Abstract:
:Enclosure is an effective practice for restoring and rehabilitating the degraded grassland ecosystem caused by overgrazing. Shrub species, which are dominant in most desert grasslands in arid and semiarid regions, have some beneficial ecological functions for grassland restoration. However, how the population structure and spatial pattern of the Artemisiaordosica shrub changes in a grassland ecosystem under enclosed practice is not well understood. This study, conducted in the Mu Us desert in northwest China, was designed to measure the A. ordosica population according to the chronosequence of enclosure (enclosure periods ranged from 5 years, 10 years, 15 years, and 25 years), contrasting this with an adjacent continuously grazed grassland. The results showed that the enclosed grasslands had a higher number of individuals of different age classes (seedling, adult, aging, and dead group) and greater population coverage, but shrubs had significant lower (p < 0.05) crown diameter and height in comparison with those in continuously grazed grassland. Further, enclosed grasslands had a significantly higher (p < 0.05) Shannon-Wiener index (H) and Evenness index (E), but a significantly lower (p < 0.05) Richness index (R) than continuously grazed grassland. The crown of A. ordosica showed a significant linear positive correlation with height in all plots across succession, indicating that it was feasible to analyze the age structure by crown. The crown-class distribution structure of the A.ordosica population approximated a Gaussian distribution model in all survey plots. Within the population, seedling and adult groups exhibited aggregated spatial distribution at small scales, while aging and dead A. ordosica groups showed random distribution at almost all scales in different plots. The seedling A. ordosica group showed a positive correlation with adults at small scales in all plots except in 10 years of enclosure. However, it showed independent correlation with aging and dead groups at almost all scales. In long-term enclosed plots, the mortality rate of the A. ordosica population increased, therefore assistance management practices, such as fertilization, mowing, interval grazing, and seasonal grazing, must be employed to maintain population stability after long-term enclosure. This study can improve understanding and clarify the effects of enclosures in the desert grasslands of northwest China.
journal_name
Int J Environ Res Public Healthauthors
Liu J,Zhang Kdoi
10.3390/ijerph15050946subject
Has Abstractpub_date
2018-05-09 00:00:00issue
5eissn
1661-7827issn
1660-4601pii
ijerph15050946journal_volume
15pub_type
杂志文章abstract::Social activities are an important aspect of health and quality of life of the aging population. They are key elements in the prevention of loneliness. In order to create living environments that stimulate older adults to engage in social activities, more insight is needed in the social activity patterns of the aging ...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章
doi:10.3390/ijerph120910432
更新日期:2015-08-26 00:00:00
abstract::Objective: This study aimed at exploring the compassion attitudes and needs for awareness and training related to a compassionate approach for Medicine, Nursing, and Psychology students, as well as for the academic and administration personnel from the Universidad Técnica Particular de Loja (UTPL, Ecuador) Health Scie...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章
doi:10.3390/ijerph17155425
更新日期:2020-07-28 00:00:00
abstract::To analyze the quality of resuscitation (CPR) performed by individuals without training after receiving a set of instructions (structured and unstructured/intuitive) from an expert in a simulated context, the specific objective was to design a simple and structured CPR learning method on-site. An experimental study wa...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章,随机对照试验
doi:10.3390/ijerph17155495
更新日期:2020-07-30 00:00:00
abstract::The WHO Thematic Platform for Health Emergency and Disaster Risk Management Research Network (TPRN) was established in 2016 in response to the Sendai Framework for Disaster Risk Reduction 2015⁻2030. The TPRN facilitates global collaborative action for improving the scientific evidence base in health emergency and disa...
