摘要
根据元谋干热河谷生态环境脆弱、水分短缺、干热资源充足等特点,按照生态学、生态经济学、系统科学的原理设计规划干热河谷退化坡地立体种养复合生态农业模式,即“乔+灌+草+羊+沼气+蚯蚓+鸡”模式。经多年实践证明,所建的典型优化模式综合效益明显,其中:系统净产值为4.22万元/a.hm2,成本产值率164%,能量转化率为960%,饲料转化率为264.92%,土壤理化形状明显改善,土壤蓄水量增加106 t/hm2,使系统得以可持续发展,该模式在干热河谷有广泛的推广前景。
The arid hot valleys in Yuanmou county, Yunnan is characterized by a fragile ecological environment and water shortage but abundant light and heat resources. An eco - agricultural model of stereoscopic plantation and breeding was designed based on the principles of ecology, ecological economics and system science, which integrates ＂arbor ＋ bush ＋ grass ＋ goat ＋ biogas ＋ earthworm ＋ chicken＂ into one comprehensive eco-agricultural system. In years＇ practice this system has yielded significant benefits, with a net production value of 44,220 yuan/a, ha, a cost -output ratio of 164%, an energy conversion rate of 960% , a forage conversion rate of 264. 92% and an increase in soil water content by 106 t/ha, thus making the development of the system more sustainable.
出处
《西南农业大学学报（社会科学版）》
2005年第3期1-4,共4页
Journal of Southwest Agricultural University:Social Science Edition
基金
国家科技部十五攻关项目"干热河谷生态恢复与示范"
编号2001BA606A-07
关键词
模式
立体种养
退化坡地
干热河谷
model
stereoscopic plantation and breeding
degraded slope
arid hot valley
