关键词: 西藏农田, 西藏农田, 氮肥, 有机碳, 酶活性

Abstract: In order to well understand the varieties and quantities of the waste from crop farming and provide reference for the comprehensive utilization of crops straw, the crop straw resource of Beijing was detailed surveyed, the crop straw resource and utilization status was obtained, and characteristics of its distribution and utilization status were analyzed according to the economic development status. The results showed that main crop straw resource was corn and wheat, accounting for 94.9% in the whole province. The utilization of crop straw was main return to field. In 2012, there are more than 10% straw resources were remaining, apart from the amount deducted for the competitive usages such as cooking and heating of rural residents, return to field and used as forage. This paper explored the utilization value and existent problems of comprehensive utilization of crop straw, put forward some suggestions and countermeasures for the development of comprehensive utilization technique of crop straw in Beijing suburbs.