期刊文献+
共找到150篇文章
< 1 2 8 >
每页显示 20 50 100
The Theory of Soil and Water Ecology is a Major Scientific Issue 被引量:2
1
作者 SUN Fazheng 《Journal of Landscape Research》 2021年第4期69-72,共4页
The theory of soil and water ecology is an important scientific issue related to the fundamental and overall situation of ecological environment and has important strategic significance for the protection of the earth... The theory of soil and water ecology is an important scientific issue related to the fundamental and overall situation of ecological environment and has important strategic significance for the protection of the earth’s ecological environment.Applying the theory of soil and water ecology to soil and water conservation can upgrade soil and water conservation from version 1.0 to version 2.0 of soil and water ecological conservation and further expand the space of soil and water conservation.The paper suggests that while giving full play to the existing strength of soil and water conservation departments,it should establish national soil and water conservation commission for coordinating multi sector forces and vigorously promoting the realization of beautiful and rich China. 展开更多
关键词 Soil and water ecology The theory of soil and water ecology Soil and water conservation Ecological environment
下载PDF
The Effects of Pen Fish Culture on the Ecological Environments of Taihu Lake
2
作者 YANGZai-fu CHENLi-qiao +5 位作者 LIUQi-gen SHIWei-gang CHENYong ZHOUZhong-liang SONGBin LIUHuan 《Agricultural Sciences in China》 CAS CSCD 2003年第12期1398-1403,共6页
Effects of pen fish culture in Taihu lake were studied and summarized. During 1984 to 2001, pen fish culture of Taihu lake developed from extensive models to intensive and high-returned ones, the cultured species were... Effects of pen fish culture in Taihu lake were studied and summarized. During 1984 to 2001, pen fish culture of Taihu lake developed from extensive models to intensive and high-returned ones, the cultured species were shifted from fishes to crabs. Pen fish culture has caused eutrophication and detrimental effect to the ecological environment and fishery. The measures of sustainable development for pen fish culture and ecological environment protection were suggested. 展开更多
关键词 Pen fish culture Taihu lake Ecological environment Measures of sustainable development
下载PDF
The Theory of Soil and Water Ecology is the Common Theoretical Basis in the Field of Ecological Environment
3
作者 SUN Fazheng 《Journal of Landscape Research》 2022年第2期95-98,共4页
From the perspective of system concept and practical needs,the field of ecological environment needs new theories that can grasp the whole and command the overall situation.Soil and water ecology is the holistic view ... From the perspective of system concept and practical needs,the field of ecological environment needs new theories that can grasp the whole and command the overall situation.Soil and water ecology is the holistic view of nature of seeing both macrocosm and microcosm,is the largest common divisor of various types of ecosystems on the earth and will effectively integrate all ecological processes related to human beings,animals and plants.Starting from the principle of soil and water ecology,the paper resolved that:①the essence of landscape,forest,field,lake,grass,sand and ice is soil and water ecology and;②the fundamental reason of the ecological and environmental crises of climate change,global warming and loss of biodiversity lies in the change and destruction of the earth’s soil and water ecology.The theory of soil and water ecology is a major scientific issue related to the fundamental and overall situation of the ecological environment,is the golden key to understand and solve contemporary ecological and environmental issues and is the common theoretical basis in the field of ecological environment. 展开更多
关键词 Soil and water ecology Theory of soil and water ecology Ecological environment Theoretical basis
下载PDF
School Clubs Combined with Ecology
4
作者 Fang Sun 《Journal of Contemporary Educational Research》 2021年第1期70-73,共4页
The ecological civilization education will be introduced into primary school courses in the future,aiming to enhance people’s environmental awareness.As the model school of Beijing green ecology and sustainable devel... The ecological civilization education will be introduced into primary school courses in the future,aiming to enhance people’s environmental awareness.As the model school of Beijing green ecology and sustainable development education,Beijing experimental primary school attached to Capital Normal University,focus on new energy and sustainable development education,has been practicing and exploring effectively on ecological education.Detailed works are as follows:Making sure the educating purpose of ecological technology educational development;Improving the normative development of ecological education;Training and taking good advantages of core teachers;Constructing ecological special course system;Combining the school clubs with social programs with wonderful works created by both teachers and students. 展开更多
