Carrying Capacity Evaluation on Water Resources of Jilin Province Based on PCA-GA-XGboost Model by PANG Bowen, LI Zhijun

“…To improve the efficiency and accuracy of carrying capacity evaluation in water resources, this paper proposes an indicator evaluation model based on principal component analysis (PCA), genetic algorithm (GA), and eXtreme gradient boosting tree (XGBoost).Meanwhile, fourteen evaluation indicators are defined with water resources, socio-economics, and ecological environment employed as subsystems.PCA is adopted to reduce the dimensionality of the evaluation indicators.Additionally, based on XGBoost, this paper conducts an evaluation analysis on the carrying capacity of water resources from 2011 to 2021 and utilizes GA to optimize four parameters in XGBoost.The results show that after simplifying the evaluation indicators by PCA, the correlation coefficient of the PCA-GA-XGBoost model is better than GA-B, GA-SVM, GA-XGBoost, and XGBoost.The carrying capacity of water resources in Jilin Province from 2011 to 2021 is between 0.192 and 0.724, presenting a trend of first increasing, then decreasing, and finally increasing with improved carrying capacity situation.Meanwhile, the built-in function of eigenvalue importance ranking in the model is leveraged to conclude the fact that the indicator with the largest importance is identified as the applied fertilizer amount per hectare (0.530 7).…”
Get full text

Peace Education through Agroecology and Organic Farming by Fabio Caporali

“…All sectors of human activity, including agriculture, can potentially contribute to building a cultural barrier to a mounting wave of wars. The ecological approach to agriculture through the ecosystem concept is suitable for unveiling the power of cooperation in developing symbiotic relationships between and among agroecosystem components for attaining a balance of ecosystem services (supporting, provisioning, regulating, and cultural). …”
Get full text

BioVars - A bioclimatic dataset for Europe based on a large regional climate ensemble for periods in 1971–2098 by Anne Reichmuth, Oldrich Rakovec, Friedrich Boeing, Sebastian Müller, Luis Samaniego, Andreas Marx, Hanna Komischke, Andreas Schmidt, Daniel Doktor

“…Abstract Ongoing ecological research is concerned with analysing climate-induced changes in species distribution. …”
Get full text

Harnessing Insect Chemosensory and Mechanosensory Receptors Involved in Feeding for Precision Pest Management by Tingwei Mi, Chengwang Sheng, Cassidy Kylene Lee, Peter Nguyen, Yali V. Zhang

“…By interfering with these essential behaviors, we can effectively control pest populations while minimizing environmental impacts and promoting ecological balance.…”
Get full text

Pouvoir parler des pesticides ? Une recherche-action pour éprouver les capabilités des travailleurs viticoles (Gironde, France) by Ludovic Ginelli, Jacqueline Candau, Agossè Nadège Degbelo, Camille Noûs

“…This configuration of pesticide use "transition" raises health, environmental and social justice issues, as do specific social movements, such as Environmental Justice in the United States or "ecologism of the poor" in the South (Martinez-Alier, 2014). …”
Get full text

Water Quality Prediction Based on Exponential Smoothing-Gray Model for Kuncheng Lake by RONG Jie, ZHANG Fengtai

“…Predicting the development trend of surface water environmental quality is an important basis for managing the current water environment as it provides an important reference for water environment planning,evaluation,and management.The water quality data total phosphorus of the central section of Kuncheng Lake for 2012—2021 are leveraged to build an exponential smoothing-grey prediction GM (1, 1) model.The results show that after smoothing,the model can filter out some short-term irregular changes in the data,that is,small-scale fluctuations in water quality,to reduce the randomness of water quality data so that the data can better reflect the overall trend.The model output value (simulated value) fits well with the original sequence (smoothed value).After the model passes the test,the total phosphorus that restricts the section from reaching the class Ⅲ water standard is predicted.The results show that room for further improvement remains for the central section of the lake to reach the class Ⅲ lake water standard during the 14th Five-Year Plan period.Close attention should continue to be paid to improving the water quality of the section to reach the standard,and sustained efforts should be made to strengthen the treatment and ecological restoration of the lake.…”
Get full text

Presence of organochlorines in water and oysters Crassostrea sp. in Cananeia-SP by Cláudia Simões Reigada, Luiz Carlos Luchini, Edison Barbieri

“…Being a place of great ecological importance in the ecosystem, the Cananeia estuarine lagoon complex presents several aquatic environments subject to contamination by human activities. …”
Get full text

Optimized Distribution of Beijing Population Based on CA-MAS by Haoguang Liang, Zhong Wang

“…In recent years rapid expansion of populations, disruption of ecological environments, and power shortages to areas of high population density in undeveloped areas have appeared in major cities in China. …”
Get full text

L’éducation relative à l’environnement pour stimuler différents niveaux d’engagement environnemental : le cas du dispositif Mon Village Espace de Biodiversité by Aurélie Tshibangu , Nicolas Becu , Anne-Caroline Prévot , Sylvie Houte 

“…It is based on the example of an environmental education program launched in the Long Term Ecological Research platform (LTSER) Plaine et Val de Sèvre area (France) : Mon Village Espace de Biodiversité. …”
Get full text

Growth-rate distributions of gut microbiota time series by E. Brigatti, S. Azaele

“…Abstract Logarithmic growth-rates are fundamental observables for describing ecological systems and the characterization of their distributions with analytical techniques can greatly improve their comprehension. …”
Get full text

Improvement of the Early-Age Compressive Strength, Water Permeability, and Sulfuric Acid Resistance of Scoria-Based Mortars/Concrete Using Limestone Filler by Aref Al-Swaidani, Andraos Soud, Amina Hammami

