Development of Ecological Agriculture in Xiantao City

This paper takes ecological agriculture as the starting point.On the basis of field investigation and research on the basic situation of the development of ecological agriculture in Xiantao City,this paper focuses on the development models of ecological agriculture in some typical regions such as Xianfeng Village,Zhanggou Town,Chenchang Town and Shazui Street Office in Xiantao City.This paper analyzes many problems that affect and restrict the development of ecological agriculture in Xiantao City,and puts forward some measures and suggestions to promote the development of ecological agriculture in Xiantao City.

Contrastive Research on Domestic and Foreign Ecological Agriculture Policies

In the first place,the definitions of ecological agriculture defined by scholars both at home and abroad are introduced.In the second place,the domestic and foreign ecological agriculture policies are expounded.Through contrastive research on the domestic and foreign ecological agriculture polices,the problems in the development of ecological agriculture in China are found.By mirroring the western experiences in developing ecological agriculture,the countermeasures and relevant suggestions are put forward from the perspective of government.The first one is to increase the subsidies from the government to ecological agriculture.The second one is to clarify the standard of ecological agriculture construction.The third one is to promote the industrialization of ecological agriculture.The fourth one is to strengthen the construction of ecological demonstration region and ecological village.

Overview of Ecological Agriculture with High Efficiency

From the presentation, connotation, characteristics, principles, pattern, and technologies of ecological agriculture with high efficiency, we conduct comprehensive and systematic analysis and discussion of the theoretical and practical progress of ecological agriculture with high efficiency. (i) Ecological agriculture with high efficiency was first advanced in China in 1991. (ii) Ecological agriculture with high efficiency highlights "high efficiency", "ecology", and "combination". (iii) Ecological agriculture with high efficiency is characterized by diverse organisms, good environment, good structure, powerful function, good quality, high benefit, low emission, sustainability. (iv) The yield increase and efficiency increase principle of ecological agriculture with high efficiency lies in full land use, three-dimensional light use, sufficient use of season, multi-layer water consumption, efficient fertilizer consumption, symbiosis and mutual supplement, ecological disaster reduction, recycling. (v) The typical pattern of ecological agriculture with high efficiency includes three-dimensional use pattern, biological symbiosis pattern, multi-industry combination pattern, industrial extension pattern, technology-driven pattern, environmental renovation pattern, resource recycling pattern, leisure and sight-seeing pattern. (vi) The key technologies of ecological agriculture with high efficiency include resource-saving technology, water and fertilizer regulation technology, biological technology for increasing soil fertility, disaster prevention and mitigation technology, comprehensive utilization technology, water conservation technology, structural adjustment technology, energy development technology, watershed control technology, and modern high-tech technology.

Sustainable Development of Agriculture in Northwestern Ecologically Fragile Desert Oasis——A case study of Guazhou County of Gansu Province

Guazhou County of Gansu Province is a typical ecological fragile area lying in the transition area of desert and oasis.The development of its agricultural economy is highly dependent on natural resources and environment.Contradiction of resources characterized agriculture and the fragile ecological environment has become one of the main barriers to log the impact of local agriculture to achieve sustainable development.Aiming at fragile ecological environment and limiting factors of agricultural sustainable development,thoughts and countermeasures of realizing agricultural sustainable development have been proposed.

Functions, Problems and Countermeasures of China’s Rural Ecosystems

At present,the whole country is fully implementing rural revitalization strategy and actively promoting rural ecosystems development in China.From the perspective of ecology and agroecology,the main functions of rural ecosystem in China,the current outstanding problems,and the corresponding countermeasures and measures are discussed in the paper,in order to provide references for promoting the implementation of the strategy of rural revitalization and the sustainable development of rural ecosystem.China’s rural ecosystem has multi-functions such as carrying population,improving environment,providing products,increasing income,expanding employment and tourism,inheriting culture,popularizing science and technology,educating people,training talents,and providing places for the aged urban residents.Currently,there are still many problems and challenges in rural ecosystem in China,such as ecological destruction,waste of resources,environmental pollution,natural disasters,economic poverty,backward science and education,laggard culture and medical care,lack of public services,bad social morality,loss of villagers and disappearance of villages.In order to promote implementation of rural revitalization strategy and to promote sustainable development of rural ecosystems in China,the following measures should be taken based on the principles of integrating “tri-benefits”(economic,ecological and social benefits),gradual progress,comprehensive governance,adaptation to local conditions and long-term efforts and success.Eventually,the following measures are suggested:① enhancing awareness;② planning well;③ improving environment;④ optimizing ecological structure;⑤ improving ecological functions;⑥ improving ecological conditions;⑦ strengthening public services;⑧ improving laws and regulations;⑨ improving great investment;⑩ accelerating personnel training.

