Ecological compensation plays an important role in promoting ecological protection.Identifying factors affecting the willingness of farmers to accept eco-compensation has become a focus of ecological economics.The Qia...Ecological compensation plays an important role in promoting ecological protection.Identifying factors affecting the willingness of farmers to accept eco-compensation has become a focus of ecological economics.The Qianxi traditional chestnut agricultural heritage system is a typical agroforestry system in China and adapts the local environment well.However,local farmers concentrate on chestnut monocultures,driven by short-term profits.The local ecological environment is very fragile.We surveyed 100 local rural households.Based on face-to-face interviews and questionnaires and model assessment,we analyzed factors affecting the willingness of farmers to accept eco-compensation in the Qianxi chestnut agroforestry system of Hebei.We found that many factors influence farmer willingness to accept,including education level,household income,environmental awareness,environmental protection practices and knowledge of ecological compensation.This research provides helps clarify the mechanism of farmer participation in eco-compensation and provides a basis for further development of compensation standards that benefit the local environment.展开更多
China has pledged to reach its dual-carbon goals(i.e.,carbon peak and carbon neutrality)at the end of 2060.To reduce carbon emission in food preservation industry,the preservation effects of cold atmospheric plasma in...China has pledged to reach its dual-carbon goals(i.e.,carbon peak and carbon neutrality)at the end of 2060.To reduce carbon emission in food preservation industry,the preservation effects of cold atmospheric plasma intermittent treatment(1 min/6 h each day,PL4)combined with 15℃ and 4℃ only on Qianxi tomato fruits during 7 d storage were investigated.Results indicated that the firmness,L*,sensory taste,glutathione(GSH)content,mineral(Fe,P,K)content,polyphenol oxidase activity of PL4 tomatoes were significantly increased than that in Control during earlier period storage,with worse weight loss,titratable acid,a*,b*,lycopene content,·OH radical scavenging capacity and same moisture content,total soluble solids,polysaccharide content,total phenolics content,total flavonoid content,ascorbic acid content,1,1-diphenyl-2-picrylhydrazyl radical scavenging capacity,pectin methylesterase activity.Moreover,the power and R134a consumption of PL4 were highly decreased by around 56.4 kW·h and 0.3 g respectively during whole storage as compared to Control,and reduced more than 99.8%carbon emission based on equipment using stage.All in all,this study illustrated that PL4 treatment can be applied as an ecofriendly,low carbon and sustainable preservation strategy for short-term storage of fruits under 4℃ or higher temperature.展开更多
将孢粉与炭屑结合应用于贵州盘县坪地晚更新世剖面,对比高分辨率的NGRIPδ18O、石笋记录分析,用以揭示黔西高原MIS3b期古植被、古气候演变。结果显示:45.16—44.44 ka BP期间,孢粉缺失,炭屑少,说明此时植被稀少,气候寒冷,可能指示H5事件...将孢粉与炭屑结合应用于贵州盘县坪地晚更新世剖面,对比高分辨率的NGRIPδ18O、石笋记录分析,用以揭示黔西高原MIS3b期古植被、古气候演变。结果显示:45.16—44.44 ka BP期间,孢粉缺失,炭屑少,说明此时植被稀少,气候寒冷,可能指示H5事件。44.44—44.04 ka BP期间,以禾本科、百合科为主的草本及喜冷湿的蕨类占优势,乔、灌木稀少。炭屑浓度低,但末期出现峰值,说明气候开始由冷湿向温干过渡。44.04—42.5 ka BP期间,禾本科草类继续增加,成为草原植物的主要成分;乔木种类增加,但含量不高。炭屑浓度高,峰值频繁出现,指示气侯温干。42.5—41.29 ka BP期间,草原萎缩,森林面积扩展。针叶、常绿及落叶阔叶林迅速扩展。炭屑浓度总体偏低稳定,指示该时期气候温凉湿润。总之,MIS3b整体较冷,干湿交替出现。展开更多
基金China National key R&D plan(2017YFC0506402)National Natural Science Foundation of China(41201586)+1 种基金Special Research Institute Project of Chinse Academy of Sciences(TSYJS05)International Exchange and Co-operation Project of MARA "Conservation of Globally Important Agricultural Heritage Systems(GIAHS) in China in 2018
文摘Ecological compensation plays an important role in promoting ecological protection.Identifying factors affecting the willingness of farmers to accept eco-compensation has become a focus of ecological economics.The Qianxi traditional chestnut agricultural heritage system is a typical agroforestry system in China and adapts the local environment well.However,local farmers concentrate on chestnut monocultures,driven by short-term profits.The local ecological environment is very fragile.We surveyed 100 local rural households.Based on face-to-face interviews and questionnaires and model assessment,we analyzed factors affecting the willingness of farmers to accept eco-compensation in the Qianxi chestnut agroforestry system of Hebei.We found that many factors influence farmer willingness to accept,including education level,household income,environmental awareness,environmental protection practices and knowledge of ecological compensation.This research provides helps clarify the mechanism of farmer participation in eco-compensation and provides a basis for further development of compensation standards that benefit the local environment.
