论文部分内容阅读
通过皖北地区不同栽植密度的杨树与小麦、大豆等农作物复合的对比试验,对杨树材积生长量、碳贮量、固碳量及林下作物经济效益等方面综合评价。结果表明,杨树碳贮量、固碳量及材积生长量之间具有紧密的相关性。杨树总碳贮量增多,并不意味着单株林木的碳贮量也增大。在试验密度范围内(4 m×6 m、3 m×8 m和2 m×6 m),以杨树株行距为3 m×8 m的模式综合效益最高,其单株杨树碳贮量较其他3种模式均有较大提升。
Through the comparative experiments of poplar and wheat, soybean and other crops with different planting densities in northern Anhui, comprehensive evaluation was made on poplar volume growth, carbon storage, carbon sequestration and under-crop economic benefits. The results showed that there was a close correlation between poplar carbon storage, carbon sequestration and volume growth. The increase in poplar total carbon stocks does not mean that the carbon stocks of individual trees also increase. In the test density range (4 m × 6 m, 3 m × 8 m and 2 m × 6 m), the poplar tree row spacing of 3 m × 8 m of the comprehensive efficiency of the highest, the individual poplar carbon storage More than the other three models have greatly improved.