[ Objective ] The aim was to study the bioremediation mechanism of soil pollution. [ Method ] The effects of applying biological organic fertilizers on the bioremediation of soil pollution in orchard were studid by ex...[ Objective ] The aim was to study the bioremediation mechanism of soil pollution. [ Method ] The effects of applying biological organic fertilizers on the bioremediation of soil pollution in orchard were studid by experiment in orchard field and soil simulative experiment. [ Result] The biological organic fertilizers improved the activities of enzymes like polyphenol oxidase, urease, phosphatase, etc. in root-zone soil, promoted the passivation of heavy metals like Cd^2+ , Pb^2+ , Cr^3+ , As^8+ , etc. in root-zone soil, increased the quantities of useful active bacterium like beneficial fungi, actinomycetes, bacterium, etc. and decreased the quantities of harmful biology (like Fusarium oxysporum, Moniliophthora roreri, Ruselliniu necutrix/Helicobasidium mompa, nematode, etc. [ Conclusion] The study results provide some references for the popularization and application of biological organic fertilizers on fruit trees.展开更多
The features of branching and growth studied included height, diameter at breast height (DBH), total number of branches, annual height growth, annual branch elongation in the year of elongating, annual branch number f...The features of branching and growth studied included height, diameter at breast height (DBH), total number of branches, annual height growth, annual branch elongation in the year of elongating, annual branch number for four consecutive years, diameter of branches of different ages, and diameter of stem where branch-whorl originates. For features of total growth and overall branching, no significant differences were found between families, except for DBH. For annual features, no significant differences were found in annual stem height growth, annual branch elongation in the year of elongation and diameter of branches. In the last four years, differences in number of branches were not significant in the first two years but were significant in the last two year; differences in stem diameter where branch-whorls grow were significant for the four consecutive years. Trend of annual growth and branching features of families can be divided into three types as increasing type, stable type and fluctuating type. Most of families have an increasing type with respect of annual height growth and annual branch elongation, while most families belong to a fluctuating type with annual branch number. The results indicated that in the fifth year after planted in seedling seed orchard, differences between families were mostly insignificant. This result may have two main explanations: one is the growth rhyme in early ages of Masson pine, the other one is the complex paternal components to form the open-pollinated families. Family selection seemed to be not useful based on the result. It is suggested to select some of families in the nursery instead of to use all the families when establishing seedling seed orchards with open-pollinated families from plus-trees.展开更多
The accelerating urbanization process leads to aggravated environmental problems, thus garden design which is a creative activity connecting human and nature has attracted much attention, and also garden designers hav...The accelerating urbanization process leads to aggravated environmental problems, thus garden design which is a creative activity connecting human and nature has attracted much attention, and also garden designers have had to rethink about environmental ethics and morals. This study, from the perspective of environmental ethics, duly proposed the brand-new concept of 'appropriate garden of primitive ecology', proceeded from the orientation, form, value, theoretical basis, realistic significance, culture and consumption psychology of 'garden of primitive ecology', fully developed outstanding ecological wisdoms and morals in traditional Chinese garden culture, boosted garden designs to the environmental ethics level of eco-justice, to seek for the approach to 'garden of primitive ecology' with indigenous Chinese environmental ethic characteristics.展开更多
Planting mulch grasses in orchards,as a technique to build ecological orchards,can be one of the strategic approaches for rural revitalization.This study sorted out the common varieties of mulch grasses and analyzed t...Planting mulch grasses in orchards,as a technique to build ecological orchards,can be one of the strategic approaches for rural revitalization.This study sorted out the common varieties of mulch grasses and analyzed their application statuses in orchards of southern China.According to different utilization purposes of mulch grasses in orchards,scientific suggestions were given from aspects of grass selection,cultivation techniques,management methods and use modes.The study will provide reference for the construction of ecological orchards in southern China.展开更多
