基于GIS的云南省木薯種植適宜性區(qū)劃
發(fā)布時間:2018-05-08 17:27
本文選題:木薯 + GIS; 參考:《江蘇農(nóng)業(yè)科學(xué)》2017年16期
【摘要】:通過進(jìn)行木薯種植適宜性區(qū)劃研究,為云南省木薯產(chǎn)業(yè)的規(guī)劃布局提供科學(xué)依據(jù)。根據(jù)云南省氣候資源特點和木薯對生長環(huán)境的要求,分析確定了影響木薯生長分布的適宜性區(qū)劃指標(biāo)。結(jié)合云南省1∶25萬地理信息數(shù)據(jù)、云南省109個氣象站1981—2010年氣候資料,選取年極端最低溫度、年極端最高溫度、年降水量、年平均溫度、全年≥10℃活動積溫5個氣候因子,采用層次分析法求取因子權(quán)重,借助地理信息系統(tǒng)(GIS)空間分析技術(shù)對區(qū)劃指標(biāo)進(jìn)行細(xì)網(wǎng)格推算,推算出無測站地區(qū)區(qū)劃指標(biāo)的空間分布情況,得出云南省1 km×1 km網(wǎng)格化氣候資源空間分布結(jié)果,按照最適宜生長區(qū)、適宜生長區(qū)、次適宜生長區(qū)和不適宜生長區(qū)對云南省木薯種植進(jìn)行區(qū)域劃分,并制作云南省木薯種植區(qū)劃專題圖。區(qū)劃結(jié)果表明:云南省種植木薯潛力很大,可以進(jìn)一步發(fā)展木薯種植產(chǎn)業(yè)。
[Abstract]:In order to provide scientific basis for the planning and layout of cassava industry in Yunnan Province, the suitable division of cassava cultivation was studied. According to the characteristics of climatic resources and the requirement of cassava growth environment in Yunnan Province, the suitable regionalization indexes affecting the growth distribution of cassava were analyzed and determined. Based on the geographic information data of 1: 25 million in Yunnan Province, the climatic data of 109 meteorological stations in Yunnan Province from 1981 to 2010 were used to select the annual extreme minimum temperature, the annual extreme maximum temperature, the annual precipitation, and the annual average temperature. Five climatic factors of active accumulated temperature 鈮,
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