WE Credit 1: Water Efficient Landscaping 2–4 Points Intent To

admin

试卷: WE 节水[查看]
WE Credit 1: Water Efficient Landscaping
2–4 Points

Intent
To limit or eliminate the use of potable water or other natural surface or subsurface water resources available on or
near the project site for landscape irrigation.

Requirements
OPTION 1. Reduce by 50% (2 points)
Reduce potable water consumption for irrigation by 50% from a calculated midsummer baseline case.
Reductions must be attributed to any combination of the following items:
-- Plant species, density and microclimate factor
-- Irrigation efficiency
-- Use of captured rainwater
-- Use of recycled wastewater
-- Use of water treated and conveyed by a public agency specifically for nonpotable uses
Groundwater seepage that is pumped away from the immediate vicinity of building slabs and foundations may be
used for landscape irrigation to meet the intent of this credit. However, the project team must demonstrate that
doing so does not affect site stormwater management systems.
OR
OPTION 2. No Potable Water Use or Irrigation1 (4 points)
Meet the requirements for Option 1.
AND
PAT H 1
Use only captured rainwater, recycled wastewater, recycled graywater or water treated and conveyed by a
public agency specifically for nonpotable uses for irrigation.
OR
PATH 2
Install landscaping that does not require permanent irrigation systems. Temporary irrigation systems used
for plant establishment are allowed only if removed within a period not to exceed 18 months of installation.

Potential Technologies & Strategies
Perform a soil/climate analysis to determine appropriate plant material and design the landscape with native or adapted plants to reduce or eliminate irrigation requirements. Where irrigation is required, use high-efficiency equipment and/or climate-based controllers.

WEC 1: 节水景观绿化
2–4分

目的
限制或取消使用自来水、场址中自然地表水和地下水进行景观绿化浇灌。

要求
选项1. 减少50% (2分)
依据计算的维护水量基准，将使用自来水浇灌的水量减少50%.
节水措施应是以下措施的组合：
-- 植物物种、密度和区域气候参数
-- 灌溉效率
-- 采用收集的雨水
-- 采用再生水
-- 专门的公共机构，所供给的非自来水系统
相近建筑中渗出的地表水，如果可收集泵送到本工程用以浇灌，也符合本项目要求。但必须说
明这样做不会影响雨洪管理系统。
或者
选项2. 不用自来水浇灌1 (4分)
首先满足选项1的要求。
并且
方式1
仅使用收集的雨水、循环再生水、中水或本地公共供应的专门用于非自来水之用的水进行浇
灌。
或者
方式2
配置的景观绿化不需要永久性的浇水系统。开始装置的用于植树、植花初期浇水系统，如在
一年拆除，则不算。

技术措施和策略
进行土壤/气候分析，确定合适材料和绿化设计，采用本地性植物来降低浇水需要量。如需要浇
水系统，采用高效灌溉措施、根据气候控制用水量。