The establishment and development of the industrial symbiosis of eco-industrial park are affected by several factors.Based on the formed industrial symbiosis supporting system chart,this article analyzes the microcosm...The establishment and development of the industrial symbiosis of eco-industrial park are affected by several factors.Based on the formed industrial symbiosis supporting system chart,this article analyzes the microcosmic supporting system and macroscopic supporting system.In the microcosmic supporting system,it elaborates five aspects including key enterprises,service intermediaries in the park,symbiotic enterprises,competitors and the public in detail.Then it describes the macroscopic supporting system from four aspects of governmental participation,technological innovation,educational promotion and cultural support.Finally,combining with the current construction status of the eco-industrial park in China,it proposes the countermeasures and suggestions to build the supporting system for the eco-industrial park and provides theoretical support for the faster and better construction of the eco-industrial park in China.展开更多
Anthropogenic disturbances influence plant regeneration and species diversity, which impact the conservation status of protected areas. A study was conducted in the Sitakund Botanical Garden and Eco-park (SBGE), Chi...Anthropogenic disturbances influence plant regeneration and species diversity, which impact the conservation status of protected areas. A study was conducted in the Sitakund Botanical Garden and Eco-park (SBGE), Chittagong, Bangladesh to analyze the natural regeneration and tree species diversity in disturbed and less disturbed zones. Stratified and systematic random sampling was used to select 50 sample plots from each of the two zones. A total number of 109 plant species from 43 families were recorded in the study; of which 93 species were of natural origin while the rest were planted. From the species with natural origin 66 were tree species, 9 were shrub species and 28 were climbers. Species richness, density of regeneration and disturbance index in the height classes (0- 0.5 m) and {dbh 〉 6 cm) indicated significant differences between the zones. The study analyzed how disturbances affect species diversity in the area. It was found that species richness and basal area are negatively related with disturbances. Moreover, density (N/ha) of trees was more likely to decrease with increasing tree height that reflects the huge demand of local people to harvest large trees as part of their income generating activities. The study findings have implications for future managementdecisions of the SGBE. To restore these ecosystems, management should focus on both biodiversity eonservation and providing benefits to local people without hampering forest ecosystems.展开更多
Tea is a perennial and evergreen plant. Cultivated tea trees provide a habitat for insect pests and their natural enemies. In Japan, granuloviruses (GVs) have successfully controlled two of the most important pests of...Tea is a perennial and evergreen plant. Cultivated tea trees provide a habitat for insect pests and their natural enemies. In Japan, granuloviruses (GVs) have successfully controlled two of the most important pests of tea, Adoxophyes honmai and Homona magnanima (Tortricidae: Lepidoptera). The GVs are produced in vivo and a single application sustains pesticidal efficacy throughout a year, which encompasses 4 to 5 discrete generations of both species. A. honmai and H. magnanima also have various natural enemies, especially hymenopteran parasitoids. Such resident natural enemies also play a role in reducing the pest density in virus-controlled fields, but the effect of virus infection on parasitoids sharing the same host larva has not been well studied. Survival of one of the major parasitoids of A. honmai, Ascogaster reticulata (Braconidae: Hymenoptera), is reduced by virus infection of the host. Viruses, including GV and entomopoxvirus (EPV), and certain koinobiont endoparasitoids, including A. reticulata, are both known to regulate host endocrinology. However, the GV and EPV have distinct host regulation mechanisms, and consequently have different impacts on the survival of A. retuculata, when A. reticulata parasitizes a host that is infected with either GV or EPV. These additional effects on host regulation displayed by both viruses and parasitoids affect the outcome of virus-parasitoid interactions.展开更多
The Micangshan Forest Park is located in the northeast edge of the Sichuan Basin. The wild animals and plants resources are rich and the ecosystem is integrity. There are well-preserved areas of native biological comm...The Micangshan Forest Park is located in the northeast edge of the Sichuan Basin. The wild animals and plants resources are rich and the ecosystem is integrity. There are well-preserved areas of native biological communities. Its strip and the region decided that on the one hand biological diversity is rich; on the other hand, there is its unique ecological fragility. Once it is destroyed, it would be very difficult to restore. In order to protect the ecological environment of wild animal and plant habitats and wild animal and plant resources, this paper uses quadrat survey procedure to carry on the investigation. In the Micangshan Forest Park's typical land sector the author establishes the sample area of 20 m×20 m to invest the tree layer of plant species and builds five 2 m×2 m the small quadrats along the type place's diagonal line machinery to invest bush level and the field layer floristic component. Again according to the Micangshan Forest Park's terrain, the vegetation and the difference humanity interference condition, the autor builds the different quantities separately the line transect to invest the animal type. This article through to eastern Sichuan Province north the Micangshan forest park biodiversity resources investigation, has analyzed the biodiversity protection work present situation and the existence question, and put forward the proposal to the next protection work.展开更多
