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- On Thinking Way of Chinese Antique Agricultural Ecology Security Construction 我国古代农业生态安全建设思想略论
- agricultural ecological security 农业生态安全
- agricultural ecology security 农业生态安全
- Discussion on the agricultural ecological security and its management countermeasures 农业生态安全及其生态管理对策探讨
- Change of Soil Nutrients in Cultivated Horizon and its Impression on Agricultural Ecological Security in Liaocheng City of Shandong Province 山东省聊城市土壤耕层养分变化及其对农业生态安全影响
- We will consider all of the systems listed in our examination of agricultural ecology. 我们考虑把所有的系统列入我们农业生态学的研究范畴。
- This regulations is suitable for different dryly agricultural ecology area of the big pellet thinly plants crop and watermelon .pumpkin and so on. 本规程适用于不同旱作农业生态区的大颗粒稀植粮食作物和西瓜、南瓜等经济作物。
- This regulations is suitable for different dryly agricultural ecology area of the big pellet thinly plants crop and watermelon. pumpkin and so on. 本规程适用于不同旱作农业生态区的大颗粒稀植粮食作物和西瓜、瓜等经济作物。
- The healthy city wetland ecosystem,is the city ecology security system important constituent and the city social economy sustainable development important foundation. 健康的城市湿地生态系统,是城市生态安全体系的重要组成部分和城市社会经济可持续发展的重要基础。
- According to the characteristics of plant invasion, the cause of invasion and the influence on ecology security are systematically analyzed. And the corresponding preventive measures are proposed. 根据绿色入侵的特点和特性,系统地阐述绿色入侵的侵入原因及其对生态安全所带来的影响,并提出相应防治对策。
- National Aeronautics and Space Administration's main researches include agricultural biotechnology, sustainable management of natural resources, agricultural ecology, agricultural science. 资源描述:法国国家农业研究所主要的研究方向包括农业生物技术、自然资源的可持续发展管理、农业生态学、农业科学等方面。
- Based on clarifying of land ecological security and taking Hebei Province as the case, this article discusses the methods of security evaluations of land ecology. 以河北省为例,在界定土地生态安全概念的基础上,探讨了土地生态安全评价的方法。
- Agricultural ecology environment 农业生态环境
- Landscape ecology security pattern 景观生态安全格局
- Key words: Guizhou Province; karst; arid hillside farmland; terracing; agricultural ecological environment. 范厚明,农艺师,贵州省毕节市德沟,毕节地区农业科学研究所,551700
- Results Landscape scale is the right scale to assess regional ecological Security. 结果景观尺度是区域生态安全评价的适宜尺度。
- The different features of geological and agriculture ecology en vironment de cided obstructive factors and bring under control countermove of low yield field . 不同的地质环境和农业生态特征决定低产田的障碍因素和治理对策。
- Since the opening of the agricultural ecological park, the number of tourists every day has surpassed 10 thousand. 农业生态园开园以来,每天的游客都人数过万。
- The status quo of China's forestry indicates that forestry development does not meet the requirement for maintaining ecological security. 林业现状说明,林业发展与维护生态安全的要求极不适应。
- And then the method of ecological security was applied to the case of Kaifeng city and some suggestions on ecological security construction were put forward. 在此基础上,以开封市为研究对象,对开封旅游的生态安全进行了定量的研究,提出了开封市旅游生态安全建设的若干建议。