Grassland ecological protection compensation and reward policy is the largest-scale investment concerning themost extensive areas since foundation of the PRC. It will be the long-term implementationpolicy for grasslan...Grassland ecological protection compensation and reward policy is the largest-scale investment concerning themost extensive areas since foundation of the PRC. It will be the long-term implementationpolicy for grassland ecological protection. In this study,based on macro-perspective, the policy effects ofgrasslandproductivity, ecological protection, animal husbandryoutput, pastoralists＇ income were ana- lyzed. The resultsshow that, afterimplementation of the policy, naturalgrass production and grasslandtheoretical stocking rateincreased. The averagenatural grasslandlivestockoverloading ratedecreased significantly, comprehensivenationalgrasslandvegetation coverageis increasing. Besides, adult cattleandbeef yield arefluctuated. Sheep head, adult sheep, sheep production, milk productionincreasedin varying degrees. The per capita netincomeof farmers and pastoralists, livestock income, the proportion oflivestockincomewere higher than those beforeimplementation of the policy.展开更多
In accordance with the objective to construct a major province in grassland animal husbandry,the following ways were used for enhancing development,improving the scientific and technological content,increasing the sca...In accordance with the objective to construct a major province in grassland animal husbandry,the following ways were used for enhancing development,improving the scientific and technological content,increasing the scale of the industry and market development to set up our own ecological grass industry brand and finally reach sustainable development strategy.This paper discussed the status of Guizhou Province grass industry development from the grass industry resources,grassland and animal husbandry production,prataculture technology problem.展开更多
Under the conditions of climate warming,grassland degradation,frequent sandstorms,and fast increases in livestock numbers,coordinating animal husbandry and ecological protection is an important issue facing Mongolia.U...Under the conditions of climate warming,grassland degradation,frequent sandstorms,and fast increases in livestock numbers,coordinating animal husbandry and ecological protection is an important issue facing Mongolia.Using Khutag-Undur as an example,this study explores the dynamic process,future scenarios,and optimization strategies of the animal husbandry system in a typical Soum of Mongolia from 2015 to 2050 under three future climate socioeconomic scenarios of CMIP 6:SSP1-RCP2.6,SSP2-RCP4.5,and SSP5-RCP8.5.First,the animal husbandry system was deconstructed into three subsystems:grassland primary production,livestock secondary production,and herder consumption.Based on the negative feedback mechanism of forage-livestock balance,a system dynamics model for the Khutag-Undur Soum animal husbandry system was developed.This model integrates spatial data such as land cover and NPP,as well as statistical data on livestock,herder income and expenditures,sample plot surveys,and herder questionnaires.The model was used to simulate the historical changes(2015-2022)in forage production and carrying capacity,livestock stock,and livestock output of Khutag-Undur,and then to forecast the future scenarios of those variables for 2022-2050.Second,the most suitable future scenario for the Soum was identified by comparing the three future scenarios using a pastural system sustainability evaluation method.Finally,based on three indicators of livestock numbers,a two-step livestock reduction strategy was proposed.The main conclusions are that the rapid growth of livestock numbers in Khutag-Undur places considerable pressure on the grassland,and the SSP1-RCP2.6 scenario is the most suitable future scenario for the Soum.However,even in this suitable scenario,grassland overloading remains evident.The continuous implementation of a livestock reduction strategy is recommended to maintain the sustainable development of animal husbandry and grassland conservation.展开更多
Grassland ecosystems are one of the most important terrestrial ecosystems on the earth.Central Asia has the largest contiguous grazing area in the world and good conditions for the development of animal husbandry.Howe...Grassland ecosystems are one of the most important terrestrial ecosystems on the earth.Central Asia has the largest contiguous grazing area in the world and good conditions for the development of animal husbandry.However,in the past 30 years,the grassland ecosystem in Central Asia has experienced significant degradation,and the livestock industry has also experienced an overall decline to the point that livestock products are now dependent on imports.The ecological footprint method was used to analyze the change trend and characteristics of grassland ecological carrying capacity and ecological occupation in Central Asia.The grassland ecological capacity in Central Asia was found to be much higher than the global level,and great potential still remains for further development and utilization.The international trade of livestock products in Central Asian countries showed a deficit,and the net import of livestock products increased year by year.Net imports reached 9.5%in 1992-2016,and the dependence on foreign countries increased significantly,which is not conducive to the sustainable development of animal husbandry in Central Asia.In the future,the counties of Central Asia should optimize the aspects of policy,management and technology to improve the productivity of grassland animal husbandry,strengthen grassland ecological protection,and realize the coordinated and sustainable development of their grassland ecological economic systems.展开更多
基金Supported by National Natural Science Funds of China(71503251)The Agricultural Science and Technology Innovation Program(ASTIP-IAED-2015-01)China forage and grass research system(CARS-35-22)~~
文摘Grassland ecological protection compensation and reward policy is the largest-scale investment concerning themost extensive areas since foundation of the PRC. It will be the long-term implementationpolicy for grassland ecological protection. In this study,based on macro-perspective, the policy effects ofgrasslandproductivity, ecological protection, animal husbandryoutput, pastoralists＇ income were ana- lyzed. The resultsshow that, afterimplementation of the policy, naturalgrass production and grasslandtheoretical stocking rateincreased. The averagenatural grasslandlivestockoverloading ratedecreased significantly, comprehensivenationalgrasslandvegetation coverageis increasing. Besides, adult cattleandbeef yield arefluctuated. Sheep head, adult sheep, sheep production, milk productionincreasedin varying degrees. The per capita netincomeof farmers and pastoralists, livestock income, the proportion oflivestockincomewere higher than those beforeimplementation of the policy.
