Problems and Development Suggestions of Nature Education in Jiangxi Province

The forest coverage rate of Jiangxi Province ranks second in China.It has rich natural resources,a long history of ancient color culture and rich red culture.In the development of nature education,Jiangxi Province has great potential and advantages.This paper introduces the development conditions of nature education in Jiangxi Province,summarizes the problems existing in the development of nature education in Jiangxi Province from the aspects of the types of nature education and the construction of nature education base,such as simple content and single form,imperfect infrastructure and lack of professionals,and puts forward some suggestions on the development of nature education in Jiangxi Province.

Influencing Factors and Improvement Suggestions for Agricultural Green Development Performance:Empirical Insights from China

Agricultural green development is an essential direction for global sustainable agriculture.The academic literature,however,needs to place greater emphasis on studying the factors influencing agricultural green development performance and how such performance can be improved.A theoretical framework for agricultural green development performance was constructed in this paper using the Super-SBM model,which considers undesirable outputs,to measure the agricultural green development performance of 330 cities at or above the prefecture level in China(excluding Tibet Autonomous Region,Hong Kong,Macao and Taiwan of China)from 2007 to2018.Furthermore,the influencing mechanism of agricultural green development performance was then analyzed using a spatial econometric model.The results show that:1)from 2007 to 2018,China’s agricultural green development performance experienced three stages of evolution:‘rise,decline and rise’.2)The regions with high performance agricultural green development are mainly distributed in eastern China,northeastern China,and southern Qinghai Province.3)The agricultural economic level,industrialization process,and labor quality play significant roles in promoting local agricultural green development performance,while such performance is obviously inhibited by the openness level and the government’s environmental regulations.Local agricultural green development performance is significant inhibited by the agricultural economic level and accelerated industrialization process in neighboring cities,while significantly promoted by the agricultural industrial structure in neighboring cities.Some suggestions for improving agricultural green development performance are proposed based on these research results,which can provide scientific references for promoting sustainable agriculture.

Introduction and Protection Suggestions of Biodiversity

Through the introduction of the concept,content,conservation significance and species value of biodiversity,the cognition of the research content,analysis methods and research directions of biodiversity was deepened.In view of the problems faced by biodiversity conservation at present,such as the accelerated disappearance of species,the unsound protection regulation system,the irrational spatial pattern of species protection,and the lack of long-term follow-up research,specific improvement suggestions were put forward,and have a positive guiding significance for future biodiversity conservation.

Analysis of Investigation on Ebian Spotted Cattle and Suggestions

Ebian spotted cattle has the ability to adapt to the local natural ecological environment,and is one of the excellent local cattle breeds in Sichuan.Ebian spotted cattle is a breed of cattle for both service and meat use and formed through long-term natural selection and artificial selection.Because of the weak development and utilization of this breed,the economic benefits of excellent breeds have not been fully brought into play,and farmers'enthusiasm in breeding is poor,so that the number of Ebian spotted cattle has reduced year by year.In order to strengthen the protection,development and utilization of Ebian spotted cattle as a local excellent breed,combined with the third national survey of livestock and poultry genetic resources in 2021,Ebian spotted cattle was investigated,and a comprehensive,scientific and objective analysis of its population numbers was conducted.Besides,reasonable suggestions were put forward.

Some Suggestions for College Students to Improve Listening

Language is the tool of communication. English is a compulsory course for every student. English listening, as an essential part of English learning, is an effective way to obtain new information. But for many students, the most difficult part for them is listening. The paper aims to give some suggestions to the college English learners and to help them to improve their listening comprehension abilities. Such as: to strengthen language knowledge, to build up self-confidence, to use listening strategies, to learn western culture, and to listen extensively.

The Problems and Suggestions in Expanding the Vocabulary for College Students

Vocabulary plays a very important role in learning English. Having a large vocabulary is undeniable necessary, but the important thing is that proper approaches should be adopted in English learning. This paper focuses on the analyses of the students’ problems in vocabulary learning process, and gives some suggestions to our students so as to help them expand their vocabulary.

Suggestions on How to Learn English at College

Many students don't know how to learn English at college.Without a goal in life and unable to manage their time,they are likely to idle away their youth.This paper intends to offer some suggestions to students on how to learn English at college,and hopefully they will experience the satisfaction and pleasure of learning English.

