物质良性循环

根据我国生态农业试点的成功经验，分析了生态农业区N循环的特征，从物质良性循环角度，阐明了生态农业的优越性。

Based on the successful pilot tests of eco-agriculture in China , characters of N circulation in eco-agricultural areas are analysed , and the advantage of eco-agriculture is discussed from the view of its improved material circulation .

从根本上消除草浆生产黑液的污染问题，建立起造纸工业和农业之间物质良性循环新模式。

The environmental pollution of black liquor would be solved and a new pattern of virtuous cycle was set up between paper industry and farming .

沼气配套技术把养殖业、种植业等科学技术合理地结合在一起，在畜牧业生态系统内做到能量多级利用，物质良性循环。

Marsh gas to encase in technology reasonably combine cultivation 、 lanting and other science technology together which can be used multi-level energy using and material virtuous circle in the ecological system .

综合技术措施衍生的高产高效农业依托于技术，保持高产高效发展势头，技术上依赖于能量和物质的良性循环。

A high yield and benefit agriculture , coming out of integrated technical measures , is closely technology-dependent to keep developing a high yield and benefit agriculture technologically rellies on a fine cycling of energy and materials .

二是促进城市和农村之间物质能量的良性循环；

Constructing a favorable cycle of the materials arid energy between urban and rural areas ;

生态村建设面积狭小、辐射力度不够，只能实现局部的物质能量的良性循环，对于改善大的生态环境一时难以奏效。

Since the ecosystem village is narrow in area and radiation strength is not enough , it can only realize well circulation of partial material energy , for the big ecosystem environment it has little effect .

生态旅游产品主要指以生态旅游资源为旅游吸引物，按生态学的目标和要求，实现环境优化组合、物质能量的良性循环、经济与社会协调发展的有较高观赏价值的旅游产品。

Eco-tourism products mainly refers to the tourist attraction of Eco-tourism resources , Ecological objectives and requirements , and the environment to optimize the combination of material and energy virtuous circle , coordinated Economic and social development of high ornamental value of tourism products .