Geo-information Tupu Analysis of Land Use Change in Haihe River Basin

[Objective] This study was to provide basis for the scientific management of land use in Haihe River Basin （HRB） through the quantitative exploration of the land use conversion, changes of intensity and spatial distribution in this region. [Method] With the support of remote sensing technology and geographic information technology, the land use maps of the study area in 40 years （1970-2010） were in- terpreted and plotted. Four kinds of tupu, namely, land use change tupu, process tupu, arising tupu and evolution mode tupu were built through the spatial overlay of the land use maps to analyze the change rules of land use patterns. [Result] The conversion of arable land to construction land was the main characteristics of land use changes in HRB for the 40 years; the area of non-stable region accounted for 35% of the total, indicating that the land use changed remarkably, thus, it was nec- essary to strengthen the scientific land management in HRB; the new conversions to all land use patterns were all the lowest in 1980-1990, indicating that land use changed slowly during this period. [Conclusion] The results indicate that, compared with conventional transfer matrix method, geo-information tupu has obvious advantage in analyzing land use changes that it can demonstrate the spatial distribution of interest region, display the multi-dimensional spatial information.

Wisdom and Old --age Pension： Reflections on China＇s Elderly Care Model

The care of the elderly is both a human basic human rights and a manifestation of social civilization. ＂Family pension＂ has always been the main pension model in China for thousands of years. However, with the transformation of social structure and population structure, the traditional ＂family pension＂ model is facing increasing challenges. While other emerging ＂institutions pension＂, ＂community pension＂ and failed to become a ＂family pension＂ alternative options, the role is limited. With the development of a variety of integrated technology, a new integrated technology based on the wisdom of the pension model began to emerge, wisdom pension as a new pension model has been in China with a preliminary attempt, it can maximize the elimination of the Chinese labor force The risk of population loss, the greatest extent to meet the needs of the elderly, the risk of dealing with old age, improve pension efficiency, and give the elderly equalization of power and ability, so as to fundamentally enhance the subjectivity of the elderly. But as a new exploration, but also faced with manyproblems, it is worth our in-depth thinking.

Three modes of climate change since the Last Glacial Maximum in arid and semi-arid regions of the Asian continent

The westerly winds and East Asian summer monsoon play a leading role in climate change of southwestern North America and eastern Asia since the Last Glacial Maximum(LGM),respectively.Their convergence in arid and semi-arid regions of the Asian continent(AAC)makes the regional climate change more complicated on the millennial-scale.There are still limitations in applying paleoclimate records and climate simulations of characteristic periods to investigate climate change patterns since the LGM in this region.In this study,we adopt two indexes indicating effective moisture and rely on a continuous simulation,a time slice simulation,and numerous paleoclimate records to comprehensively investigate the climate change modes and their driving mechanisms since the LGM in AAC.Results demonstrate a millennial-scale climate differentiation phenomenon and three climate change modes possibly occurring in AAC since the LGM.The western AAC largely controlled by the westerly winds is featured as wet climates during the LGM but relatively dry climates during the mid-Holocene(MH),coinciding with the climate change mode in southwestern North America.Conversely,dry conditions during the LGM and relatively wet conditions during the MH are reflected in eastern AAC governed by the East Asian summer monsoon,which leans to the climate change mode in eastern Asia.If climate change in central AAC is forced by the interaction of two circulations,it expresses wet conditions in both the LGM and MH,tending to a combination of the southwestern North American and eastern Asian modes.Precipitation and evaporation exert different intensities in influencing three climate modes of different periods.Furthermore,we identify the significant driving effects of greenhouse gases and ice sheets on westerly-dominated zones of AAC,while orbit-driven insolation on monsoon-dominated zones of AAC.