摘要
由于地形地貌复杂,加之仅靠1个气象监测站的数据进行宁夏海原县马铃薯区划难以准确,精细化程度不够,采用海原县12个区域自动站2008~2014年资料开展马铃薯气候适宜性精细化区划。根据已有的研究,选择与马铃薯产量相关显著的3个气象因子作为马铃薯适宜气候区划指标,即以7月平均气温表征开花至结薯阶段气温适宜程度,7月降水量表征马铃薯膨大初期水分满足状况,8月最高气温表征薯块膨大中后期热量条件。按照3个因子的等级将研究区域划分为极适宜区、较适宜区和不适宜区3个等级。极适宜区包括海原县南部半阴湿区,为月亮山和南华山两大山系所形成的黄土高原丘陵沟壑区;较适宜区分布在海原县中部大部分地区,该地区地貌复杂,一般为梁峁残塬地带,河谷川地较多。海原县北部是不适宜区。
As the potato regionalization of the Haiyuan County in Ningxia is very difficult in accuracy and elaborate degree due to the complicated topography, geomorphology and data based only one meteorological station, the meticulous potato climate suitability division was carried out with the meteorological observation data from 12 regional stations from 2008 to 2014. The three meteorological factors related to potato yield were selected as the suitable climatic zoning indexes according to the existing researches. One is the average temperature in July which indicates the temperature suitability from flowering to tuberization stage; the second is the precipitation in July which represents the water requirement in the early stage of tuber bulking; and the third is the average highest temperature in August that signs the heat conditions in middle-late periods of tuber bulking. The study area was divided into three grades according to the grade of the three factors: the most suitable, the suitable and the unsuitable areas, respectively. The most suitable area is located in the semi humid loess hilly and gully region between the Moon Mountain and Nanhua Mountain in the southern part of Haiyuan County; the suitable area is distributed in most of the central region of Haiyuan County where the physiognomy is complex with more valley and platform. However, northern Haiyuan is belonged to the unsuited region.
出处
《中国马铃薯》
2017年第4期210-215,共6页
Chinese Potato Journal
基金
中国气象局气候变化专项(CCSF201415)
中国气象局气候变化专项(CCSF201617)
中国气象局气候变化专项(CCSF201727)
关键词
自动气象站
马铃薯
精细化
农业气候区划
automatic weather station
potato
meticulous
agricultural climate regionalization
