关键词: 餐厨垃圾, 餐厨垃圾, 发酵, 生物饲料, 猪, 生产性能, 粪便微生物

Abstract: Taking administrative villages as the assessment unit to analyze the land ecological status and changes in the rural area of Xinzheng, we aims to provide a basis for rational and scientific land use. Based on the platform of GIS and RS, we comprehensively assessed land ecological status in Xinzheng’s two phases rural area by using remote sensing image, statistical report and field survey data, and the multi- factor comprehensive evaluation method. The results showed that: in 2011 and 2014, Xinzheng’s rural land ecological condition was mainly the second level and the first level, respectively, accounting for 58.29% and 43.45% of the evaluation area; in terms of location distribution, the rural land ecological condition of the southern mountainous area was the best, that of the central plain was the secondary, that of the north and the Zhengzhou border area was the worst, presented a three-stage ladder type distribution; the dynamic analysis showed that: during 2011-2014, the village area with a better trend of land ecological situation accounted for 32.61% of the evaluation area, these villages mainly distributed in the southern and eastern regions of Xinzheng; the village area with a worse trend of land ecological situation accounted for 21.14% of the evaluation area, mainly distributed in the central and northern regions of Xinzheng. The distribution and change of land ecological status in the rural areas of Xinzheng lays a foundation for land ecology protection and land rational use.