Land Use in LCA: Including Regionally Altered Precipitation to Quantify Ecosystem Damage.
Land Use in LCA: Including Regionally Altered Precipitation to Quantify Ecosystem Damage.
复制标题
LCA 中的土地利用：包括区域降水变化以量化生态系统损害。
DOI：
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发表时间：
2016
影响因子：
11.4
通讯作者：
Mark S. Johnson
中科院分区：
文献类型：
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作者：
M. Lathuillière;Cécile Bulle;Mark S. Johnson
考虑到由降水或绿水再生的土壤水分对陆地生态系统和粮食生产的全球重要性，将这种资源纳入生命周期评估日益引起人们的兴趣。本文提出了一种降水和蒸散密切耦合的季节性干旱、半干旱和干旱区土地和水利用的影响评价模型。我们引入了降水减少潜在中点影响，代表了由于土地改造和占领活动而导致的下风降水的变化。然后，我们的终点影响模型利用木本植物物种丰富度、水和能量制度之间的关系，将陆地生态系统损害量化为降水损失的函数。然后，我们将中点和终点模型应用于亚马逊东南部的大豆生产，这是由于农田向热带森林的扩张造成的，对当地降水产生了明显的影响。我们提出的因果链是对以前的研究的补充，这些研究侧重于水消耗的影响和/或将蒸散发作为水循环的损失。
The incorporation of soil moisture regenerated by precipitation, or green water, into life cycle assessment has been of growing interest given the global importance of this resource for terrestrial ecosystems and food production. This paper proposes a new impact assessment model to relate land and water use in seasonally dry, semiarid, and arid regions where precipitation and evapotranspiration are closely coupled. We introduce the Precipitation Reduction Potential midpoint impact representing the change in downwind precipitation as a result of a land transformation and occupation activity. Then, our end-point impact model quantifies terrestrial ecosystem damage as a function of precipitation loss using a relationship between woody plant species richness, water and energy regimes. We then apply the midpoint and end-point models to the production of soybean in Southeastern Amazonia which has resulted from the expansion of cropland into tropical forest, with noted effects on local precipitation. Our proposed cause-effect chain represents a complementary approach to previous contributions which have focused on water consumption impacts and/or have represented evapotranspiration as a loss to the water cycle.