In this research,the contents of organic carbon in soil profiles in rubber forests in west of Hainan were measured and storage quantity of oganic carbon was estimated.The results indicated that contents of organic car...In this research,the contents of organic carbon in soil profiles in rubber forests in west of Hainan were measured and storage quantity of oganic carbon was estimated.The results indicated that contents of organic carbon in soils of ecosystem of rubber forests at different ages were 6.20-14.36 g/kg;organic carbon in soils of rubber forests reduced upon soil depth;the contents differed signigicantly in soils at 0-60 cm in rubber forest at 33 a,but differed little in soils in rubber forests at other ages;the contents were of significant differences in soils in rubber forests at different ages;organic carbon concentrated in soils at 0-30 cm;the storage quantities of organic carbon in rubber forests at 5,10,19 and 33 a were 76.85,74.48,81.74 and 85.31 t/hm^2.Climate,soil property,accumualtion and decomposition of fallen materials,forest age and management are dominant factors influencing accumulation of organic carbon in soils of rubber forest.展开更多
Researchers and extensionists would pursue their interests to develop new inventions and encourage rubber smallholders to adopt new technology and practices to increase production of their holdings. Three interrelated...Researchers and extensionists would pursue their interests to develop new inventions and encourage rubber smallholders to adopt new technology and practices to increase production of their holdings. Three interrelated systems, research and development （R＆D） system, extension/delivery system and client （smallholders） system, are responsible to make the rubber industry viable and dynamic. The extension system is also encouraged to identify and carry out related research activities besides its own core function to enhance clients＇ understanding and to use the findings as basis to plan effective strategies for implementation. Knowledge acquisition among clients is critical in capacity building process. With knowledge, clients tend to develop favorable attitude and use it to develop specific skill to practice recommended technology and new practices. Necessity is the mother of invention in times of need, especially when rubber price is low. Researchers, extensionists and smallholders are ＂forced＂ to collaborate and become creative to fred alternative ways and uses of natural rubber to increase demand of the commodity. When natural rubber price is low, funding for research needs to be maintained at current level, or in some cases, funding is increased to ensure that the industry is not void of new technology and new products. The main goal of the rubber industry is to ensure that new technology and practices are continuously being generated and developed by researchers to be adopted by rubber smallholders. The adoption of new technology and practices by smallholders ensures that production of natural rubber continues to increase, while income of smallholders is maintained or increased at an appreciative level to offset low rubber prices. There is an inclination in the rubber industry that when the commodity＇s price is low, activities and programs related to research and dissemination of research results would follow to be reduced, resulting in stagnation and opportunities for future growth of the industry. The National Blue Ocean Strategy （NBOS） should be used to harness expertise in research among researchers of local universities, as well as to cooperate among extensionists from agencies at state and national levels to help disseminate research results. The NBOS can reduce cost, and has bigger impacts and wider applications of natural rubber for local and international markets.展开更多
基金Supported by Strategic Priority Research Program,CAS(XDA05050601-01-25)Basic Scientific Research Project of Central Science and Technology Institute(163002-2011013)Project of Danzhou Investigation&Experiment Station of Tropical Crops Ministry of Agriculture~~
文摘In this research,the contents of organic carbon in soil profiles in rubber forests in west of Hainan were measured and storage quantity of oganic carbon was estimated.The results indicated that contents of organic carbon in soils of ecosystem of rubber forests at different ages were 6.20-14.36 g/kg;organic carbon in soils of rubber forests reduced upon soil depth;the contents differed signigicantly in soils at 0-60 cm in rubber forest at 33 a,but differed little in soils in rubber forests at other ages;the contents were of significant differences in soils in rubber forests at different ages;organic carbon concentrated in soils at 0-30 cm;the storage quantities of organic carbon in rubber forests at 5,10,19 and 33 a were 76.85,74.48,81.74 and 85.31 t/hm^2.Climate,soil property,accumualtion and decomposition of fallen materials,forest age and management are dominant factors influencing accumulation of organic carbon in soils of rubber forest.
文摘Researchers and extensionists would pursue their interests to develop new inventions and encourage rubber smallholders to adopt new technology and practices to increase production of their holdings. Three interrelated systems, research and development （R＆D） system, extension/delivery system and client （smallholders） system, are responsible to make the rubber industry viable and dynamic. The extension system is also encouraged to identify and carry out related research activities besides its own core function to enhance clients＇ understanding and to use the findings as basis to plan effective strategies for implementation. Knowledge acquisition among clients is critical in capacity building process. With knowledge, clients tend to develop favorable attitude and use it to develop specific skill to practice recommended technology and new practices. Necessity is the mother of invention in times of need, especially when rubber price is low. Researchers, extensionists and smallholders are ＂forced＂ to collaborate and become creative to fred alternative ways and uses of natural rubber to increase demand of the commodity. When natural rubber price is low, funding for research needs to be maintained at current level, or in some cases, funding is increased to ensure that the industry is not void of new technology and new products. The main goal of the rubber industry is to ensure that new technology and practices are continuously being generated and developed by researchers to be adopted by rubber smallholders. The adoption of new technology and practices by smallholders ensures that production of natural rubber continues to increase, while income of smallholders is maintained or increased at an appreciative level to offset low rubber prices. There is an inclination in the rubber industry that when the commodity＇s price is low, activities and programs related to research and dissemination of research results would follow to be reduced, resulting in stagnation and opportunities for future growth of the industry. The National Blue Ocean Strategy （NBOS） should be used to harness expertise in research among researchers of local universities, as well as to cooperate among extensionists from agencies at state and national levels to help disseminate research results. The NBOS can reduce cost, and has bigger impacts and wider applications of natural rubber for local and international markets.
