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/评估的机构名称（如相关）

Universidad de Valencia (Universidad de Valencia) - 西班牙

1.3 关于使用通过WOCAT记录的数据的条件

（现场）数据是什么时候汇编的？:

08/06/2015

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

1.4 所述技术的可持续性声明

这里所描述的技术在土地退化方面是否存在问题，导致无法被认为是一种可持续的土地管理技术？:

否

2.1 技术简介

技术定义:

Based on post-fire assessment, native vegetation will regenerate by natural processes giving the right conditions.

2.2 技术的详细说明

说明:

A wildfire is expected for the summer 2015 in the Caroig mountain range. The area was afforested with Aleppo pines during the 20th century and nowadays the landscape is composed by mature Aleppo pines at different stages of development and shrub vegetation in the understorey.

The research team of the University of Valencia will implement an experiment based on the sediment fences technique to capture and measure post-fire soil losses in a natural burned landscape.

Purpose of the Technology: The post-fire environment will be developed in a natural process. Burned logs, trees and ashes will promote soil cover and together with the lack of intervention with heavy machinery, is expected to decrease soil erosion by increasing roughness, decrease of runoff velocity, and increase water infiltration.

Establishment / maintenance activities and inputs: There are no maintenance activities since the main purpose is the natural re-vegetation.

Natural / human environment: The Aleppo pine trees in the region are typically planted as monoculture for wood production. The landscape reflects a long history of intense land management, with a mosaic of (semi-)natural and man-made agricultural (terraces) and afforested lands. Since the 1970´s, however, wildfires have increased dramatically in frequency and extent, driven primarily by socio-economic changes.

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

3.2 应用该技术的当前土地利用类型

注释:

Major land use problems (compiler’s opinion): When high fire severity, it is expected a runoff and soil erosion increase, resulting in a decrease of on-site fertility and derived off-site effects such as loss of water quality, reservoirs water volume storage, higher risk of flooding and human beings damage. When low-moderate fire severity a natural mulch will occurs and together with resproting shoots will keep low erosion rates.

Major land use problems (land users’ perception): Loss of wood resources.

Plantation forestry: no management increasing fuel load

Forest products and services: timber, fuelwood, fruits and nuts, grazing / browsing, other forest products / uses (honey, medical, etc.), nature conservation / protection, recreation / tourism, protection against natural hazards

3.4 该技术所属的SLM组

• 改良的地面/植被覆盖
• 最小的土壤扰动

• Minimal disturbance of the eco-system

3.5 技术传播

注释:

The application is foreseen after a wildfire

3.7 该技术强调的主要土地退化类型

注释:

Main causes of degradation: soil management (monoculture plantations are prone to wildfire), deforestation / removal of natural vegetation (incl. forest fires) (forest fires), Heavy / extreme rainfall (intensity/amounts) (Post-fire high intensity rain events promotes huge soil erosion rates), droughts (Dry vegetation acts as a fuel.)

Secondary causes of degradation: crop management (annual, perennial, tree/shrub), over-exploitation of vegetation for domestic use, overgrazing, industrial activities and mining, urbanisation and infrastructure development, discharges (point contamination of water), release of airborne pollutants (urban/industry…), disturbance of water cycle (infiltration / runoff), over abstraction / excessive withdrawal of water (for irrigation, industry, etc.), change in temperature, change of seasonal rainfall, floods, population pressure (Depopulation increase fire risk), land tenure, poverty / wealth, labour availability, inputs and infrastructure: (roads, markets, distribution of water points, other, …), education, access to knowledge and support services, war and conflicts, governance / institutional

4.1 该技术的技术图纸

4.2 技术规范/技术图纸说明

Natural revegetation. Shrubs resprouting 8 months after a wildfire.

Location: Valencia. Spain

Date: 05/04/2013

Technical knowledge required for field staff / advisors: moderate (led the landscape to revegetate based on fire severity indicators)

Technical knowledge required for land users: low

Main technical functions: control of raindrop splash, improvement of ground cover, increase of surface roughness, increase in organic matter, sediment retention / trapping, sediment harvesting, increase of biomass (quantity), promotion of vegetation species and varieties (quality, eg palatable fodder)

Secondary technical functions: control of dispersed runoff: retain / trap, control of dispersed runoff: impede / retard, control of concentrated runoff: retain / trap, control of concentrated runoff: impede / retard, control of concentrated runoff: drain / divert, reduction of slope angle, reduction of slope length, improvement of surface structure (crusting, sealing), improvement of topsoil structure (compaction), improvement of subsoil structure (hardpan), stabilisation of soil (eg by tree roots against land slides), increase in nutrient availability (supply, recycling,…), increase of infiltration, increase / maintain water stored in soil, increase of groundwater level / recharge of groundwater, water harvesting / increase water supply, water spreading, improvement of water quality, buffering / filtering water, reduction in wind speed, control of fires, reduction of dry material (fuel for wildfires), spatial arrangement and diversification of land use

Change of land use type: no management

Change of land use practices / intensity level: no management

Major change in timing of activities: no management

4.8 影响成本的最重要因素

描述影响成本的最决定性因素:

There is no cost because the technology to implement is keep the system as it is after a wildfire promoting the revegetation of resprouting trees and shrubs.

5.1 气候

5.2 地形

关于地形的注释和进一步规范:

Slopes on average: Also steep (31-60%)
Landforms: Also hill slopes
Altitudinal zone: 501-1000 m a.s.l. (650-700)

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 depth on average: Very shallow (Leptosol) and shallow (Cambiosol)
Soil fertility is medium
Soil drainage/infiltration is medium
Soil water storage capacity is high

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:

Availability of surface water: Medium (few permanent water courses in the area)

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

5.7 应用该技术的土地使用者拥有或租用的平均土地面积

5.9 进入服务和基础设施的通道

6.1 该技术的现场影响

社会文化影响

生态影响

水循环/径流

土壤

生物多样性:植被、动物

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

	季节	气候变化/极端天气的类型	该技术是如何应对的？
年温度		增加	未知

气候有关的极端情况（灾害）

气象灾害

	该技术是如何应对的？
局地暴雨	不好
局地风暴	未知

气候灾害

	该技术是如何应对的？
干旱	不好

水文灾害

	该技术是如何应对的？
比较和缓的（河道）洪水	不好

其他气候相关的后果

其他气候相关的后果

	该技术是如何应对的？
缩短生长期	未知

6.7 该技术的优点/长处/机会

土地使用者眼中的长处/优势/机会
Land users are not fully aware to leave natural revegetation as a technique.

编制者或其他关键资源人员认为的长处/优势/机会
It is a technology easy to apply. Just left natural revegetation. How can they be sustained / enhanced? selecting appropriate areas to natural revegetations requires technical formation on post-fire effects.

6.8 技术的弱点/缺点/风险及其克服方法

编制者或其他关键资源人员认为的弱点/缺点/风险	如何克服它们？
Selected areas to keep unaltered must be assessed by specialist.	Formation on post-fire mitigation and restoration techniques