民权农区林业与农牧业有机质流动的研究

建国后 ,我国农区林业迅速崛起 ,成为农业生态系统不可缺少的组成部分。关于农区林业的经济、生态和社会效益研究报告很多[1～ 3 ] ,尤其是农区生态系统农林牧之间的相互关系 ,但多为定性描述。河南省民权县是黄淮海地区典型的平原农业县 ,本文将民权县作为一个系统 ,定量分析农林牧之间的相互关系。1　材料与方法1.1　民权县基本概况民权县位于豫东平原 ,为黄河冲积扇组成 ,人口 71 4万人 ,耕地 8 0 13×10 4 ｈａ,1731个自然村。故黄河屡次改道经过民权 ,使大片土地沦为沙荒和盐碱。光、温、水、热资源充沛 ,但旱、涝、风、沙、碱等自然灾…

Study on the Organic Material Flow among Forestry, Livestock and Agriculture in Minquan County of Hunan Province

The agriculture, forestry and livestock in Minquan County of Henan province were integrated as a whole eco - system in present study. By means of systematic sampling and random sampling, interview with farmers and investigation in overall and in sites, the relationship among forestry, agriculture and livestock in Minquan County was analysed. Fuelwood provided 2. 6944 months of family fuel energy with 86.4 kg of average fuelwood consumption per capital and 6. 1673×107kg in total. The foliage from the trees was amounted to 1. 385×107kg, up to 21.95% of the total coarse foliage. The biomass of organic fertilizer from the trees was amounted to 1. 761×107kg, up to 9.34% of the total. The results indicate that forestry in plain area is essential not only for the structure of plain agriculture system but also for the function of the ecosystem.