基金supported by the National Special Project for Magnetic Confinement Nuclear Fusion Energy Development(Grant No.2022YFE03080000)Collaborative Innovation Program of Hefei Science Center(Grant No.CX2140000018)+1 种基金the Funding for Joint Lab of Applied Plasma Technology(Grant No.JL06120001H)Bozhou City Key Laboratory of Traditional Chinese Medicine Decoction Pieces(Grant No.ZFYP20211201).
文摘China has pledged to reach its dual-carbon goals(i.e.,carbon peak and carbon neutrality)at the end of 2060.To reduce carbon emission in food preservation industry,the preservation effects of cold atmospheric plasma intermittent treatment(1 min/6 h each day,PL4)combined with 15℃ and 4℃ only on Qianxi tomato fruits during 7 d storage were investigated.Results indicated that the firmness,L*,sensory taste,glutathione(GSH)content,mineral(Fe,P,K)content,polyphenol oxidase activity of PL4 tomatoes were significantly increased than that in Control during earlier period storage,with worse weight loss,titratable acid,a*,b*,lycopene content,·OH radical scavenging capacity and same moisture content,total soluble solids,polysaccharide content,total phenolics content,total flavonoid content,ascorbic acid content,1,1-diphenyl-2-picrylhydrazyl radical scavenging capacity,pectin methylesterase activity.Moreover,the power and R134a consumption of PL4 were highly decreased by around 56.4 kW·h and 0.3 g respectively during whole storage as compared to Control,and reduced more than 99.8%carbon emission based on equipment using stage.All in all,this study illustrated that PL4 treatment can be applied as an ecofriendly,low carbon and sustainable preservation strategy for short-term storage of fruits under 4℃ or higher temperature.
文摘将孢粉与炭屑结合应用于贵州盘县坪地晚更新世剖面,对比高分辨率的NGRIPδ18O、石笋记录分析,用以揭示黔西高原MIS3b期古植被、古气候演变。结果显示:45.16—44.44 ka BP期间,孢粉缺失,炭屑少,说明此时植被稀少,气候寒冷,可能指示H5事件。44.44—44.04 ka BP期间,以禾本科、百合科为主的草本及喜冷湿的蕨类占优势,乔、灌木稀少。炭屑浓度低,但末期出现峰值,说明气候开始由冷湿向温干过渡。44.04—42.5 ka BP期间,禾本科草类继续增加,成为草原植物的主要成分;乔木种类增加,但含量不高。炭屑浓度高,峰值频繁出现,指示气侯温干。42.5—41.29 ka BP期间,草原萎缩,森林面积扩展。针叶、常绿及落叶阔叶林迅速扩展。炭屑浓度总体偏低稳定,指示该时期气候温凉湿润。总之,MIS3b整体较冷,干湿交替出现。