关键词 students’clubs ecological environment Technology ecosystem characteristic campus
下载PDF
Underground salt water intrusion and ecological environments in inland north-west China
5
《Global Geology》 1998年第1期45-46,共2页
关键词 Underground salt water intrusion and ecological environments in inland north-west China
下载PDF
The coordinated evolution of ecological environment,public service,and tourism economy along the Silk Road Economic Belt,using the Dual-Carbon Targets 被引量:1
6
作者 Shuo Yang Wei Guo +1 位作者 Tianjun Xu Tongtong Liu 《Chinese Journal of Population,Resources and Environment》 2024年第1期34-47,共14页
Carbon peak and carbon neutrality(dual-carbon)are important targets for the international response to climate change.The Silk Road Economic Belt is a strategic resource region and is important for future ecological en... Carbon peak and carbon neutrality(dual-carbon)are important targets for the international response to climate change.The Silk Road Economic Belt is a strategic resource region and is important for future ecological environment and tourism development.Based on the“dual-carbon”targets,the Single index quantification,Multiple index synthesis,and Poly-criteria integration evaluation model were used in this study to measure the coordinated development index of the ecological environment,public service,and tourism economy along the Silk Road Economic Belt and to analyze its spatial and temporal evolution.Further,it explores the dynamic evolution and development trend of the three systems using the Kernel Density and Grey Markov Prediction Model.The results show that the coordinated development index along this region needs to be improved during the study period.Furthermore,the coordinated development index of the Southwest region is relatively higher than that of the Northwest region.From the development trend of the three systems,all of them develop in a stable manner;however,the tourism economy system is easily affected by external disturbances.The coordinated development index of the three systems changes dynamically and tends to be in a good state of coordination.There is a certain spatial and temporal heterogeneity.The gravity center of the coordinated development index has been in the Southwest region.During the forecast period,the coordinated development index along this region will improve significantly,while insufficient and unbalanced development will continue. 展开更多
关键词 Dual-carbon Ecological environment Public services Tourist economy Silk Road Economic Belt
下载PDF
Assessment on eco-environmental quality of the Yellow River Basin by considering desertification index
7
作者 AN Min MENG Fan +4 位作者 HE Weijun XUE Fang SONG Mengfei XIE Ping WANG Bei 《Journal of Mountain Science》 SCIE CSCD 2024年第10期3275-3292,共18页
Desertification has had a significant impact on the ecological environment of the Yellow River Basin(YRB)in China.However,previous studies on the evaluation of the ecological environment quality(EEQ)in the YRB have pa... Desertification has had a significant impact on the ecological environment of the Yellow River Basin(YRB)in China.However,previous studies on the evaluation of the ecological environment quality(EEQ)in the YRB have paid limited attention to the indicator of desertification.It is of great significance to incorporate the desertification index into the spatiotemporal assessment of the EEQ in the YRB in order to protect the ecological environment in the region.In this study,based on multi-source remote sensing data from 91 cities in the YRB,this article proposes a desertification remote sensing ecological index(DRSEI)model,which builds upon the traditional Remote Sensing Ecological Index(RSEI)model,to analyze the spatiotemporal changes in the EEQ in the YRB from 2001 to 2021.Furthermore,using the geographic detector(GD),and geographically and temporally weighted regression(GTWR)model,the study assesses the impact of human and natural factors on the EEQ in the YRB.The research findings indicate that:(1)Compared to the traditional RSEI,the improved DRSEI shows a decreasing trend in the evaluation results of the EEQ.Among the 24 cities,the change in DRSEI exceeds 0.05 compared to RSEI,accounting for 26.37%of the YRB.The remaining 67 cities have changes within a range of less than 0.05,accounting for 73.63%of the YRB.(2)The results of the GD for individual and interactive effects reveal that rainfall and elevation have significant individual and interactive effects on the EEQ.Furthermore,after the interaction with natural factors,the explanatory power of human factors gradually increases over time.The spatial heterogeneity results of GTWR demonstrate that rainfall has a strong direct positive impact on the EEQ,accounting for 98.90%of the influence,while temperature exhibits a more pronounced direct inhibitory effect,accounting for 76.92%of the influence.Human activities have a strong negative impact on the EEQ and a weak positive impact. 展开更多
