CWE / 808/2017 当前世界环境 0125 - 888 0125 - 895 Enviro研究出版社 cwe - 30 - 32 - 000 天气变化对拉达克地区列城地区种植格局的影响 3. 喀什米尔农业科技大学 斯利那加 190025 印度 2015-08-31 10.12944 / CWE.10.2.13 10卷 问题2 489 - 493 摘要

列城位于32-36°之间;北纬75-80度;列城是这个国家最大的地区,面积达45100公里。农业是这个地区农村人口的主要职业。对数据的初步分析显示,小麦的种植面积自2003年以来一直在增加。值得注意的是,大麦作物种植面积同时减少。值得注意的是,从2003年开始,小麦取代了大麦。这种种植模式的变化与气候条件的变化有关。二零零三年起,五月的月平均日最低气温由4度上升至8度,直至二零零七年。同样,在2003年以前,月平均日最高气温较高(摄氏20度),但在2003至2009年期间下降(摄氏15至20度)。在2003年之前的5月份,降雪是一种常见现象,但在2003 - 2009年期间没有观测到降雪。 Therefore, it is hypothesized that increase in both minimum and maximum temperature during May had enabled the farmers to grow wheat in place of barley. Moreover, during the month of April, snowfall events were significantly reduced in 2003-2009 and in month of May snowfall events was not recorded at all. This may perhaps another reason which enabled farmers to sow the wheat crop during last week of April to mid of May. Interestingly during last two years, the cropping pattern is again reversed. The acreage under wheat crop was decreased and the acreage under barley increased. Such reversal may be due to re-occurrence of snowfall events during first two weeks of May, which was absent during 2003-2009. Therefore, it is quite apparent that weather condition influenced the cropping pattern and crop acreage. However, many other factors like timely availability of seed, quality of seeds as per need of local farmers as they prefer some straw producing varieties, crop rotation pattern, etc., also plays some role in shifting of cropping pattern. Long term data base on crop-weather relationship among with the other factors may help in developing crop weather modeling.

关键字 种植模式 列城 降水 天气变化
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