Invasive Common Reed (Phragmites australis (Cav.) Trin. ex Steud.): A Serious Ecological Threat to Ladakh Tethys Himalayan Biodiversity in Changing Climate  

作　　者：Mahendra Singh Raghuvanshi Rajesh Kumar Sawal Stanzin Landol Ngawang Dorje Latika Pandey Spalbar Enoch Mohammad Raza Anurag Saxena Mahendra Singh Raghuvanshi;Rajesh Kumar Sawal;Stanzin Landol;Ngawang Dorje;Latika Pandey;Spalbar Enoch;Mohammad Raza;Anurag Saxena(National Bureau of Soil Survey and Land Use Planning, Nagpur, India;Indian Council of Agricultural Research, National Research Centre for Camel, Bikaner, India;Regional Research Station, Central Arid Zone Research Institute, Leh-Ladakh, India;Kanya Gurukul Campus (GKV), Haridwar, India;Indian Council of Agricultural Research, National Dairy Research Institute, Deemed University, Karnal, India)

机构地区：[1]National Bureau of Soil Survey and Land Use Planning, Nagpur, India [2]Indian Council of Agricultural Research, National Research Centre for Camel, Bikaner, India [3]Regional Research Station, Central Arid Zone Research Institute, Leh-Ladakh, India [4]Kanya Gurukul Campus (GKV), Haridwar, India [5]Indian Council of Agricultural Research, National Dairy Research Institute, Deemed University, Karnal, India

出　　处：《American Journal of Climate Change》2023年第3期321-334,共14页美国气候变化期刊（英文）

摘　　要：Ladakh’s cropped and non-cropped areas suffer greatly from weedy invasion under subsistence agricultural system where weeding is not a priority but total crop + weed biomass together contribute to livestock feeding significantly. As agriculture along with livestock rearing is major activity of livelihood options, thereby contributing significantly to Ladakh economy and income generation for supporting resource poor farmers. Amongst various invasive weed species, the common reed (Phragmites australis) has become a serious ecological threat for agri-silvi-pastoral system biodiversity and accelerated its expansion in cropped lands including many wetland and salt-affected habitats of cold arid region due to its intermediate plant growth habit of C3 - C4 photosynthetic ecotypes. This character makes Phragmites a climate-resilient species, which is a major challenge for cold arid agriculture in the changing climatic patterns. Simultaneously, it is one of the best fodder substitute available under harsh climate. This paper deals with its unique characters and potential threats to the agrobiodiversity of Ladakh.Ladakh’s cropped and non-cropped areas suffer greatly from weedy invasion under subsistence agricultural system where weeding is not a priority but total crop + weed biomass together contribute to livestock feeding significantly. As agriculture along with livestock rearing is major activity of livelihood options, thereby contributing significantly to Ladakh economy and income generation for supporting resource poor farmers. Amongst various invasive weed species, the common reed (Phragmites australis) has become a serious ecological threat for agri-silvi-pastoral system biodiversity and accelerated its expansion in cropped lands including many wetland and salt-affected habitats of cold arid region due to its intermediate plant growth habit of C3 - C4 photosynthetic ecotypes. This character makes Phragmites a climate-resilient species, which is a major challenge for cold arid agriculture in the changing climatic patterns. Simultaneously, it is one of the best fodder substitute available under harsh climate. This paper deals with its unique characters and potential threats to the agrobiodiversity of Ladakh.

关 键 词：PHRAGMITES Ecology BIODIVERSITY FODDER LADAKH 

分 类 号：P59[天文地球—地球化学]