关键词 Ecological environment quality Desertification index Desertification remote sensing ecological index Driving factors Yellow River Basin
下载PDF
Assessment of vegetation cover changes and the contributing factors in the Al-Ahsa Oasis using Normalized Difference Vegetation Index(NDVI)
8
作者 Walid CHOUARI 《Regional Sustainability》 2024年第1期42-53,共12页
The abandonment of date palm grove of the former Al-Ahsa Oasis in the eastern region of Saudi Arabia has resulted in the conversion of delicate agricultural area into urban area.The current state of the oasis is influ... The abandonment of date palm grove of the former Al-Ahsa Oasis in the eastern region of Saudi Arabia has resulted in the conversion of delicate agricultural area into urban area.The current state of the oasis is influenced by both expansion and degradation factors.Therefore,it is important to study the spatiotemporal variation of vegetation cover for the sustainable management of oasis resources.This study used Landsat satellite images in 1987,2002,and 2021 to monitor the spatiotemporal variation of vegetation cover in the Al-Ahsa Oasis,applied multi-temporal Normalized Difference Vegetation Index(NDVI)data spanning from 1987 to 2021 to assess environmental and spatiotemporal variations that have occurred in the Al-Ahsa Oasis,and investigated the factors influencing these variation.This study reveals that there is a significant improvement in the ecological environment of the oasis during 1987–2021,with increase of NDVI values being higher than 0.10.In 2021,the highest NDVI value is generally above 0.70,while the lowest value remains largely unchanged.However,there is a remarkable increase in NDVI values between 0.20 and 0.30.The area of low NDVI values(0.00–0.20)has remained almost stable,but the region with high NDVI values(above 0.70)expands during 1987–2021.Furthermore,this study finds that in 1987–2002,the increase of vegetation cover is most notable in the northern region of the study area,whereas from 2002 to 2021,the increase of vegetation cover is mainly concentrated in the northern and southern regions of the study area.From 1987 to 2021,NDVI values exhibit the most pronounced variation,with a significant increase in the“green”zone(characterized by NDVI values exceeding 0.40),indicating a substantial enhancement in the ecological environment of the oasis.The NDVI classification is validated through 50 ground validation points in the study area,demonstrating a mean accuracy of 92.00%in the detection of vegetation cover.In general,both the user’s and producer’s accuracies of NDVI classification are extremely high in 1987,2002,and 2021.Finally,this study suggests that environmental authorities should strengthen their overall forestry project arrangements to combat sand encroachment and enhance the ecological environment of the Al-Ahsa Oasis. 展开更多
关键词 Normalized Difference Vegetation Index(NDVI) Vegetation cover Ecological environment Land use and land cover(LULC) Urban expansion Al-Ahsa Oasis
下载PDF
Coupling coordination analysis of Mazu culture,socio-economy and ecological environment of Meizhou Island
9
作者 FU Wei-jia WU Ying-qi +2 位作者 LUO Zi-xuan YAO Jun-bing FU Li-jun 《Ecological Economy》 2024年第1期85-100,共16页
Taking the pilgrimage,tourism and cultural island of Meizhou Island as an example,the evaluation index system of the coupling and coordinated development of“Mazu culture,socio-economy,eco-environment”(MSE)compound s... Taking the pilgrimage,tourism and cultural island of Meizhou Island as an example,the evaluation index system of the coupling and coordinated development of“Mazu culture,socio-economy,eco-environment”(MSE)compound system was constructed.The index weights were determined by AHP-entropy method,and the coupling degree,coordinated degree,comprehensive evaluation index and grey correlation degree of MSE system of Mazu Island from 2012 to 2022 were measure.The results showed that:(1)the comprehensive evaluation indexes of the three subsystems was on the rise in general,but the evaluation index of the ecological subsystems increased relatively slowly.