论文部分内容阅读
刺槐林具有喜光照,早期生长快,萌芽力强的特点.加之豫东沙区的刺槐林营造的密度比较大,如果不及时抚育间伐,林木个体之间为了争夺养分光照,有些林木生长的又高又大(霸王木),树冠在林冠之上层;另一些林木则处于被压地位,造成林木严重的两极分化.为了解决这些矛盾,近年来,通过抚育间伐标准地试验,初步摸索一些经验,试对豫东平原沙区人工刺槐林木抚育间伐中的有关间伐起始年限、间伐强度,方法、间隔期以及经济效益,提出一些意见,供参考.
Robinia pseudoacacia forest has the characteristics of hi light, early growth and strong germination.With the density of Robinia pseudoacacia growing in the sand area of East Henan, if the tree is not tending to thinning in time, in order to compete for nutrient light, some trees grow tall In order to solve these conflicts, in recent years, by tending the thinning standard test, preliminary exploration of some of the experience, try Some suggestions were put forward for reference to the relevant starting ages, thinning intensities, methods, interval periods and economic benefits of artificial black locust tree thinning in the sand area of East Henan Plain.