LIU Yin-ge.Analysis on Land Use and Farmland Climate Productivity in the Guanzhong Plain[J].Research of Soil and Water Conservation,2005,12(06):21-22,49.
关中平原土地利用及农业气候生产潜力分析
- Title:
- Analysis on Land Use and Farmland Climate Productivity in the Guanzhong Plain
- Keywords:
- land use; photosynthetic thermal productivity; climatic productivity; farmland produce potential
- 分类号:
- F301.4;S162.5
- 摘要:
- 农业生产潜力不仅决定于农业气候条件,而且也依赖于农田的数量、质量和种植结构.利用20世纪90年代关中平原气象观测数据和土地利用变更数据,计算分析了关中平原耕地面积、农田光温和气候生产潜力的变化.结果表明:在这11年的时间里,关中平原耕地转移明显,而且以园地、林地和居民用地等类型为主.农田耕地损失直接导致了关中平原农田生产潜力减少.气候变化中的气温升高导致农田光温生产潜力增加,降水量的减少导致气候生产潜力减少.
- Abstract:
- The climate condition and the quantity,quality of the farmland and plant structure affect agriculture productivity.Based on meteorological data and land use data of 1990～2000 in Guanzhong plain,the photosynthetic thermal productivity(PTP) of farmland was calculated,then the impact of recent land use process on it in 1990’s was analyzed.The results showed that LUCC process and climate change affect Guanzhong plain PTP change trend.Within 11 years,the farmland transferred obviously,which were mostly the garden area,woodland and ground for residents use.The loss of farmland lead to the decrease of farmland produce potential,the high temperature make the farmland photosynthetic thermal productivity increased,the decrease of the amount of water make the climate productivity reduced.
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备注/Memo
收稿日期:2004-12-13。
基金项目:陕西省自然科学基金项目(2002D06);陕西省教育厅重点项目(04JS39)资助
作者简介:刘引鸽(1965- ),女,陕西兴平人,硕士,副教授,主要从事资源环境与灾害学方面研究.