通过生态水文模型评估蒙古草原的牧场影响
1National Institute for Environmental Studies (NIES), 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan. nakat@nies.go.jp.
Environmental science and pollution research international
|February 17, 2025
概括
蒙古 蒙古 蒙古 蒙古 蒙古
科学领域:
- 生态水文学 生态水文学
- 环境科学环境科学
- 水资源管理水资源的管理.
背景情况:
- 蒙古的传统牧业系统因过度使用和水资源退化而面临挑战.
- 关于社会经济变化与生态系统退化之间的联系存在一个知识差距.
研究的目的:
- 量化畜牧用水分布及其与蒙古牧场退化的关系.
- 解决了解社会经济转型对生态系统健康影响的差距.
主要方法:
- 应用基于过程的生态水文模型,国家综合采集区的生态水文 (NICE),加上反向方法 (NICE-INVERSE).
- 在蒙古的29个河流流域进行分析,以评估牲畜不均的用水量和牧场退化.
主要成果:
- 牲畜用水量相当于采矿和城市用水量 (每年100-120万立方米).
- 羊的单位用水量因地区而异,使以前的恒定值假设无效.
- 据估计,山羊的饮用水量比假设的低10%,这与由喀什米尔需求推动的人口增长十倍有关.
- 不同质的畜牧用水与草原植被退化间接相关.
结论:
- 该研究量化了牲畜用水的时空变化及其与牧场退化的联系.
- 鉴定了由人类活动引起的地下水退化热点,包括放牧.
- 过度的牲畜饮用水有助于地下水的减少,草原的退化,以及减少每只动物的水供应.
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