东北林业大学学报
東北林業大學學報
동북임업대학학보
JOURNAL OF NORTHEAST FORESTRY UNIVERSITY
2010年
3期
1-3,7
,共4页
闫家锋%邓送求%周伟%关庆伟%董鹏%王宇
閆傢鋒%鄧送求%週偉%關慶偉%董鵬%王宇
염가봉%산송구%주위%관경위%동붕%왕우
侧柏%空间结构%混交度%角尺度%大小比数%云龙山
側柏%空間結構%混交度%角呎度%大小比數%雲龍山
측백%공간결구%혼교도%각척도%대소비수%운룡산
Platycladus orientalis%Spatial structure%Mingling degree%Uniform angle index%Neighborhood comparison%Yunlong mountain
为了提高徐州市石灰岩山地侧柏人工林的生态和景观质量,利用混交度、大小比数和角尺度3种结构参数结合树种组成,对比分析了云龙山侧柏林和皇藏峪森林公园内5种落叶阔叶林的空间结构.结果表明:侧柏林的零度和弱度混交比例高于落叶阔叶林,中度、强度和极强度混交的比例较小;从林木大小分化程度来看,侧柏在空间大小对比上占有一定的优势,其他样地内树种分化明显;从林木分布格局来看,侧柏林多呈聚集或随机分布.
為瞭提高徐州市石灰巖山地側柏人工林的生態和景觀質量,利用混交度、大小比數和角呎度3種結構參數結閤樹種組成,對比分析瞭雲龍山側柏林和皇藏峪森林公園內5種落葉闊葉林的空間結構.結果錶明:側柏林的零度和弱度混交比例高于落葉闊葉林,中度、彊度和極彊度混交的比例較小;從林木大小分化程度來看,側柏在空間大小對比上佔有一定的優勢,其他樣地內樹種分化明顯;從林木分佈格跼來看,側柏林多呈聚集或隨機分佈.
위료제고서주시석회암산지측백인공림적생태화경관질량,이용혼교도、대소비수화각척도3충결구삼수결합수충조성,대비분석료운룡산측백림화황장욕삼림공완내5충락협활협림적공간결구.결과표명:측백림적령도화약도혼교비례고우락협활협림,중도、강도화겁강도혼교적비례교소;종림목대소분화정도래간,측백재공간대소대비상점유일정적우세,기타양지내수충분화명현;종림목분포격국래간,측백림다정취집혹수궤분포.
Mingling degree, neighborhood comparison, and uniform angle index were used to study the spatial structure of Platycladus orientalis plantations in Yunlong Mountain and five deciduous broadleaved forests in Huangcangyu National Forest Park, aimed to improve the quality of ecological landscape of P. orientalis plantation in limestone mountainous areas in Xuzhou. The mingling degree of P. orientalis plantations was lower than that of the deciduous broadleaved forests, which indicates that the dominant species are mainly none- or less-mixed. P. orientalis had an advantage over other species in neighborhood comparison, and serious differentiation was found in both dominant species and suppressed species in other plots. Uniform angle index shows that the tree spatial distribution patterns for P. orientalis plantations are clumped or random.