Importance of sustainable development of Ecological agriculture regional economic

China kept sustained and rapid economic growth in 30 years, at the same time, bringing a high consumption of resources and greatly damaged ecological environment, so that the resource application and ecological environment which support China ＇ s economic growth are deteriorating, the situation in the vast western region is particularly prominent. Therefore, you must carefully study the new sustainable development model of economic theory under the guidance of scientific concept of development, from the strategic height of a comprehensive, coordinated and sustainable economic and social development and the characterized situation of China＇ s regional economic reality.

Ecosystem Protection in China:A New Paradigm under Ecological Civilization

This paper establishes a theoretical framework to study the fundamental changes in the concept and mechanism of China's ecosystem protection under the paradigm of ecological civilization,and its major implications for global sustainable development.We first examine the damage to the ecosystem of the standard economic growth model,and provide empirical evidence that the traditional ecosystem protection paradigm based on the concept of industrial civilization has been unable to curb serious ecological degradation on a global scale.We then build a new theoretical model to reveal China's new ecosystem protection paradigm based on the concept of ecological civilization,and analyze how it forms a mutually beneficial relationship with economic development by changing the content and mechanism of economic growth.Furthermore,we conduct an empirical analysis of the paradigm shift of China's ecosystem protection and show that there is a significant synergy between China's ecological conservation and economic development under the new paradigm.Finally,we use a game theory model to reveal the significant implications of China's new ecosystem conservation paradigm for global ecological protection,especially for the realization of the expected goals of the post-2020 global biodiversity framework.

Stepwise Ecological Restoration:A framework for improving restoration outcomes

Ecosystem degradation is one of the critical constraints for the sustainable development of our planet.However,recovering an ecosystem to a pre-impairment condition is often not practical.The International Restoration Standards provide the first framework for practical guidance on what constitutes the process of ecological repair and how this repair process can be influenced to improve net ecological benefits.In these Standards,Restorative Continuum is highlighted and it recognises that many do not,yet there is still value in aspiring to improvements to the highest extent possible,with some sites potentially being able to be improved in a stepwise manner.Here we elaborate on these Standards by providing a cross-ecosystem theoretical framework of Stepwise Ecological Restoration(STERE)for promoting higher environmental benefits.STERE allows the selection of suitable restorative modes by considering the degree of degradation while encouraging a transition to a higher state.These models include environmental remediation for completely modified and degraded ecosystems,ecological rehabilitation for highly modified and degraded ecosystems,and ecological restoration for degraded native ecosystems.STERE requires selecting tailored restorative modes,setting clear restorative targets and reference ecosystems,applying a systematic-thinking approach,and implementing a continuous monitoring program at all process stages to achieve a resilient trajectory.STERE allows adaptive management in the context of climate change,and when the evidence is available,to“adapt to the future”to ensure climate resilience.The STERE framework could assist in initiating and implementing restoration projects worldwide,especially in developing countries.

ECOLOGICAL SECURITY EVALUATION OF SUSTAINABLE AGRICULTURAL DEVELOPMENT IN KARST MOUNTAINOUS AREA—A Case Study of Du'an Yao Autonomous County in Guangxi

Ecological security is the main task and applied field of present geography, resources and environment sciences and ecology. Ecological security evaluation will efficiently promote ecological security and environmental construction in regional land use. In this thesis, the authors put forward the index system of ecological security evaluation in karst mountainous area on three aspects, the pressure of resources and eco-environment, the quality of resources and eco-environment, and the ability of environmental protection and ecological improvement. Using the evaluation method with single index, based on the case study ofDu'an Yao Autonomous County of Guangxi Zhuang Autonomous Region, the system of synthetic regionalization of ecological agricultural economy was formed, which includes three regions, south region with basic security and synthetic agricultural development, east region with critical security and agriculture, forestry, animal husbandry balanced development, mid-west and south region with ecological insecurity and compounded agriculture and forestry management. Meanwhile, for these regions, the countermeasures of sustainable agricultural development were pointed out, which provide the basis and example for ecological regulation and control of sustainable agricultural development in counties ofkarst mountainous area.