This paper reviews virtual reality interface, application and design concept in relation with our experience in implementing a virtual bicycling environment application of the University of Indonesia Green Eco-campus....This paper reviews virtual reality interface, application and design concept in relation with our experience in implementing a virtual bicycling environment application of the University of Indonesia Green Eco-campus. The implementation of the Virtual Reality VR used 3D-Games Studio with Lite-C software. The authors also experiment with the use of a VR device, i.e. 3D E-Dimensional wireless goggle to improve the feel of presence for the user of our application. The authors created the original elements of UI campus environment, such as, buildings, trees, campus buses, cars, and bike tracks, as well as obstacle in the pathways into 3D virtual shape that resembles the real UI campus environment. The bicycle movement, camera perceptions, and object collision handling have also been implemented. Our application is subsequently tested by the users in terms of the general object condition, user's respond to the virtual reality environment and the future development. Some result of implementing the same environment using Alice has also been shown.展开更多
Despite the widespread incorporation of sustainable development into policy discourses, actually achieving the win-win-win scenario of economic, environmental and social development continues to be problematic. Advoca...Despite the widespread incorporation of sustainable development into policy discourses, actually achieving the win-win-win scenario of economic, environmental and social development continues to be problematic. Advocates of industrial ecology suggest that shifting the basis of industrial production from a linear to a closed loop system, these gains can be achieved. In recent years, concepts drawn from industrial ecology have been used to plan and develop eeo-industrial parks (EIPs) that seek to increase business competitiveness, reduce waste and pollution, create jobs and improve working conditions. Despite a growing interest in EIPs, there have been few empirically informed studies that seek to explore the potential contribution such EIPs may make to sustainable development. This paper contributes to a developing sympathetic critique of industrial ecology by focusing on the key problems and dilemmas that arise in the course of developing eco-industrial parks, drawing upon empirical work conducted in China. The paper draws upon both an extensive survey of EIPs and in-depth interviews conducted with a range of stakeholders at some sites in China. As the paper reveals, EIPs in China are in their early stages and likewise their contribution to economic development and environmental policy, let alone social policies, is complicated and inchoate. The empirical material reveals that key features of industrial ecology such as inter-firm networking and collaboration in the form of materials interchange and energycascading are either absent or in the early planning stages. In each of the cases studied what is emerging is a form of EIP partly determined by the geographic setting and broader economic realities of the locality. While collaborative behavior between firms is central to EIP development if the potential benefits of industrial ecology are to be realized, it is important to realize that such behavior is difficult to develop from scratch through policy intervention. In conclusion, the paper suggests that expectations must be realistic for the community and location in question. As part of that realism, EIP projects must be designed to allow for a gradual approach, and each phase needs to be financially viable.展开更多
There is a deficiency of nurseries in the world producing fruit trees using the organic material management. However, such material has been produced since 2009 at the Research Institute of Horticulture in Skierniewic...There is a deficiency of nurseries in the world producing fruit trees using the organic material management. However, such material has been produced since 2009 at the Research Institute of Horticulture in Skierniewice. To stimulate plant growth, various biopreparations were applied in an organic nursery. Apple trees ('Topaz'/M26) obtained from the organic nursery were used to establish an orchard in 2011. One of the combinations in the orchard consisted of trees produced in a conventional nursery. Trees whose maidens had not been fertilized at all in the organic nursery served as the control. The study was conducted for four years (2011-2014). The least vigorously growing trees were the control trees and those that had been treated in the nursery with the preparation Tytanit, and the most vigorously--those that had been treated there with manure and the biopreparations Micosat, Humus Active + Aktywit PM, and BF Quality and BF Amin. Trees whose maidens had been produced by the conventional method did not differ, in terms of growth vigour, from those treated with the biopreparations Humus UP or Vinassa. The highest cumulative fruit yields from the four-year-old trees were obtained in the combinations where the maidens had been treated in the nursery with the biopreparations BF Amin and BF Quality. The type of fertilization applied to maiden trees in the nursery had no significant effect on mean fruit weight, but it influenced the distribution of fruit in size classes.展开更多
