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| Analysis on planting modes and benefits of eco-economic forest of returning farmland to forests in northeastern Yunnan Province |
| Fang Xiangjing,Li Guixiang,Meng Guangtao,Zhang Zhenghai,Shao Jinping |
| Yunnan Academy of Forestry,650204,Kunming,China |
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Abstract The growth,soil and water conservation and economic benefit of the typical modes of returning farmland to forest in northeastern Yunnan Province was studied.The results showed that Ligustrum purpurascens forest,Prunus persica forest,Litsea pungens forest and Castanea mollissima forest were considered as major planting modes of returning farmland to forest.The descending order of water holding capacity of overground part is Ligustrum purpurascens,Prunus persica,Litsea pungens,Castanea mollissima.Their run-off is nearly to that of slope farmland,but their soil loss amount is less than that of slope farmland.The eco-economic benefits of the two modes was analysed.The economic benefits of the modes was also obviousely.After planting two years,annual output value of Ligustrum purpurascens forest reached 28 125-112 500 yuan per hectare.The anticipative economic benefits of Gastrodia elata forest was also obviousely.Therefore,the two eco-economic forests planting modes are considerable for returning farmland to forest in the mountain areas of northeastern Yunnan Province.
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Received: 14 March 2008
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