The current situation and prospect of the study on industrial ecology Advances in Historical Biogeography: a Brief Perspective The research progresses of plant growth substances New dimensions in agroecology Responses of soil respiration to different environment factors in semi-arid and arid areas Progress and Perspectives on Vegeta tion Restora tion in the Dry-hot Valley Research progress on environmental carrying capacity Perspectives of Molecular Design Breeding in Crops Historical retrospect and the perplexity on the studies of the Oryza polyploids Systematics of the enchytraeidae (annelida, clitellata): past, present and future Research overview and trend on biological invasion in mangrove forests A review of ecosystem services and research perspectives The mechanism and methodology investigation of regional ecological security assessment from a perspective on disaster: a case study of Liaohe River watershed Landscape pattern analysis in landscape ecology: current, challenges and future The key research topics in landscape ecology Trends and Prospect of Basic Research on Root and Tuber Crops #br#in China Vegetation mapping and spatial pattern analysis using IKONOS data:a case study in the Wufendigou area