricity; electricity generation; electrochemistry; eutrophication; industrialization; microbial fuel cells; nitrate nitrogen; phylogeny; power generation; sediments; water treatment
Abstract:
... PURPOSE: Sediment microbial fuel cell (SMFC) is a promising bioremediation technology in which microbes play an important role. Electricigens as the bio-catalysts have effect on pollution control and electricity generation. It is of great significance to screen the microorganisms with the ability of generating electricity. METHODS: The SMFC anode biofilm was used as microbiological source to study ...
DOI:
10.1186/s13213-020-01568-7

4. Removal performance of antibiotics and antibiotic resistance genes in swine wastewater by integrated vertical-flow constructed wetlands with zeolite substrate

Author:
Chen, Qianru,   et al.   ; Du, Lu; Zhao, Yuqing; Wang, Chuan; Zhang, Hongpei; Zhang, Xia; Zhang, Liping; Wu, Junmei; Wu, Zhenbin; Zhou, Qiaohong;     Show all 10 Authors
Source:
The Science of the total environment 2020 v.721 pp. 137765
ISSN:
0048-9697
Subject:
Acinetobacter; Arundo donax; Bacillus (bacteria); Pseudomonas; adsorption; antibiotic resistance genes; biodegradation; community structure; constructed wetlands; ribosomal DNA; soil ecosystems; sulfonamides; swine; tetracyclines; wastewater; zeolites
Abstract:
... Antibiotics and antibiotic resistance genes (ARGs) in swine wastewater have an irreversible impact on the surrounding water and soil ecosystems. Herein, integrated vertical-flow constructed wetlands (IVCWs) were constructed to assess the effects of zeolite and plants on the removal of sulfonamides (SMs), tetracyclines (TCs), and related ARGs (tetW, tetO, tetM, sul I, sul II, and sul III) from dige ...
DOI:
10.1016/j.scitotenv.2020.137765

5. Prospects for Agricultural Sustainable Intensification: A Review of Research

Author:
Chen, Qianru,   et al.   ; Xie, Hualin; Huang, Yingqian; Zhang, Yanwei; Wu, Qing;     Show all 5 Authors
Source:
Land 2019 v.8 no.11
ISSN:
2073-445X
Subject:
crop production; environmental science; farmers; models; population pressure; socioeconomic factors; sustainable agricultural intensification; systems engineering; Africa; Asia; Europe
Abstract:
... In recent years, as a way to achieve higher agricultural output while reducing the negative impact of agricultural production on the environment, agricultural sustainable intensification has attracted worldwide attention. Under the framework of "connotation definition-measuring method-influencing factor-implementation path", this paper systematically sorts out the main research results in the fiel ...
DOI:
10.3390/land8110157

6. Size-dependent Whitening Activity of Enzyme-degraded Fucoidan from Laminaria japonica

Author:
Chen, Qianru,   et al.   ; Kou, Lingyun; Wang, Fengwu; Wang, Ying;     Show all 4 Authors
Source:
Carbohydrate polymers 2019
ISSN:
0144-8617
Subject:
Flavobacterium; Saccharina japonica; antioxidant activity; cosmetics; enzyme inhibition; enzymes; fucoidan; ingredients; melanogenesis; molecular weight; sulfates
Abstract:
... Fucoidan from Laminaria japonica is a kind of sulfate polysaccharide with high molecular weight (MW) and broad bioactivities. This study was performed to investigate the relationship between MW and whitening activity of fucoidan and to exploit a novel functional ingredient for whitening cosmetics. High sulfate content fucoidan was enzymic degraded by Flavobacterium RC2-3 produced fucoidanase. Two ...
DOI:
10.1016/j.carbpol.2019.115211

7. Influence of the Farmer’s Livelihood Assets on Livelihood Strategies in the Western Mountainous Area, China

Author:
Chen, Qianru,   et al.   ; Liu, Zhifei; Xie, Hualin;     Show all 3 Authors
Source:
Sustainability 2018 v.10 no.3
ISSN:
2071-1050
Subject:
empirical research; farmers; farms; financial assets; households; issues and policy; livelihood; logit analysis; mountains; poverty; risk; China
Abstract:
... The livelihood strategies of farm households depend on the conditions of their assets, and farm households cope with risks and shocks through portfolios consisting of different types of assets. Thus, discussing the relationship between the livelihood assets and the livelihood strategies of farm households helps in understanding their livelihood conditions and in formulating reasonable poverty redu ...
DOI:
10.3390/su10030875

8. Identification and Structure–Activity Relationship of Intestinal Epithelial Barrier Function Protective Collagen Peptides from Alaska Pollock Skin

