1.2 参与该技术评估和文件编制的资源人员和机构的联系方式

有助于对技术进行记录/评估的项目名称（如相关）

有助于对技术进行记录/评估的机构名称（如相关）

1.3 关于使用通过WOCAT记录的数据的条件

编制者和关键资源人员接受有关使用通过WOCAT记录数据的条件。:

是

2.1 技术简介

技术定义:

Perennial grasses in orchards and vineyards between rows to provide permanent soil cover

2.2 技术的详细说明

说明:

The Veneto region has a strong tradition of fruit production, estimated in ca. 4% of total turnover in the agricultural sector. A sustainable fruit orchard management has the ambition to combine fruit production with the maintenance of soil fertility. The increase or preservation of soil fertility can be supported by means of soil management techniques, such as green cover. Compared with systems that does not use a permanent soil protection, green cover provides long-term agronomical and environmental benefits due to a reduction of negative impacts on agro-ecosystems. The technology is an effective practice to provide a natural supply of mineral elements to the soil surface, while the stabilisation of root system improves the soil physical properties. Moreover, the permanent soil cover prevents water erosion and limits the leaching of nutrients (particularly nitrates) and pesticides.

Purpose of the Technology: The purpose of adopting a permanent green cover in orchards is the prevention of soil and water degradation, especially soil erosion by heavy rainfall events and water. Secondary purpose is restoring soil biodiversity through the soil protection from pesticides, heavy machinery equipment and loss of soil structure.

Establishment / maintenance activities and inputs: Green cover comprises naturally occurring, or sown, perennial grasses which form the permanent soil cover. The stabilisation of an herbaceous covering over the years allows the passage of machinery after rainfall events by improving the efficiency of farming operations. Due to the competition with fruit trees for nutrients, during the first 2-3 years following orchard plantations the soil is handled without a continuous cover or with a large strip of bare soil around the row. After system stabilisation, green vegetation is periodically cut, depending on the seasonal variability, and left on the soil surface as mulch.

Natural / human environment: If water is not a limiting factor for fruit production, the permanent vegetation cover is the best way to improve soil physical properties and generally soil fertility with a low economic investment. Moreover the technology acts as a filter for water depuration due to a reduction of water runoff and the consequent deposition of suspended solids sediment-bound nutrients.

2.3 技术照片

2.5 已应用该技术的、本评估所涵盖的国家/地区/地点

2.6 实施日期

如果不知道确切的年份，请说明大概的日期:

• 10-50年前

2.7 技术介绍

详细说明该技术是如何引入的:

• 通过土地使用者的创新

3.2 应用该技术的当前土地利用类型

同一土地单元内混合使用的土地：:

是

具体说明混合土地使用（作物/放牧/树木）:

• 农林业

农田

• 一年一作
• 多年一作（非木材）
• 乔木与灌木的种植

年作 - 具体指明作物:

• 饲料作物 - 三叶草
• 饲料作物 - 草

多年生（非木质）作物 - 指定作物:

• 花卉作物 - 多年生

乔木和灌木种植 - 指定作物:

• 仁果类（苹果、梨子、柑橘等）
• 核果（桃、杏、樱桃、李子等）

• kiwi

每年的生长季节数:

• 1

具体说明:

Longest growing period in days: 210 Longest growing period from month to month: March to OctoberSecond longest growing period in days: 180

注释:

Major cash crop perennial cropping: Apple, pear, peach, kiwi
Grass species: fescue, ryegrass, orchard grass, clover

Major land use problems (compiler’s opinion): Soils in the Veneto region generally suffer from a loss of soil organic matter (SOM) that is strongly affected by their natural texture and climatic conditions. In tree cropping systems, where permanent green cover is not applied, the problem of loss of soil fertility is associated with degradation of water resources due to sediment transportation and contaminations by excessive nutrients and pesticides.

