林业经济问题
林業經濟問題
임업경제문제
Problems of Forestry Economics
2012年
3期
243~248
,共null页
退耕还林 农户生态承载力 吴起县
退耕還林 農戶生態承載力 吳起縣
퇴경환림 농호생태승재력 오기현
grain for green; farmers' ecological carrying capacity; Wuqi prefecture
运用生态足迹的方法从供给的角度测算了退耕还林还草工程对陕西吴起县农户户均生态承载力的影响,测算结果表明:退耕还林之前吴起县户均生态承载力为2.57 hm2,退耕之后户均生态承载力为3.62 hm2,上升了1.05 hm2;由耕地、林地、草地组成的户均生态承载力供给结构发生了变化,由退耕还林前的27.01∶1.01∶1变为退耕还林后的4.82∶13.93∶1,说明退耕还林工程对吴起生态经济的容纳能力有所增加,生态供给结构趋于优化。对耕地、林地、草地因子进行生态承载力敏感性分析结果表明:林地因子是影响退耕还林之后户均生态承载力的主要因子。最后,对进一步提升吴起县户均生态承载力的方法进行了探索。
運用生態足跡的方法從供給的角度測算瞭退耕還林還草工程對陝西吳起縣農戶戶均生態承載力的影響,測算結果錶明:退耕還林之前吳起縣戶均生態承載力為2.57 hm2,退耕之後戶均生態承載力為3.62 hm2,上升瞭1.05 hm2;由耕地、林地、草地組成的戶均生態承載力供給結構髮生瞭變化,由退耕還林前的27.01∶1.01∶1變為退耕還林後的4.82∶13.93∶1,說明退耕還林工程對吳起生態經濟的容納能力有所增加,生態供給結構趨于優化。對耕地、林地、草地因子進行生態承載力敏感性分析結果錶明:林地因子是影響退耕還林之後戶均生態承載力的主要因子。最後,對進一步提升吳起縣戶均生態承載力的方法進行瞭探索。
운용생태족적적방법종공급적각도측산료퇴경환림환초공정대협서오기현농호호균생태승재력적영향,측산결과표명:퇴경환림지전오기현호균생태승재력위2.57 hm2,퇴경지후호균생태승재력위3.62 hm2,상승료1.05 hm2;유경지、임지、초지조성적호균생태승재력공급결구발생료변화,유퇴경환림전적27.01∶1.01∶1변위퇴경환림후적4.82∶13.93∶1,설명퇴경환림공정대오기생태경제적용납능력유소증가,생태공급결구추우우화。대경지、임지、초지인자진행생태승재력민감성분석결과표명:임지인자시영향퇴경환림지후호균생태승재력적주요인자。최후,대진일보제승오기현호균생태승재력적방법진행료탐색。
The article analyzed the impact of the China's Grain for Green Project operated in the Wuqi prefecture on the regional farmer's ecological carrying capacity. The result which was calculated from the angle of supply by the way of ecological footprint indicated the farmers ecological carrying capacity was increased from 2.57 hm^2 to 3.62 hm^2 and the increment was 1.05 hm^2. In addition, the proportion about the structure of the farmers' ecological carrying capacity which was constituted by farmland, forestland and grassland was changed from 27.01: 1.01: 1 to 4. 82: 13.93: 1. From which we can see the capacity of the Wuqi prefecture's ecological economy was increased and the structure was opti- mized. Finally, the sensitivity analysis about the farmland factor, forestland factor and grassland factor explained the forestland factor was the major factor which affected the farmers' ecological carrying capacity. And on that basis, it was significance to searching the methods to improve the farmers' ecological carrying capacity in Wuqi prefecture.