soil-water belt

基本解释

The density of the Pinus tree-belt at the dune site should be paid special attention to because soil water holding capacity was poorer at this substrate;
由于沙丘土壤的保水性差，即使在夏秋雨季也不能有效保持水分，因此，沙丘油松林带应注意密度控制。
Some other problems such as soil and water loss, the large-scale desert belt in north, environmental destruction and pollution control in city, and so on.
水土流失与我国北方大规模荒漠化问题及城市的环境破坏与污染控制问题等等。
Of which, entironment analysis had too three parts in turn: soil resources carrying capacity analysis; water resources carrying capacity analysis and shelter belt optimization-control model analysis.
其中，生态环境分析按土地资源承载力分析、水资源可持续分析和防护林最优管理模式评价三大块展开；