(2)The coupling degree was only in the running-in stage in 2012,and the other years were in the coordinated coupling stage.(3)The coupling coordination degree increased from 0.35 in 2012 to 0.82 in 2022,the coupling coordination level was changed from mild imbalance to good coordination.(4)Through the comparison of grey correlation degree,the 24 indexes in the evaluation index system had great influence on the coupling coordination degree of MSE system.The coupling coordination degree was closely related to the development of socio-economy and the spread of Mazu culture.With the rapid development of tourism brought about by the spread of Mazu culture,the pressure on the ecological environment will be increasing.Compared with the rapid growth of tourism and economy,it is equally important to strengthen environmental protection and pay attention to the quality of ecological environment development. 展开更多
关键词 Meizhou Island Mazu culture socio-economy ecological environment comprehensive evaluation index coupling coordination degree
下载PDF
Groundwater and environmental challenges in Asia
10
作者 Yan-pei Cheng Fa-wang Zhang +1 位作者 Hua Dong Xue-ru Wen 《Journal of Groundwater Science and Engineering》 2024年第2期223-236,共14页
Asia stands out as the most populous and geographically diverse region globally.The pressing issues of water resource development and the resulting ecological impacts are exacerbated by the region's rapid populati... Asia stands out as the most populous and geographically diverse region globally.The pressing issues of water resource development and the resulting ecological impacts are exacerbated by the region's rapid population growth and economic expansion.Groundwater,a vital source of water in Asia,faces significant disparities in distribution and suffers from unsustainable exploitation practices.This study applies groundwater system theory and categorizes Asia into 11 primary groundwater systems and 36 secondary ones,based on intercontinental geological structures,climate,terrain,and hydrogeological characteristics.As of the end of 2010,Asia's assessed groundwater resources totalled 4.677×10^(9) m^(3)/a,with exploitable resources amounting to 3.274×10^(9) m^(3)/a.By considering the geological environmental impacts of groundwater development and the distinctive characteristics of terrain and landforms,six categories of effect zones with varying distribution patterns are identified.The current research on Asia's groundwater resources,environmental dynamics,and human impacts aims to provide a theoretical foundation for sustainable groundwater management and environmental conservation in the region. 展开更多
关键词 ASIA Groundwater resources Groundwater quality Ecological environment Environmental impacts
下载PDF
Food Security Problems and Solutions in China Based on the Strategy of Sustainable Agricultural Development
11
作者 Chongzhe JIAO 《Asian Agricultural Research》 2024年第2期16-17,30,共3页
China attaches great importance to food security.With the strong promotion of the government,Chinas grain output has achieved a great feat from"shortage"to"surplus in bumper years"and then to"... China attaches great importance to food security.With the strong promotion of the government,Chinas grain output has achieved a great feat from"shortage"to"surplus in bumper years"and then to"rising steadily",achieving a record"increase for the tenth consecutive year".From the current balance of food supply and demand in China,the food security situation can be guaranteed on the whole.However,if we analyze the food security in China from the perspective of agricultural sustainable development strategy,there are some difficulties,such as the reduction of cultivated land area,the decline of cultivated land quality,the fragility of agricultural ecological environment,and the transformation of residentsconsumption structure.This paper analyzes the difficulties faced by the development of food security in China under the strategy of sustainable agricultural development,and puts forward that to implement the strategy of sustainable agricultural development,it is necessary to realize the coordinated development of food security,science and technology,ecological environment,resources and society. 展开更多
关键词 Sustainable development Food security Ecological environment
下载PDF
Design and Implementation of an Intelligent Monitoring and Early Warning System for Kitchen Garbage Treatment
12
作者 Dexian HUANG Binjun GAN 《Meteorological and Environmental Research》 2024年第3期68-71,共4页
