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为了评估哈尼水稻地方品种可持续发展的内在因素,调查了元阳县水稻地方品种的多样性和箐口村水稻种子的更换情况,结果显示元阳水稻地方品种多样性的减少比发达地区缓慢的多。在婚姻状况和海拔梯度两方面,哈尼的换种表现出明显的规律性。68.6%的非本村互婚户从外村引种,55.1%的本村互婚户在村内互换种子,购买种子的农户极少;35%的农户从低海拔调换种子,40%的农户从高海拔调换种子,25%的农户种子来自几乎相同的海拔。结果暗示了频繁、规律的换种是保证哈尼水稻地方品种可持续发展的重要因素。
In order to evaluate the inherent factors of sustainable development of rice landraces in Hani, the diversity of rice landraces in Yuanyang County and the replacement of rice seeds in Cheukou Village were investigated. The results showed that the reduction of landraces diversity in Yuanyang rice was slower than that in developed areas many. In terms of marital status and altitude gradient, Hani showed obvious regularity. 68.6% of the non-village married couples introduced them from outside the village, 55.1% of the local village inter-marriage households exchanged seeds in the village, and very few farmers bought the seeds. 35% of farmers switched seeds from low altitude and 40% from high altitude Exchanging seeds, 25% of farmers come from almost the same altitude. The results suggest that frequent and regular changes are important factors to ensure the sustainable development of Hani rice landraces.