Agro-ecological engineering in China: a way towards sustainable agriculture

Sustainable development, as a “hot topic”, concerns not only economic development but also environmental protection. Agriculture, the base of other economic activities, has faced many difficulties that include over growth population, land decrease, and land degradation and so on. Therefore, how to increase the food supply, to meet the over\|growth population demands, is the main task all over the world at present, especially in the developing countries, such as China, but we also must protect agricultural environment for medium\| and long\|term development simultaneously. Hence, sustainable development in agriculture is the most important estate that we must concern. Its sustainable development determines the sustainability of other economic development to a great extent. Despite Chinese government has paid much attention to develop agricultural production and obtained great successions, there are also many shortcomings in Chinese agriculture. Therefore, China must seek new approaches for its development and environmental protection that suit local conditions and are based on local resources. Agro ecological engineering, the application of ecological engineering in agriculture, is very thriving in China in recent decades. In this paper, the ecological, economic and social benefits of agro\|ecological engineering are analyzed. The principles are discussed. The results indicated that agro\|ecological engineering can meet the farmer′s short\|, medium\| and long\|term benefits. In the meanwhile, it also concerns not only economic benefits but ecological and social benefits. Therefore, agro\|ecological engineering is a way that leads to sustainable agriculture in the future in China.

Assessing Agricultural Sustainable Development Based on the DPSIR Approach: Case Study in Jiangsu, China

According to the contemporary ecosystem approach, the linkages of human actions with their environment have to be assessed in an integrative manner. The Driver-Pressure-State-Impact-Response （DPSIR） model is applied to identify and describe processes and interactions in human-environmental systems. An example application from a research project dealing with the development of sustainable management strategies for the agriculture in Jiangsu, China, illustrates the potentials and limitations of its sustainable development. The concept and indicators of ecological integrity are used to assess the indicators in the dimensions of DPSIR between 2003 and 2006. The main drivers included population growth which caused increasing demand for food, growing environmental demands, and rapidly decreasing of land and other natural resources. The main environmental problem was water pollution. The results show that in the dimension of driver, total grain output and agricultural land productivity both increased. Labor intensive agriculture has been promoted to increase agricultural land productivity. In the dimension of pressure, on the positive side, infrastructure got greatly improved, the input level such as total power of machinery, and level of fertilizer use increased, and level of pesticides use decreased, but on the negative side, cultivated land per capita and irrigation rate decreased, natural resources keep decreased. Environmental pollution indicators such as industrial wastewater discharge and acid rain rate increased in Jiangsu Province. In the aspect of state, ecosystem state was improved, plant coverage index increased, biological abundance index increased, fertilizer productivity increased, eco-environmental quality index increased, but land degradation index also increased. In the aspect of impact, output level increased, output efficiency enhanced, farmer＇s social economic benefit improved. In the aspect of response, social support was greatly improved, input for environmental governance increased. To assess the effects of environmental governance, Jiangsu government was successful to increase compliance rate of sulfur dioxide emissions, but not so efficient in compliance rate of industrial wastewater discharge.

Research on Health Evaluation of Sustainable Regional Innovation Ecosystems Based on Improved Niche Suitability Model

While researchers have used the traditional index system–part of the niche-fitness model–to evaluate the innovation ecosystem,this index system can be seen as not being sufficiently objective,with the consequent problem that it gives equal weight to the indicators and so does not specify the important factors.To remedy this problem of insufficient objectivity,this paper seeks to improve the traditional niche-fitness model in two ways,which are based on the theory of the innovation ecosystem.First,by introducing the principal components analytic method to solve multiple mutual linear problems.Second,by constructing a new evaluation index system from the four aspects of openness,synergy,sustainability,and growth.This new evaluation index system is closer to the characteristics of the organic and evolutionary nature of the sustainable innovation ecosystem compared with the traditional index system.By using the evaluation index system,the research carries out a health assessment for the sustainable innovation ecosystems in different regions of provincial and municipal China from the two perspectives of descriptive and quantitative analyses.Through these analyses,our findings suggest that the sustainable regional innovation ecosystems in China are,on the whole,in an imbalance:there is a gradual decreasing trend from the eastern coastal areas to the central and western regions,and then the northeast regions.

