香港特別行政區政府 環境保護署
香港品牌形象
搜尋 網頁指南 聯絡我們
圖像
主頁
環評與規劃
環境影響評估條例
網上環評
關於環評與規劃
策略性環境評估
環境管理工具
指引與參考資料
搜尋此部份
環境保護互動中心 部門刊物 環保標準及統計資料
空氣 廢物 環評與規劃
噪音 水質 環境保育
空白 主目錄 空白

研究報告

SECTION 3 NATURAL RESOURCES CAPITAL STOCK

3.3 Agriculture and Fisheries
   
Pressures Common to Agriculture and Capture Fisheries Resources
   
3.3.2.11

Both the agriculture and fisheries industries produce food for the local market. As such both must ensure that the natural environment which supports them remains free of substances that may taint the products, either by creating a health risk or by attaching a stigma to locally produced foods. In the agricultural sector threats could arise from the use of certain pesticides or excessive quantities of chemicals, or from improper rearing, slaughtering or product handling procedures. In the marine environment, threats from algal blooms, or red tides, may harm the quality or reputation of fisheries products, and high levels of contaminants in locally produced shellfish may diminish the market for these products. The impacts of environmental quality on food products can affect both the quantity of production (eg lower yields in polluted environments), the quality of production (eg poor quality products fetch lower prices or are shunned by consumers) or both. These issues illustrate both the relationships between food production and economic (man-made) capital, as well as between agricultural and fisheries resources and the assimilative capacity of the environment to absorb pollution (Section 5).

   
3.3.3 Sustainability Appraisal

   
 
3.3.3.1

In common with many other major world cities, Hong Kong's agriculture and fisheries natural capital stock does not fully support the local demand for fresh foodstuffs, and alternatives have already been sourced to meet demand. As such, there is no particular critical threshold of local production which can be used as a sustainability benchmark. While maintaining and improving local food production provides a measure of self-sufficiency, it is unrealistic to expect that Hong Kong, in line with many other major world cities, can rely solely on its own internal resources for its food supply needs. Instead, it is more useful to consider both agricultural and fisheries resources in terms of maximising the potential value of these resources in all senses of the natural capital stock.

   
3.3.3.2 Identifying the appropriate balance between local agriculture and fisheries production versus competing alternatives (eg conversion of all agricultural land to development, or diversion of funds for fisheries management to incentives for the mariculture industry), it is important to assess the value of the production itself as well as the associated benefits. For agricultural resources, these include ecological values such as habitat for water birds, landscape values such as open space and aesthetic variety, and the heritage value of preserving traditional activities including, in some cases, historical structures or sites. The associated benefits of enhancing fisheries resources would include ecological benefits to non-commercial fish species, marine mammals and other marine organisms, as well as the scientific value of re-establishing species that are now rare in Hong Kong and the recreational values (including tourism) associated with improved angling and diving opportunities.
   
3.3.3.3 It is also important to acknowledge that the agriculture and fisheries industries produce unwanted byproducts, such as pesticide residues, nutrient enrichment around fish culture zones, and seabed disturbance from trawling. These detrimental environmental effects should be balanced against the ancillary benefits described above in order to determine the appropriate controls and incentives for these industries.
   
3.3.3.4 Whether Hong Kong's food resources are produced locally or imported from the immediate hinterland or farther abroad, the quality of the supply must be ensured through regulation, inspection and testing and perhaps greater labelling of products. Applying the sustainability concept beyond the immediate environs of Hong Kong could entail greater attention to sources of food supplied and whether these producers are operating under standards applicable in Hong Kong. Where this is not the case, for example many vendors in the live fish trade, policy or public education initiatives could be used to encourage changes in supply practices. A summary of key sustainability issues for agriculture and fisheries capital stock is shown in Figure 3.3a.
   
3.3.3.5 The HKSAR Government is already taking several steps to enhance agricultural products and fisheries resources. Agricultural initiatives include the implementation of the Accredited Vegetable Farm Scheme to encourage the raising of standards in vegetable farming, encouragement of improved hygiene standards in markets through better facilities and tenancy requirements, and plans to launch training sessions for farmers on the proper use of pesticides. These measures, while arguably not directly associated with Hong Kong's agricultural resources natural capital stock, do address the articulated policy objective of ensuring the provision of fresh high quality food produce to meet the needs of Hong Kong.
   
3.3.3.6 In the marine environment initiatives include designation of additional marine parks/reserves, deployment of artificial reefs both within and outside of marine parks, and development of a fisheries management programme based initially on a licensing system. Provided the appropriate powers and resources are vested in the management organisations responsible for these programmes, and that effective management and control measures are implemented, improvements in the fisheries resources natural capital stock will be realised.

 

Back to topBackTable of ContentNext

 

   
 
2005 版權標誌| 重要告示

最近修訂日期: 二零零五年十二月二十二日