文摘In accordance with the objective to construct a major province in grassland animal husbandry,the following ways were used for enhancing development,improving the scientific and technological content,increasing the scale of the industry and market development to set up our own ecological grass industry brand and finally reach sustainable development strategy.This paper discussed the status of Guizhou Province grass industry development from the grass industry resources,grassland and animal husbandry production,prataculture technology problem.
基金The National Key R&D Program of China(2022YFE0119200)The National Natural Science Foundation of China(32161143025,42371283)The Second Tibetan Plateau Scientific Expedition and Research Program(STEP),China(2019QZKK0603)。
文摘Under the conditions of climate warming,grassland degradation,frequent sandstorms,and fast increases in livestock numbers,coordinating animal husbandry and ecological protection is an important issue facing Mongolia.Using Khutag-Undur as an example,this study explores the dynamic process,future scenarios,and optimization strategies of the animal husbandry system in a typical Soum of Mongolia from 2015 to 2050 under three future climate socioeconomic scenarios of CMIP 6:SSP1-RCP2.6,SSP2-RCP4.5,and SSP5-RCP8.5.First,the animal husbandry system was deconstructed into three subsystems:grassland primary production,livestock secondary production,and herder consumption.Based on the negative feedback mechanism of forage-livestock balance,a system dynamics model for the Khutag-Undur Soum animal husbandry system was developed.This model integrates spatial data such as land cover and NPP,as well as statistical data on livestock,herder income and expenditures,sample plot surveys,and herder questionnaires.The model was used to simulate the historical changes(2015-2022)in forage production and carrying capacity,livestock stock,and livestock output of Khutag-Undur,and then to forecast the future scenarios of those variables for 2022-2050.Second,the most suitable future scenario for the Soum was identified by comparing the three future scenarios using a pastural system sustainability evaluation method.Finally,based on three indicators of livestock numbers,a two-step livestock reduction strategy was proposed.The main conclusions are that the rapid growth of livestock numbers in Khutag-Undur places considerable pressure on the grassland,and the SSP1-RCP2.6 scenario is the most suitable future scenario for the Soum.However,even in this suitable scenario,grassland overloading remains evident.The continuous implementation of a livestock reduction strategy is recommended to maintain the sustainable development of animal husbandry and grassland conservation.
基金The Second Comprehensive Scientific Investigation of Tibet Plateau—Regional Function Types and Zoning Plans(2019QZKK0406)The Research on Resource Bottleneck and Security Guarantees for One-hundred strategic Targets(Y9X0722601)
文摘Grassland ecosystems are one of the most important terrestrial ecosystems on the earth.Central Asia has the largest contiguous grazing area in the world and good conditions for the development of animal husbandry.However,in the past 30 years,the grassland ecosystem in Central Asia has experienced significant degradation,and the livestock industry has also experienced an overall decline to the point that livestock products are now dependent on imports.The ecological footprint method was used to analyze the change trend and characteristics of grassland ecological carrying capacity and ecological occupation in Central Asia.The grassland ecological capacity in Central Asia was found to be much higher than the global level,and great potential still remains for further development and utilization.The international trade of livestock products in Central Asian countries showed a deficit,and the net import of livestock products increased year by year.Net imports reached 9.5%in 1992-2016,and the dependence on foreign countries increased significantly,which is not conducive to the sustainable development of animal husbandry in Central Asia.In the future,the counties of Central Asia should optimize the aspects of policy,management and technology to improve the productivity of grassland animal husbandry,strengthen grassland ecological protection,and realize the coordinated and sustainable development of their grassland ecological economic systems.
