甘肃不同类型农区农业自然环境资源特点及农田生产力分析  

Agricultural resources and farmland productivity in different sections of Gansu province

作　　者：王鹤龄[1] 牛俊义[2] 王润元[1] 李耀辉[1] 

机构地区：[1]中国气象局兰州干旱气象研究所甘肃省干旱气候变化与减灾重点实验室,甘肃兰州730020 [2]甘肃农业大学农学院,甘肃兰州730070

出　　处：《干旱地区农业研究》2007年第3期163-168,共6页Agricultural Research in the Arid Areas

基　　金：科技部科研院所社会公益研究专项(2005DIB3J100);甘肃省自然科学基金(3ZS061-A25-010);中国气象局兰州干旱气象研究所启动经费;甘肃省气象局面上项目(2006-2)

摘　　要：甘肃省高产农区农业自然环境资源时空组合特点及其光合潜力、光温潜力、光温水潜力和光温水土潜力的分布变化规律分析结果表明：甘肃省光能资源丰富;热量资源偏低且垂直和水平差异显著;水资源贫乏;土地质量普遍偏低。光合潜力河西区可达16 468.5 kg/hm^2,陇南和陇东次之,陇中较其他各地差;光温潜力河西区为10 452.0 kg/hm^2,陇南为7 671.0 kg/hm^2,河西和陇中地区光热同步,光温潜力达光合潜力的66.62%和65.95%,陇东和陇南地区为57.49%和53.06%;在河西绿洲灌区,光温水潜力和光温水土潜力均最高,分别占光温潜力和光温水潜力的88.0%和95.7%以上;陇中、陇东和陇南区较低,光温水土潜力仅达光温水潜力的60%-67.4%。Analysing the space-time distribution characters of natural resources of high yield areas in Gansu, the results indicated that：the areas are generally abundant in natural resources; thermal resource is on the low side and have significant difference in vertical and level distribution; water resource lessness is the main restrictive factor; land nutrient quality is on the low side generaly also. Photophos potency accessed 16 468.5 kg/hm^2 in Hexi area, taking the first place, Longnan and Longdong take second place, Longzhong lower than all others;photosynthesis-templerature potency accessed 10452. 0 kg/hm^2 in Hexi section, Longnan is 7 671. 0 kg/hm^2.

关 键 词：甘肃 农业区 资源潜力 

分 类 号：S162.5[农业科学—农业气象学]