Meeting the challenges of the degradation of the environment , the shortage of resources and the difficulties to dispose the huge amount of wastes , many researches have been done on design for disassembly and recycling 摘要环境恶化、资源贫乏和大量废弃物难以处理的矛盾使得面向拆卸与回收的设计成为近年来设计制造领域研究的一个热点。
The consequences of it , everyone can see : overall temperature rises , air pollution , resources in water are poor , decreases in animals and plants , etc . all this illustrate the necessity of the nearness of the :全球性温度升高空气污染淡水资源贫乏动植物种类大幅度减少等等。所有这一切无一不诉说着天地神人四方浑然一体相互依偎的必要以及相互背离的不可取。
The paper consists of five sections : ( 1 ) introduction ; ( 2 ) the current situation , advantages and disadvantages of gaoqiao region ' s agricultural economy development ; ( 3 ) the leading industry of gaoqiao region ' s agricultural economy development : grass - animal industry ; ( 4 ) the strategy choice for grass - animal ecological agriculture pattern of gaoqiao region ; ( 5 ) the guarantee measures of gaoqiao region ' s grass - animal ecological agriculture pattern 高桥试区农业经济发展的劣势有： ( 1 )水土流失严重，土地瘠薄，生态环境恶劣； ( 2 )水资源贫乏，气候干旱，极大限制了农作物的生长潜力； ( 3 )文化教育事业落后，科技人才奇缺，群众文化水平低； ( 4 )经济基础薄弱，农业投入严重不足； ( 5 )交通不便，信息闭塞，市场狭小，商品经济落后； ( 6 )产业结构单一，小生产与大市场相悖。
The paper deals with the main problems of the land resource in sichuan province : both the predominant land form types and the high quality land types make up little share ; not only the photo - temperature productivity but also the land potential productivity need raising ; the quantity of cultivated land , forest land and grazing land averaged to great population is lacking , which indicates that the contradiction between man and land is outstanding ; on the one hand the reserved land resource suitable for cultivation is insufficient , on the other hand the land difficult to cultivate accounts for great share ; the level of land exploitation and utilization is low and the land productivity develops slowly 四川土地资源的主要问题是优势地貌类型占有量少；优质地类比重不大、光温潜力和土地生产潜力的发挥不够；人多地少，人均耕地、林地和牧草地不足，各地类人均占有量极低，人地矛盾十分突出；宜农耕地后备资源贫乏，难利用土地比重大；土地开发利用程度低，土地生产力水平发挥不够。
This paper introduced the resources of medicinal terrestrial vertebrates in longdong area of gansu province . adopting man raising of medicinal terrestrial vertebrates instead of capturing those wild animals for obtaining the greatest economic benefit should be the development orientation 介绍了甘肃陇东地区药用陆生脊椎动物的资源概况,根据目前资源贫乏的情况,认为采用人工饲养繁殖逐步替代野外捕杀,用人工繁养的动物代替猎杀野生动物取得最大经济效益是合理利用药用动物资源的方向。
