论农业现代化与农业持续化的关系

世界上各种思潮时起时落,可持续发展已成为当前的热点。从原始农业转变为传统农业,再转变为现代农业,这是农业发展的历史规律。农业现代化与持续化并不是对立或替代而是相互补充的关系。中国农业的伟大目标是在二十一世纪实现农业现代化,走集约持续农业的道路。

浅析农业现代化与农业持续化的关系

世界上各种思潮时起时落,可持续发展已成为当前的热点。从原始农业转变为传统农业,再转变为现代农业,这是农业发展的历史规律。农业现代化与持续化并不是对立或替代而是相互补充的关系。中国农业的伟大目标是在二十一世纪实现农业现代化,走集约持续农业的道路。

浅析农业现代化与农业持续化的关系

世界上各种思潮时起时落,促进和谐的可持续发展已成为当前的热点。从原始农业转变为传统农业,再转变为现代农业,这是农业发展的历史规律。农业现代化与持续化并不是对立或替代而是相互补充的关系。

玉米机械化种植模式对农业可持续发展的影响

随着新时期社会发展水平的不断提升,农业可持续发展已经成为多方关注的重点,是直接影响民生稳定性的重要项目。玉米种植是我国农业的重要组成部分,玉米机械化种植有利于促进农业可持续发展。论述了农业可持续化发展和创新的重要性,探讨了可持续化农业下的玉米机械化种植模式,分析了玉米机械化种植模式对农业可持续发展产生的积极影响,为现代农业体系的发展和创新提供参考。

提升农业机械化水平促进农业可持续发展

介绍了农业机械化水平对促进农业可持续发展的重要意义。阐述了当前我国农业机械化发展现状及存在的区域发展不均衡、生产效率较低、缺少相应政策扶持、创新力不足等问题,提出加强专业技术型人才引进、提高自主创新能力、加大资金扶持,建立健全的政府管理机制等解决方案。

Impacts of climate change on agricultural water resources and adaptation on the North China Plain

Climate change is having a considerable impact on the availability of water resources for agricultural production on the North China Plain （NCP）, where the shortage of water is currently disturbing the stability and sustainability of agricultural production with respect to the drying tendency since the 1950s. However, although potential evapotranspiration （ET） has shown a decreasing trend under climate change, actual ET has slightly increased with an acceleration in hydrological cycling. Global climate model （GCM） ensemble projections predict that by the 2050s, the increased crop water demand and intensified ET resulting from global warming will reduce water resources surplus （Precipitation-ET） about 4%-24% and increase significantly the irrigation water demand in crop growth periods. This study assesses possible mitigation and adaptation measures for enabling agricultural sustainability. It is revealed that reducing the sowing area of winter wheat （3.0%-15.9%） in water-limited basins, together with improvement in crop water-use efficiency would effectively mitigate water shortages and intensify the resilience of agricultural systems to climate change.

Physiological and Phytosanitary Potentials of Coriander and Radish Seeds

Information on seed vigor of the vegetable crops is always important and necessary due to the increasing demand of high quality seeds for sowing and high-value commercial. The cultivation of these species, conducted intensively, should be established with seed high potential physiological and health for the development of a more productive and sustainable agriculture. The present study was conducted to evaluate the potential physiological of seed lots of radish and coriander. The experiment was conducted at the laboratory of seed analysis and greenhouse of the plant science department of the Federal University of Pelotas in South Brazil. Four radish seed lots, cultivar ＂Saxa＂, and four coriander seed lots, cultivar ＂Verdito＂ were used. Germination seed test, first count of germination, accelerated aging test, electrical conductivity and seedling emergence were used to evaluate the physiological quality of the lots. The experimental design was completely randomized design with five replications. Means were compared by Tukey test. The accelerated aging test was the most efficient test in assessing the physiological quality for both lots of radish seeds and coriander and this test provide coherent results with seedlings emergence.

Impacts of Coffee Production in Agroforestry System for Sustainable Development

This study estimates the environmental and socioeconomic impacts of coffee production in the agroforestry system in the settlements of farmers located in the West of the state of Silo Paulo, Brazil, in the region known as Pontal of Paranapanema, aiming at the development of programs to support the growth of production sustainable coffee and programs to protect the coffee activity before the possible global climate change. The settlements are located in areas with sandy soils and highly degraded by human action Moreover, the region is considered marginal for the production of coffee, because it is subject to periods of high temperatures, prolonged drought and frost risk, which hinders the sustainability of farms. The environmental and socioeconomic impacts of agroforestry are analyzed through Ambitec-agro system, consisting of a set of indicators aimed at ex-post evaluation of the contribution of technological innovation to environmental, social and economic development of an agricultural activity. The system Ambitec involves： （1） general data collection about the technology; （2） application of questionnaires with adopters selected and insertion of data on impact indicators spreadsheets via platform MS-Excel and to obtain quantitative results and impacts partial indexes and aggregates the impact of technology selected; （3） analysis and interpretation of indices obtained, which vary between -15 and 15. The results indicate that agroforestry management can contribute to： （1） maintaining or increasing the sustainability of traditional coffee-growing regions in the case of sudden climate change; （2） the expansion of the coffee regions now considered unsuitable for the cultivation of coffee; （3） for sustainable regional development.

