英语翻译

题目

英语翻译
Generally,scientists are challenged by relating the ecosystem
properties measured (here:net ecosystem exchange,biomass
above- and below-ground,carbon fixation by photosynthesis,
nutrient ratios) to ecosystem functions and services,such as
productivity,carbon fixation,nutrient cycling,decomposition
and water regulation.Measuring ecosystem services is a fastdeveloping
research area with many debates on how to assess
the services adequately.

答案

这篇应该是中国人写的英文论文吧,因为感觉稍微有点啰嗦的感觉,诸如关于生态系统特征的表述方面,但可以翻译下.
一般来说,科学家们更关注于生态系统的各项特征（包括生态系统净交换、地上和地下生物量,碳的光合固定和营养比率等）与生态系统功能和服务的关系,诸如生物产量、碳固定、养分循环、生物分解以及水调节等等.生态系统服务的测量是一个高速发展的研究领域,即便在定量评估方面尚存有一定争议.