Zhang Yuyang, Yu Tao, Ma Wenbao, Dayananda Buddhi, Iwasaki Kenji, Li Junqing
The National-Local Joint Engineering Laboratory of High Efficiency and Superior-Quality Cultivation and Fruit Deep Processing Technology on Characteristic Fruit Trees, College of Plant Science, Tarim University, Alear 843300, China.
Beijing Key Laboratory for Forest Resources and Ecosystem Processes, Beijing Forestry University, Beijing 100083, China.
Plants (Basel). 2021 Sep 19;10(9):1958. doi: 10.3390/plants10091958.
Acid rain deposition (AR) has long-lasting implications for the community stability and biodiversity conservation in southwest China. is a critically endangered species in the rain zone of Western China where AR occurs frequently. To understand the effects of AR on the morphology and physiology of , we conducted an acid stress simulation experiment for 1.5 years. The morphological, physiological, and photosynthetic responses of to the acidity, composition, and deposition pattern of acid stress was observed. The results showed that simulated acid stress can promote the growth of via the soil application mode. The growth improvement of under nitric-balanced acid rain via the soil application mode was greater than that of sulfuric-dominated acid rain via the soil application mode. On the contrary, the growth of was significantly inhibited by acid stress and the inhibition increased with the acidity of acid stress applied via leaf spraying. The inhibitory impacts of nitric-balanced acid rain via the leaf spraying of were greater than that of sulfur-dominant acid rain via leaf spraying. The observations presented in this work can be utilized for considering potential population restoration plans for , as well as the forests in southwest China.
酸雨沉降（AR）对中国西南地区的群落稳定性和生物多样性保护具有长期影响。在中国西部经常出现酸雨的降雨区域，[具体物种名称未给出]是一种极度濒危物种。为了解酸雨对[具体物种名称未给出]形态和生理的影响，我们进行了为期1.5年的酸胁迫模拟实验。观察了[具体物种名称未给出]对酸胁迫的酸度、组成和沉降模式的形态、生理和光合响应。结果表明，模拟酸胁迫通过土壤施用模式可促进[具体物种名称未给出]的生长。通过土壤施用模式，在硝酸平衡酸雨条件下[具体物种名称未给出]的生长改善大于硫酸主导酸雨条件下的生长改善。相反，酸胁迫显著抑制了[具体物种名称未给出]的生长，且随着通过叶面喷施施加的酸胁迫酸度增加，抑制作用增强。通过叶面喷施硝酸平衡酸雨对[具体物种名称未给出]的抑制作用大于通过叶面喷施硫主导酸雨的抑制作用。本研究中的观察结果可用于考虑[具体物种名称未给出]以及中国西南地区森林的潜在种群恢复计划。