Challenges and Countermeasures for the Sustainable Development of Nationally Important Agricultural Heritage Systems in China

In 2012 the Ministry of Agriculture of China launched a project exploring Nationaly Important Agricultural Heritage Systems （China-NIAHS）. Through two rounds of applications and selection in 2012 and 2013, 39 traditional agricultural systems were selected and designated as China-NIAHS, including 19 forestry systems, 14 planting systems, four agricultural complex systems and two other systems. From a system origin perspective there were 24 agricultural systems, some dating back 1000 years. Twenty heritage systems are located in areas inhabited by ethnic minorities. Agricultural heritage systems face general challenges, such as ecosystem degradation and destruction, loss and abandonment of traditional agricultural technologies and landscapes, lagging agriculture scale and industrialization, and limited farmer beneift-sharing and incentives. Compared to other types of heritage, the conservation and development of agricultural heritage systems is more complex and dififcult. In order to achieve sustainable development of agricultural heritage systems, the government should play a leading role and improve ifnancial support functions. Local people should also explore market-oriented approaches and adaptive management methods on protection and development of NIAHS. Multi-participation and beneift-sharing mechanisms should be established and basic research needs to be strengthened.

Analyzing Environmental Stress Counter-measures in Agricultural Heritage Sites in China

In recent years, with climate change, many agricultural systems are facing severe environmental stress, which are seriously threatening the food security and sustainable development of agricultural system. Although mainstream agro-system can effectively reduce the adverse agro-production effect rapidly by using modern technology, but many of them bring serious ecological crisis at the same time. For the sustainable development of agro-systems, the stress mitigation options must give full consideration to ecological protection. The Globally Important Agricultural Heritage Systems （GIAHS） sites, relying on its unique land use, water conservancy facilities, traditional crops, etc., form unique production system creating a better match with local natural conditions. Based on disaster mitigation system theory and practice, this paper analyzes environmental stress counter-measures of several GIAHS sites in China. The water requirement of milet, a drought-tolerant crop in Aohan Dryland Farming System （recognized as a GIAHS pilot site in 2012）, has a better match with local water conditions. By reducing vulnerability of crops, agriculture survived healthily in semi-arid regions. Honghe Hani Rice Terraces System （recognized as a GIAHS pilot site in 2010）, relying on the unique land and water use patterns, has successfully reshape disaster inducing environment, and effectively reduce the risk/effects of droughts. Besides, due to the high price, rich crop diversity and variety of income channel, the Agricultural Heritage sites can ensure the economic income and agro-system health when facing environmental stress. Stress counter-measures of traditional agricultural systems make full use of the regulation and spontaneity ability of the natural system, which is an important way to achieve sustainable development of ecological agriculture.

Sustainable or Not?Tourism Development in Agricultural Heritage Sites

Tourism is often considered as one of the dynamic conservation and adaptive management approaches in Agricultural Heritage Sites.It has been over 15 years since the GIAHS programme was initiated in China,and tourism developed quickly in the Agricultural Heritage Sites,to some extent because many researchers consider tourism as a significant engine of the local economy.However,this is contrary to the original intention of agricultural heritage tourism as it was proposed in the first place.Apparently,there are some overt problems during the tourism development process,which are mainly as follows:Some threats to Agricultural Heritage Systems are ubiquitous;The tourism development mode in Agricultural Heritage Sites is questionable;Community involvement is difficult to implement;And the negative environmental impacts are easy to overlook.Under the context of global development,the UNWTO sustainable tourism criteria provide some guidance for agricultural heritage tourism.Based on the Global Sustainable Tourism Criteria,combined with previous survey experiences and related researches,this paper analyzes the tourism sustainability of all the 15 GIAHS sites in China,and explores the current sustainable tourism development level.On this basis,an agricultural heritage sustainable tourism development framework was built in an attempt to find the road to sustainability for agricultural heritage tourism.The framework in the global and local contexts is trying to connect all the important elements related to agricultural heritage tourism according to the UNWTO sustainable tourism criteria.

Responding to common questions on the conservation of agricultural heritage systems in China

Although the urgency of their conservation has been recognized, Globally Important Agricultural Heritage Systems(GIAHS) designated by the Food and Agriculture Organization(FAO) since 2002 and China Nationally Important Agricultural Heritage Systems(ChinaNIAHS) certified by the Ministry of Agriculture(MOA) of China since 2012 are faced with questions as to why to conserve them, what is to be conserved, who should conserve them, and how? This paper attempts to clarify and respond to such questions focusing on the conservation of agricultural heritage systems in China based on a review of both theoretical and practical progress. Agricultural heritage systems exhibit a multitude of values for sustainable and equitable development and therefore should be conserved for both present and future generations. Unlike most conventional heritages, the conservation of agricultural heritage systems is a complex, systematic "engineering" in which both physical and biological components and associated socio-cultural processes should be conserved in a dynamic way. Farmers and heritage sites must benefit from the continuance of traditional agricultural production under the premise of ecological functions being sustained and traditional culture being inherited. For a more effective conservation, a multi- stakeholder process should be established involving governments at different levels, multi-disciplinary scientists, communities and farmers, and business enterprises as well as social organizations. As has been demonstrated, the conservation of agricultural heritage systems aims to promote the regional sustainable development, to improve the livelihood, food security and well-being of farm people, and to provide references for the development of modern agriculture in China.