Seismic performance analysis and design suggestion for frame buildings with cast-in-place staircases

Many staircases in reinforced concrete （RC） frame structures suffered severe damage during the Wenchuan earthquake. Elastic analyses for 18 RC structure models with and without staircases are conducted and compared to study the influence of the staircase on the stiffness, displacements and internal forces of the structures. To capture the yielding development and damage mechanism of frame structures, elasto-plastic analysis is carried out for one of the 18 models. Based on the features observed in the analyses, a new type of staircase design i.e., isolating them from the master structure to eliminate the effect of K-type struts, is proposed and discussed. It is concluded that the proposed method of staircase isolation is effective and feasible for engineering design, and does not significantly increase the construction cost.

Suggestions on Forest Ecological Compensation—Taking Mudanjiang City as an Example

The forest ecological compensation is an important factor to balance the interests of different areas for sustainable development and environment protection. Mudanjiang City in Heilongjiang Province of China is rich of forest resources. The forestry coverage rate reached 62.3% in 2014, after forestry conservation program from 2002. The authors explored the factors impacted on forest ecological compensation in Mudanjiang City, which was a demonstration as a case study, through experts＇ evaluation scores and AHP methodology to analyze the forest ecological compensation factors and lay the foundation for the establishment of ecological compensation mechanism. At the same time, we provided an example to explore the effective way and speed up the establishment of ecological compensation mechanism. The study found that the main factors that determined forest ecological compensation in Mudanjiang City were ecology and natural resources. Based on the analyses, some suggestions were put forward to promote the mechanism in a sustainable way.

Status and Suggestions of the Pesticide Use in the Protected Vegetable Fields in Shandong Province

This paper briefly introduced the issues of food safety and environmental pollution caused by pesticide residues in protected vegetables, discussed the status and problems of pesticide use in the protected vegetables in Shandong Province, and analyzed the main factors leading to the pesticide residues, including the low education of most farmers, lack of correct identification of diseases and insect pests, use of pesticides based on personal experience, pesticide preparation by bare hands, large dose of pesticide, frequent application, pesticide spraying without protection, uneven spraying, leakage of pesticide from the sprayers, etc.. Finally, based on the vegetable planting features and advantages in Shandong Province, some suggestions were proposed for references, such as, to enhance the monitoring of pesticide residue, to improve the educational level of farmers and to scentifically use the pesticide.

Suggestion Mining from Opinionated Text of Big Social Media Data

:Social media data are rapidly increasing and constitute a source of user opinions and tips on a wide range of products and services.The increasing availability of such big data on biased reviews and blogs creates challenges for customers and businesses in reviewing all content in their decision-making process.To overcome this challenge,extracting suggestions from opinionated text is a possible solution.In this study,the characteristics of suggestions are analyzed and a suggestion mining extraction process is presented for classifying suggestive sentences from online customers’reviews.A classification using a word-embedding approach is used via the XGBoost classifier.The two datasets used in this experiment relate to online hotel reviews and Microsoft Windows App Studio discussion reviews.F1,precision,recall,and accuracy scores are calculated.The results demonstrated that the XGBoost classifier outperforms—with an accuracy of more than 80%.Moreover,the results revealed that suggestion keywords and phrases are the predominant features for suggestion extraction.Thus,this study contributes to knowledge and practice by comparing feature extraction classifiers and identifying XGBoost as a better suggestion mining process for identifying online reviews.

A suggestion for the animal model of liver transplantation

The Editor welcomes submissions for possible publication in the Letters to the Editor section that consist of commentary on an article published in the Journal or other relevant issues.

Current Plant Landscaping in Southern Gardens and Suggestions for the Optimized Configuration

Abundant lands of China such as Suzhou, Hangzhou, Sichuan and Chongqing are all located in the basin of the Yangtze River, and subtropical evergreen broad-leaved forest belt, enjoy mild climate, sufficient rainfall, rich ornamental plant resources and diversifi ed landscaping techniques. In the long-term landscaping practices, plant furnishing arts characterized by diversifi ed layer division, elegant styles, delicate and vivid images have been formed, but are still limited in combination of plant species and selection of varieties. In accordance with personal experience in plant landscaping in recent years, the author provided a few suggestions for the optimized confi guration of plant landscapes in southern regions.

Application status,problems and suggestions of artificial intelligence in medical field

介绍了新一代人工智能应用发展的背景,梳理了人工智能在医学影像、辅助诊断、健康管理、疾病预 测、药物研发领域中的应用现状,从数据、算法、主体责任、法律法规、评估标准、人才保障方面分析了人工 智能在医疗领域应用中的问题与挑战,并从行业整体发展的角度出发,对医学人工智能的应用发展提出相关建议.