Author:
Chen, Qianru,   et al.   ; Song, Wenkui; Wang, Ying; Han, Yan; Zhang, Hongwei; Li, Bo; Yu, Guangli;     Show all 7 Authors
Source:
Marine drugs 2019 v.17 no.8
ISSN:
1660-3397
Subject:
Gadus chalcogrammus; animal models; arginine; cation exchange chromatography; collagen; dietary supplements; drugs; epithelium; gel chromatography; glutamine; hydrolysates; hydrophilicity; hydrophobicity; ingredients; intestines; molecular weight; protective effect; reversed-phase high performance liquid chromatography; structure-activity relationships; tumor necrosis factors
Abstract:
... The effect of collagen peptides (CPs) in intestinal mucosal protection has been approved in both cell and animal models. However, its structure–activity relationship and efficient peptide sequences are unclear, which hinders the in-depth study of its action mechanism and relative nutraceuticals and pharmaceuticals development. In this work, size exclusion chromatography, cation-exchange chro ...
DOI:
10.3390/md17080450
PubMed:
31370332
PubMed Central:
PMC6723256

9. Collagen peptides administration in early enteral nutrition intervention attenuates burn-induced intestinal barrier disruption: Effects on tight junction structure

Author:
Chen, Qianru,   et al.   ; Gao, Xiang; Zhang, Hongwei; Li, Bafang; Yu, Guangli; Li, Bo;     Show all 6 Authors
Source:
Journal of functional foods 2019 v.55 pp. 167-174
ISSN:
1756-4646
Subject:
animal models; burns (injuries); collagen; enteral feeding; intestinal mucosa; mitogen-activated protein kinase; nutritional intervention; occludins; peptides; permeability; phosphorylation; protective effect; signal transduction; tight junctions; transcription factor NF-kappa B
Abstract:
... The effect of collagen peptides (CPs) administration in early basic enteral nutrition (EN) intervention after burn injury on intestinal barrier function was investigated in mice model. Burn-induced increases of intestinal permeability and disruption of intestinal barrier integrity were significantly attenuated by CPs supplemented EN at post-burn day 1, 3 and 7 as compared with only basic EN fed gr ...
DOI:
10.1016/j.jff.2019.02.028

10. Spatial-temporal disparities and influencing factors of total-factor green use efficiency of industrial land in China

Author:
Chen, Qianru,   et al.   ; Xie, Hualin; Lu, Fucai; Wang, Wei; Yao, Guanrong; Yu, Jiangli;     Show all 6 Authors
Source:
Journal of cleaner production 2019 v.207 pp. 1047-1058
ISSN:
0959-6526
Subject:
business enterprises; clean energy; energy conservation; industrial sites; labor force; local government; research and development; China
Abstract:
... Achieving “green” use of industrial land is beneficial to save precious land resources, protect ecological environments and achieve the green development of China's economy. In this paper, we estimate the dynamic performance of the total-factor green use efficiency of industrial land (TGUEIL) in China by using a global non-radial directional distance function (GNDDF) and the non-radial Malmquist p ...
DOI:
10.1016/j.jclepro.2018.10.087

11. Is Urban Land Development Driven by Economic Development or Fiscal Revenue Stimuli in China?

Author:
Chen, Qianru,   et al.   ; Shu, Cheng; Xie, Hualin; Jiang, Jinfa;     Show all 4 Authors
Source:
Land use policy 2018 v.77 pp. 107-115
ISSN:
0264-8377
Subject:
cities; income; land use; local government; models; population density; urban areas; urbanization; China
Abstract:
... Since the reform and opening-up, urban land development in China mainland has been increasing dramatically with significant regional differences. Using the panel data of municipal districts in 246 cities at the prefectural or higher levels in Chinese mainland from 2004 to 2014, based on the analysis of the differences in land development intensity in municipal districts, a model of factors affecti ...
DOI:
10.1016/j.landusepol.2018.05.031

12. Impact of Agricultural Labor Transfer and Structural Adjustment on Chemical Application: Comparison of Past Developments in the Ecological Civilization Pilot Zones of China and Their Future Implications

Author:
Chen, Qianru,   et al.   ; Lu, Hua; Xie, Hualin; Jiang, Jinfa;     Show all 4 Authors
Source:
Sustainability 2018 v.10 no.6
ISSN:
2071-1050
Subject:
agricultural industry; agricultural machinery and equipment; agrochemicals; cash crops; elderly; farm labor; fertilizer application; grain crops; horticultural crops; labor force; mineral fertilizers; models; orchards; pesticides; planting; vegetables; China
Abstract:
... Reducing the application of agricultural chemicals is a key point in promoting the construction of an ecological civilization and the green development of the agricultural sector. Based on statistical yearbook data from provinces which became the first national ecological civilization pilot zones in China, this paper quantitatively analyzes the impact of labor transfers and structural adjustment o ...
DOI:
10.3390/su10061909