Anxi is the largest producing area of Tie Guanyin tea in China. “The cultural system of Tie Guanyin tea in Anxi” was selected as “Nationaly Important Agricultural Heritage Systems” (China-NIAHS) in 2014. Tea gar...Anxi is the largest producing area of Tie Guanyin tea in China. “The cultural system of Tie Guanyin tea in Anxi” was selected as “Nationaly Important Agricultural Heritage Systems” (China-NIAHS) in 2014. Tea gardens in this region are organic, ecological or non-ecological. After sampling the soil in these three kinds of tea gardens, we compared soil properties and nutrient content at different soil depths using physical and chemical analyses. Our aim was to provide a scientiifc basis for the management of tea plantations. We measured and analyzed soil in two organic, three ecological and one non-ecological tea gardens at depths of 0–10 cm and 10–20 cm in Anxi County. According to Duncan multiple comparisons and t tests, soil nutrients differed between organic and ecological or non-ecological tea gardens at 0–10 cm. Organic matter and total nitrogen differed between organic and non-ecological tea garden soils at 10–20 cm. In organic tea gardens, soil bulk density, porosity, relative water content, soil organic matter, total nitrogen and total phosphorus were advantageous for tea tree growth. In ecological tea gardens, the indicators were appropriate and relatively advantageous for tea tree growth at a soil depth of 0–10 cm. For non-ecological tea garden, the nutrients were at a compact level and negatively affect tea growth. These results show that soil properties and nutrient content in organic and ecological tea gardens are superior to non-ecological tea garden. The development of organic tea gardens is the most suitable strategy for the growth of tea trees.展开更多
Four urban greenbelt types including roadside greenbelt, resident-area greenbelt, landscape forest, and forest park, were simultaneously investigated in Shenzhen, China, in such measures as air temperature, air humidi...Four urban greenbelt types including roadside greenbelt, resident-area greenbelt, landscape forest, and forest park, were simultaneously investigated in Shenzhen, China, in such measures as air temperature, air humidity, wind speed, air anion ratio, and inhalabal particle concentration, which were strongly related with pleasing feeling of human body. The results show that the average air temperature in both forest park and landscape forest is much closer to the pleasing feeling of human body temperature than that of the rest two greenbelts, where it is 1.782 ℃ and 0.837℃ in forest park as well as 3.084 ℃ and 2.140 ℃ in landscape forest less than that of roadside and resident-area greenbelts, respectively. In terms of mean air humidity, forest park and landscape forest are 3.034% and 7.563% higher than that of roadside greenbelt, and 1.205% and 5.734% higher than that of resident-area greenbelt, respectively, implying a sound humidity feeling of human comfort in the former two types. The air cleanness holds a descending rank as forest park, landscape forest, resident-area greenbelt, and roadside greenbelt, whereas the rank in inhalable particle concentration is completely reverse. In general, landscape forest and forest park that mainly consist of trees have a comparatively higher feeling of human comfort whereas roadside and resident-area greenbelts fluctuate irregularly to some extent for the measures studied. The four greenbelt types investigated could be summarized in human comfort as the following descending rank, forest park, landscape forest, resident-area greenbelt, and roadside greenbelt.展开更多
基金Supported by Natural Science Foundation of Liaoning Province(20082131)~~
文摘[ Objective ] The aim was to study the bioremediation mechanism of soil pollution. [ Method ] The effects of applying biological organic fertilizers on the bioremediation of soil pollution in orchard were studid by experiment in orchard field and soil simulative experiment. [ Result] The biological organic fertilizers improved the activities of enzymes like polyphenol oxidase, urease, phosphatase, etc. in root-zone soil, promoted the passivation of heavy metals like Cd^2+ , Pb^2+ , Cr^3+ , As^8+ , etc. in root-zone soil, increased the quantities of useful active bacterium like beneficial fungi, actinomycetes, bacterium, etc. and decreased the quantities of harmful biology (like Fusarium oxysporum, Moniliophthora roreri, Ruselliniu necutrix/Helicobasidium mompa, nematode, etc. [ Conclusion] The study results provide some references for the popularization and application of biological organic fertilizers on fruit trees.
基金This paper was a part of the National Key Project of Science and Technology on Masson Pine breeding during 1996-2000.