Development Stage and Evolution Cause of European Union Agriculture and Suggestions for Chinese Agricultural Development

Agriculture is a basic industry related to national economy and people’s livelihood,and is also the cornerstone of national economic development. European Union(EU) is the second largest exporter of agricultural products in the world,and its agricultural production change has international influence. In this paper,starting from two angles of EU agricultural development scale and target,development stage of its agricultural production is explored,and development and evolution causes of EU agriculture are analyzed: efficiency and benefit targets cause change of EU agricultural management model; change of agricultural product supply-demand pattern leads the evolution of EU agricultural development idea; the reflection of agricultural development target impels the transformation of EU agricultural development. On this basis,the below conclusions are obtained: agricultural development could evolve according to the changes of economic and social conditions; it is a necessary requirement of promoting internal market stability and international market harmony to actively use agricultural support policies adapting to agricultural development at each stage; it is an important measurement of impelling agricultural modernization process to promote innovation of agricultural management model and development of market integration; it is an inevitable road of realizing sustainable development of agriculture to develop ecological agriculture and emphasize equal development of agriculture and countryside. On this basis,it could provide the reference for agricultural development of China based on EU agricultural development experience.

Suggestions on English Vocabulary Knowledge Acquisition for Vocational College Students

Vocabulary,as one of the fundamental aspects of language,is vital for communication and language learning.Vocational college students should do their best to master the basic 2,000 words after entering college,and then concentrate on academic and technical vocabulary.Meanwhile,the teachers can do many things to help the students enlarge their vocabulary.This thesis provides suggestions on vocabulary acquisition for teachers and learners.

The present situation and suggestions about the study of flax germplasm resource in China

The present situation and the problems about the conservation and evaluation of flax germplasm resources and the application of biotechnology in the study of flax germplasm in China were discussed and some suggestions were put forward in the paper.

Present Situations and Suggestions for Large-scale Development of Chenopodium quinoa Willd.

In this paper,based on the study of Chenopodium quinoa Willd.planting,it is concluded that the current situations of large-scale development of C.quinoa Willd.include the following four aspects:first,the research on C.quinoa Willd.varieties needs to be strengthened;second,it is insufficient to master the training environment and cultivation techniques;third,the large-scale planting of C.quinoa Willd.is not enough;fourth,the degree of mechanization of C.quinoa Willd.planting is not enough.In view of the above situation,this paper puts forward the following effective suggestions to strengthen the large-scale development of C.quinoa Willd.:the first is to increase the investment in C.quinoa Willd.variety research;the second is to strengthen the analysis of introduction and screening of C.quinoa Willd.varieties;the third is to study the best planting environment and cultivation techniques of C.quinoa Willd.;the fourth is to increase the scale of mechanized production of C.quinoa Willd.;the fifth is to increase the research and development of C.quinoa Willd.related products and their deep processing technology.

Suggestions on the Effective Development of Shale Gas in China

Shale gas is a practical resource with great potential that could be economically explored and developed in the near future. It has been commercially developed in North America and other places. Featuring a vast distribution, a low abundance,unfavorable reservoir conditions, ultra-low permeability and a fast production decline, shale gas is more difficult to develop than conventional natural gas, as it needs advanced drilling and completion technology to develop. During the early stage of shale gas exploration and development, the United States offered enterprises necessary incentives such as tax reductions and exemptions and subsidies to achieve sustainable shale gas development and encourage technological progresses. By comparing the state of China's shale gas development with that of the US' in terms of geological conditions, production technology,market price, tax relief, subsidy periods and amount, this paper intends to put forward related suggestions for the effective development of shale gas according to the current status of development.

Compilation of Emission Inventory of Air Pollution Sources in Beijing and Suggestions on Emission Reduction Policies

By establishing emission inventory of air pollution sources in Beijing,and classifying and compiling the pollutant types and corresponding pollution source data in more detail,it could provide the reference for studying causes of haze and related policy impact assessment in Beijing.In this paper,selecting relevant data published in the Beijing Statistical Yearbook,referring to emission coefficients in the technical guidelines for the preparation of various pollution sources,and combining characteristics of energy consumption in Beijing,emission inventory of air pollution sources in six parts is established:thermal power plant,industrial combustion source(by industry),technological process source(by product variety),motor vehicle,building construction and residents life,and the contribution rate of each part to air pollutants is given.Finally,policy suggestions for haze control in Beijing are put forward.