13. Spatial-temporal disparities, saving potential and influential factors of industrial land use efficiency: A case study in urban agglomeration in the middle reaches of the Yangtze River

Author:
Chen, Qianru,   et al.   ; Xie, Hualin; Lu, Fucai; Wu, Qing; Wang, Wei;     Show all 5 Authors
Source:
Land use policy 2018 v.75 pp. 518-529
ISSN:
0264-8377
Subject:
case studies; cities; governance; industrial sites; industrialization; labor; lakes; land markets; land use; resource allocation; Yangtze River
Abstract:
... Based on the sequential generalized directional distance function (SGDDF) and Metafrontier non-radial Malmquist index (MNMI), the dynamic changes, saving potential, efficiency decompositions, and influencing factors of industrial land use efficiency are analyzed. This paper is a case study on the urban agglomeration in the middle reaches of the Yangtze River focusing on the years between 2003 and ...
DOI:
10.1016/j.landusepol.2018.04.027

14. 110th Anniversary: Unleashing the Full Potential of Quinones for High Performance Aqueous Organic Flow Battery

Author:
Chen, Qianru,   et al.   ; Sun, Pan; Liu, Yahua; Li, Yuanyuan; Shehzad, Muhammad A.; Liu, Yazhi; Zuo, Peipei; Yang, Zhengjin; Xu, Tongwen;     Show all 9 Authors
Source:
Industrial & engineering chemistry process design and development 2019 v.58 no.10 pp. 3994-3999
ISSN:
1520-5045
Subject:
batteries; benzoquinones; catalysts; chemical structure; electrochemistry; electrolytes; electron transfer; energy; process design; renewable energy sources
Abstract:
... Aqueous organic flow batteries (AOFBs) are promising energy storage solutions to counteract the intermittent and fluctuating nature of renewable energy. However, we have limited options of electrolyte chemistry and we discarded many organic compounds because of their sluggish electrochemical kinetics, which would compromise the power capability of an AOFB. Here, exemplified by 2,5-dihydroxy-3,6-di ...
DOI:
10.1021/acs.iecr.8b06391

15. Does intensive land use promote a reduction in carbon emissions? Evidence from the Chinese industrial sector

Author:
Chen, Qianru,   et al.   ; Xie, Hualin; Zhai, Qunli; Wang, Wei; Yu, Jiangli; Lu, Fucai;     Show all 6 Authors
Source:
Resources, conservation, and recycling 2018 v.137 pp. 167-176
ISSN:
0921-3449
Subject:
capital; carbon; carbon dioxide; energy; greenhouse gas emissions; industrial sites; issues and policy; labor; land use; models; population size; research and development; China
Abstract:
... Human land use activity is an important contributor to the growth of CO₂ emissions. Thus, reasonable land use is an effective method of reducing CO₂ emissions. Based on an extended STIRPAT (Stochastic Impacts by Regression on Population, Affluence, and Technology) model, the impacts of population size, wealth level, technology level, and four representative indicators of intensive industrial land ...
DOI:
10.1016/j.resconrec.2018.06.009

16. Functional Calcium Binding Peptides from Pacific Cod (<i>Gadus macrocephalus</i>) Bone: Calcium Bioavailability Enhancing Activity and Anti-Osteoporosis Effects in the Ovariectomy-Induced Osteoporosis Rat Model

Author:
Chen, Qianru,   et al.   ; Zhang, Kai; Li, Bafang; Zhang, Zhaohui; Zhao, Xue; Hou, Hu;     Show all 6 Authors
Source:
Nutrients 2018 v.10 no.9
ISSN:
2072-6643
Subject:
Fourier transform infrared spectroscopy; Gadus macrocephalus; acid phosphatase; alkaline phosphatase; animal models; bioavailability; biomechanics; blood serum; bone density; bone health; bone mineralization; calcium; circular dichroism spectroscopy; collagen; intestinal absorption; intestines; laboratory animals; osteocalcin; osteoporosis; ovariectomy; peptides; rats; trypsin
Abstract:
... Calcium binding peptides from Pacific cod (Gadus macrocephalus) bone have attracted attention due to their potential effects on bone health. In this study, calcium binding peptides (CBP) were prepared from Pacific cod bone by trypsin and neutral protease. Ultraviolet spectra, circular dichroism (CD), and Fourier transform infrared spectroscopy (FTIR) revealed that carboxyl and amino groups in CBP ...
DOI:
10.3390/nu10091325
PubMed:
30231572
PubMed Central:
PMC6163644

