This paper summarized the effects of tree-grass complex system on trees and soil and its ecological and economic benefits.

概述了林草复合生态系统对林木和土壤的影响及林草复合的生态效益和经济效益。

youdao

The next are the main results: (1)The diurnal change rule of the process of photosynthetic physiological of different trees has the connection with the characteristics of trees and soil moisture.

主要研究成果如下： （1）不同树种光合生理过程日变化规律不同树木光合生理过程日变化规律即与树种特性有关也与土壤水分密切相关。

youdao

A massive oak claims its ground for 200 years or more, outcompeting all other would-be canopy trees by casting a dense shade and drawing up any free water in the soil.

200年或更久的时间里，一棵巨大的橡树占据了它的土地，投下浓密的树荫，吸收土壤中所有自由水分，打败了所有其他可能成为树冠的树木。

youdao

They brought in more than fourteen thousand cubic meters of fertile soil from New Jersey to make it possible to grow trees and other plants.

VOA: special.2009.10.30

Trees can also improve water quality around farms by removing pollutants from soil and groundwater.

VOA: special.2009.09.08

Landslips of thousands of tonnes of rock, soil and trees in Ystalyfera, Swansea valley, with 13 families advised to leave their homes and a road blocked.

BBC: Flood risk warning after heavy rain forecast in Wales

Plant the trees, secure the soil, and you save the money, while simultaneously giving people employment and securing the future for animals like the golden lion tamarin.

BBC: Rio +20: Joining the ecological dots

Soon the trees disappeared, the gradient increased and the soil became black and powder-fine.

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