文摘The features of branching and growth studied included height, diameter at breast height (DBH), total number of branches, annual height growth, annual branch elongation in the year of elongating, annual branch number for four consecutive years, diameter of branches of different ages, and diameter of stem where branch-whorl originates. For features of total growth and overall branching, no significant differences were found between families, except for DBH. For annual features, no significant differences were found in annual stem height growth, annual branch elongation in the year of elongation and diameter of branches. In the last four years, differences in number of branches were not significant in the first two years but were significant in the last two year; differences in stem diameter where branch-whorls grow were significant for the four consecutive years. Trend of annual growth and branching features of families can be divided into three types as increasing type, stable type and fluctuating type. Most of families have an increasing type with respect of annual height growth and annual branch elongation, while most families belong to a fluctuating type with annual branch number. The results indicated that in the fifth year after planted in seedling seed orchard, differences between families were mostly insignificant. This result may have two main explanations: one is the growth rhyme in early ages of Masson pine, the other one is the complex paternal components to form the open-pollinated families. Family selection seemed to be not useful based on the result. It is suggested to select some of families in the nursery instead of to use all the families when establishing seedling seed orchards with open-pollinated families from plus-trees.
文摘The accelerating urbanization process leads to aggravated environmental problems, thus garden design which is a creative activity connecting human and nature has attracted much attention, and also garden designers have had to rethink about environmental ethics and morals. This study, from the perspective of environmental ethics, duly proposed the brand-new concept of 'appropriate garden of primitive ecology', proceeded from the orientation, form, value, theoretical basis, realistic significance, culture and consumption psychology of 'garden of primitive ecology', fully developed outstanding ecological wisdoms and morals in traditional Chinese garden culture, boosted garden designs to the environmental ethics level of eco-justice, to seek for the approach to 'garden of primitive ecology' with indigenous Chinese environmental ethic characteristics.
基金Supported by National Key Research&Development Project(2018YFD0800501)Hunan Key Research&Development Project(2016JC2028)Science and Technology Innovation Project in Hunan Academy of Agricultural Sciences(2018QN33)~~
文摘Planting mulch grasses in orchards,as a technique to build ecological orchards,can be one of the strategic approaches for rural revitalization.This study sorted out the common varieties of mulch grasses and analyzed their application statuses in orchards of southern China.According to different utilization purposes of mulch grasses in orchards,scientific suggestions were given from aspects of grass selection,cultivation techniques,management methods and use modes.The study will provide reference for the construction of ecological orchards in southern China.
文摘The establishment and development of the industrial symbiosis of eco-industrial park are affected by several factors.Based on the formed industrial symbiosis supporting system chart,this article analyzes the microcosmic supporting system and macroscopic supporting system.In the microcosmic supporting system,it elaborates five aspects including key enterprises,service intermediaries in the park,symbiotic enterprises,competitors and the public in detail.Then it describes the macroscopic supporting system from four aspects of governmental participation,technological innovation,educational promotion and cultural support.Finally,combining with the current construction status of the eco-industrial park in China,it proposes the countermeasures and suggestions to build the supporting system for the eco-industrial park and provides theoretical support for the faster and better construction of the eco-industrial park in China.
基金supported by the OG (sterreichische Orient-Gesellschaft Hammer Purgstall) Vienna, Austria
文摘Anthropogenic disturbances influence plant regeneration and species diversity, which impact the conservation status of protected areas. A study was conducted in the Sitakund Botanical Garden and Eco-park (SBGE), Chittagong, Bangladesh to analyze the natural regeneration and tree species diversity in disturbed and less disturbed zones. Stratified and systematic random sampling was used to select 50 sample plots from each of the two zones. A total number of 109 plant species from 43 families were recorded in the study; of which 93 species were of natural origin while the rest were planted. From the species with natural origin 66 were tree species, 9 were shrub species and 28 were climbers. Species richness, density of regeneration and disturbance index in the height classes (0- 0.5 m) and {dbh 〉 6 cm) indicated significant differences between the zones. The study analyzed how disturbances affect species diversity in the area. It was found that species richness and basal area are negatively related with disturbances. Moreover, density (N/ha) of trees was more likely to decrease with increasing tree height that reflects the huge demand of local people to harvest large trees as part of their income generating activities. The study findings have implications for future managementdecisions of the SGBE. To restore these ecosystems, management should focus on both biodiversity eonservation and providing benefits to local people without hampering forest ecosystems.
