Ecological purchase means that governments purchase ecological products and help farmers to timely sell their product so that farmers can make money and get rid of poverty.

Firstly,the author tells us what is ecological product.

The ecological value of the Qinghai-Tibet Plateau forests and grasslands is a kind of ecological products of invisible labor including human abstract labor.

To realize market values of ecological resources in the West Development, Two kinds of work must be done: 1 Have a clear idea of the characte ristics of resources property, including its value, its substance and value char acteristics of invisible ecological products.

Discussion on the Value Compensation of Forest Eco-products

Study on Eco-Industrial Chain Growing Mechanism;

Study on eco-industrial chain (net) and industry scale in mining area

Based on the theory of "keystone species" in ecology,this paper puts forward a concept of keystone industry in pursuit of setting up an eco-industrial chain for the projected industrial park based on the coking industry in Xiaoyi City of Shanxi Province,where mineral resources abound such as coal and aluminum.