2015年,MTP项目与内蒙古通辽市巴胡塔苏木的召根嘎查和边界嘎查合作,以杂交杨树为主,对两个村的3块沙荒地进行了生态修复。 另外从2014年造林地储备中,提取966亩补充入2015年林地,即为2015-2地块。 测量数据显示,林地的平均树高和地径都呈现逐年上升趋势,林地日趋稳定。而林地存活率较2016年大幅上升,2017年林地并没有补植,推测原因是对于存活率少于30%的样点,百万植树计划不再进行林地测量。
In addition to the three plots planted in 2015, MTP accounted one plot planted in 2014 as Plot 2015-2. The forest is stable as the investigation shows that the average height and basal diameter are growing steadily each year. The survival rate also rises dramatically in 2017.
林木的生长受土壤状况的影响较大,水土条件好的区域内样点成活率好,而林地中土壤板块状情况明显,在情况严重的区域则面临全面死亡的可能性。
The forest condition varies in different soil condition. As shown in the image above, the plate-like soil made it hard for the trees to survive.
林地中风蚀倾倒的情况十分常见,立木死亡数量大幅减少及风蚀倾倒数量提高,说明沙丘移动和风蚀是林地除放牧外另一重要的死亡原因。
Wind erosion is common to see on site. Apart from grazing, the moving sand dune and wind erosion are other main reasons attributed to the death of the trees.