3.5 该技术所属的SLM组

• 改良的地面/植被覆盖
• 横坡措施

3.6 包含该技术的可持续土地管理措施

农艺措施

• A3：土壤表面处理

植物措施

• V2：草和多年生草本植物

注释:

Main measures: vegetative measures

Secondary measures: agronomic measures

Type of agronomic measures: mulching

Type of vegetative measures: scattered / dispersed

3.7 该技术强调的主要土地退化类型

生物性退化

• Bc：植被覆盖的减少

水质恶化

• Hp：地表水水质下降

注释:

Main type of degradation addressed: Bc: reduction of vegetation cover, Hp: decline of surface water quality

Main causes of degradation: soil management, population pressure

3.8 防止、减少或恢复土地退化

具体数量名该技术与土地退化有关的目标:

• 防止土地退化
• 减少土地退化

注释:

Main goals: mitigation / reduction of land degradation

Secondary goals: prevention of land degradation

4.1 该技术的技术图纸

技术规范（与技术图纸相关）:

Representation of an apple orchard with complete soil cover. Green cover around the trees is sometimes devitalised since the grass cutting is a time-consuming labour.

Location: Veneto region

Technical knowledge required for field staff / advisors: low

Technical knowledge required for land users: low

Main technical functions: control of raindrop splash, control of dispersed runoff: retain / trap, control of dispersed runoff: impede / retard, improvement of ground cover

Secondary technical functions: control of concentrated runoff: retain / trap, control of concentrated runoff: impede / retard, increase of surface roughness, increase in organic matter, increase in nutrient availability (supply, recycling,…), improvement of water quality, buffering / filtering water

Mulching
Material/ species: Grass mowing
Quantity/ density: 3 times/y

Scattered / dispersed
Vegetative material: G : grass

Grass species: fescue, ryegrass, orchard grass, clover

作者:

Nicola Dal Ferro

4.3 技术建立活动

4.4 技术建立所需要的费用和投入

4.5 维护/经常性活动

4.6 维护/经常性活动所需要的费用和投入（每年）

4.7 影响成本的最重要因素

描述影响成本的最决定性因素:

Labour of grass cutting/mulching is the major cost component for SLT maintenance.

5.1 气候

5.2 地形

5.3 土壤

如有可能，附上完整的土壤描述或具体说明可用的信息，例如土壤类型、土壤酸碱度、阳离子交换能力、氮、盐度等。:

Soil fertility is low-medium
Soil drainage/infiltration is medium
Soil water storage is capacity medium

5.4 水资源可用性和质量

关于水质和水量的注释和进一步规范:

Groundwater table: <5m a.s.l. (The area surrounding the Venice lagoon (1240 km2) is even below the sea level (down to -2 m) and currently cultivated due to land reclamation. As a result water table is kept artificially low)

Water quality (untreated): Good drinking water (groundwater) and for agricultural use only (surface water can be used for agricultural purposes but not as drinking water)

5.5 生物多样性

关于生物多样性的注释和进一步规范:

High population density, infrastructures and intensive agriculture practices affect the state of biodiversity.

5.6 应用该技术的土地使用者的特征

说明土地使用者的其他有关特征:

Land users applying the Technology are mainly common / average land users

Population density: 200-500 persons/km2

Annual population growth: 0.5% - 1%

100% of the land users are average wealthy.

5.7 应用该技术的土地使用者使用的平均土地面积

5.8 土地所有权、土地使用权和水使用权

土地使用权:

• 个人

5.9 进入服务和基础设施的通道

6.1 该技术的现场影响

社会经济效应

生产

社会文化影响

生态影响

水循环/径流

土壤

生物多样性:植被、动物

其它生态影响

6.2 该技术的场外影响已经显现

6.3 技术对渐变气候以及与气候相关的极端情况/灾害的暴露和敏感性（土地使用者认为的极端情况/灾害）

渐变气候

渐变气候

气候有关的极端情况（灾害）

气象灾害

气候灾害

水文灾害

其他气候相关的后果

其他气候相关的后果

6.4 成本效益分析

技术收益与技术建立成本相比如何（从土地使用者的角度看）？

技术收益与技术维护成本/经常性成本相比如何（从土地使用者的角度看）？

6.5 技术采用

在所有采用这项技术的人当中，有多少人是自发的，即未获得任何物质奖励/付款？:

• 91-100%

注释:

100% of land user families have adopted the Technology without any external material support

6.7 该技术的优点/长处/机会

6.8 技术的弱点/缺点/风险及其克服方法

7.1 信息的方法/来源