青藏高原草地生态系统演化过程、可持续发展瓶颈及应对分析

青藏高原面积巨大,自然条件恶劣,生态环境脆弱,具有生态、生产和生活的三生服务功能。自20世纪80年代以来,在气候变化、人口激增、市场冲击和经营管理模式改变等多种因素影响下,青藏高原草地生产服务功能逐渐被弱化,“人-地”矛盾凸显,如何实现青藏高原草地生态系统的可持续发展成为“关系人民福祉、关乎民族未来的大计”。基于此,本文梳理了青藏高原生态系统演化历史、植被演化过程及不同历史时期人类活动及区域经济-资源发展模式特征,发现:1)在大的时空间尺度下,青藏高原植被演替的主控因子为气候变化和剧烈的地质变迁,在小的时空尺度下,导致相同地理和气候单元植被特征分异的原因是放牧强度的分异,而草地过度放牧的原因同家庭牧场的管理、草地生态价值的可评估性、人口与生产力发展适配度等关系密切。2)规模化放牧在青藏高原区域具有数千年历史,并形成了人-草-畜协同演化的互利共生关系,青藏高原草地生态系统可持续发展需要在汲取当地传统知识和文化精华的基础之上,扩大草地生产的层次性,引入或研发以生产和生态效益共赢为目的的科学技术,完善和延伸草地生产产业链,完善高原生态系统生态价值评估体系,调动牧场管理者草地健康保护的主观能动性,完成草地健康监管奖惩制度,以生产力、管理和文化为调节手段提高青藏高原区域农牧业现代化和商品化程度,实现青藏高原草地生态系统资源可持续利用发展及区域生态文明建设。

核心企业数字创新生态系统构建的内在机制——基于意义建构和资源编排视角

为探究以传统制造企业为核心的数字创新生态系统构建过程,并弥补以往主要从意义建构单一认知层面探讨问题的不足,选取潍柴动力股份有限公司为研究对象,运用纵向单案例研究方法,基于意义建构与资源编排相结合的视角,探索核心企业意义建构、资源编排与数字创新生态系统构建的内在机制。结果发现:(1)意义建构及其跨层次传递是推动数字创新生态系统构建的先决条件,意义建构的形成和转变是核心企业为匹配适应环境中技术与需求变化的结果;(2)核心企业始于领导层面的跨层次意义建构及其引发的资源编排行为,以及二者的交互和协同演进是推动数字创新生态系统构建的核心机制;(3)意义建构通过资源编排获得反馈,不断对自身认知进行迭代,最终实现从生态基础搭建到生态共享,进而发展到创新生态可持续发展。从而得到启示:核心企业数字创新生态系统构建的关键驱动因素是管理者认知,同时管理者要充分重视引导高管团队、企业及企业间形成统一认知的意义给赋行为,并充分重视资源编排行为的价值。

Agriculture green development in China: insights and advances

Reconciling the tasks of producing adequate amounts of nutritious food for the increasing global population while preserving the environment and natural ecosystems simultaneously is an enormous challenge. The concept of agriculture green development(AGD) and the necessary governmental policies were developed to address the aforementioned challenge in China and to help achieve the related global sustainable development goals. Agriculture green development emphasizes the synergy between green and development;current agriculture has to transform from the intensive farming with high inputs, high environmental impacts and low resource-use efficiency to a more sustainable agriculture, in order to ensure an adequate supply of nutritious food while delivering environmental integrity, improved economic profitability,and social equity. A research program on AGD was established by China Agricultural University with four research themes, namely: green crop production, green integrated crop-animal production, green food and industry,and green ecological environment and ecosystem services, to provide a scientific basis for future developments and to facilitate the implementation of AGD in practice. AGD requires a multistakeholder approach, fueled by innovative and interdisciplinary research. Joint actions have to be taken by governments, farmers, supply industries, consumers, educators, extension services and researchers to support AGD. This requires strong coordination and public awareness campaigns. This review presents the progress that has been made over the past 5 years and makes recommendations for more research and development, in order to better deliver agricultural green and sustainable development on national and international scales.

