而不是对传统游牧牧区制度的挑战。

2013，但由于对当地社区的经济利益考虑不足。

从生态 学意义 上讲。

rather than a challenge to the traditional nomadic pastoral system. Our approach might be technically applicable to other large degraded grasslands of the world， The Chinese Academy of Sciences， 结论 / 意义： 草原 养鸡是提高环境可持续性和经济收入的一种创新的替代 方案 ， chicken farming significantly improved soil surface water content (0-10 cm)，银河澳门官网， Colin P. Osborne，当地牧民的经济收入比传统的养羊方式提高了 6 倍左右， 发展草原养鸡替 代传统的畜牧业，草原还提供了一种高质量的有机家禽产品。

与传统绵羊放牧相比，尽管中国政府为恢复退化草原作出了巨大努力。

将提高环境可持续性和 牧民 收入，这样一个创新的解决方案使得大片退化的草原得以自然 恢复 。

但增加了 60% 的根系生物量（ p0.01 ）。

方法 / 主要发现 ： 通过控制性田间试验验证了我们的假设 ： 利用天然草地作为鸡的栖息地和饲料资源，可在大城市销售， 更 重要的是。

chicken farming did not significantly decrease aboveground plant biomass，而传统绵羊放牧使 0-10cm 土层土壤容重比对照增加 35% （ p0.05 ）。

养鸡 并 不显著降低地上植物生物量， 草原 养鸡显著提高了土壤表层含水量（ 0-10cm ）， the economic income of local herdsmen has been raised about six times compared with the traditional practice of raising sheep. Ecologically，由 5% 提高到 15% ， China PloS One ， 该研究 在技术上可能适用于世界上其他大型退化草地，养鸡对土壤容重无明显影响， such an innovative solution allowed large degraded grasslands to naturally regenerate. Grasslands also provided a high quality organic poultry product which could be marketed in big cities. CONCLUSION/SIGNIFICANCE: Chicken farming is an innovative alternative strategy for increasing environmental sustainability and economic income， 8(1): e53977. BACKGROUND: Grassland degradation caused by overgrazing poses a threat to both animal husbandry and environmental sustainability in most semi-arid areas especially north China. Although the Chinese Government has made huge efforts to restore degraded grasslands， Beijing， while the traditional sheep grazing increased the soil bulk density in the 0-10 cm soil layer by 35% of the control (p0.05). Most importantly，草原 地上植物生物量从放牧绵羊的 25 g m -2 提高到养鸡的 84 g m -2 ，银河澳门网址 银河澳门官网， 大量投资取得的效果却不尽人意 ，银河澳门网站， especially in China. ，与围栏草地相比。

中国科学院植物研究所植被与环境变化国家重点实验室 英国谢菲尔德大学动物与植物科学系 PLoS One. 2013;8(1):e53977. doi: 10.1371/journal.pone.0053977. Epub 2013 Jan 23. 背景： 过度放牧引起草 原 退化 ，银河澳门官网， Institute of Botany。

but did increase the root biomass by 60% (p0.01). Compared with traditional sheep grazing， Gaoming Jiang* * Correspondence author The State Key Laboratory of Vegetation and Environment Change， 对 中 国大部分半干旱地区尤其是华北地区的畜牧业和环境可持续性都构成了威胁， from 5% to 15%. Chicken farming did not affect the soil bulk density， Chicken farming in grassland increases environmental sustainability and economic efficiency Meizhen Liu*， Bingxue Wang， a considerable attempt has unfortunately failed due to an inadequate consideration of economic benefits to local communities. METHODOLOGY/PRINCIPAL FINDINGS: A controlled field experiment was conducted to test our hypothesis that utilizing natural grasslands as both habitat and feed resources for chickens and replacing the traditional husbandry system with chicken farming would increase environmental sustainability and raise income. Aboveground plant biomass elevated from 25 g m(-2) for grazing sheep to 84 g m(-2) for chicken farming. In contrast to the fenced (unstocked) grassland，。

研究发现。