Ecological valuation of crop pollination in traditional Indonesian homegardens

传统的印尼家庭菜园通常拥有丰富的作物多样性，这似乎是可持续粮食优先战略的重要基础。昆虫传粉是一项重要的生态系统服务，但受到农业集约化和土地非农化的威胁。对授粉服务实际效益的认识差距限制了有效的管理规划。我们将利用综合农艺框架评估授粉功能服务，在印度尼西亚中苏拉威西岛进行生态实验和调查。本文拟在森林距离梯度下研究传统家庭菜园中黄瓜、胡萝卜和茄子等当地重要作物的授粉服务和净收益，并推测其对蜜蜂群落结构和多样性的影响。我们将评估授粉服务及其与限制果实成熟的环境变量的相互作用，基于在干旱、营养缺乏、杂草压力和草食性等因素的分块设计中的授粉实验。该项目的总体目标是发展“生物多样性友好型”土地使用管理，平衡当地小农的人类和生态需求。

Traditional Indonesian homegardens harbour often high crop diversity, which appears to be an important basis for a sustainable food-first strategy. Crop pollination by insects is a key ecosystem service but threatened by agricultural intensification and land conversion. Gaps in knowledge of actual benefits from pollination services limit effective management planning. Using an integrative and agronomic framework for the assessment of functional pollination services, we will conduct ecological experiments and surveys in Central Sulawesi, Indonesia. We propose to study pollination services and net revenues of the locally important crop species cucumber, carrot, and eggplant in traditional homegardens in a forest distance gradient, which is hypothesized to affect bee community structure and diversity. We will assess pollination services and interactions with environmental variables limiting fruit maturation, based on pollination experiments in a split-plot design of the following factors: drought, nutrient deficiency, weed pressure, and herbivory. The overall goal of this project is the development of “biodiversity-friendly” land-use management, balancing human and ecological needs for local smallholders.