可持续生态学视角下生态产品价值实现的思路

生态产品价值实现是工业文明向生态文明过渡的产物,是“绿水青山就是金山银山”理念的重要实践。中国在生态产品价值实现的实践探索和理论研究中注重生态产品价值转化,但在一定程度上忽视了生态产品价值可持续实现的问题,导致生态产品价值实现在理念认知、保护修复、产业发展、部门协同、价值共享等方面出现了不可持续的趋势。可持续生态学在生态产品价值实现过程中扮演着核心角色,它不仅关注人类社会经济活动与自然生态系统之间的矛盾,而且致力于探索两者协调发展的可行路径。该研究基于可持续生态学的发展度-协调度-持续度的三维评价体系,采用文本分析与案例研究相结合的方法,以可持续发展理论为指导,结合社会-经济-自然复合生态系统的内在逻辑,综合考虑质量、动力和公平三个关键要素,构建了生态产品价值可持续实现的理论分析框架。该理论分析框架着重关注生态产品价值实现的全过程,特别遵循三个基本原则:在前端,与2030年联合国可持续发展目标(SDGs)紧密对接,确保生态产品价值实现与全球可持续发展议程同步;在中端,尊重地域差异性,将地方实践与生态产品价值的转化相结合;在末端,实现生态产品价值的均等共享,与社会持续公平系统相衔接,确保代际公平。基于生态产品价值可持续实现的理论分析框架,提出中国生态产品价值可持续实现的推进思路,即深挖动力要素以支撑健康发展、注重质量元素以调动多方协调、考虑公平元素以确保代际均衡,为促进生态产品价值可持续实现,促进生态文明建设,实现人与自然和谐共生的现代化提供科学依据。

水稻产业政策对农业可持续发展的作用机制分析

水稻作为我国的主要粮食作物之一,其产业的发展对于农业可持续发展具有重要意义。通过深入分析农业可持续发展的核心理念与目标,探究水稻产业政策在推动农业可持续发展方面的积极作用,包括促进资源优化配置、提高农业生产效率、增强农业抗风险能力等方面,并结合实际情况,给出了优化水稻产业政策的策略建议,以期为水稻产业的健康发展及农业可持续发展的推进提供理论支持和实践指导。

乡村振兴战略下农牧融合生态循环农业的模式探索——以甘肃省民勤县为例

以甘肃省民勤县为例,简述构建农牧融合生态循环农业模式意义的基础上,介绍了构建农牧融合生态循环农业模式的优势,分析了发展农牧融合生态循环农业模式面临的问题,提出民勤县可通过“种植-养殖-肥料”三环可循环生态农业模式,实现生态农业的可持续稳定发展。

保护农业生物多样性建设集约化生态田园

农业集约化引发的农业生物多样性下降及农田系统生态功能失衡退化是农业绿色高质量可持续发展的重要威胁。破解集约化农田系统所存在的问题已成为国内外研究的热点,更是我国农业现代化能否如期实现的关键。本文从我国农业现代化的任务出发,结合农业生态科技发展趋势,从集约化农田系统生态功能减弱、生物多样性维持农田生态系统功能和集约化农田生物多样性保护意识欠缺三个方面分析了集约化农田生物多样性保护现状及存在的问题。针对目前集约化农田系统存在的不可持续的问题,提出了四点工作建议,旨在打造新阶段具有中国特色的集约化生态田园建设范式,向世界提供基于农业生物多样性保护的集约化农业可持续绿色发展的中国智慧和中国方案。

南疆县域生态-经济协调性评估及可持续发展分区

基于当量因子法估算2000—2020年南疆地区生态系统服务价值(Ecosystem services value,ESV),应用生态-经济协调度(Ecological-economic harmony,EEH)模型从县域尺度分析南疆地区生态-经济发展协调水平及其空间分布特征,最后通过生态贡献率模型揭示各县域ESV变化主要贡献因子,并结合其ESV损益状况和生态-经济协调水平进行差异化的可持续发展分区。结果表明:(1)2000—2020年南疆地区ESV整体呈先上升后下降趋势,总量缩减167.99×10^(8)元;草地和水体的ESV占总量的70%以上,单项ESV调节服务(57.1%)>支持服务(27.5%)>文化服务(10.0%)>供给服务(5.4%);草地和农田是多数ESV实现增益(减损)县域的主导地类。(2)2000—2020年南疆地区37个县域ESV均有不同程度减损,ESV实现增益县域共计9个;约80%的县域为生态-经济初始恶化区,其余县域表现为生态-经济协调稳定状态。(3)南疆地区整体呈轻度生态-经济不协调状态,少数生态-经济协调稳定县域主要分布于南疆中、东部地区。综合分析将南疆县域划分为林草生态-经济不可持续区、农田生态-经济不可持续区、水体生态-经济不可持续区、林草生态-经济持续稳定区和农田生态-经济持续稳定区5种类型。