牦牛牧民对非适口植物入侵高原的感知

S. Barsila
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引用次数: 0

摘要

通过对郎塘国家公园(LNP)和干chanjunga保护区(KCA)两个牦牛养殖区的野外调查,探讨了入侵物种对高寒牧场退化的生物学和社会生态影响。数据是通过牧民访谈收集的,使用精心准备和预先测试的一套问卷(60份),然后在每个站点按照一套清单进行焦点小组讨论(FGD)和关键线人调查(KIS),每五次。研究地点的牧民对入侵物种有普遍的认知。在海拔3000 m处,尼泊尔芦笋(Rumex nepalensis)是最大的入侵物种(75%),在海拔3000 m处与紫茎泽兰(Eupatorium adenophorum)次之(60%),而Lyonia和Juniperus是两个站点最常见的入侵物种。共有12种植物被报道为入侵和非适口植物,来自不同植物类群的植物对入侵物种对草地土壤特征的改变漠不关心,但很好地揭示了草地和牧草生产力和质量的下降。牧民在牧场建立了灌木清除和刀耕火种农业,作为控制入侵物种的传统适应措施。在尼泊尔的整个高山牧场,有必要绘制入侵物种和外来物种危险区的地图,需要建立一个长期监测框架,以确认尼泊尔喜马拉雅山脉的牧民关于入侵高山物种的信息。
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High Altitude Rangelands Invasion by Non-Palatable Plant Species in the Perception of Yak Herders
The biological and socio-ecological dimensions of alpine rangelands degradation by invasive species have been considered in a field survey conducted in two yaks (Bos grunniens) rearing areas i.e., Langtang National Park (LNP) and Kanchanjunga Conservation Area (KCA). Data were collected by herder’s interview using the well-prepared and pretested set of questionnaires (60), followed by a focus group discussion (FGD) and key informants survey (KIS) each five at each site by following a set of checklists.  There was a common perception about the invasive species among the herders in the study sites. The Rumex nepalensis was the most invasive species reported (75% of the respondents) at altitudes up to 3000 m in the KCA, while it was additionally with Eupatorium adenophorum (60%) in the LNP, while the Lyonia and Juniperus were the common invasive species in both sites. Altogether, twelve plant species were reported as invasive and non-palatable species from various botanical groups were indifferent to the changes made by invasive species in rangelands soil characteristics but gave well insight into the declining productivity of grasslands and herbage productivity and quality. Herders established bush clearance and slash and burn agriculture in rangelands as traditional adaptation measures to control the invasive species. Mapping of risk zones of invasive and alien species in the alpine rangelands is necessary across the alpine rangelands of Nepal and a long-term monitoring framework is desirable to confirm the herder's information on invasive alpine species of Nepalese Himalayas.
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来源期刊
CiteScore
1.00
自引率
0.00%
发文量
4
审稿时长
16 weeks
期刊介绍: The Journal of Agriculture and Environment for International Development is an international, multidisciplinary journal dealing with agricultural production, food security, environment, remote sensing and natural resources evaluation, economics and social science, rural development and soil science. The Journal publishes scientific, technical and extensional papers concerning activities devoted to Developing Countries and Countries in transition. The language of the Journal is English. Starting from 2015, papers in other languages will not be accepted.
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