浙江林学院学报
浙江林學院學報
절강림학원학보
JOURNAL OF ZHEJIANG FORESTRY COLLEGE
2010年
1期
51-56
,共6页
森林生态学%臭柏%生长%生态因子%关联分析%内蒙古
森林生態學%臭柏%生長%生態因子%關聯分析%內矇古
삼림생태학%취백%생장%생태인자%관련분석%내몽고
forest ecology%Sabina vulgaris%growth%ecological factors%Grey System Theory%Inner Mongolia
为了探讨臭柏Sabina vulgaris生长及其影响因素,运用灰色系统理论中的关联分析法,分析了内蒙古自治区主要天然分布区内臭柏生长与生态因子的关系.结果表明:①内蒙古不同天然分布区内,臭柏可在年平均气温为-5.0℃以上,极端最低气温-43.0℃以上,极端最高气温38.6℃以下,年平均降水量180 mm以上的干旱、半干旱地区生长;各地区新梢平均年生长量为7.7~14.6 cm;②根据关联分析,各个生态因子对臭柏生长量的影响程度不同,其影响大小顺序从大到小依次为≥10℃积温、年降水量、极端最高气温、极端最低气温、年蒸发量、海拔高度和年平均气温.因此,在干旱区造林生产实践及臭柏引种推广过程中,在关注年降水量的同时,热量因子的影响不容忽视,尤其是≥10℃积温对臭柏生长产生重要的影响.
為瞭探討臭柏Sabina vulgaris生長及其影響因素,運用灰色繫統理論中的關聯分析法,分析瞭內矇古自治區主要天然分佈區內臭柏生長與生態因子的關繫.結果錶明:①內矇古不同天然分佈區內,臭柏可在年平均氣溫為-5.0℃以上,極耑最低氣溫-43.0℃以上,極耑最高氣溫38.6℃以下,年平均降水量180 mm以上的榦旱、半榦旱地區生長;各地區新梢平均年生長量為7.7~14.6 cm;②根據關聯分析,各箇生態因子對臭柏生長量的影響程度不同,其影響大小順序從大到小依次為≥10℃積溫、年降水量、極耑最高氣溫、極耑最低氣溫、年蒸髮量、海拔高度和年平均氣溫.因此,在榦旱區造林生產實踐及臭柏引種推廣過程中,在關註年降水量的同時,熱量因子的影響不容忽視,尤其是≥10℃積溫對臭柏生長產生重要的影響.
위료탐토취백Sabina vulgaris생장급기영향인소,운용회색계통이론중적관련분석법,분석료내몽고자치구주요천연분포구내취백생장여생태인자적관계.결과표명:①내몽고불동천연분포구내,취백가재년평균기온위-5.0℃이상,겁단최저기온-43.0℃이상,겁단최고기온38.6℃이하,년평균강수량180 mm이상적간한、반간한지구생장;각지구신소평균년생장량위7.7~14.6 cm;②근거관련분석,각개생태인자대취백생장량적영향정도불동,기영향대소순서종대도소의차위≥10℃적온、년강수량、겁단최고기온、겁단최저기온、년증발량、해발고도화년평균기온.인차,재간한구조림생산실천급취백인충추엄과정중,재관주년강수량적동시,열량인자적영향불용홀시,우기시≥10℃적온대취백생장산생중요적영향.
To study growth and influencing factors of Sabina vulgaris, habitat and growth conditions for re-gions of natural distribution in Inner Mongolia were surveyed, and the relationship between growth and eco-logical factors were analyzed with Grey System Theory. Results showed that (1) S. Vulgaris could grow in arid and semiarid areas with an average annual temperature >-5.0℃, an extreme minimum temperature >-43.0℃, an extreme high temperature < 38.6℃, and an average annual rainfall > 180 mm. Also, the average annual shoot growth was between 7.7 and 14.6 cm. (2) According to Grey System Theory, the order of factors affecting S. Vulgaris growth were : ≥ 10℃ accumulated temperature > annual precipitation > extreme maximum temperature > extreme minimum temperature > annual evaporation > altitude > average annual temperature. So for afforestation through introduction and dissemination of S. Vulgaris in arid areas, annual precipitation should be considered, but the heat factor should not be ignored, especially the 10℃ accumulated temperature.