论文部分内容阅读
对小兴安岭凉水国家级自然保护区红松阔叶混交林不同大小林隙及郁闭林分内丘坑复合体特征及分布格局进行了对比和分析.结果表明:大、中、小林隙及郁闭林分中丘坑复合体的丘宽、丘高、丘厚均大于与之对应的坑宽、坑长、坑深.大林隙内丘坑复合体的丘宽、丘高、丘厚、坑宽、坑长、坑深均最大,分别为2.85、0.37、2.00、2.99、2.10、0.39 m;郁闭林分均最小,分别为2.35、0.19、1.60、2.66、1.65、0.21 m.丘的平均体积(1.66 m3)均大于坑的(1.44m3).同一大小林隙内绝大多数丘坑复合体之间的特征值差异显著,而郁闭林分内绝大多数丘坑复合体之间的特征值差异不显著.不同大小林隙及郁闭林分丘坑复合体之间的特征值大多差异显著.2012年样地内丘坑复合体大多数特征值显著小于2011年.89.5%和60.5%的丘坑复合体类型为铰链式,形状为半椭圆状,丘坑复合体的分布格局为相对集中.
The characteristics and distribution pattern of different sizes of gaps and mound-pit complexes in the Korean pine broad-leaved mixed forest in Xiaoxing’anling Liangshui National Nature Reserve were compared and analyzed.The results showed that: the large, medium and small gaps and canopy The mound width, mound height and mound thickness of the mound hill complex in the stand are larger than the corresponding pit width, pit length and pit depth. The mound width, mound height, mound height, Length and pit depth were the largest, respectively 2.85,0.37,2.00,2.99,2.10,0.39 m; canopy stands were the smallest, were 2.35,0.19,1.60,2.66,1.65,0.21 m. The average volume of the mound (1.66 m3) were all larger than that of the pit (1.44m3) .The eigenvalues of the vast majority of hillocks in the same size gap were significantly different, while the eigenvalues of the vast majority of hillside complexes But not significant.The differences of eigenvalues between different sizes of gap and Yuqin subsidence complex were significant.Most eigenvalues of the inner hill pit in 2012 were significantly smaller than those in 2011. The erode of 89.5% and 60.5% The complex type is hinged, the shape is semi-oval, and the distribution pattern of mound-hole complex is relative .