%0 Journal Article
%T An agricultural tri-cyclic mode for Yangtze River Delta plain and water regions<br>长三角平原水网区城郊循环农业圈层模式研究
%A GENG Chen-Guang
%A DUAN Jing-Jing
%A WANG Can
%A ZHANG Ming-Kui
%A SHI Jia-Chun
%A LI Xun
%A DUAN Zeng-Qiang
%A <br>耿晨光
%A 段婧婧
%A 王 灿
%A 章明奎
%A 施加春
%A 李 汛
%A 段增强
%J 中国生态农业学报
%D 2012
%I 
%X Based on the concept of recycling economy and local conditions, an agricultural tri-cyclic mode was built for the Yangtze River Delta plain and water regions. The mode integratively coordinated agricultural, environmental and social benefits. After systematic analysis of the present agricultural conditions and design of the mode, the mode was updated to an advanced stage. The study introduced the main technical parameters and changes required for the mode structure design. The tri-cyclic mode was a recycling agricultural mode consisted of three interconnected circle-like layers with the urban as the center. The three circle-like layers were layers of urban-rural connection area, plantation-cultivation-manufactures and scale agriculture. In the urban-rural connections layer, the main technologies were rotation technology of rice in paddy field and melon/vegetable in dry land, and pollution-free cultivation technology of rice, melon and vegetable. In the second layer, sericulture, nursery, cash forest and aquatic-animal husbandry formed the circulation mode of plantation-cultivation-manufactures. In the third layer, where was far from the city, high quality-high yield grain, oil and vegetable production was the main industries. Based on the study, the agricultural tri-cyclic mode showed great prospects for the Yangtze River Delta plain and water regions. It was estimated that more than 3 billion tons of sewage in the rural areas of the Yangtze River Delta region were absorbable by garden land-paddy wetland systems in a year, which greatly alleviated environmental load of water in the region. The mode assembled and integrated techniques of land decentralization of animal manure, agro-straw utilization, earthworm compost, producing obvious economic, environmental and social benefits. The mode performance was perfect, which was sufficient evidence of academic and practical application. The mode well performance was also of significance for its application and popularization.
%K Yangtze River Delta
%K Circular agriculture
%K Tri-cyclic mode
%K Urban-rural environment
%K Agricultural recycling economy<br>长江三角洲
%K 循环农业
%K 圈层发展模式
%K 城乡环境
%K 农业循环经济
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=1A8B5357F0EF07B8&jid=AB3ABF502E2E1FF39F0E3B80164C9031&aid=F6F80FAD71E363AE178F51F1DC861C0A&yid=99E9153A83D4CB11&vid=A04140E723CB732E&iid=DF92D298D3FF1E6E&sid=7A7A8B1000B9FF84&eid=CFC2B32D03D9F610&journal_id=1671-3990&journal_name=中国生态农业学报&referenced_num=0&reference_num=0