粮食生产服务与土壤保持服务的供给矛盾是制约怒江流域可持续发展的一大阻碍。以流域中心的施甸县为例,使用均方根偏差(Root Mean Square Error, RMSE)方法评估了2000—2020年粮食生产和土壤保持服务权衡强度的空间特征变化。然后将202...粮食生产服务与土壤保持服务的供给矛盾是制约怒江流域可持续发展的一大阻碍。以流域中心的施甸县为例,使用均方根偏差(Root Mean Square Error, RMSE)方法评估了2000—2020年粮食生产和土壤保持服务权衡强度的空间特征变化。然后将2020年作为基准年,以坡耕地生态恢复作为决策变量,使用多目标线性规划提取了高生态恢复优先的区域,进而识别了权衡强度与恢复潜力的空间分布异同。研究结果表明,(1)两项生态系统服务权衡的空间分异明显,研究期间权衡强度呈增加趋势,RMSE平均值由2000年的0.466增加至2020年的0.499;高权衡强度区域主要集中在研究区的低海拔坝区,而低权衡强度区域分布零散,且高/低权衡强度区域在空间上都表现出聚集的特征。(2)根据线性规划绘制的效率前沿曲线,在土壤保持服务收益达到13.35×10^(6)t hm^(-2)a^(-1)时需要转出3388.51hm^(2)坡耕地,同时粮食生产服务损失达9.59×10^(6)kg,而继续提升会显著增加成本。(3)各权衡强度等级坡耕地的生态恢复潜力为:中权衡>低权衡>高权衡,其中权衡强度在0.4—0.5区间的坡耕地最适宜进行生态恢复。这一研究结果可以为山地区域坡耕地利用模式提供参考,推进可持续发展目标的实现。展开更多
Based on data of trade, foreign directinvestment (FDI), economic development andenvironmental conditions in China’s 30 provincesbetween 1990-2002, this paper deals with the impacton Environmental Kuznets Curve (EKC) ...Based on data of trade, foreign directinvestment (FDI), economic development andenvironmental conditions in China’s 30 provincesbetween 1990-2002, this paper deals with the impacton Environmental Kuznets Curve (EKC) of tradeand FDI in China. The results show no direct impacton EKC of trade, on the one hand. However, tradecontributes significantly to economic growth, andhas played a positive role in introducing advancedpollution prevention technology and environmentalmanagement methodology to China. Therefore, aproactive trade policy will help solve the environmentalpollution problem brought by economic growth. Onthe other hand, there is a positive correlation betweenFDI and pollutant emission, which proves that FDIdoes have some negative influence on environmentin China due to hasty introduction of foreign capitaland inadequate environmental management systemin China.展开更多
Issue on illegal logging and related trade is a hot topic for the international community. It has brought the negative effects to the sustainable development on global society, economy and ecology, which is also one o...Issue on illegal logging and related trade is a hot topic for the international community. It has brought the negative effects to the sustainable development on global society, economy and ecology, which is also one of the main objectives of international cooperation to combat with. At present, subjects of international law play a decisive role in combating illegal logging and related trade. The subjects of international law generally refer to states, intergovernmental organizations (IGOs) and part of non-governmental organizations (NGOs), which can have an independent international legal personality, enjoy rights and assume obligations of international law. As a responsible big country of the international community and state member of intergovernmental organizations and international treaties of forest resources protection, China ought to fully perform the obligations of international law. In face of illegal logging and related trade around the world, China should rationally tackle with it, resolutely crack down on it, and finally choose the sustainable development strategy based on rule of law.展开更多
This paper analyses the internal problems and external constraints against the further development of exports trade of Shandong agricultural products. The countermeasures in solving those problems and constraints are ...This paper analyses the internal problems and external constraints against the further development of exports trade of Shandong agricultural products. The countermeasures in solving those problems and constraints are recommended to ensure a sustainable development of Shandong regional agricultural products exports.展开更多
By analyzing the current situation of smart tourism construction in combination with the actual tourism situation in Sanya,this study aims to find out the problems existing in the current smart tourism construction an...By analyzing the current situation of smart tourism construction in combination with the actual tourism situation in Sanya,this study aims to find out the problems existing in the current smart tourism construction and understand the various factors affecting the smart tourism construction in Sanya.Then,relevant theories and practical applications were used to study the ways to carry out smart tourism construction with the help of policy,location,and other advantages to meet the needs of the development of the times.Based on the study,practical countermeasures and suggestions were given to provide reference for the construction of smart tourism,ensure the continuous improvement of smart tourism construction,and help the upgrading and transformation of tourism in Sanya.Based on the analysis of the construction and data of smart tourism and tourism informatization in Sanya,this article has formed a useful method to help Sanya build an international tourist island and a modern smart tourism city using the Hainan Free Trade Port construction policy.展开更多
文摘Based on data of trade, foreign directinvestment (FDI), economic development andenvironmental conditions in China’s 30 provincesbetween 1990-2002, this paper deals with the impacton Environmental Kuznets Curve (EKC) of tradeand FDI in China. The results show no direct impacton EKC of trade, on the one hand. However, tradecontributes significantly to economic growth, andhas played a positive role in introducing advancedpollution prevention technology and environmentalmanagement methodology to China. Therefore, aproactive trade policy will help solve the environmentalpollution problem brought by economic growth. Onthe other hand, there is a positive correlation betweenFDI and pollutant emission, which proves that FDIdoes have some negative influence on environmentin China due to hasty introduction of foreign capitaland inadequate environmental management systemin China.
文摘Issue on illegal logging and related trade is a hot topic for the international community. It has brought the negative effects to the sustainable development on global society, economy and ecology, which is also one of the main objectives of international cooperation to combat with. At present, subjects of international law play a decisive role in combating illegal logging and related trade. The subjects of international law generally refer to states, intergovernmental organizations (IGOs) and part of non-governmental organizations (NGOs), which can have an independent international legal personality, enjoy rights and assume obligations of international law. As a responsible big country of the international community and state member of intergovernmental organizations and international treaties of forest resources protection, China ought to fully perform the obligations of international law. In face of illegal logging and related trade around the world, China should rationally tackle with it, resolutely crack down on it, and finally choose the sustainable development strategy based on rule of law.
文摘This paper analyses the internal problems and external constraints against the further development of exports trade of Shandong agricultural products. The countermeasures in solving those problems and constraints are recommended to ensure a sustainable development of Shandong regional agricultural products exports.
基金supported by the Sanya Planning Projects of Philosophy and Social Sciences(Project Number:SYSK2021-06)the Key Laboratory of Island Tourism Resource Data Mining and Monitoring,Ministry of Culture and Tourism(Project Number:KLITRDMM 2022-03)the 2021“Double First Class”Construction Project of General Universities in Hainan Province:“Business Management(Marine and Island Tourism)”(Project Number:2021-9-3).
文摘By analyzing the current situation of smart tourism construction in combination with the actual tourism situation in Sanya,this study aims to find out the problems existing in the current smart tourism construction and understand the various factors affecting the smart tourism construction in Sanya.Then,relevant theories and practical applications were used to study the ways to carry out smart tourism construction with the help of policy,location,and other advantages to meet the needs of the development of the times.Based on the study,practical countermeasures and suggestions were given to provide reference for the construction of smart tourism,ensure the continuous improvement of smart tourism construction,and help the upgrading and transformation of tourism in Sanya.Based on the analysis of the construction and data of smart tourism and tourism informatization in Sanya,this article has formed a useful method to help Sanya build an international tourist island and a modern smart tourism city using the Hainan Free Trade Port construction policy.
