This paper aims at studying the structural evolution of urban construction land and its mechanism and at allocating appropriate construction land, and presents theoretical supports and policy suggestions for the Three Northeastern Provinces to make urban land planning. Urban construction land is divided into Category R (residential), Category M (logistic warehouse and industrial), Category C (public management and public services, commercial service, public infrastructure), Category S (road, green land and square land) according to “Urban Construction Statistics Yearly”. Information entropy and shift-share analysis are employed to study their construction land structural evolution in 34 Northeastern cities by means of GIS spatial analysis. Since 2002, their construction land size has been rising at a annual rate 4.14%,  most contributed by Categories C and S with increasement by 3.29% and 5.51%, respectively compared with 2002. Category R has a least increment among the four categories at a falling trend. Cities with shift effect positively adjusting role on share effect Categories M, C and S have significantly increased in counts, suggesting a rationalizing urban construction land structure in the Northeastern cities. Their construction land structure has had little change with a relatively stability in their proportions among the four categories since 2012. Improvements in industrial structural, urban transportation and urban residential conditions plays a strong role on construction land structural evolution in the Northeastern cities. Appropriate urban construction land structure may boost urban functionalities. Fulfilling comprehensive use efficiency of urban construction land can intensify a modern urban construction. This paper presents suggestions on making appropriate land use policies with priority on land types with growing advantages, diminishing excessive land types and activating the land stock for more rationalized construction land structure in the Northeastern cities.

As internet grows fast, network is becoming a vent of environmental interests conflict of major water projects, the public irrational awareness of their environmental impacts is readily to form network rumor so as to enlarge its social risk. This paper uses environmental damage rumor to explore its transmitting mechanism of major water projects in interaction of government-media-public, and quantitatively studies the impacts of rumor during network transmission on risk management via its hyperspatiotemporal, multiple subjectivity and universality, and discusses paths to governmental governance and prevention of social risks. Matlab simulation suggests that measures such as refuting rumor speed, intensity and information openness vary with rumor transmitting group, stages, information causes and importance. This paper presents suggestions accordingly. 

This paper,based on land survey and remote sensing data in 2005 and 2010 in Heilongjiang’s 76 cities (counties),presents a revised index model of ecological environment quality from a reference of “Technical Guidelines of Ecological Environment Quality Evaluation (Trial)”,which includes land vulnerability,biological abundance, vegetation coverage,water distribution dense,environment quality and biological bearing capacity indexes.The revised model is used to study the evolution of Heilongjiang’s ecological environment,showing an improvement and favorable trending,especially in the eastern coal urban areas,excellent in Daxing’anling ,Xiaoxing’anling and Changbaishan areas,good in Sanjiang plain,Songhua river and its tributaries,ordinary in Songnen plain and eastern coal producing areas,lower in Harbin,Daqing and Qiqihar.

The research advances in Chinas land consolidation performance evaluation are studied from the number of papers, source journals, influence indexes, research methods, topics and supporting foundation items by data retrieval in China Academic Journal Network Publishing Database and statistical analysis. The results indicate that there is a growing number of papers and academic emphasis on the performance evaluation of land consolidation. The papers are published in the journals of agriculture, land, environment and economy and have an extensive influence. The research methods are increasingly diversified and the research topics focus on land consolidation benefits. The support from funds needs enhancing.