Cultivated land quantity niche regulation and its environmental effect
The change in the quantity of cultivated land influences the structure, function and evolvement of ecosystem. The rational change in the quantity of cultivated land will be propitious to ecological security and sustainable development, and irrational change will deteriorate ecological environment. The concept of cultivated land quantity niche regulation was firstly put forward based on niche theory and the action-feedback mechanism between cultivated land quantity niche and cultivated land benefit niche. Then, the regulation measures of cultivated land quantity niche were brought forward in rural-urban area, agro-forest area and consolidation-reclamationexploitation area. Finally, the ecological environmental effect after regulation was analyzed. The results show that different measures should be taken to regulate cultivated land quantity niche in different areas. The economic and social benefit niche of cultivated land should be promoted to regulate cultivated land quantity niche in ruralurban area and consolidation-reclamation-exploitation area. The social benefit niche of cultivated land should be reduced in agro-forest area. The regulation goal of cultivated land quantity niche will be attained by different measures.
niche theory cultivated land quantity niche regulation land reclamation environmental effect
NIU Hai-peng FANG Guo-you GAO Han-qi SONG Jian-rui
School of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo 454000, China
国际会议
河南焦作
英文
699-705
2011-06-18（万方平台首次上网日期，不代表论文的发表时间）