Construction and Evaluation on Models of Typical Eco-agriculture in Yuanmou Dry Hot Valley of Yunnan, China

摘要

The arid and hot valley of Yuanmou is situated in Jinsha River where has fragile ecological environment and the contradictory of water and heat is outstanding. Its economy is backward, but the area owns rich natural resources. In order to use it and develop local economy, industrialization of the efficient eco-agriculture should be advocated as the main direction of the future economic development, and the most effective development models of eco-agriculture should be adjusted according to the local condition. Therefore, five kinds of development models on efficient eco-agriculture were put forward: ① the model of stereoscopic plantation and breeding can be descried as" arbor- bush- grass- livestock-poultry (M_1)" ② the model of material cycle can be described as" fruit- crop (grass)- poultry- fishery- firedamp- earthworm - edibility germ (M_2)." ③ the model of soil and water conservation can be described as" forest- grass-livestock - engineering.(M_3)" ④ the model of famous special local type can be described as" fruit- herb- vegetable - pig- firedamp- edibility germ (M_4)" ⑤ the model of comprehensive development can be described as" fruit- vegetable - flower- processing- ecological travel. (M_5)". At the same time, this article sums up the key techniques of the model construction and evaluation of the structures, the functions and the comprehensive benefits of eco-agricultural models.