西部林业科学
西部林業科學
서부임업과학
JOURNAL OF WEST CHINA FORESTRY SCIENCE
2015年
1期
98-102
,共5页
付小勇%泽桑梓%周晓%季梅
付小勇%澤桑梓%週曉%季梅
부소용%택상재%주효%계매
薇甘菊%MaxEnt模型%适生区%定量分析
薇甘菊%MaxEnt模型%適生區%定量分析
미감국%MaxEnt모형%괄생구%정량분석
Mikania micrantha%MaxEnt model%suitable area%quantitative analysis
利用全球1172个薇甘菊分布点、27个环境因子及MaxEnt模型,预测并定量分析云南省薇甘菊不同等级适生区域及其面积。结果表明,云南省薇甘菊适生区主要分布于北纬25°以南地区,普洱市、德宏州、红河州有大范围高适生区;临沧市、西双版纳州和文山州有大范围的中等适生区;玉溪市、楚雄州、大理州有较大面积的低适生区。云南省薇甘菊适生区等级划分采用阈值较为合理,等级划分结果符合云南省实际情况。高适生区基本都是现有薇甘菊发生的地区,不同适生区等级气候生态条件与薇甘菊生长需求的层次也很吻合。本研究利用全世界1172个薇甘菊发生点数据既包括了原产地中、南美洲,也包括了云南省被入侵地德宏州、保山市、普洱市等,提高了薇甘菊在云南省潜在分布区域预测的可靠性。
利用全毬1172箇薇甘菊分佈點、27箇環境因子及MaxEnt模型,預測併定量分析雲南省薇甘菊不同等級適生區域及其麵積。結果錶明,雲南省薇甘菊適生區主要分佈于北緯25°以南地區,普洱市、德宏州、紅河州有大範圍高適生區;臨滄市、西雙版納州和文山州有大範圍的中等適生區;玉溪市、楚雄州、大理州有較大麵積的低適生區。雲南省薇甘菊適生區等級劃分採用閾值較為閤理,等級劃分結果符閤雲南省實際情況。高適生區基本都是現有薇甘菊髮生的地區,不同適生區等級氣候生態條件與薇甘菊生長需求的層次也很吻閤。本研究利用全世界1172箇薇甘菊髮生點數據既包括瞭原產地中、南美洲,也包括瞭雲南省被入侵地德宏州、保山市、普洱市等,提高瞭薇甘菊在雲南省潛在分佈區域預測的可靠性。
이용전구1172개미감국분포점、27개배경인자급MaxEnt모형,예측병정량분석운남성미감국불동등급괄생구역급기면적。결과표명,운남성미감국괄생구주요분포우북위25°이남지구,보이시、덕굉주、홍하주유대범위고괄생구;림창시、서쌍판납주화문산주유대범위적중등괄생구;옥계시、초웅주、대리주유교대면적적저괄생구。운남성미감국괄생구등급화분채용역치교위합리,등급화분결과부합운남성실제정황。고괄생구기본도시현유미감국발생적지구,불동괄생구등급기후생태조건여미감국생장수구적층차야흔문합。본연구이용전세계1172개미감국발생점수거기포괄료원산지중、남미주,야포괄료운남성피입침지덕굉주、보산시、보이시등,제고료미감국재운남성잠재분포구역예측적가고성。
By using data of 1 172 Mikania micrantha distribution sites in the world, 27 environmental factors and MaxEnt model, prediction and quantitative analysis of Yunnan Mikania micrantha’ s different grades of suitable ar-eas were carried out.The results showed that Yunnan Mikania micrantha suitable areas were mainly distributed in south of 25 degrees north latitude, Pu’ er City, Dehong Prefecture and Honghe Prefecture had large areas of high-level suitable area.Lincang City, Xishuangbanna Prefecture and Wenshan Prefecture had large areas of middle-level suitable area.Yuxi City, Chuxiong Prefecture and Dali Prefecture had large areas of low-level suitable area. Yunnan Mikania micrantha suitable area classification threshold was reasonable, the classification results were con-sistent with actual situation in Yunnan.High-level suitable area was current basic existing area of Mikania micran-tha in Yunnan.Ecological and climatic conditions of different grades of suitable areas were also consistent with Mi-kania micrantha growth requirement.The study used the data from global 1 172 Mikania micrantha distribution points, including not only data from the origin places of central and south America, but also data from the invaded areas in Yunnan such as Dehong Prefecture, Baoshan City and Pu’ er City.This greatly enhanced the prediction reliability of potential distribution areas of Mikania micrantha in Yunnan.