With a population of 1.4 billion in China and a huge daily output of kitchen waste,intelligent treatment of kitchen waste is imperative.This article elaborates on the design and implementation of an intelligent monito... With a population of 1.4 billion in China and a huge daily output of kitchen waste,intelligent treatment of kitchen waste is imperative.This article elaborates on the design and implementation of an intelligent monitoring and early warning system from five aspects:system architecture design,hardware equipment selection and configuration,data collection and processing flow,early warning algorithm and model development,and system integration and testing verification.It also points out the advantages of the intelligent monitoring and early warning system in kitchen waste treatment. 展开更多
关键词 Environmental sanitation Ecological environment Garbage disposal Intelligent systems
下载PDF
Ecological Environment Monitoring Station of Yanshan Branch,Wenshan Prefecture Ecological Environment Bureau,Yunnan Province,Yanshan 663100,China
13
作者 Sumei LI Guofang ZENG +1 位作者 Lei YIN Zhangyue WANG 《Meteorological and Environmental Research》 2024年第5期14-16,20,共4页
How ecological environmental monitoring provides scientific and technological strength for ecological environmental management was studied.In recent years,the Ecological Environment Monitoring Station of Yanshan Branc... How ecological environmental monitoring provides scientific and technological strength for ecological environmental management was studied.In recent years,the Ecological Environment Monitoring Station of Yanshan Branch,Wenshan Prefecture Ecological Environment Bureau,Yunnan Province has developed into a provincial environmental education base,a provincial science education base,and a national environmental protection facility open to the public by relying on monitoring equipment and facilities,personnel training,monitoring and law enforcement interaction,analysis of abnormal data,and countermeasures and suggestions were put forward for the problems in the development. 展开更多
关键词 Ecological environment monitoring Ecological environment management Scientific and technological strength
下载PDF
Research of Future Directions and Considerations for Implementation of the Forest City Strategy
14
作者 Renrui Wang 《Journal of Geoscience and Environment Protection》 2024年第5期1-16,共16页
A “Forest City” (FC) is an urban area that has a significant amount of forest cover. It is now a green urban development strategy that is supported by numerous nations. This essay compares the many FC implementation... A “Forest City” (FC) is an urban area that has a significant amount of forest cover. It is now a green urban development strategy that is supported by numerous nations. This essay compares the many FC implementation strategies used in developed and developing countries and explores potential future paths for this tactic. The variations between FC in terms of measurement targets, air purification, street trees, and forestry development are thoroughly compared in this research. This essay goes on to explore FC’s potential in the future regarding policy changes and the environment based on this comparison. Therefore, this essay focuses on the necessity of considering industrial innovation, encouraging biodiversity, lowering greenhouse gas emissions, paying attention to forest restructuring, and being more responsive to the issues provided by urbanization in the future global implementation of FC. 展开更多
关键词 Forest City Policy Adjustment Ecological Environment Measurement Objectives
下载PDF
Countermeasures for Qinghai-Tibet Plateau to Cope with Climate Change and Ecological Environment Safety 被引量:7
15
作者 伏洋 张国胜 +1 位作者 李凤霞 刘宝康 《Agricultural Science & Technology》 CAS 2010年第1期140-146,共7页
The monitoring,prediction and assessment of status about climate changes and ecological environment at home and abroad were discussed in this study,and the scientific significance and countermeasures for Qinghai-Tibet... The monitoring,prediction and assessment of status about climate changes and ecological environment at home and abroad were discussed in this study,and the scientific significance and countermeasures for Qinghai-Tibet Plateau to cope with these problems were also put forward. 展开更多
关键词 Climate chages Cope with Ecological environment SAFETY Qinghai-Tibet Plateau COUNTERMEASURES
下载PDF
Relationship between Rice Cultural Diversity and Ecological Environment in Yunnan Province of China 被引量:3
16
作者 曾亚文 杜娟 +3 位作者 普晓英 罗曦 杨树明 杨涛 《Agricultural Science & Technology》 CAS 2012年第10期2247-2256,共10页
