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根据1991—2013年临安市雷竹笋产业数据,选取临安市雷竹分布重点乡镇的99个农户,采用问卷调查和实地测量相结合的方式对劳动力、覆盖技术、经营成本、施肥次数及竹林结构状况等进行调查与分析。结果表明:临安市雷竹林覆盖笋和自然笋的投产面积、产量、产值大致呈现出增长趋势,产量和产值整体表现为波动并显稍增长趋势;临安市雷竹林经营过程中劳动力不足现象明显;采用覆盖技术的农户占调查农户总数的66.7%;雷竹林覆盖过程中,经营成本最高的是覆盖物,为83715元·hm~(-2),占总成本的80%左右;雷竹林年施肥次数以3次最多;平均胸径、立竹度、竹龄,覆盖雷竹林分别为4.14 cm、19710株·hm~(-2)、2.56 a,而未覆盖雷竹林分别为3.93 cm、19170株·hm~(-2)、2.13 a,雷竹胸径、立竹度与覆盖与否相关性不大,而平均竹龄覆盖竹林基本上高于未覆盖竹林。
According to the industry data of bamboo shoots in Lin’an from 1991 to 2013, 99 farmer households in key towns of Thunb bamboo distribution in Lin’an City were selected. The methods of labor force, covering technology, operation cost, number of fertilization and structure of bamboo forest were selected by means of questionnaire survey and field survey. Etc. for investigation and analysis. The results showed that the production area, yield and output value of Phyllostachys pubescens forest coverage and natural bamboo shoots in Lin’an City showed a general trend of increase. The output and output value fluctuated and showed a slight increase trend. The phenomenon of labor shortage in Phyllostachys pubescens forest was obvious. The coverage of farmers accounted for 66.7% of the total number of households surveyed; the highest operating costs of the coverage of Lei-bamboo forests were coverings of 83,715 yuan · hm -2, accounting for about 80% of the total costs; The number of which reached the maximum of three times. The average diameter at breast height, standing bamboo height, bamboo age, and coverage of Phyllostachys pubescens were 4.14 cm, 19710 plants · hm -2, 2.56 a, hm ~ (-2), 2.13 a, thunderbolt diameter, stand bamboo degrees and coverage is not relevant, and the average bamboo age is basically higher than the bamboo forest coverage.