A plant nutrition strategy for ex-situ conservation based on "Ecological Similarity"

基于“生态相似性”的珍稀濒危物种植物营养保育策略(英文)

This paper reviewed a large scale conservation work of rare and endangered plants currently conducted in main botanical gardens in China, and the existed, predictable and neglected problems on plant growth and reproduction in ex-situ conservation process. Considered the status quo in plant ex conservation, a nutritional strategy on the plant conservation was proposed based on ＇Ecological Similarity＇. Its main idea was that the ex-situ conservation plants coming from natural ecosystem were compulsively allocated in the agro-ecosystems and would return to natural ecosystem ultimately. Therefore, research on plant nutrition of the ex-situ conservation plants should neither just pursue yield and quality as that in agro-ecosystems nor merely stay on intrinsic natures without human intervening. We should give attentions to both of their attributes as in natural ecosystems and in agro-ecosystems, i.e., taking full advantage of plant nutritional measures as in agro-ecosystems to solve actual survival problems of the ex-conservation plants, and ensuring the final goal of returning to nature and playing its ecological role.

中国主要植物园目前正开展大规模的珍稀濒危植物迁地保护工作,但业已存在和可预见的生长繁殖障碍问题在迁地保护过程中往往被忽视。本文针对这一现状,提出了"基于‘生态相似性’的珍稀濒危物种迁地保护植物营养保育策略"。其主要思路是:迁地保护物种来自于自然生态系统,被人为安置在人工生态系统,最终它们将回归自然生态系统。因此,对于迁地保护物种的植物营养学研究,一方面应该有别于人工生态系统中的以追求产量与品质为主,另一方面也不能只停留在研究其固有的自然规律而排斥人为干预。我们必须兼顾其在自然生态系统与人工生态系统的双重属性,即依据"生态相似性"原理,充分运用人工生态系统中的植物营养学研究手段解决存在的实际问题,以保证物种最终回归大自然并发挥其应有的生态功能。参69。