| The importance of non-timber forest products has been increasing attention by people.The comprehensive incentive leads to ecological imbalance such as large-scale deforestation and forest degradation, and the responsible for danger and disaster arising due to the change. Human have to re-understanding resources and value of non-timber forest products. Especially at the very important period to China's forestry development, which with lumber production is a center turn to with forest multi-function development is a center and adequately develop ecological benefit of the forest, society benefit and economic benefits. Under the condition, the development of non-timber forest products can maximize the ecological benefits of forests and exploit the economic benefit. This is an important way which compatible with ecological and economic in sustainable forest resources management.In this study, taking Baoxing County in Sichuan province as the case, base on field investigation and collect wealth of information were carried out, use the PRRA method combined InVEST model to evaluate the habit quality and the service function of non-timber forest products in Baoxing County.First, collected land use, vegetation cover, roads, population, forest management information and other relevant information in Baoxing County by 2005.Based on' geographic information system method, calculate the habitats quality to determine the biological spatial pattern of habitat quality. Then, based on habitat quality and forest management information, identify available and relatively harvest volume of non-timber forest products. According to the case studies, building the assessment system of the ecosystem service functions of non-timber forest products and verifying the feasibility of the model. Also, based on the PRRA survey results, analyze the actuality of non-timber forest product harvested and the present problems in. Baoxing County. Some advices on how to protect, develop and exploit non-timber forest products resources were given by this paper. Ultimately, provide scientific reference for Integrated Ecological Management (IEM)and decision-making in Baoxing County. Main results were shown as follows:(1)For the biological spatial pattern of habitat quality in Baoxing County, most of the area is better; some region is lower by intensive human disturbance.In this area, mostly land-use patterns are forest and grassland, agricultural area is relatively low. Also, due to the terrain and economic development constraints, roads and settlements were relatively sparse. So the overall human disturbance is not strong. The greatest influences are livestock grazing and mining on habitat quality, secondly are agriculture, roads and population density. Relative the habitat quality average score from high to low is Daxi Township (0.992), Mupin Town (0.981),Fengtonzhai Township (0.976), Lingguan Town (0.975), Wulong Township (0.972), Yongfu Township (0.963),Longdong Town (0.958), Qiaoqi Township (0.948) and Mingli Township (0.943).Habitat quality results show:the best habit quality region is Daxi Township, Mupin Town and Fengtonzhai Township, provided relatively favorable habitation for living creatures. Lingguan Town and Wulong Township are the higher levels of economic development region, their habit quality are worse.In the higher elevations grazing region in Yongfu Township and Qiaoqi Township, mining region in Mingli Township, agriculture region and uncovered rock & gravel region in Longdong Town, their habit quality are worst.(2) For available harvested amount value of non-timber forest products in Baoxing County, the highest region is Qiaoqi Township and Yongfu Township;the higher region is Fengtonzhai Township and Longdong Town; the lower region is Lingguan Town, Mupin Town and Mingli Township; the lowest region is Wulong Township and Daxi Township. This is mainly determined by the habitat quality and the environmental factors suitability of non-timber forest products growth. For relative harvested amount value of non-timber forest products in Baoxing County, the highest region is Lingguan Town and Qiaoqi Township; the higher region is Fengtonzhai Township, Yongfu Township and Longdong Town; the lower region is Mingli Township and Mupin Town; the lowest region is Wulong Township and Daxi Township. The main cause is the model calculates the relative harvested amount value of non-timber forest products take into account the non-timber forest products that people demand and the realization supply conditions.For the utilization rate of NTFP, Wulong Township is highest regions,38.50%;higher regions are Daxi Township (22.92%) and Lingguan Town (21.46%); the middle regions are Mingli Township(13.03%)and Mupin Town (12.47%); the lowest regions are Fengtonzhai Township, Longdong Town, Qiaoqi Township and Yongfu Township, from 2.80% to 5.83%.Non-timber forest products have broad space for development and utilization in Baoxing County, especially in the superior natural conditions and rich in non-timber forest products reserves regions.(3) As the special natural and geographical environment, there have abundant species of non-timber forest products in Baoxing County. Investigation results show the community mainly harvested non-timber forest products resources include wild vegetables, wild funguses, wild medicine plants and nectar resources. Wild vegetables are widely distributed at alpine gorges low altitude region, main harvested products include bracken, Houttuynia cordata and bamboo shoots, etc. Wild funguses are distributed at Qiaoqi Township, Yongfu Township, Longdong Town and Mingli Township; etc, main harvested products include Morehella esculenta, Collybia platyphylla, Boletasaereus violaceo-fuscus, etc. Wild medicine plants are distributed in all regions; main harvested products include precious herbs,as caladium, Gastrodia elata and other miscellaneous medicine plants. Nectar resource is distributed in all regions, mainly concentrated in Qiaoqi Township, Yongfu Township and Fengtonzhai Township.(4) According present utilization situation analysis of non-timber forest products harvested, the main problems include:resource utilization is not high; a conflict between conservation and use; development level is not high, market information and distribution channels are deficient; environmental awareness is deficient, development and utilization is imbalance; technology and capital investment is insufficient, etc. And according to this,some advices on how to conduct public awareness;strengthen infrastructure;establish mechanism of forest co-management; make reasonable industrial planning of non-timber forest products; establishment the assessment and monitoring system of non-timber forest products harvested; formulate the standards of non-timber forest products collection and management regulations, etc were given by this paper. |
PDF Full Text Request