基金This work was partially supported by Grant-in-Aid for Scientific Research (B) (18380038)
文摘Tea is a perennial and evergreen plant. Cultivated tea trees provide a habitat for insect pests and their natural enemies. In Japan, granuloviruses (GVs) have successfully controlled two of the most important pests of tea, Adoxophyes honmai and Homona magnanima (Tortricidae: Lepidoptera). The GVs are produced in vivo and a single application sustains pesticidal efficacy throughout a year, which encompasses 4 to 5 discrete generations of both species. A. honmai and H. magnanima also have various natural enemies, especially hymenopteran parasitoids. Such resident natural enemies also play a role in reducing the pest density in virus-controlled fields, but the effect of virus infection on parasitoids sharing the same host larva has not been well studied. Survival of one of the major parasitoids of A. honmai, Ascogaster reticulata (Braconidae: Hymenoptera), is reduced by virus infection of the host. Viruses, including GV and entomopoxvirus (EPV), and certain koinobiont endoparasitoids, including A. reticulata, are both known to regulate host endocrinology. However, the GV and EPV have distinct host regulation mechanisms, and consequently have different impacts on the survival of A. retuculata, when A. reticulata parasitizes a host that is infected with either GV or EPV. These additional effects on host regulation displayed by both viruses and parasitoids affect the outcome of virus-parasitoid interactions.
文摘The Micangshan Forest Park is located in the northeast edge of the Sichuan Basin. The wild animals and plants resources are rich and the ecosystem is integrity. There are well-preserved areas of native biological communities. Its strip and the region decided that on the one hand biological diversity is rich; on the other hand, there is its unique ecological fragility. Once it is destroyed, it would be very difficult to restore. In order to protect the ecological environment of wild animal and plant habitats and wild animal and plant resources, this paper uses quadrat survey procedure to carry on the investigation. In the Micangshan Forest Park's typical land sector the author establishes the sample area of 20 m×20 m to invest the tree layer of plant species and builds five 2 m×2 m the small quadrats along the type place's diagonal line machinery to invest bush level and the field layer floristic component. Again according to the Micangshan Forest Park's terrain, the vegetation and the difference humanity interference condition, the autor builds the different quantities separately the line transect to invest the animal type. This article through to eastern Sichuan Province north the Micangshan forest park biodiversity resources investigation, has analyzed the biodiversity protection work present situation and the existence question, and put forward the proposal to the next protection work.
文摘This paper reviews virtual reality interface, application and design concept in relation with our experience in implementing a virtual bicycling environment application of the University of Indonesia Green Eco-campus. The implementation of the Virtual Reality VR used 3D-Games Studio with Lite-C software. The authors also experiment with the use of a VR device, i.e. 3D E-Dimensional wireless goggle to improve the feel of presence for the user of our application. The authors created the original elements of UI campus environment, such as, buildings, trees, campus buses, cars, and bike tracks, as well as obstacle in the pathways into 3D virtual shape that resembles the real UI campus environment. The bicycle movement, camera perceptions, and object collision handling have also been implemented. Our application is subsequently tested by the users in terms of the general object condition, user's respond to the virtual reality environment and the future development. Some result of implementing the same environment using Alice has also been shown.
文摘Despite the widespread incorporation of sustainable development into policy discourses, actually achieving the win-win-win scenario of economic, environmental and social development continues to be problematic. Advocates of industrial ecology suggest that shifting the basis of industrial production from a linear to a closed loop system, these gains can be achieved. In recent years, concepts drawn from industrial ecology have been used to plan and develop eeo-industrial parks (EIPs) that seek to increase business competitiveness, reduce waste and pollution, create jobs and improve working conditions. Despite a growing interest in EIPs, there have been few empirically informed studies that seek to explore the potential contribution such EIPs may make to sustainable development. This paper contributes to a developing sympathetic critique of industrial ecology by focusing on the key problems and dilemmas that arise in the course of developing eco-industrial parks, drawing upon empirical work conducted in China. The paper draws upon both an extensive survey of EIPs and in-depth interviews conducted with a range of stakeholders at some sites in China. As the paper reveals, EIPs in China are in their early stages and likewise their contribution to economic development and environmental policy, let alone social policies, is complicated and inchoate. The empirical material reveals that key features of industrial ecology such as inter-firm networking and collaboration in the form of materials interchange and energycascading are either absent or in the early planning stages. In each of the cases studied what is emerging is a form of EIP partly determined by the geographic setting and broader economic realities of the locality. While collaborative behavior between firms is central to EIP development if the potential benefits of industrial ecology are to be realized, it is important to realize that such behavior is difficult to develop from scratch through policy intervention. In conclusion, the paper suggests that expectations must be realistic for the community and location in question. As part of that realism, EIP projects must be designed to allow for a gradual approach, and each phase needs to be financially viable.
