【摘要】 在分析温宿县1999—2003年农业生态系统的农业种群结构、产业结构和空间结构的基础上,对本区的农业生态经济系统进行了能流分析。结果显示,在能流方面,本区农田生态系统的能量产出水平和效率都处于较低水平,农田肥料投入单一,主要以化肥为主。分析表明,造成本区农业生态经济系统功能低下的主要原因是由于产业结构不合理、种植业比重过大、生产力水平低下,因而调整和优化产业结构,提高农业生态系统的经济效益势在必行。更多还原

【Abstract】 Based on analyzing the agricultural species structure,industrial structure and spatial structure of agricultural ecosystem from 1999 to 2003 in Wensu Country,the energy flow is studied.The results reveal the following facts in the Wensu Country.As to the energy flow,the energy production in cropland ecologic system is low-level and inefficient,and the structure of manure used is not diverse,fertilizer is the main manure.The ratio of input-output is not high in agriculture eco-economy system,which means that agriculture production is still in the phase of farm crops production in the area.There are many reasons to cause the agriculture eco-economy system lower function,such as the reasonless of industry structure,excessive proportion of crop production,the lowness of productivity level.As a result,optimization of industrial structure and increase of economic benefits are imperative under the situation.更多还原