Street trees matter too, especially in a city like Singapore that hosts the greatest number of endangered bird and plant species.

街边的数木也很重要，特别是在新加坡市这样一个拥有世界上最多种类濒危鸟类和植物物种的城市。

Like Jenny's street trees, forest trees may begin to grow more slowly, reproduce less often and then die young.

像 Jenny 的行道树一样，森林树木可能也会开始生长缓慢，繁衍次数减少然后早早枯萎。

But in Detroit between 2011 and 2014 a quarter of eligible homeowners turned down an offer from a local nonprofit for free street trees.

但在2011年至2014年期间，底特律有四分之一符合条件的房主拒绝了当地非营利机构提供的免费行道树。

And you can see over time when a pole camera goes up, a mature street tree goes down.

随着时间的推移，你可以看到，当杆式摄像机升起时，一棵成熟的行道树就会倒下。

Like Jenny's street trees, forest trees may begin to grow more slowly, reproduce less often and then die young.

达夫：就像珍妮的行道树一样，森林树木可能开始生长得更慢，繁殖频率降低，然后英年早逝。

But actually, the more I learn about these animals and insects and the plants that are in the city, the street trees, the more fascinating I find them.

但实际上，我对这些动物、昆虫和城市里的植物了解得越多，我就越觉得它们迷人。

There's also high-visibility crosswalks, street trees, these little offset curb extensions called chicanes, and that's just the start of it.

还有高能见度的人行横道、行道树、这些称为减速弯的小偏移路缘延伸，而这只是它的开始。

I mentioned that in Los Angeles, it's homeowners and residents who are responsible for the maintenance and cultivation of street trees.

我提到在洛杉矶，由房主和居民负责行道树的维护和种植。

She turned the brownstones into the Magnolia Tree Earth Center — a space for children to get environmental education including horticultural workshops, and lessons on how to care for and plant street trees.

她把褐砂石变成了“木兰树地球中心”——一个为孩子们提供环境教育的空间，包括园艺讲习班，以及如何照顾和种植街道树木的课程。

Research also indicates that green roofs can be integrated with drainage systems on the ground, such as street trees, so that the water is managed better and the built environment is made more sustainable.

研究还表明， 绿色屋顶可以与地面排水系统（例如行道树）相结合，从而更好地管理水， 使建筑环境更加可持续。