文摘There is a deficiency of nurseries in the world producing fruit trees using the organic material management. However, such material has been produced since 2009 at the Research Institute of Horticulture in Skierniewice. To stimulate plant growth, various biopreparations were applied in an organic nursery. Apple trees ('Topaz'/M26) obtained from the organic nursery were used to establish an orchard in 2011. One of the combinations in the orchard consisted of trees produced in a conventional nursery. Trees whose maidens had not been fertilized at all in the organic nursery served as the control. The study was conducted for four years (2011-2014). The least vigorously growing trees were the control trees and those that had been treated in the nursery with the preparation Tytanit, and the most vigorously--those that had been treated there with manure and the biopreparations Micosat, Humus Active + Aktywit PM, and BF Quality and BF Amin. Trees whose maidens had been produced by the conventional method did not differ, in terms of growth vigour, from those treated with the biopreparations Humus UP or Vinassa. The highest cumulative fruit yields from the four-year-old trees were obtained in the combinations where the maidens had been treated in the nursery with the biopreparations BF Amin and BF Quality. The type of fertilization applied to maiden trees in the nursery had no significant effect on mean fruit weight, but it influenced the distribution of fruit in size classes.
基金Consulting Project of the Chinese Academy of Engineering(2013-XZ-22)
文摘Anxi is the largest producing area of Tie Guanyin tea in China. “The cultural system of Tie Guanyin tea in Anxi” was selected as “Nationaly Important Agricultural Heritage Systems” (China-NIAHS) in 2014. Tea gardens in this region are organic, ecological or non-ecological. After sampling the soil in these three kinds of tea gardens, we compared soil properties and nutrient content at different soil depths using physical and chemical analyses. Our aim was to provide a scientiifc basis for the management of tea plantations. We measured and analyzed soil in two organic, three ecological and one non-ecological tea gardens at depths of 0–10 cm and 10–20 cm in Anxi County. According to Duncan multiple comparisons and t tests, soil nutrients differed between organic and ecological or non-ecological tea gardens at 0–10 cm. Organic matter and total nitrogen differed between organic and non-ecological tea garden soils at 10–20 cm. In organic tea gardens, soil bulk density, porosity, relative water content, soil organic matter, total nitrogen and total phosphorus were advantageous for tea tree growth. In ecological tea gardens, the indicators were appropriate and relatively advantageous for tea tree growth at a soil depth of 0–10 cm. For non-ecological tea garden, the nutrients were at a compact level and negatively affect tea growth. These results show that soil properties and nutrient content in organic and ecological tea gardens are superior to non-ecological tea garden. The development of organic tea gardens is the most suitable strategy for the growth of tea trees.
文摘Four urban greenbelt types including roadside greenbelt, resident-area greenbelt, landscape forest, and forest park, were simultaneously investigated in Shenzhen, China, in such measures as air temperature, air humidity, wind speed, air anion ratio, and inhalabal particle concentration, which were strongly related with pleasing feeling of human body. The results show that the average air temperature in both forest park and landscape forest is much closer to the pleasing feeling of human body temperature than that of the rest two greenbelts, where it is 1.782 ℃ and 0.837℃ in forest park as well as 3.084 ℃ and 2.140 ℃ in landscape forest less than that of roadside and resident-area greenbelts, respectively. In terms of mean air humidity, forest park and landscape forest are 3.034% and 7.563% higher than that of roadside greenbelt, and 1.205% and 5.734% higher than that of resident-area greenbelt, respectively, implying a sound humidity feeling of human comfort in the former two types. The air cleanness holds a descending rank as forest park, landscape forest, resident-area greenbelt, and roadside greenbelt, whereas the rank in inhalable particle concentration is completely reverse. In general, landscape forest and forest park that mainly consist of trees have a comparatively higher feeling of human comfort whereas roadside and resident-area greenbelts fluctuate irregularly to some extent for the measures studied. The four greenbelt types investigated could be summarized in human comfort as the following descending rank, forest park, landscape forest, resident-area greenbelt, and roadside greenbelt.