干旱地区农业研究2013，Vol.31Issue(1)：52-56,5.
高海拔地区春小麦干物质积累与水热条件的关系
Relationship between dry matter accumulation of spring wheat and the water and thermal condition in high altitude area
摘要
Abstract
In order to explore the response measures of crop planting under the background of climate changes, the staging seeding test was conducted to evaluate the influence of water and thermal condition on dry matter accumulation of spring wheat in high altitude area. The result showed that the dry matter accumulation of spring wheat was positively related with both accumulated temperature and precipitation at very significant level. If the accumulated temperature increased 50℃·d, the accumulated growth quantity increased 0.2 g·plant-1 ·d-1; and if the precipitation increased 10 mm, the accumulated growth quantity increased 0.11 g·plant-1 ·d-1 during the dry matter accumulation period. The coupling index of water and temperature under different seeding stages in two test years was calculated, and it was found that when the index was high the dry matter accumulation tended to increase, otherwise it tended to reduce. In the factors of water and temperature, the contribution of precipitation was more prominent to the dry matter accumulation of spring wheat in dryland. There was a very significant positive correlation between the final dry matter accumulation and the yield. The planting countermeasures were proposed according to the features of dry matter accumulation and different climate conditions.关键词
高海拔地区/旱地春小麦/干物质积累/水热耦合Key words
high altitude area/ dryland spring wheat/ dry matter accumulation/ water and temperature coupling分类
农业科技引用本文复制引用
马兴祥,陈雷,王鹤林,丁文魁,阳伏林..高海拔地区春小麦干物质积累与水热条件的关系[J].干旱地区农业研究,2013,31(1):52-56,5.基金项目
国家重大科学研究计划"全球典型干旱半干旱地区气候变化及其影响"(2012CB955304) （2012CB955304）
973计划"全球变化影响下我国主要陆地生态系统的脆弱性与适应性研究"(2010CB951302) （2010CB951302）
科技部公益研究项目"西北地区旱作农业对气候变暖的响应特征及其预警和应对技术研究"(GYHY200806021-01) （GYHY200806021-01）
科技部行业(气象)专项"农田土壤水分利用效率对气候变化的响应及适应技术"(GYHY201106029) （气象）
甘肃省气象局气象科研项目(2012-15) （2012-15）
兰州干旱气象研究所科研项目(KYS2012BSKY01) （KYS2012BSKY01）
