|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Emissions Trading, Capital Flows and the Kyoto Protocol 显示文摘 | McKibbin W Ross M T Shackleton R | 1999 | Energy Journal1999，，3： | 1 |
| 2 | Emissions Trading, Capital flows and the Kyoto Protocol 显示文摘 | McKibbin W Ross M T Shackleton R | 1999 | Energy Journal1999，，3： | 1 |
| 3 | Emissions trading,capital flows and the Kyoto Protocol显示文摘 | cKibbin W Ross M T Shackleton R | 1999 | The Energy Journal (special issue onthe Kyoto Protocol)1999，，： | 1 |
| 4 | Emissions trading,capital flows and the Kyoto Protocol显示文摘 | Ross M L Shackleton R | 1999 | The Energy Journal(special issue on the Kyoto Protocol)1999，，： | 1 |
| 5 | Effects of native and invasive Prosopis species on topsoil physiochemical properties in an arid riparian forest of Hormozgan Province,Iran显示文摘Biological invasions can alter soil properties within the range of their introduced,leading to impacts on ecosystem services,ecosystem functions,and biodiversity.To better understand the impacts of biological invasions on soil,we compared topsoil physiochemical properties at sites with invasive alien tree species(Prosopis juliflora),native tree species(Prosopis cineraria,Acacia tortilis,and Acacia ehrenbergiana),and mixed tree species in Hormozgan Province of Iran in May 2018.In this study,we collected 40 soil samples at a depth of 10 cm under single tree species,including P.juliflora,P.cineraria,A.tortilis,and A.ehrenbergiana,as well as under mixed tree species.The results showed that organic matter,moisture,potassium,calcium,nitrogen,and magnesium in topsoil at sites with A.tortilis and A.ehrenbergiana growing in combination with P.cineraria were higher than that at sites where P.juliflora was present(P<0.05).Sodium at sites with A.tortilis and A.ehrenbergiana growing in combination with P.cineraria and P.juliflora was lower as compared to that at sites with just A.tortilis and A.ehrenbergiana.Electrical conductivity was lower at sites with A.tortilis and A.ehrenbergiana growing in combination with P.cineraria,and it was higher at sites with mixed Acacia and P.juliflora trees.Based on the generally more positive effect of native Acacia and P.cineraria on topsoil physiochemical properties as compared to the P.julifora,afforestation with native tree species is preferable for soil restoration.In addition,due to the negative effects of P.julifora on soil properties,P.julifora spread should be better managed. | Maryam MOSLEHI JOUYBARI Asgahr BIJANI Hossien PARVARESH Ross SHACKLETON Akram AHMADI | 2022 | Journal of Arid Land2022，14，10： | 1 |
| 6 | Use of non-timber forest products from invasive alien Prosopis species(mesquite) and native trees in South Africa: implications for management显示文摘Background: Prosopis species have been introduced to many areas outside their native range to provide benefits to local communities. Several Prosopis species and their hybrids(hereafter 'mesquite') have, however, become naturalised and invasive and now generate substantial costs. Management options are limited because of the complex conflicts of interest regarding benefits and costs. Management policies and strategies must take account of such conflicts, but further insights are needed on the dimensions of uses and impacts before such information can be usefully applied. Current policy in South Africa allows for the growth and use of mesquite in one province,but not in others where its control is mandatory. We report on a study to quantify the direct use and perceptions of non-timber forest products(NTFPs) from mesquite and native trees in South Africa.Methods: Semi-structures household interviews were conducted with various stakeholder groups to identify what tree products are used, to ascertain amounts used as well as to gauge perceptions of natural resource use between different tree species and use over time.Results: The direct household use value of native trees was higher than that of mesquite, and local stakeholders attached greater value to products from native trees than from mesquite. Therefore, native trees are and will still be preferentially harvested, and mesquite is unlikely to offer protection to native species by providing an alternative source of products. Mesquite pods do, however, provide valuable additional resources(fodder and medicinal products). The use of both native trees and mesquite is decreasing as the incomes of poorer households rise and as alternative energy sources become available. The benefits and reliance on mesquite are not as high as previously assumed and the impacts from mesquite invasions create large problems for local communities.Conclusion: This study provides further evidence that the impacts of mesquite exceed the benefits, lending support for a policy to reduce negative impacts. | Ross T Shackleton David C Le Maitre Brian W van Wilgen David M Richardson | 2015 | Forest Ecosystems2015，2，3： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员