机构地区:[1]Department of Botany,University of Delhi,Delhi 110007,India [2]Independent Researcher,P-2 Sector 3G,Near New Tehri Press Club,New Tehri 249001,India [3]Amity Institute of Forestry and Wildlife,Amity University,Noida 201303,India [4]G.B.Pant National Institute of Himalayan Environment,Kosi-Katarmal 263643,India [5]Department of Environmental Sciences,H.N.Bahuguna University,Srinagar(Garhwal)246174,India [6]School of Environmental Sciences,Jawaharlal Nehru University,New Delhi 110067,India [7]Centre for Ecological Economics and Natural Resources,Institute for Social and Economic Change(ISEC),Bengaluru 560072,India
出 处:《Journal of Mountain Science》2025年第3期860-872,共13页山地科学学报(英文)
摘 要:Scarcity of empirical studies turning the concepts into cost-effective practices is a barrier in achieving the desired trajectory and scale of ecosystem restoration.The present study aimed to assess(i)potential of tree-bamboo-medicinal herb mixed plantation founded on the concept of adaptive comanagement in restoration of degraded community forest in a temperate village of Indian Himalaya and(ii)persistence of offer of local people to voluntarily maintain and expand the trial after its economic benefit/cost ratio became>1.0.Biodiversity,carbon stock and economic benefits were assessed in the restored forest 1,3 and 10 years after 7-year-long funding phase(i.e.,8,10 and 20 years after initial planting in 1991),and other land uses in the village landscape.Significant economic loss occurred from gregarious flowering induced mass mortality of bamboo in the 2nd year after funding phase but it was outweighed by the gain from walnut fruiting.People maintained recovery by transplanting Nepalese Alder(Alnus nepalensis)in gaps.The 20-year-old restored forest land had 17%of aboveground and 75%of belowground carbon stocks,and 39%of flowering species present in the intact forest.Restored forest had only four of the eight Near-threatened/Threatened species present in intact forest.Further,intact forest was monetarily the most efficient land use despite absence of payments for its ecosystem services.People did not expand the trial or medicinal plant cultivation in farms induced by it.They abandoned cropping in 39%farm area and leased 24%abandoned area to a company.Flowering plant species richness and carbon stocks changed at the ecosystem scale but not at the village landscape scale.Emission from agricultural abandonment nullified carbon sequestration by forest restoration.Community forest restoration should render both material/monetary and nonmaterial/non-monetary benefits to people.Cultural landscapes should be taken as spatial units for ecosystem restoration planning,monitoring and evaluation.
关 键 词:BAMBOO BIODIVERSITY Carbon sequestration Climate change Medicinal herbs Threatened species
分 类 号:S718.5[农业科学—林学] X171.1[环境科学与工程—环境科学]
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