17. Effects of early enteral nutrition supplemented with collagen peptides on post-burn inflammatory responses in a mouse model

Author:
Chen, Qianru,   et al.   ; Hou, Hu; Wang, Shikai; Zhao, Xue; Li, Bafang;     Show all 5 Authors
Source:
Food & function 2017 v.8 no.5 pp. 1933-1941
ISSN:
2042-650X
Subject:
Gadus chalcogrammus; animal models; blood serum; collagen; endotoxins; enteral feeding; gene expression; gene expression regulation; glutamine; inflammation; interleukin-6; males; messenger RNA; mice; patients; phosphorylation; small intestine; transcription factor NF-kappa B; tumor necrosis factor-alpha
Abstract:
... The effect of early enteral nutrition (EN) supplemented with Alaska pollock skin-derived collagen peptides (CPs) on post-burn inflammatory responses was investigated in a mouse model. Male blab/c mice were randomly assigned to four groups: a sham burn (SB) group, a control group (burn + EN + glycine, BE), a positive control group (burn + EN + glutamine, BEG) and a treatment group (burn + EN + CPs, ...
DOI:
10.1039/c7fo00181a

18. Effect of clinoptilolite on ammonia emissions in integrated vertical-flow constructed wetlands (IVCWs) treating swine wastewater

Author:
Chen, Qianru,   et al.   ; Du, Lu; Trinh, Xuantung; Wang, Chuan; Liu, Shuangyuan; Liu, Panpan; Zhou, Qiaohong; Xu, Dong; Wu, Zhenbin;     Show all 9 Authors
Source:
Ecological engineering 2018 v.122 pp. 153-158
ISSN:
0925-8574
Subject:
adsorption; ammonia; ammonium nitrogen; biogeochemical cycles; constructed wetlands; denitrifying microorganisms; emissions; nitrogen; porous media; quartz; sand; swine; volatilization; wastewater; zeolites
Abstract:
... Constructed wetlands (CWs) is an effective way to removal nitrogen (N) from swine wastewater, which accompanying with the process of ammonia (NH3) volatilization. However, the removal pathway of NH3 volatilization has adverse impacts on the natural biogeochemical cycle of N. Here, this paper presents the first attempt to investigate the potential use of clinoptilolite in reducing NH3 volatilizatio ...
DOI:
10.1016/j.ecoleng.2018.07.037

19. Enhancement of microbial nitrogen removal pathway by vegetation in Integrated Vertical-Flow Constructed Wetlands (IVCWs) for treating reclaimed water

Author:
Chen, Qianru,   et al.   ; Du, Lu; Trinh, Xuantung; Wang, Chuan; Wang, Huihui; Xia, Xue; Zhou, Qiaohong; Xu, Dong; Wu, Zhenbin;     Show all 9 Authors
Source:
Bioresource technology 2018 v.249 pp. 644-651
ISSN:
0960-8524
Subject:
Acinetobacter; Canna indica; Pseudomonas; Rhizobium; Rhodopseudomonas; biodiversity; community structure; constructed wetlands; denitrification; high-throughput nucleotide sequencing; microbial communities; nitrogen; nitrogen balance; planting; quantitative polymerase chain reaction; vegetation; wastewater treatment
Abstract:
... Constructed wetland is an efficient way to lower N load from wastewater treatment plants. Here, the nitrogen removal rate and nitrogen balance, as well as the microbial community structure in IVCWs planted with different vegetation for treating reclaimed water were investigated. The results showed that IVCWs planted with vegetation generally achieved a higher TN removal rate than unplanted treatme ...
DOI:
10.1016/j.biortech.2017.10.074

20. Phosphorus removal performance and biological dephosphorization process in treating reclaimed water by Integrated Vertical-flow Constructed Wetlands (IVCWs)

Author:
Chen, Qianru,   et al.   ; Du, Lu; Liu, Panpan; Zhang, Xia; Wang, Huihui; Zhou, Qiaohong; Xu, Dong; Wu, Zhenbin;     Show all 8 Authors
Source:
Bioresource technology 2017 v.243 pp. 204-211
ISSN:
0960-8524
Subject:
Canna generalis; Pseudomonas; adsorption; autumn; constructed wetlands; high-throughput nucleotide sequencing; phosphorus; planting; ribosomal DNA; summer; wastewater treatment
Abstract:
... Phosphorous removal in adsorption had been extensively researched; however, the biological dephosphorization process and optimum operating parameters have not been discussed or quantified in Integrated Vertical-flow Constructed Wetlands (IVCWs). In this study, IVCWs planted with different plants were employed to evaluate total phosphorus (TP) treatment performance under different hydraulic retenti ...
DOI:
10.1016/j.biortech.2017.06.092