journal_title:International journal of environmental research and public health
pub_type:
doi:10.3390/ijerph16071232
更新日期:2019-04-06 00:00:00
abstract::The movements of the affected upper limb in infantile hemiplegia are slower and clumsy. This leads to a decrease in the use of the affected hand. The visual effect obtained using the mirror box and the observation of actions in another individual can activate the same structural neuronal cells responsible for the exec...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章
doi:10.3390/ijerph18031051
更新日期:2021-01-25 00:00:00
abstract::Background: The use of a contaminated endoscope may lead to infections due to the transmission of potential pathogens from patient to patient. Methods: Post-reprocessing microbiological surveillance of four duodenoscopes was carried out over a three-year period in the Digestive Endoscopy Unit of an Italian hospital. S...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章
doi:10.3390/ijerph17010140
更新日期:2019-12-24 00:00:00
abstract::Dementia produces major clinical and social problems that have catastrophic consequences for patients and their families. Dementia also complicates clinical care for other co-existing medical conditions. Magnetic Resonance Imaging (MRI) utilization is increasingly used for diagnostic purposes, such as early diagnosis ...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章
doi:10.3390/ijerph16234741
更新日期:2019-11-27 00:00:00
abstract::Insights into barriers and facilitators for healthy eating are needed to improve low-income women's diets and to decrease disease risk. The study objectives were to explore women's qualitative perceptions of influences on their food choices such as food security, their knowledge of nutrition-related health risk factor...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章
doi:10.3390/ijerph17145092
更新日期:2020-07-15 00:00:00
abstract::Acid mine drainage (AMD) is a serious environmental problem resulting from extensive sulfide mining activities. There is a lack of more comprehensive and detailed studies on the effect of AMD on calcareous soil characteristics and seed germination. In this study, five calcareous soil samples, collected from Xiaoyi, Ta...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章
doi:10.3390/ijerph15122742
更新日期:2018-12-05 00:00:00
abstract::Depression in children and adolescents has become a serious public health problem worldwide. The objectives of this study were twofold: first, to investigate the status of depression among children and adolescents on the Qinghai-Tibet Plateau, the highest plateau in the world, with an average altitude of more than 420...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章
doi:10.3390/ijerph18020440
更新日期:2021-01-08 00:00:00
abstract::There have been few epidemiological surveys to establish prevalence and associated risk factors of psychosis in Sub-Saharan Africa. This paper reports a population-based epidemiological survey in rural Kenya of the prevalence of psychotic symptoms and their relationship with demographic, socio-economic and other risk ...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章
doi:10.3390/ijerph9051748
更新日期:2012-05-01 00:00:00
abstract::The Chinese Government has played an important role in organizing the evacuation of typhoon disasters, and in-depth analysis of individual behavioral decisions is a prerequisite for adopting an effective emergency organization plan. Existing evacuation plans only consider how the Government issues the early warning an...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章
doi:10.3390/ijerph17030682
更新日期:2020-01-21 00:00:00
abstract::Particulate matter (PM) is a key indicator of air pollution and a significant risk factor for adverse health outcomes in humans. PM is not a self-contained pollutant but a mixture of different compounds including chemical and biological fractions. While several reviews have focused on the chemical components of PM and...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章,评审
doi:10.3390/ijerph13060592
更新日期:2016-06-14 00:00:00
abstract::There is an urgent need to assess the vulnerability of eco-environmental health to climate change. This paper aims to provide an overview of current research, to identify knowledge gaps, and to propose future research needs in this challenging area. Evidence shows that climate change is affecting and will, in the futu...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章,评审
doi:10.3390/ijerph7020546
更新日期:2010-02-01 00:00:00
abstract::Coronavirus disease 2019 (COVID-19) has quickly become a worldwide health crisis.Although respiratory disease remains the main cause of morbidity and mortality in COVID patients,myocardial damage is a common finding. Many possible biological pathways may explain therelationship between COVID-19 and acute myocardial in...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章,评审
doi:10.3390/ijerph17207371
更新日期:2020-10-09 00:00:00
abstract::Childhood and adolescence overweight and obesity have implications for both health consequences and economic burden. Although it has been an emerging public health problem for primary school children in rural China and the importance of the diet-health link has been stressed for many years, rigorous analysis of the di...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章
doi:10.3390/ijerph17218122
更新日期:2020-11-03 00:00:00
abstract::Introduction: Alcoholism impairs female sexual functions (decreased sex drive, reduced vaginal fluid, difficulty to experience orgasm). AIM:The aim of this study was to evaluate the course of perimenopausal period and sexual life of female alcoholics. Methods: 97 women at the age of 40⁻60 years were qualified with a ...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章