[Objective] This paper aims to confirm that Yunnan is one origin center of rice and human in the world.[Method] The complicated and unique ecological environment in Yunnan makes Yunnan Province the largest center of g... [Objective] This paper aims to confirm that Yunnan is one origin center of rice and human in the world.[Method] The complicated and unique ecological environment in Yunnan makes Yunnan Province the largest center of genetic diversity and cultural diversity of rice and human being as well as the cradle of human childhood.[Result] The genetic diversity and cultural diversity of rice and human being is closely related to the ecosystem diversity.Rice civilization in Yunnan can be divided into four types,including the diversity center region of rice civilization in southwestern Yunnan,diffusion region of rice civilization of Hani-Zhuang in southern Yunnan,rice civilization region of water-drought rotation in central Yunnan and poverty region of rice civilization in northern Yunnan.Southwestern Yunnan is not only the center of genetic ecological diversity and rice cultural diversity,but also the center of origin and diversity of crop genetic diversity.It is not only a transitional region among East Asia continent,South Asian sub-continent and Indo-China Peninsula,but also a core integration area of Chinese culture,Indian culture and Mid-south Peninsula culture which all merge with the local culture.[Conclusion] Yunnan is one common sphere where the origin of human evolution is closely related to the origin of rice evolution. 展开更多
关键词 Rice culture Ecological environment Origin evolution Human being YUNNAN
下载PDF
Current situation of Chinese forestry tactics and strategy of sustainable development 被引量:3
17
作者 陆兆华 吴钢 +1 位作者 马欣 柏广新 《Journal of Forestry Research》 SCIE CAS CSCD 2002年第4期319-322,338,共4页
Based on the analysis of the current situation of Chinese forestry and a series of ecological, environmental, eco-nomic, and social problems, this paper emphasized on the importance of forests in social and economic d... Based on the analysis of the current situation of Chinese forestry and a series of ecological, environmental, eco-nomic, and social problems, this paper emphasized on the importance of forests in social and economic development in China The author pointed out that sustainable development, particularly the sustainable development of forestry, is the inevitable choice to solve the problems of ecological environment and social economics. The objectives, criteria, and strategies of sus-taining forestry were also demonstrated and expounded, from the viewpoints of ecology, economics, and sociology. 展开更多
关键词 FOREST FORESTRY Sustainable development Strategy Ecological environment China
下载PDF
应用3S技术研究厦门市森林生态网络布局 被引量:4
18
作者 肖胜 叶功富 +4 位作者 倪志荣 郭剑锋 吴锡麟 黄丽 陈杰 《中国城市林业》 2003年第3期10-13,共4页
该文探讨了3S技术在厦门市森林生态网络体系中的应用方法和手段,从整体上提高了厦门市生态环境建设的水平。本文可为相同自然条件和社会务件的城市森林生态建设提供参考。
关键词 3S technology Xiamen City Forest ecological environment DISTRIBUTION
下载PDF
On the Regional Ecological Planning of the Ancient Yellow River Course in Shangqiu City 被引量:2
19
作者 田颖 李亚光 蒋航 《Journal of Landscape Research》 2010年第3期35-39,共5页
This paper analyzed the problems of eco-environment along the ancient Yellow River course and, by combining with the planning scheme of ecological projects of the ancient Yellow River course in Shangqiu City, discusse... This paper analyzed the problems of eco-environment along the ancient Yellow River course and, by combining with the planning scheme of ecological projects of the ancient Yellow River course in Shangqiu City, discussed its ecological planning ways in terms of the principles, objectives, methods and contents of the ecological planning and design to promote the regional eco-environment construction of the ancient Yellow River course. 展开更多
关键词 Ancient Yellow River Course Ecological environment Ecological planning Environmental restoration
下载PDF
Influence of Soil Geochemistry to the Quality of Winter Jujube in Zhanhua 被引量:1
20
作者 高宗军 王敏 +1 位作者 庞绪贵 刘中业 《Agricultural Science & Technology》 CAS 2010年第9期209-212,216,共5页
[Objective] The aim was to investigate the effects of soil geochemistry on the quality of winter jujube.[Method]Based on the data of ecological geochemical survey in lower Yellow River Basin,the relevance of the geoch... [Objective] The aim was to investigate the effects of soil geochemistry on the quality of winter jujube.[Method]Based on the data of ecological geochemical survey in lower Yellow River Basin,the relevance of the geochemistry environment in top soils and the quality of winter jujubes was analyzed.[Result]Cd,Ni and other heavy metals in the soil more obviously affected the nutrition of winter jujubes.[Conclusion]B,Mn,MgO,Cd,Zn,K2O and other elements in the root soil played an important role in the enrichment of Cr and Hg of winter jujube fruit.And the absorption of heavy metals in winter jujube root could be interfered by improving fertilization method,to reduce the enrichment of harmful elements in jujube fruit. 展开更多
关键词 Zhanhua winter jujube Ecological geochemical environment Heavy metal element
下载PDF
上一页 1 2 8 下一页 到第
使用帮助 返回顶部