乌鲁木齐煤田灭火区混土种植基质配比试验研究

利用基质材料混合种子以改良种子生长环境成为生态修复中施工方便、生态修复效率较高的一种方法。基质组分和配比是研究中的重点,文章以乌鲁木齐煤田灭火区为研究区,选择粘合剂、保水剂、羊粪、复合肥、秸秆和铺设厚度,利用正交试验设置试验方案,通过植物指标的极差和方差分析,获取研究区生态恢复的优方案和基质对指标的影响,为乌鲁木齐煤田灭火区生态修复提供新的方法。结果表明:(1)对1个月后的盖度、高度和密度而言,E(秸秆)是植被盖度的主要影响因子,具有极显著性。B(保水剂)是高度和密度的主要影响因子,呈极显著性。(2)对4个月后的植被生物量和盖度、高度和密度而言,D(复合肥)是3个生物量指标和密度的主要影响因子。E(秸秆)是盖度和高度的主要影响因子,B(保水剂)、D(复合肥)、E(秸秆)和F(铺设厚度)对盖度和高度都具有显著影响。(3)利用综合平衡法,根据多数倾向和经济节约原则及因素对指标的重要程度,选择优方案为A3B2C5D4E4F3。

Experimental Study on Matrix Proportion Mixing Soil in Urumqi Coal Field Fire-fighting Area

The way that is matrix materials mixing seed to improve seed growth environment is becoming a method of ecological restoration with convenient construction and high efficiency.Matrix components and combinations are the key in the research.Bonding agent,aquasorb,sheep manure,compound fertilizer,straw and paved thickness were chosen as impact factors,orthogonal experiment was done to design the test scheme,through extreme difference analysis and variance analysis of vegetation index,the schemes of optimization and influence of matrix on index were studied,for the purpose to provide a new way for ecological restoration of Urumqi coal field fire-fighting area.Results indicated that concerning vegetation cover,height and density after 1month,E(straw)is the main influencing factor of the vegetation cover with very significance.B(absorbent agent) is the main influencing factors of height and density with very significance.Concerning biomass,vegetation cover,height and density after 4month,D(compound fertilizer) is the main factors of three biomass indexes and density.E(straw)is the main influence factor of vegetation cover and the height,and B(absorbent agent),D(compound fertilizer),E(straw)and F(paved thickness)have notable effect on vegetation cover and height.According to the majority,economy and the importance of factors on index,the optimal scheme of A 3 B 2 C 5 D 4 E 4 F 3 is chosen on integral balance method.