Optimized eco-productive paradigm for mountain-basin system in Huailai County, Hebei Province
怀来山盆系统优化生态-生产范式

The mountain-basin system(MBS) is composed of two subsystems,altitudinal belt of montane vegetation and cycles of horizontal vegetative belt in basin.Huailai MBS,Hebei Province lying in farming-pastoral zone of North China,is one of the typical MBS physiognomy.It was chosen as our case study area to establish an optimized eco-productive paradigm.In the hope of realizing ecological restoration and agriculture sustainable development,a "Intermontane basin-Low mountain and hill-Mid-mountain" eco-productive paradigm of Huailai MBS was established through the evaluation and analysis on the local eco-economic situation,the agricultural structure adjusting and optimized landuse structure.Huailai MBS contains three "circles": intermontane basin,low mountain and hill,mid-mountain,including five functional belts,viz.Guanting Reservoir,protective belt surrounding reservoir,high efficient agri-economic belt in river valley plain,raising livestock in sty and artificial woods(fruit tree)-shrub-grass belt in low mountain and hill,and forest-shrub-grass ecological conservation belt in mid-mountain.