“…Despite the economic, ecological, and technical benefits of its adding, it is often associated with shortcomings such as the need of moist-curing for longer time and a lower early strength. …”
Get full text

Becoming a Caregiver: The Role of the Environment in the Process of Children Becoming Responsible for Others by Carolina Remorini

“…To gain an insight into how children develop sophisticated and ecologically relevant skills to become autonomous and responsible for the care of others within the context of environmental interdependence, we present and analyze a cultural practice that is salient to the identity and way of life in rural communities of the Andean region in South America: becoming a shepherd. …”
Get full text

Modeling co-infection of Ixodes tick-borne pathogens by Yijun Lou, Li Liu, Daozhou Gao

“…The study confirms a mechanism of the ecological fitness paradox, the establishment of B. microti which has weak fitness (basic reproduction number less than one). …”
Get full text

Assessment of runoff composition and residence time using stable isotopes and hydrochemical characteristics in Urumqi River Basin, northwest China by Siqi Wu, Fang Feng, Shuang Jin, Zhongqin Li, Michael A. Urban, Qiaohua Huang, Qiannian Shi

“…Study region: The Urumqi River, nourished by glaciers in arid regions of northwest China, plays a crucial role in the economic, ecological, and social development of the region. Study focus: Water resource management in arid regions is a perennial concern, compounded by the complex interplay of factors such as global warming and glacial response dynamics. …”
Get full text

Lethal Male Combat of <i>Anastatus japonicus</i> (Hymenoptera: Eupelmidae), an Egg Parasitoid of Lepidopterous and Hemipterous Pests by Muhammad Yasir Ali, Gonzalo A. Avila, Zheng-Yu Luo, Muhammad Asghar Hassan, Khalid Ali Khan, Jin-Ping Zhang, Feng Zhang

“…A number of biological and ecological factors are deducted that likely contribute to the evolution of male aggressive behavior in <i>A. japonicus</i>.…”
Get full text

Climate Legal Mobilization Under the New Aarhus Regulation by Mario Pagano

“…However, this contribution holds that the internal review mechanism is being used strategically by environmental NGOs with the intention to contest - even before the EU judiciary - not only EU administrative acts, but also broader policy arrangements, representing the legal infrastructure of the EU ecological transition. In this regard, the Aarhus internal review mechanism can now be considered a real scientific dispute settlement forum, where NGOs and EU institutions can confront each other and disagree on the way scientific evidence is taken into account in the EU policymaking. …”
Get full text

Assessment of Fruit Traits and Antioxidant Capacity in Wild and Cultivated Genotypes of <i>Ziziphus</i> sp. by Radu Liviu Șumălan, Dana Maria Copolovici, Manuela Crișan, Florin Stănică, Renata Maria Șumălan, Andreea Lupitu, Simona Ioana Vicas, Silvia Mot, Lucian Copolovici, Sorin Ciulca

“…Due to their high variability and ecological plasticity, jujube species and genotypes can be utilized in marginal areas and on land where few plants could be efficiently exploited. …”
Get full text

Research and Application of the Hydraulic Connection Section in Nanmujiang River Fishway at Datengxia Water Conservancy Project by FAN Suixing, JIANG Guangcan, HUANG Tianbao

“…As the only fish migration channel in the Nanmujiang River and the letdown path of ecological flow required by the downstream fish spawning sites,the Nanmujiang River fishway in Datengxia has complex operating conditions and large design flow variation.In addition,there is a water level difference between the technical fishway and the imitating natural fishway,which requires a hydraulic connection section to ensure a smooth transition of flow regimes and velocities.In order to ensure the effectiveness of the hydraulic connection section in the Nanmujiang River fishway,a variety of schemes based on previous project experience are proposed,and then the preliminary design scheme is determined by studying and comparing the schemes.Finally,the final design scheme is optimized and determined through physical model tests.According to the measured data of physical model tests,the optimized design scheme meets the requirements of fish in sailing upstream,and it has been applied in the construction of the Datengxia project and passed the completion test.At present,the scheme is in the trial operation stage.This paper proposes two different types of hydraulic connection section design schemes,which are respectively suitable for small and large flow rates and can provide references for similar fishway designs.…”
Get full text

Improving Carbon Mitigation Potential through Grassland Ecosystem Restoration under Climatic Change in Northeastern Tibetan Plateau by Lin Huang, Xinliang Xu, Quanqin Shao, Jiyuan Liu

“…Then we estimated its potential of climate mitigation benefits to address the question of whether ecological restoration could be effective in reversing the decline of ecosystem carbon mitigation service. …”
Get full text

Simulation and Analysis of Multi-sluice Dam Channel Flow Evolution Based on MIKE11 by ZHANG Shixin, ZHANG Jing

“…Due to the influence of sluices,the flow propagation law of multi-sluice dam is complicated,which brings great difficulties to the forecast of river flow and water dispatching.In this paper,the river channel of Qipanshan Reservoir and Tuanjie Sluice of Puhe River is taken as the research object,and the river is divided into seven sections.On the basis of the MIKE11HD construction,the influence of multi-sluice dams on river flow evolution is analyzed,and the change of peak discharge travel time and flow attenuation in different sections is studied by the model.The results show that there is a significant power function relationship between the flood peak discharge and the travel time.As the flood peak discharge is larger,the travel time will be shorter.The attenuation rate per kilometer is related to the characteristics of the channel and the vegetation on both sides of the channel.Under the influence of artificial channelization,the discharge attenuation rate per kilometer is minimum in the sluice 7-sluice 6 section,and maximum in the section of the rubber dam on the sluice to Laoshiniu rubber dam.This study can provide a basis for the joint operation of multi-sluice dam in the ecological corridor of Puhe River,and also provide a reference for the flow simulation and flood forecast of other multi- sluice dam channels.…”
Get full text