doi:10.3390/ijerph15081639
更新日期:2018-08-02 00:00:00
abstract::While latrine coverage is increasing in India, not all household members use their latrines. Cost-effective, culturally appropriate, and theory-informed behavior change interventions are necessary to encourage sustained latrine use by all household members. We qualitatively examined community perceptions of sanitation...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章
doi:10.3390/ijerph17124472
更新日期:2020-06-22 00:00:00
abstract::Fe2O3, CuO and ZnO nanoparticles (NP) have found various industrial and biomedical applications. However, there are growing concerns among the general public and regulators about their potential environmental and health impacts as their physio-chemical interaction with biological systems and toxic responses of the lat...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章
doi:10.3390/ijerph17031005
更新日期:2020-02-05 00:00:00
abstract::In 2011 over 1.7 million people were hospitalized because of a fragility fracture, and direct costs associated with osteoporosis treatment exceeded 70 billion dollars in the United States. Failure to reach and maintain optimal peak bone mass during adulthood is a critical factor in determining fragility fracture risk ...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章,评审
doi:10.3390/ijerph15050878
更新日期:2018-04-28 00:00:00
abstract::The aim of this study was to examine the association of work stress, exhaustion, well-being, and related individual, organizational, and social factors, focusing especially on age differences in Taiwan. The data were from the 2015 Taiwan Social Change Survey. The participants were community-based adults, aged 18 years...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章
doi:10.3390/ijerph16010050
更新日期:2018-12-25 00:00:00
abstract::Low grip strength has been associated with an increase in depressive symptoms, independent of age group or gender, although the literature has not investigated this association among different chronic diseases. The present study aims to investigate the association of grip strength and depressive symptoms among middle-...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章
doi:10.3390/ijerph17196942
更新日期:2020-09-23 00:00:00
abstract::(1) Background: The aim of the present study was to determine the effects of a virtual reality (VR) program, as a complementary tool to a conventional cardiac rehabilitation (CR) program in phase II of patients with ischemic heart disease compared to a conventional treatment group. (2) Methods: A single blinded random...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章,随机对照试验
doi:10.3390/ijerph17228472
更新日期:2020-11-16 00:00:00
abstract::Coronavirus disease 2019 (COVID-19) pandemic has had a significant impact on public mental health. Our objective was to assess prevalence of depression, anxiety, and stress among the general population in Saudi Arabia during this pandemic. A descriptive cross-sectional approach was used targeting all accessible popula...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章
doi:10.3390/ijerph17249183
更新日期:2020-12-09 00:00:00
abstract::In recent years, attention has been paid to the co-occurrence of attention deficit hyperactivity disorder (ADHD) and obesity, but results in relation to dental caries outcomes differ. The study was conducted to determine obesity/overweight and dental caries in children suffering from ADHD and to draw comparisons with ...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章
doi:10.3390/ijerph17165870
更新日期:2020-08-13 00:00:00
abstract::Antibiotic-resistant Campylobacter could adversely affect treatment outcomes, especially in children. We investigated the antibiotic susceptibility profiles, virulence potentials and genetic relatedness of Campylobacter spp. from paediatric and water samples in the North West Province, South Africa. Overall, 237 human...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章
doi:10.3390/ijerph16122205
更新日期:2019-06-21 00:00:00
abstract::This study assessed the reduction in forced vital capacity of lungs of sand stone quarry workers exposed to high respirable suspended particulate concentration. The sand stone quarry workers are engaged in different type of activities like drilling, loading and dressing. These different working places have different c...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章
doi:10.3390/ijerph200704040005
更新日期:2007-12-01 00:00:00
abstract::Civilian war trauma and torture rank among the most traumatic life experiences; exposure to such experiences is pervasive in nations experiencing both internal and external conflict. This has led to a high volume of refugees resettling throughout the world with mental health needs that primary care physicians may not ...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章,评审
doi:10.3390/ijerph16132309
更新日期:2019-06-28 00:00:00
abstract::Waste source separation is the fundamental premise to ensure effective waste recycling. Whether the entire waste recycling and reduction process can be effectively carried out depends on the waste source separation. Clarifying the driving mechanism of waste separation behavior plays an important role in effectively gu...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章
doi:10.3390/ijerph16101859
更新日期:2019-05-27 00:00:00
abstract::A large body of research has documented disparities in health and access to care for lesbian, gay, and bisexual (LGB) people in the United States. Less research has examined how the level of legal protection afforded to LGB people (the state policy environment) affects health disparities for sexual minorities. This st...
journal_title:International journal of environmental research and public health
pub_type: 杂志文章
doi:10.3390/ijerph15061136
更新日期:2018-06-01 00:00:00